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HomeMy WebLinkAboutBradley Lake PMC Special Meeting Teleconference 05-11-2011STATE OF ALASKA / roms sonme DEPARTMENT OF COMMUNITY AND 239 WEST FOURTHAVE, SUITE 220 RE AL AFFAIRS ANCHORAGE, ALASKA 99501-2341 GION PHONE: (907) 269-4500 DIRECTOR'S FAX: (907) 269-4645 DIVISION OF ENERGY ENGINEERING FAX: fon 269-4685 & printed on recycled paper b y C.D. AARARARRRARKKRRAARARRR AAR KBAR ARAKI RI IR RRR IR KOK IK KKK KKK KOK KKK KKK KKK KKK KKK KKK OOK KKK X x X X X X X X X x x x X x P, 01 TRANSACTION REPORT THTTNTT UTI TTT TIT TTT MAY-07-01 MON 09:42 AM SEND (IM) DATE START — RECEIVER TX TIME PAGES TYPE NOTE M# DP MAY-07 09:41 AM 92798170 39” 2 SEND (M) OK 023 SSS TOTAL 39S PAGES: 2 OOK KKK KKK KKK KKK KKK XK KKK KKK KK KKK KKK KK KKK KK KKK KK KK KKK KKK KKK KKK KOK KOK KKK KKK KKK ALASKA INDUSTRIAL DEVELOPMENT > AND EXPORT AUTHORITY /= ALASKA (QE ENERGY AUTHORITY 813 WEST NORTHERN LIGHTS BLVD. © ANCHORAGE, ALASKA 99503 # 907/269-3000 © FAX 907 / 269-3044 TOLL FREE (ALASKA ONLY) 888 / 300-8534 May 7, 2001 FAXED: 5/7101 2 PAGES Anchorage Daily News 1001 Northway Drive Anchorage, Alaska 99508 ATTENTION: Ms. Eva Alexie Legal Classified Subject: Public Notice - Special Meeting Account # ALAS0709 Enclosed is an advertisement for a SPECIAL MEETING for the Alaska Energy Authority which is to be published under “PUBLIC NOTICE” in the Legal Classified section in column format. This notice needs to be published for one day: Tuesday, May 8, 2001. x x x X x x x x x x XK x X X ALASKA INDUSTRIAL DEVELOPMENT > ¢ AND EXPORT AUTHORITY /= ALASKA mE =ENERGY AUTHORITY 813 WEST NORTHERN LIGHTS BLVD. =* ©ANCHORAGE, ALASKA 99503 ® 907/269-3000 © FAX 907 / 269-3044 TOLL FREE (ALASKA ONLY) 888 / 300-8534 May 7, 2001 FAXED: 5/7/01 2 PAGES Anchorage Daily News 1001 Northway Drive Anchorage, Alaska 99508 ATTENTION: Ms. Eva Alexie Legal Classified Subject: Public Notice - Special Meeting Account # ALASO709 Enclosed is an advertisement for a SPECIAL MEETING for the Alaska Energy Authority which is to be published under “PUBLIC NOTICE” in the Legal Classified section in column format. This notice needs to be published for one day: Tuesday, May 8, 2001. After the publication date, please provide an Affidavit of Publication. If you have any questions, please do not hesitate to call me. Thank you, WK a KX, Vea, ~ Shauna M. Dean Administrative Assistant Attachment BRADLEY LAKE PROJECT MANAGEMENT COMMITTEE List of Representatives Representative Alternate Eugene N. Bjornstad Chairman Norman L. Story Myles C. Yerkes Vice Chairman Stan Sieczkowski Secretary/Treasurer Michael Scott Hank Nikkels Dave Calvert Steve Haagenson Bradley Evans Wayne D. Carmony Bob Mau Ronald L. Saxton Legal Counsel Effective Date: 09/22/97 Revised Date: 03/07/01 h/all/sdean/bradley lake pme meeting/members listing.doc Utility Chugach Electric Association 5601 Minnesota Drive Anchorage, Alaska 99518 Phone: 563-7494 Fax: 562-6994 Homer Electric Association 3977 Lake Street Homer, Alaska 99603 Phone: 235-8167 Fax: 235-3323 AIDEA/AEA 813 W. Northern Lights Boulevard Anchorage, Alaska 99503-2495 Phone: 269-3000 Fax: 269-3044 Municipal Light & Power 1200 E. First Avenue Anchorage, Alaska 99501 Phone: 279-7671 Fax: 263-5204 City of Seward P.O. Box 167 (5th and Adams) Seward, Alaska 99664 Phone: 224-4071 Fax: 224-4085 Golden Valley Electric Association P.O. Box 71249 (758 Illinois) Fairbanks, Alaska 99707 Phone: 452-1151 Fax: 458-5951 Matanuska Electric Association P.O. Box 2929 (163 Industrial Way) Palmer, Alaska 99645-2929 Phone: 689-9211 Fax: 689-9368 Ater Wynne Hewitt Dodson Skerritt 222 S.W. Columbia, Suite 1800 Portland, Oregon 97201-6618 Ph: (503) 226-1191 Fax: 226-0079 BRADLEY PMC VOTING DATE: Agenda Item No. ves No ABS ves ans YES NO ABS CITY OF SEWARD 01% (| [4d MATANUSKA ELEC ASSOC 6 14%™ [_]_ |. 1 [LL_L. [ [ Ty | CHUGACH ELEC ASSOC 30% [| | | | [| | HOMER ELEC ASSOC 12% EFF] 6] GOLDEN VAL ELEC ASSOC 17% | EY az MUNI LIGHT & POWER 2% [_[ [| |] ALASKA ENERGY AUTHORITY Es]. GES | | {| A=4+ OVER 51% B= AEA CONCUR With A C = UNANIMOUS D= MAJORITY VOTING METHOD A: 3) Establishment of FY estimated annual 11) Requiring four yeas with 51% of utilities, with no AEA vote: 1) Procedures for scheduling, production and dispatch of project power. 2) Establishment of procedures for use of each purchaser's water allocation (AEA assent required for license requirements). 3) Selection among alternative methods that do not involve AEA for funding required project work. VOTING METHOD B: Requiring 4 yeas with 51% of utilities and AEA concurrence: 1) Arranging operation and maintenance of project. 2) Adoption of budget of annual project costs. VOTE(93Q3/BC5272) payment obligation and schedule of each purchaser. 4) Determination of annual project costs after each FY. 5) Evaluation of necessity for and scheduling of required project work. 6) Determination of appropriate amount of insurance. 7) Adoption of additional minimum funding amounts for renewal and contingency reserve fund above that required by bond resolution. 8) Selection among alternate methods that involve AEA for funding required project work. 9) Adoption or amendment of procedural committee rules (except dispute resolution). 10) Adoption of project maintenance schedules. 12) 13) 14) 15) Determination of rules, procedures and accounts necessary to manage project when no bonds outstanding. Evaluation and approval of optional project work and compensation for such work. Application of insurance claims proceeds not governed by bond resolution. Approval of procedures and any individual utility agreements relating to electric power reserves for project. Approval of consultants. VOTING METHOD C: Unanimous vote by all (including AEA) VOTING METHOD D: Majority vote (including AEA) Election of Officers RADLEY LAKE PMC/CHUGACH ELECTRIC ASSOC ON, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM will be required to expire prior to tripping the first unit. The second unit will be tripped 5 seconds after the first unit, if the oscillations have not decreased sufficiently (peak to peak oscillations of less than 30 MW). 7 Preliminary Schedule and Budgetary Cost Estimate The design phase of the RAS project, assuming a notice to proceed and an approved design by 5/1/01, could be completed by 5/30/01. Based on plant personnel availability, it is anticipated that the installation could then commence on 6/1/01 and be completed by 6/8/01. Testing could then commence and be completed by 6/15/01, assuming plant scheduling could be arranged. The budgetary estimate for the Bradley RAS is $32,200." ' This includes the RAS hardware ($5000), programming, and markups of plant drawings ($15,000). Installation cost is estimated to be $ 3,000 (3 man-days, ten hours, $100/hour loaded). Estimated testing cost (personnel only, no power production costs included) is $ 8,000 (three test engineers, plus one plant personnel, two days, ten hours per day, $100/hour loaded). Estimated direct expenses for testing and installation is $1,200 (2 RT aircraft for testing/installation @ $200/RT and 8 days subsistence @ $50/day — HEA provided housing). ELECTRIC POWER SYSTEMS PAGE 8 MARCH 2001 RADLEY LAKE PMC/CHUGACH ELECTRIC ASSOC DN, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM e Unit 2 Deflector in Stream e Unit 1 Oscillation Detected e Unit 2 Oscillation Detected e Unit 1 reduce needle opening e Unit 2 reduce needle opening e Unit 1 Trip e Unit 2 Trip Responsibilities: EPS will design and implement the Bradley RAS, with assistance from Chugach for specification of the “deflectors in stream” calculation. Plant personnel will perform the installation of the system at the plant, and the interface of the system to local and SCADA annunciation. 6 Potential Negative Effects of the RAS The Bradley RAS is designed to operate independently of dispatcher intervention, and thus has predictable results. The potential “negative” effects of implementing the system as described are attributable only to the scenarios where control would be exerted. 6.1 Reduce Bradley Unit Needle positions If the RAS detects the deflector is in the stream, it will attempt to reduce the needle openings to the point that the deflectors are no longer in the stream. For the envisioned application, no significant real power output reduction should occur. The only effect would be to reduce the needle openings so that the deflectors are no longer in the stream. The control system will have verification in the control loop to limit any real power reduction due to this mode of remedial action. 6.2 Trip Bradley Lake units If the oscillations are severe, and the reduction of the Bradley needle positions fails to arrest the oscillations, then the RAS will sequentially trip the Bradley units. One unit will be tripped first, and time allowed to determine if the oscillations are diminished or arrested. If the oscillations do not cease, the second Bradley unit will be tripped so as to minimize damage to the units. If one or both units trip, and, depending on system configuration and spinning reserve, loadshedding may occur throughout, or in a single area of the interconnected system. The tripping logic will only be armed after (1) the “deflector in stream” alarm condition is detected, and (2) oscillations have been detected, either in the real power output or in the deflector “change in direction” calculation. After arming the trip, a timer (10-15 seconds) ELECTRIC POWER SYSTEMS PAGE7 MARCH 2001 tADLEY LAKE PMC/CHUGACH ELECTRIC ASSOC N, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM e Determination of oscillations by looking at the deflector position transducers, and noting three sequential changes in direction of the deflector motion over a four second period. The detection of an oscillation by the local control system will be annunciated to dispatch via the RTU. e Measurement of deflector and needle position, and the mathematical determination of if the deflector is in the stream. The detection of the deflector in the stream will be annunciated to dispatch. e Reduction in the needle openings if the deflectors are determined to be in the stream. The controlled reduction of needle openings will be annunciated to dispatch. e Tripping of the units if “large” oscillations occur for greater than 10-15 seconds. The implementation of the RAS as described above keeps the dispatcher informed of events and statuses at the plant, but does not require the dispatcher to intervene in order for the system to perform control. 5 Proposed Remedial Action System Implementation The Bradley RAS team proposes to implement the RAS design criteria as follows: 5.1. Local Processing The local control will consist of a GE 90-30 PLC system with the following inputs and outputs: Inputs e Bradley Unit 1 MW e Bradley Unit 2 MW e Deflector position e Needle position e Override control system (Chugach SCADA) e Vibration Detected Outputs e Unit 1 Power > 30 MW e Unit 2 Power > 30 MW e Unit 1 Deflector in Stream ELECTRIC POWER SYSTEMS PAGE 6 MARCH 2001 XADLEY LAKE PMC/CHUGACH ELECTRIC ASSOC dN, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM When the RAS determines that the deflectors have entered the stream, the system dispatcher will be notified via the Chugach SCADA system, that he is operating the plant in a mode where oscillations are possible. 3.3 Begin aggressive control to remove the deflectors from the stream at Bradley When the deflectors are determined to be in the stream at Bradley, and the dispatcher has been notified, the local RAS system will then begin to aggressively close the needles, effectively removing the deflectors from the stream. If the units are in steady state operation, the system will see no appreciable reduction in real electrical power from the Bradley Plant. 3.4 Provide aggressive setpoint control when oscillations are detected When oscillations are detected at Bradley, aggressive control should be implemented at Bradley in an attempt to dampen the oscillations. The local RAS will annunciate to SCADA that local control action is being taken, and the needle openings will be aggressively reduced. This will result in a reduction of mechanical input power to the turbine, thus reducing it’s ability to constructively sustain or exaggerate the oscillations. The aggressive reduction in the mechanical input power of the machines could result in some loadshedding. 3.5 Trip Bradley units if oscillations continue In the case where the local RAS control fails to arrest the oscillation of the Bradley units after 10-15 seconds, and the magnitude of the oscillation are determined to be sufficient to cause possible damage to the units (>£30 MW), the Bradley units should be tripped so as to avoid additional, and possibly increasing, forces on the shafts. The time to trip and magnitude of the oscillations are not analytically derived, but based on the utilities current experience with prior Bradley oscillations. The tripping of the Bradley units will likely result in loadshed throughout the interconnected system. 4 Proposed Remedial Action System Conceptual Design Bradley oscillations have been observed to have a period in the 600 mS range. This period of oscillation requires the processing of plant data onsite in order to avoid aliased data. A local control/processing system will be required onsite to perform the following functions: ¢ Measurement of machine real power output, and the detection of oscillations (in part) by observation of the change of direction of power from the units. This will detect both plant-system oscillations, as well as unit-unit oscillations. The detection of an oscillation by the local control system will be annunciated to dispatch via the RTU. ELECTRIC POWER SYSTEMS PAGE5 MARCH 2001 ADLEY LAKE PMC/CHUGACH ELECTRIC ASSOC N, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM should not rely on the dispatchers for intervention during or just prior to, an oscillatory event. 3 Discussion of Remedial Action System The RAS at Bradley will be designed to perform annunciation and control functions so as to alarm dispatch personnel when the plant is operating in a potentially critical operating range. Should a deflector be in the stream, the RAS will exert control in an attempt to minimize the likelihood of an oscillation occurring. If an actual oscillation is detected, the RAS will exert control to dampen the oscillations. Specifically, the Bradley RAS will be constructed to: e Annunciate when either of the units are above a MW level that in the past has exhibited oscillatory behavior. e Annunciate when the deflectors are in the water stream at Bradley. e Ifthe deflectors are determined to be in the stream, begin aggressive control of the needles to reduce the water stream such that the deflectors effectively come out of the stream. e If oscillations are detected at Bradley, provide aggressive setpoint control to reduce the needle openings at Bradley unit, in order to dampen or minimize the oscillations at Bradley. e If the oscillations continue, trip the Bradley Lake units offline to minimize their exposure to the potentially damaging oscillations. The Bradley RAS can be disabled from dispatch by a “poke point” on the Bradley Lake plant display. This will allow the system dispatcher to disable the RAS system, should it misoperate, or if unforeseen system conditions require it’s temporary deactivation. 3.1 Annunciate when either of the Bradley units are above a given MW output The Bradley oscillations are generally observed when the machines are above 30 MW, while in six needle operation. The local Bradley RAS system will annunciate to dispatch when either of the units are operating above 30 MW. No specific dispatcher action is required, other than to note that the units are operating in a region where oscillations are possible. 3.2 Annunciate when the deflectors are in the stream at Bradley Both the deflector and needle positions have transducers installed. Given the position indications from the deflector and needle transducers, it can be mathematically determined when the deflectors enter the water stream. ELECTRIC POWER SYSTEMS PAGE 4 MARCH 2001 RADLEY LAKE PMC/CHUGACH ELECTRIC ASSOC DN, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM 1 Background and Scope Since the commissioning of the Bradley Lake units, large-scale oscillations have been observed. While observed and recorded on the power system, these oscillations were not reproducible in or anticipated by any of the system studies performed by the Bradley design consultants. In 1997-98, in a cooperative effort between the Bradley owners and Electric Power Systems, Inc. (“EPS”), a computer model was developed whereby the oscillations could be produced and characterized in simulation. Subsequent to the system studies with the “new” model, the Bradley plant was instrumented and testing done on the units to further understand the oscillations and the causes. Oscillations observed previously and predicted in simulation were successfully induced in the online Bradley testing. One of the long-term solutions to the Bradley oscillations involves improvements to the Bradley governor system. The task of defining and implementing a new governor algorithm is currently under study by the utilities. In the interim, a remedial action scheme (“RAS”) is required to (1) alert the system dispatchers when the plant is operating in an area where it may be susceptible to oscillations, (2) initiate plant control in order to dampen or minimize the length and magnitude of the oscillations, and (3) should the oscillations continue, trip the Bradley units in order to minimize their exposure to potentially damaging forces to the machines. Chugach, under the direction of the Bradley Lake Project Management Committee (“BPMC’) and the Bradley Lake Operations and Dispatch Subcommittee (“O&D”), has assembled a team to undertake the definition and implementation of the RAS. 2 Description of Problem The units at Bradley Lake are subject to potentially severe oscillations for the following conditions: 1. The oscillations are observed when the deflectors are in the water stream. 2. Operation of any unit over approximately 30 MW output. The 30 MW criteria is based on observed behavior of the plant, and not on any analytical investigation. 3. The oscillations are observed to start primarily when there is an overfrequency event on the system. This causes the deflectors to cut into the stream, thus satisfying the requirement (1) above. The risk of damage to the units is not defined at this time, but it is anticipated that there is some potential for damage, give the large oscillations that have been observed. It was also noted in the RAS project scoping meetings that the RAS system needs to annunciate to dispatch personnel the status of the plant with regard to remedial action, but ELECTRIC POWER SYSTEMS PAGE 3 MARCH 2001 RADLEY LAKE PMC/CHUGACH ELECTRIC ASSOC DN, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM TABLE OF CONTENTS Mi BackQroundiand SCOPC cstccceccccececeesorcrescocsscctbusesccessotoresnsesesavtcasessetec nce scsanesesseotereteravertserore 3 2 Description of Problem... obhddtnateosececoantiveneoseen en 3 Discussion of Remedial Action System.......cccccscssssesssseeessseesessceseeseserseeecsseecetseseeeceneesess 4 3.1 Annunciate when either of the Bradley units are above a given MW output ..............:::ccccceeeeeees 4 3.2. Annunciate when the deflectors are in the stream at Bradley ................cccccssseeeeeeeeeeeeeeeenneeeeeees 4 3.3 Begin aggressive control to remove the deflectors from the stream at Bradley ..............:.ccc0ce 5 3.4. Provide aggressive setpoint control when oscillations are detected .............:ccccssseceessseeeseeeeees 5 3.5>— irip Bradley Units if, oscillations Continue:e:.<..:<.<.-.-cecev-sersees--stcee<vvsvccsgccrsccsucesacescsoceuucseetsevss 5 4 Proposed Remedial Action System Conceptual DeSigt..........:::sssssesessseeesesseeseseeseeseees 5 5 Proposed Remedial Action System Implementation... aucaccnossavcussscaeses 6 5.1 DE IN ia vepettrenrnennesnsyenceeryrase ovinretoneoge lar sib idninaehiatinsinnnntinevansbniaiaenDnabunnneds 6 6 Potential Negative Effects of the RAS... easdsuscasasnscanecaatsesettenssetaceuscstanscesestesen Seccseil] 6.1 Reduce Bradley Unit Neeale positions !--<.2<:stecravacssscescecaseeascstes cece snnsecsacctstacdececetecscesccetecdese L 6-2). Tap Bradley Lake! Unitet.-..41.2....c20..0-ssessscocstsaeoseussgeoseres ghas slonser ave iussensascccssaaceses seameePerstty seas Ti 7 Preliminary Schedule and Budgetary Cost Estimate...........s:sssssssesssssssseseseseeestsneneeeecesers 8 ELECTRIC POWER SYSTEMS PAGE 2 MARCH 2001 OX @lectric Power Systems YeEPS Consulting Engineers re P SYSTEMS CN Bradley Lake O&D Bradley Lake Remedial Action Scheme March, 2001 AUG-22-@01 21:38 FROM:ENGINEERING/POWER PRODUCT ID: 19072353305 PAGE 2/2 ASCG Inspection, Inc of Anchorage was hired to conduit a liquid penetrant inspection of Unit #1 and Unit #2 runners, Their technician arrived at Bradley on April 14, 2001 and began testing. A crack was found on Unit #2 runner at approximately noon on Sunday April 15". At this time, it was decided to also test the spare runner. A small crack was found on the spare runner during the evening of April 16". The State was notified on April 16" of the crack found on Unit #2 runner, The O&D committee was also notified shortly thereafter. A Fuji engineer, who was on site for unrelated work, suggested the small crack be buffed and retested, The runner was buffed. ASCG came back and retested the runner on April 19". The Fuji engineer cleared the spare runner for use once this work was done. Work to drop the runner began on Apri] 22"4 and continued for three, 10 hour, days. The work crew consisted of four HEA employees and the Fuji engineer. The spare runner was completely installed by May 24". This effort required four, 10 hour, days with a crew of four HEA employees plus the Fuji engineer. Alaska Testing Institute was contracted to determine the depth of the crack. Their technician, using ultrasound, estimated the depth of the crack at over 13 mm. This work was done on May 24". Currently, the State is identifying a source to craft the repair specifications. The following are included as part of this report. 1, Fuji’s Recommended Repair Procedure 2. Runner Photos (on CD) 3. Bucket sketches from ASCG Inspection (Bucket #10, Unit #2 show the crack) There were no public comments. 5. A MEN There were no agenda comments. 6. NEW BUSINESS 6A. Bradley Lake Turbine Repair Report — Sieczkowski Mr. Sieczkowski asked Bob Zaharsky to discuss this issue (report attached). 6B. i R i i - Mr. Hickey stated that the O&D Committee has devised a remedial action scheme that will minimize the possibility of damage to the units from oscillations. Discussion on technical aspects of the remedial action plan followed. At the O&D meeting this was discussed in more detail, and Stan has a recommendation from that committee to approve the implementation of the remedial action scheme (attached). MOTION: The Bradley Operation and Dispatch Committee recommends approval to proceed to design, install, and implement the remedial action system for a cost not to exceed $40,000.00. Mr. Story moved, seconded by Mr. Dale. A roll call vote was taken, and the motion pass unanimously. Te COMMITTEE COMMENTS A. Next Meeting Date — Bjornstad Next meeting date will be Thursday, June 21, 2001 at 10:00 a.m., via teleconference. 8. ADJOURNMENT There being no objection and no further business of the Committee, the meeting adjourned at 11:00 a.m. Page 2 of 2 BRADLEY LAKE PROJECT MANAGEMENT COMMITTEE MEETING MINUTES TELE FERENCE Via Electronic Media @ AIDEA 813 W. Northern Lights Boulevard Anchorage, Alaska Friday, May 11, 2001 — 10:00 a.m. 1. CALL TO ORDER Chairman Eugene Bjornstad called the meeting of the Bradley Lake Hydroelectric Project Management Committee to order at 10:00 a.m. on Friday, May 11, 2001, from the Alaska Industrial Development and Export Authority's Board Room, Anchorage, Alaska, to conduct the business of the Committee per the agenda and public notice. 2. ROLL CALL Roll was called by Shauna Dean. The following members were present: Gene Bjornstad Chugach Electric Association Don Zoerb Matanuska Electric Association (teleconference) Norm Story Homer Electric Association (teleconference) Henry Dale Golden Valley Electric Association (teleconference) Stan Sieczkowski Alaska Energy Authority Michael Scott Anchorage Municipal Light & Power (teleconference) 3. PUBLIC ROLL CALL Shauna Dean, Alaska Energy Authority Brian Hickey, Chugach Electric Association John Cooley, Chugach Electric Association (teleconference) Lee Thibert, Chugach Electric Association (teleconference) Brad Evans, Chugach Electric Association (teleconference) Hank Nikkels, Anchorage Municipal Light & Power (teleconference) Don Stead, Homer Electric Association (teleconference) Bob Zaharsky, Bradley Lake (teleconference) Larry Hittle, AterWynne, LLP (teleconference) 4. PUBLIC COMMENT y BRADLEY LAKE PMC/CHUGACH ELECTRIC / CIATION, INC. BRADLEY LAKE REMEDIAL ACTION 51 oTEM will be required to expire prior to tripping the first unit. The second unit will be tripped 5 seconds after the first unit, if the oscillations have not decreased sufficiently (peak to peak oscillations of less than 30 MW). 7 Preliminary Schedule and Budgetary Cost Estimate The design phase of the RAS project, assuming a notice to proceed and an approved design by 5/1/01, could be completed by 5/30/01. Based on plant personnel availability, it is anticipated that the installation could then commence on 6/1/01 and be completed by 6/8/01. Testing could then commence and be completed by 6/15/01, assuming plant scheduling could be arranged. The budgetary estimate for the Bradley RAS is $32,200." ‘ This includes the RAS hardware ($5000), programming, and markups of plant drawings ($15,000). Installation cost is estimated to be $ 3,000 (3 man-days, ten hours, $100/hour loaded). Estimated testing cost (personnel only, no power production costs included) is $ 8,000 (three test engineers, plus one plant personnel, two days, ten hours per day, $100/hour loaded). Estimated direct expenses for testing and installation is $1,200 (2 RT aircraft for testing/installation @ $200/RT and 8 days subsistence @ $50/day — HEA provided housing). ELECTRIC POWER SYSTEMS PAGE 8 MARCH 2001 BRADLEY LAKE PMC/CHUGACH ELECTRIC CIATION, INC. BRADLEY LAKE REMEDIAL ACTION o1 oTEM e Unit 2 Deflector in Stream e Unit 1 Oscillation Detected e Unit 2 Oscillation Detected e Unit 1 reduce needle opening e Unit 2 reduce needle opening e Unit 1 Trip e Unit 2 Trip Responsibilities: EPS will design and implement the Bradley RAS, with assistance from Chugach for specification of the “deflectors in stream” calculation. Plant personnel will perform the installation of the system at the plant, and the interface of the system to local and SCADA annunciation. 6 Potential Negative Effects of the RAS The Bradley RAS is designed to operate independently of dispatcher intervention, and thus has predictable results. The potential “negative” effects of implementing the system as described are attributable only to the scenarios where control would be exerted. 6.1 Reduce Bradley Unit Needle positions If the RAS detects the deflector is in the stream, it will attempt to reduce the needle openings to the point that the deflectors are no longer in the stream. For the envisioned application, no significant real power output reduction should occur. The only effect would be to reduce the needle openings so that the deflectors are no longer in the stream. The control system will have verification in the control loop to limit any real power reduction due to this mode of remedial action. 6.2 Trip Bradley Lake units If the oscillations are severe, and the reduction of the Bradley needle positions fails to arrest the oscillations, then the RAS will sequentially trip the Bradley units. One unit will be tripped first, and time allowed to determine if the oscillations are diminished or arrested. If the oscillations do not cease, the second Bradley unit will be tripped so as to minimize damage to the units. If one or both units trip, and, depending on system configuration and spinning reserve, loadshedding may occur throughout, or in a single area of the interconnected system. The tripping logic will only be armed after (1) the “deflector in stream” alarm condition is detected, and (2) oscillations have been detected, either in the real power output or in the deflector “change in direction” calculation. After arming the trip, a timer (10-15 seconds) ! ELECTRIC POWER SYSTEMS PAGE7 MARCH 2001 BRADLEY LAKE PMC/CHUGACH ELECTRIC ICIATION, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM e Determination of oscillations by looking at the deflector position transducers, and noting three sequential changes in direction of the deflector motion over a four second period. The detection of an oscillation by the local control system will be annunciated to dispatch via the RTU. e Measurement of deflector and needle position, and the mathematical determination of if the deflector is in the stream. The detection of the deflector in the stream will be annunciated to dispatch. e Reduction in the needle openings if the deflectors are determined to be in the stream. The controlled reduction of needle openings will be annunciated to dispatch. e Tripping of the units if “large” oscillations occur for greater than 10-15 seconds. The implementation of the RAS as described above keeps the dispatcher informed of events and statuses at the plant, but does not require the dispatcher to intervene in order for the system to perform control. 5 Proposed Remedial Action System Implementation The Bradley RAS team proposes to implement the RAS design criteria as follows: 5.1 Local Processing The local control will consist of a GE 90-30 PLC system with the following inputs and outputs: Inputs e Bradley Unit 1 MW e Bradley Unit 2 MW e Deflector position e Needle position e Override control system (Chugach SCADA) e Vibration Detected Outputs e Unit 1 Power > 30 MW e Unit 2 Power > 30 MW e Unit 1 Deflector in Stream ELECTRIC POWER SYSTEMS PAGE6 MARCH 2001 BRADLEY LAKE PMC/CHUGACH ELECTRIC / CIATION, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM When the RAS determines that the deflectors have entered the stream, the system dispatcher will be notified via the Chugach SCADA system, that he is operating the plant in a mode where oscillations are possible. 3.3 Begin aggressive control to remove the deflectors from the stream at Bradley When the deflectors are determined to be in the stream at Bradley, and the dispatcher has been notified, the local RAS system will then begin to aggressively close the needles, effectively removing the deflectors from the stream. If the units are in steady state operation, the system will see no appreciable reduction in real electrical power from the Bradley Plant. 3.4) Provide aggressive setpoint control when oscillations are detected When oscillations are detected at Bradley, aggressive control should be implemented at Bradley in an attempt to dampen the oscillations. The local RAS will annunciate to SCADA that local contro! action is being taken, and the needle openings will be aggressively reduced. This will result in a reduction of mechanical input power to the turbine, thus reducing it’s ability to constructively sustain or exaggerate the oscillations. The aggressive reduction in the mechanical input power of the machines could result in some loadshedding. 3.5 Trip Bradley units if oscillations continue In the case where the local RAS control fails to arrest the oscillation of the Bradley units after 10-15 seconds, and the magnitude of the oscillation are determined to be sufficient to cause possible damage to the units (>+30 MW), the Bradley units should be tripped so as to avoid additional, and possibly increasing, forces on the shafts. The time to trip and magnitude of the oscillations are not analytically derived, but based on the utilities current experience with prior Bradley oscillations. The tripping of the Bradley units will likely result in loadshed throughout the interconnected system. 4 Proposed Remedial Action System Conceptual Design Bradley oscillations have been observed to have a period in the 600 mS range. This period of oscillation requires the processing of plant data onsite in order to avoid aliased data. A local control/processing system will be required onsite to perform the following functions: i e Measurement of machine real power output, and the detection of oscillations (in part) by observation of the change of direction of power from the units. This will detect both plant-system oscillations, as well as unit-unit oscillations. The detection of an oscillation by the local control system will be annunciated to dispatch via the RTU. ELECTRIC POWER SYSTEMS PAGE 5 MARCH 2001 BRADLEY LAKE PMC/CHUGACH ELECTRIC CIATION, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM should not rely on the dispatchers for intervention during or just prior to, an oscillatory event. Ke tet em oust pate e coi] The RAS at Bradley will be designed to perform annunciation and control functions so as to alarm dispatch personnel when the plant is operating in a potentially critical operating range. Should a deflector be in the stream, the RAS will exert control in an attempt to minimize the likelihood of an oscillation occurring. If an actual oscillation is detected, the RAS will exert control to dampen the oscillations. Specifically, the Bradley RAS will be constructed to: e Annunciate when either of the units are above a MW level that in the past has exhibited oscillatory behavior. e Annunciate when the deflectors are in the water stream at Bradley. e Ifthe deflectors are determined to be in the stream, begin aggressive control of the needles to reduce the water stream such that the deflectors effectively come out of the stream. e If oscillations are detected at Bradley, provide aggressive setpoint control to reduce the needle openings at Bradley unit, in order to dampen or minimize the oscillations at Bradley. e If the oscillations continue, trip the Bradley Lake units offline to minimize their exposure to the potentially damaging oscillations. The Bradley RAS can be disabled from dispatch by a “poke point” on the Bradley Lake plant display. This will allow the system dispatcher to disable the RAS system, should it misoperate, or if unforeseen system conditions require it’s temporary deactivation. 3.4 Annunciate when either of the Bradley units are above a given MW output The Bradley oscillations are generally observed when the machines are above 30 MW, while in six needle operation. The local Bradley RAS system will annunciate to dispatch when either of the units are operating above 30 MW. No specifi ic dispatcher action is required, other than to note that the units are operating in a region where oscillations are possible. 3.2 Annunciate when the deflectors are in the stream at Bradley Both the deflector and needle positions have transducers installed. Given the position indications from the deflector and needle transducers, it can be mathematically determined when the deflectors enter the water stream. fi ELECTRIC POWER SYSTEMS PAGE 4 MARCH 2001 BRADLEY LAKE PMC/CHUGACH ELECTRIC. CIATION, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM 1 Background and Scope Since the commissioning of the Bradley Lake units, large-scale oscillations have been observed. While observed and recorded on the power system, these oscillations were not reproducible in or anticipated by any of the system studies performed by the Bradley design consultants. In 1997-98, in a cooperative effort between the Bradley owners and Electric Power Systems, Inc. (“EPS”), a computer model was developed whereby the oscillations could be produced and characterized in simulation. Subsequent to the system studies with the “new” model, the Bradley plant was instrumented and testing done on the units to further understand the oscillations and the causes. Oscillations observed previously and predicted in simulation were successfully induced in the online Bradley testing. One of the long-term solutions to the Bradley oscillations involves improvements to the Bradley governor system. The task of defining and implementing a new governor algorithm is currently under study by the utilities. In the interim, a remedial action scheme (“RAS”) is required to (1) alert the system dispatchers when the plant is operating in an area where it may be susceptible to oscillations, (2) initiate plant control in order to dampen or minimize the length and magnitude of the oscillations, and (3) should the oscillations continue, trip the Bradley units in order to minimize their exposure to potentially damaging forces to the machines. Chugach, under the direction of the Bradley Lake Project Management Committee (“BPMC”) and the Bradley Lake Operations and Dispatch Subcommittee (“O&D”), has assembled a team to undertake the definition and implementation of the RAS. 2 Description of Problem The units at Bradley Lake are subject to potentially severe oscillations for the following conditions: 1. The oscillations are observed when the deflectors are in the water stream. 2. Operation of any unit over approximately 30 MW output. The 30 MW criteria is based on observed behavior of the plant, and not on any analytical investigation. 3. The oscillations are observed to start primarily when there is an overfrequency event on the system. This causes the deflectors to cut into the stream, thus satisfying the requirement (1) above. The risk of damage to the units is not defined at this time, but it is anticipated that there is some potential for damage, give the large oscillations that have been observed. It was also noted in the RAS project scoping meetings that the RAS system needs to annunciate to dispatch personnel the status of the plant with regard to remedial action, but ELECTRIC POWER SYSTEMS PAGE 3 MARCH 2001 BRADLEY LAKE PMC/CHUGACH ELECTRIC, CIATION, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM TABLE OF CONTENTS 1 Background and Scope .......ccscscsesssssssssssessessessesecsssesesssesesesesecsreeeesesseaesececasescesscasseseueseenaees 3 2 Description Of Problem........csssssscsssesesssseeeseesesnensssseessssnsssssssssessesseceusessnecesenseneuasseneesseesees 3 3 Discussion of Remedial Action System... 3.1 Annunciate when either of the Bradley units are above a given MW output... eee 4 3.2. Annunciate when the deflectors are in the stream at Bradley ............ccccceceeesesseetteeeeeeeeeeeeeeeeeee 4 3.3. Begin aggressive control to remove the deflectors from the stream at Bradley .............:ccceeee 5 3.4 Provide aggressive setpoint control when oscillations are detected ..............:cccccessseeeeeseeeeeeee 5 3.5. Trip Bradley units if oscillations continue. 4 Proposed Remedial Action System Conceptual DeSIQN...........cssseseseeseeeseeeseeeneeeeee 5 5 Proposed Remedial Action System Implementation 5.1 LOCall PrOCESSIING sscccccssssasssscssesvecsessonssvinsassenenersnaesssesnovespsenesuesoseussensensssveseveaseuessiasenssoasionss 6 6 Potential Negative Effects of the RAS.......ccssssssessessssssssssessssesssscessssnensessensessensnsnensnseeneess 7 6.1 Reduce Bradley Unit Needle positions ...........cccccseecceessecessseeeesseeeseseecesseeesesaeesessaseeeesseeenees 7 G2 “Trip Bradley Lake UttS vices: covssecavecsenscaseoanenatsouseoneesassvaresovesuavsoanesvanemonssesavesseaenewoutesuvsseees 7 7 Preliminary Schedule and Budgetary Cost Estimate..........sssesssssesssseessessssseeesesesenseeeeeees 8 ELECTRIC POWER SYSTEMS PAGE 2 MARCH 2001 s, Pllectric Power S ystems inc. Consulting Engineers Bradley Lake O&D Bradley Lake Remedial Action Scheme March, 2001 ALASKA INDUSTRIAL DEVELOPMENT * AND EXPORT AUTHORITY a ALASKA @@E =ENERGY AUTHORITY 813 WEST NORTHERN LIGHTS BLVD. * ANCHORAGE, ALASKA 99503 ¢ 907/269-3000 ¢ FAX 907/269-3044 TOLL FREE (ALASKA ONLY) 888 / 300-8534 BRADLEY LAKE PROJECT MANAGEMENT COMMITTEE SPECIAL MEETING TELECONFERENCE AGENDA Friday, May 11, 2001 — 10:00 a.m. (Via electronic media at AIDEA/AEA — 813 W. Northern Lights Boulevard) 4. CALL TO ORDER ° Bjornstad 2. ROLL CALL (for Committee members) ~~ 3. PUBLIC ROLL CALL (for all others present) 1~ 4. PUBLIC COMMENT «~ 5. AGENDA COMMENTS }~ 6. NEW BUSINESS .— A. Bradley Lake Turbine Repair Report a Sieczkowski B. O&D Recommendation to Approve Remedial Action Scheme 4 Hickey 7. COMMITTEE COMMENTS ~~ A. Next Meeting Date — Bjornstad 8. ADJOURNMENT Agenda Item No. CITY OF SEWARD MATANUSKA ELEC ASSOC CHUGACH ELEC ASSOC HOMER ELEC ASSOC BRADLEY PMC VOTING DATE: —///0/ 01% a 14% [o7T T | 12% a es 30% [-T_[_ TT, -T_] 7 GOLDEN VAL ELEC ASSOC. =17% [~JT_ |__| ‘ Pie MUNI LIGHT & POWER 26% [i= 4 bo | ALASKA ENERGY AUTHORITY ol rp | A=4+ OVER 51% B=AEA CONCUR With A C = UNANIMOUS D = MAJORITY VOTING METHOD A: 3) Establishment of FY estimated annual 11) Requiring four yeas with 51% of utilities, with no AEA vote: 1) Procedures for scheduling, production and dispatch of project power. 2) Establishment of procedures for use of each purchaser's water allocation (AEA assent required for license requirements). 3) Selection among alternative methods that do not involve AEA for funding required project work. VOTING METHOD B: Requiring 4 yeas with 51% of utilities and AEA concurrence: 1) Arranging operation and maintenance of project. 2) Adoption of budget of annual project costs. VOTE(93Q3/BC5272) payment obligation and schedule of each purchaser. 4) Determination of annual project costs after each FY. 5) Evaluation of necessity for and scheduling of required project work. 6) Determination of appropriate amount of insurance. 7) Adoption of additional minimum funding amounts for renewal and contingency reserve fund above that required by bond resolution. 8) Selection among alternate methods that involve AEA for funding required project work. 9) Adoption or amendment of procedural committee rules (except dispute resolution). 10) Adoption of project maintenance schedules. 12) 13) 14) 15) Determination of rules, procedures and accounts necessary to manage project when no bonds outstanding. Evaluation and approval of optional project work and compensation for such work. Application of insurance claims proceeds not governed by bond resolution. Approval of procedures and any individual utility agreements relating to electric power reserves for project. Approval of consultants. VOTING METHOD C: Unanimous vote by all (including AEA) VOTING METHOD D: Majority vote (including AEA) Election of Officers Bradley Lake PROJECT MANAGEMENT COMMITTEE MEETING Wh ) Lil ag L 200/ i (Date) ait Cleconference. C JI8 b/. Werther At: (Location) % PLEASE SIGN IN No. NAME REPRESENTING 1 Causa (Léa NEY 2 | Gere Zworasfek 4a pache 1S ee 4 Ben thevers CUUGACY 92Q2\IT9884 NR Ra ay ” tow 3000 SUMMER TIRES $29/ea. $8.50 Changeover 563-4398 Tires & Wheels: Ford & Dodge, $10 & fulls size Chevy, Mags & standard. Sz 225/70/R19.5. 561-3090 TOYOTA Parts, Service, Sell, Buy. PU, 4Runner, Cars. 338-0679 / 223-2939 “96 Toyota Tacoma V-6, 4x4, runs/drives, body dam- age, 36K mi., $5000 240-7481 USED TIRES & WHEELS Buy, Sell AK Tire Service, 344-6288 WANTED TO BUY AT transmission for ‘90 Geo Metro. 776-3638 ELIT Public Notices 900 ALASKA ENERGY AUTHORITY/ALASKA INDUSTRIAL DEVELOPMENT AND EXPORT AUTHORITY Public Notice - Special Meeting Bradley Lake Project Management Committee Notice is hereby given that the Bradley Lake Project Management Committee will hold a SPECIAL MEETING Ence teaard ng the Bradley Lake turbine re- pair report conducted by electronic media at the following location: Alaska Industrial Devel- opment and Export Au- thority, 813 W. Northern Lights Boulevard, An- J chorage, Alaska. This meeting will commence at 10:00 a.m., Friday, May 11, 2001. For addi- tional information, con- tact Eugene Biornstad, Chairman, Chugach Elec- tric Association, 5601 Minnesota Drive, An- chorage, Alaska 99503. The State of Alaska (AIDEA), complies with Title | of the Americans with Disabilities Act of 1990. Disabled persons requiring special modifi- cations to participate should contact AIDEA staff at (907) 269-3000 to make special arrange- ments. Alaska Energy Authority, Project Management Committee Pub.: May 8, 2001 AMENDED Notice of Public Hearing STATE OF ALASKA Alaska Oil and Gas Conservation Committee Re: South Ninilchik Drill- ing Pad, Albright #1 Well Unocal Lease #1030649 Union Oil Company of California by letter dated April 17, 2001 has re- quested an order allow- ing a spacing exception in accordance with 20 AAC 25.055(a)(2) for an ex- ploratory gas well to be drilled within 1500 feet of the property line. The vertical well will be drilled from a surface lo- cation 2277’ from the west line, 550’ from the north line, Section 24, TIS, R14W, Seward Meridian. The Commission has set a public hearing on June 28, 2001 at 9:00 am at the Alaska Oil and Gas Con- servation Commission at 333 West 7th Avenue, Suite 100, Anchorage, Alaska 99501. In addition, Ms. Kathleen Kuna U.S. Army Corps of Engineers, CO-R Post Office Box 898, Anchorage, AK 99506-C Email Kingcove,com- Ments@poa02. usace.army amil Phone (907) 753-2712 in Alaska 1-800-478-2712 Fax 907-753-5567 US Army Corps Of Engineers Pub.: May 8, 9, 10, 2001 NOTICE OF PUBLIC MEETINGS ALASKA OIL & GAS CONSERVATION COMMISSION Under the Open Meet- ings Act (AS 44,62.310), notice is given that the Alaska Oil and Gas con- servation Commission will meet in public meet- ings on June 6, 13, 20 & 27; July 4, 11, 18 & 25; August 1, 8, 15, 22 and 29, 2001 at 9:00 AM in the Commission’s Confer- ence Room in Anchorage, Alaska, at the address be- low. The Agenda may in- clude: general commis- sion business including personnel; regulation matters; policy and bud- get matters; oil and gas conservation issues; leg- islative issues; and agenda items deferred from prior meetings. The public is invited to attend the meetings, however, commission business meetings do not provide for public testi- mony. A finalized agenda will be prepared and posted at the Commis- sion’s office by noon on the workday before each of the scheduled meet- ings. Circumstances may cause items to be either added or deleted from an agenda. If you have any questions about the agenda, please contact Jody Colombie at the Alaska Oi! and Gas Con- servation Commission, 333 W. 7th Avenue, Suite 100, Anchorage, Alaska 99501, (907) 791-1221. If you are a person with a disability who may need a special modifica- tion in order to comment or to attend the public hearing, please contact Jody Colombie at 793-1221 before June 18, 2001. /s/ Cammy Taylor Commissioner A0-02114017 Notice of Public Meeting State of Alaska Department of Health & Social Services Division of Public Health Alaska Tobacco Control Alliance, Steering Committee Meeting The Steering Committee of the Alaska Tobacco Control Alliance will hold a three day meeting be- ginning Wednesday, May 9, 2001, Noon to 5:00 PM, Thursday, May 10, 2001, 8:30 AM to 5:00 PM, and Friday, May 11, 2001, 8:30 AM to 3:00 PM, at the Best Western Lake Luci- ile Inn, Hallea Room, 1300 W. Lake Lucille Drive, Wasilla, AK. For further information contact Wayne Coolidge at (907) 465-8641. Individuals with disabili- ties who require accom- modations in order to at- tend the meeting need to call (907) 465-8641 or fax (907) 465-6861. +700 am 4 meeting is open to the sublic. If you would like nore information regard- ng this evaluation, please contact Chris L. Carson, Grants Administrator, Division of Family and Youth Services at 907-465-3469, Relay Alaska provides assisted com- munication services at the following numbers: from a TT Phone: 1-800- 770-8973; from a Voice Phone: 1-800-770-8255. Pub.: May 8, 2001 Rules & Regulations _905 NOTICE OF UTILITY CONTRACT FILING ACS of Anchorage, Inc. ("ACS-ANC") gives no- tice that it has filed an Amendment to its Inter- connection and Recipro- cal Compensation Agreement with ACS Wireless, Inc., (ACS-W) formerly MACtel, as tar- iff revision (TA 420-120) for approval by the Commission under the Telecommunications Act of 1996. In TA 420-120 ACS-ANC proposes to amend its In- terconnection and Recip- rocal Compensation Agreement with ACS-W. Under the agreement, the parties pay reciprocal compensation to each other at the rate of $0.022 per conversation minute chorage to otner toca- tions within the Anchor age area. The term of the Contract will be one (1) year with the option to renew an additional one (1) year period at the sole discretion of AHFC. All bids and modifico- tions must be received by AHFC by 2:00 p.m. on May 31, 2001 at 4300 Boni- face Parkway, Suite 180, Anchorage, Alaska. The bids will be opened and read aloud at 2:05 p.m. on May 31, 2001 at the loca- tion listed above. A walk through of one unit will take place on May 18, 2001 at 2:00 p.m. at the Chugach View Senior Housing Complex lo- cated at 1280 17th Avenue in Anchorage, Alaska. The bid documents will be available for pick up from the Procurement Office located at 4300 Boniface Parkway, Suite 180, Anchorage, Alaska, on May 8, 2001, (907) 330-8145 or 8146. Questions regarding this Invitation for Bid may be directed to Gloria Oun- more, Procurement Of- ficer at (907) 330-8141 or e-mail address: gdun- more@AHFC.state.ak.us. IMPORTANT NOTICE: If you received this solici- tation from the State's “Online Public Notice” web site, you must regis- ter with the Procure- ment Officer listed on this document to receive of use for terminating subsequent amendments. NOTICE TO BIDDERS NOTICE is hereby given that sealed Proposals will be received by: North Slope Borough CIPM Department Attn: Contract Administrator 251 Pisokak Street Barrow, AK 99723 Bids will be received until 1:30 p.m., local time, May 22, 2001, for the replacement of the fire alarm system at Barrow High School in Barrow, Alaska as described more completely in the Contract documents entitled Barrow High School Fire Alarm Replacement, dated April 23, 2001, CIP-06-172. The work includes demolition of the ex- isting fire alarm system panels, wiring, and de- vices, and installation of new panels, wiring, de- vices, and associated parts and equipment. Bids will be opened and publicly read aloud at 2:00 p.m. at the North Slope Borough Law Offices, 1264 Ag- vik Street, Barrow, Alaska 99723. Mailed proposals shall be addressed to the North Slope Borough, Department of CIPM, P.O. BOX 350, BARROW, ALASKA 99723. Proposals received after the time announced for the bid closing, which will be 1:30 p.m. unless otherwise specified, will not be consid- ered. Drawings and Specifications may be examined at the office of the ENGINEER: RSA Engineering, Inc., 2522 Arctic Blvd., Suite 200 Anchorage, Alaska 99503 after 2:00 P.M., April 27, 2001 and at the North Slope Borough Project Information Center: P.O. Box 1353, 1250 Agvik Street, Barrow, Alaska 99723. Cost of the Contract Documents is $50/set and the amount paid for the documents is non-re- fundable. Contract Documents will be sent by mail for an additional $15 per set. The Documents will also be available for review at the Plans Room in Fairbanks and Anchorage. Each proposal shall be accompanied by a certified or cashier’s check payable to the order of the North Slope Borough for a sum not less than five percent (5%) of the amount of the proposal, or ac- companied by a bid bond, in an amount not less than five percent (5%) of the amount of the pro- posal, of a corporate surety licensed to do business in the State of Alaska, conditioned that the bidder will pay the Borough, as liquidated damages, the amount specified in the bond, unless it enters into a contract in accordance with its proposal and fur- nishes the performance and payment bond with surety satisfactory to the Borough in an amount equal to one hundred percent (100%) of the con- tract price and insurance certificate within ten (10) days from the date on which it is notified that it is the successful bidder, its check (or bid bond) and the amount thereof shall be forfeited to the Borough. The Borough reserves the right to reiect any or all proposals and to waive irregularities or informali- ties in any of the proposals. Bids may be awarded in accordance with the Borough’s preference policy, a copy of which is available upon request. Each proposal shall be submitted only on the pre- scribed forms includes with the contract docu- ments. Pub.: April 27 - May 1, May 4 - 10, 2001 Arn. wuss all phases of website develc enhance the co tions outreach AFN. Write to pon, Communic rector at the listed above for the RFP. No calls please, May 18, 2001; $ Vendor: May 2¢ Pub.: May 8-17, STATE OF 4 DEPARTMI TRANSPORT PUBLIC FAC NOTICE OF FOR PROF RFP Title: Pr Concrete In Sampling an Term Agreem RFP / PSA No. Project No.: T Estimated Cos Proposals Du May 22, 2001 Telephone: (90 TDD: (907) 265 Additional int available on selecting “C and Procur www,dot.state Pub.: 5/8, 5/11, Bids will be May 22, 20¢ Alak Schoo! more comp titled Wain CIP# 06-171 ing roofing, materials ¢ the building tic spaces, will be oper at the Nort vik Street, shall be ac Departmer ALASKA # announced p.m. unless ered. Drawings ¢ the office ¢ W. Benson ter 2:00 P.i Borough F 1353, 1250 copy of the fice of the formation ments wil additional ments is m Document: A pre-bid Slope Bo! Street, Su p.m. local ders ares ference. Each pror or cashie North Slo percent (£ companie than five posal, of ¢ in the Sta will pay t amount si a contrac nishes th surety so equal to tract pri (10) days it is thes and the ¢ Borough. The Boro proposal: ties in or in accor policy, a Each prc scribed ments. Pub.: AP -_ 851 | ‘94 Nissan Sentra, SE2DR, CD, 5 spd., alloy wheels, white. $2000 277-4001 Imports ‘91 Acura Integra LS 2door, $4500, #P2713A 561-7664 JAA "BMW 1997 528, 5sp, 36k mi, mint cond, new tires, $27,995 564-5028 / 240-8099 Daewoo's, New Will sell at ‘or Never titled Dealer net invoice. Call 561-7664 JAA 1997 Honda Accord, 2dr AT, all options, red, (bi-bk SIS.6K. Ask $13,500 346-6226 "90 4dr 93K, ‘98 Honda Accord Ex 4dr, AT, Snrf, PW, PL, Alloys. Only $14,995 #216615 561-1750 Sspd, PW, PL, AC $4,995, #7653 561-1750 "90 Honda Accord LX 96kmi, 1 owner, excellent. _S42000bo 277: 6980727; 6980 88 Honda Accord 4dr, LX, clean $2500 RWB 561-6045 ‘86 Honda Civic 4DR, 5spd, xtra set of tires, Good Runner. $1,500. 349-8023 93 Honda Prelude SI, 5sp, 39k org mi, snrf, pwr loaded, $10,500 obo569 | “CALL CLASS TODAY! “00 Hyundai Accent 4dr, Auto, cass, low miles $7500 RWB 561-6045 "99 Mercedes Benz E320 4matic, all wheel drive, 4 door sedan, only 14,000 miles, save real big money on this like new M-B @ $43900 STK #0418AB M-B of Anch 277-3383 *00 Nissan Altima GXE less than 500 miles Auto $15700 561-7664 JAA #11079 “97 Nissan Altima GXE Auto, A/C, PW, pdl, $8995 $61-7664 JAA #P2702 95 Nissan Altima 4 door, GXE, Auto, $6800 Call 561-7664 JAA #P2640B ‘98 Nissan Altima GXE Auto $10995 Call 561-7664 JAA #P 1788 ‘98 Nissan Maxima GXE Auto, 4 door, $16995 561-7664 JAA #P1790 ‘94 Nissan Sentra 4 door, 79K, $4800 #11078Q 561-7664 JAA Nissan Sentra GXE ‘97. Sspd. AC, all pwr, 36K mi, $7,500 373-6544 ‘96 Saab 900 SE Turbo Auto, leather, sunroof low miles $12995 561-7664 JAA #110594 ‘97 Saab Turbo 9000 CSE AT, 40kmi, Ithr, loaded, exc cond $20Kobo 522-2524 ‘00 Subaru Forester AWD, Auto, PW, PDL, $16800 561-7664 JAA P2373 "98 Subaru Legacy Sedan AWD, Auto, Only 27K miles $15900/offer 561-7664 JAA #P27214 Must Sell! ’98 Toyota Co- rolla LE, 4dr, AT, oc, pwr very nice, 702-433-7190. “99 Toyota Camry LE CD Player, Loaded, Quality & Value 2 to choose from, $14,795 #8897, #8899 www.budgetsales.net Honda Accord Ex| new cnd. $5,500. 561- ae” “Honda TRX 300 E 4whir, hardly ridden, very fast. Imac cond, Must Sell! $3400 727-2485 PARK | & SELL 99 8x10 Trailer 95 Calista 24’ Classic 90 Nat’! 29 pass bus Ds! 85 School bus 85 Jamboree 26ft 561-PARK (7275) | Old Seward & Dowling www.alaskaparkandsell.com ‘96 Polaris 400L 6x6, w/5 ft. plow & wench. exc. cond $4,950 obo 222-5181 “99 Pursuit A class 2 5k miles Queen bed sleeps 4, Gen. AC, Basement model, awning, Fully loaded plus full Factory | warranty Call Truman ABC 227-1112 TV || “94 KW T800; 550 Cat, 18sp, 46rears, lockers, 4vmni-an motor. 270” WB. $s 20 694-7501/268-9744 1ospa, 46 rear, sleeper,” 300wb. 696-4004 / 440-7717 New 50 ton, 3 axle dble drop, self contained, 102 wd, 24’ load deck. 283-2776 96 Peterbilt 377, 435. Jake 9-Spd, 550,000 mi. & '96 48-102 Combo Step deck. 581-3880 ‘81 Pete, 400 Cum, 13 spd, 44 rears. $9,500 OBO. 562-5799 Professional Truck Driver CDL Training & Testing Call Center for Employment Education www.cee-ak.com 279-8451 or 1-800-478-4233 “97 Ranco belly dump 40/2 in good shape, $20,000 obo. 562-5799, 227-5799 ‘97 SEADOO XP $4800 “98 YAM XL 1200 $5500 Shuttlecraft $4900 | 727-8336 or 357-1388 | | 96 SEADOO SPI $2700 | | WANTED! | RECREATIONAL VEHICLES! We will take your Recre- ational Vehicle inTrade for New & Used Vehicles | Contact Artie Niemi at | Cal Worthington Ford 242-0322. lRv Rental 862 | AK Affordable RV's $125/day | free mi., non- smk, fully | equip, Class C. 333-5969 98 2988" Class c Fully Equipped, Sleeps 6+, May Special $125 /day. Please Cal! 348-8718 | 28 FT. Class C, free miles, 4 day min., fully equipped. | $125 + tax 333-7203 | 22° Class C $125/day, 30’ | Class A $200/day, both fully furnished. 337-8881 Coming Up? Give ‘em our 1-800-421-7456 or 279-2000 Xe Ta eT lass ‘97 30’ Georgie Boy | Class C, non smoking, 4 day min. $150/day 563-1982 |” 27 Gulfstream Uliro, __| _ fully loaded, class C, Spring Special! 250-1772 Shasta 29, sips 8, 5/5-5/25 $125/day. 8/1-9/30: $150/day | Free mi. 244-5186/868-4073 31’ Winnebago, fully self | contained, seasonal rates: contact 348-8528 | Classics 870 eee entice ‘85 Corvette Convertible Loaded, call for details. | $10,500 obo. | 348-8784 / 360-5542 | "89 Corvette, bik, 2t-tops, garaged, no winter driving, 37k mi., xint | | cond. $14,900, 745-4992 | ‘80 Corvette, Bik TTop, new eng, warr, all paperwork avail, less than 100mi $9,500 firm, 929-3469 ‘oo Mustangs 4Sale "66 Coupe, 289/4spd, ‘66 Convertible, 6cyV/AT exc.cond, 745-6841 * Rebuilt Generators * All sizes, Full service machine shop. 688-2525 40 ft Van on Wheel: wi/side door, good for mo bile storage $1800. 694-2535 | Wanted: 48° or 53’ FLAT, tandem, steel only, good to excellent cond. 373-6012 Utility | Trailers 885 A 5x8 heavy duty w/1Sin tires, (Ford) $500 obo. 337-2802 | Call us Today! 257-4444 | All Types, 8’-30'L, 5’-8.5’W | 3500#-20,000 GVW. 1050 W. Dimond, btwn A Arctic/ Mian. | Arctic Cat. Racing team 5th Wheel trailer, with tool box & ramp, heated, & lights can be seen at 7th & Gambell $7,500 OBO. 274-7071 | ‘01 28’ Carson Util trir, | 10,000G.V.W., dual axle, 8 wide, car ramp access $9300 obo. 907-235-3686 HAUL No. one r ARK in trailers y at ABC Sales R.V, SALES c 5550 Old Seward Hwy. (907) 561-1982 Many Trailers for Sale! More on the way! Call 258-0111 2000 Neal 18’ tilt bed tri. 2-5000# Axles 581-3880 veevewo-rmvesrment flexibility” via HB 156; return expectations, re- sponsible contractors; and prudent leverage. The public is invited to | attend and the agenda will provide an opportu. nity for public comment and participation Agenda times may vary and the Chair may reor der agenda items. The APFC complies with Title 11 of the Americans with Disabilities Act of 1990. Individuals with dis. abilities who may need | auxiliary aids, services, | or special modifications | ENCE should contact Sandra Firestack at 465-2078 or 465-4355 (TTY/TDD) three days prior to meeting Pub.: May 9, 2001 ALASKA ENERGY AUTHORITY/ALASKA INDUSTRIAL DEVELOPMENT AND EXPORT AUTHORITY Public Notice - Special Meeting Bradley Lake Project Management Committee Notice is hereby given that the Bradley Lake Proiect Management Committee will hold a ANEMOTage! AK Y¥I06-0 Email Kingcove.co Ments@poa02, usace.ar amil Phone (907) 753-2712 in Alaska 1-800-478-2712 Fax 907-753-5567 US Army Corps Ot Engineers | Pub.: May 8, 9, 10, 2001 | NOTICE OF | PUBLIC HEARING | The North Slope Borat Barrow Zoning Comn | sion will be conductin public hearing on June 2001 at 9:30AM at regular meeting in 1 Planning Departme Conference Room, 1é Takpuk Street, Barre Alaska The Barrow Zoni Commission will be cc | sidering a rezoning quest (RZ01-001) made Cornerstone Commun Church on VIC Land Barrow to rezone a % tion of the remnant Lot | USS 5253; and an un-st veyed portion of Sec T23N, R18W, U.M. Legal Descriptions SPECIAL MEETING| Un-subdivided portion VIA _TELECONFER-| Lot 5, USS 5253, located regarding the| Section 32, T23N, R18\ Bradley Lake turbine re-| Umiat Meridian, State Pair report and the O&D| Alaska, said parcel beir recommendation to ap-| more specifically d Prove remedial action| scribed as follows: B scheme. This meeting| ginning of the northwe will be conducted by elec- tronic media at the fol-| lowing location: Alaska industrial Development | and Export Authority, 813 New 18’ & 20’ heavy duty | Util. trirs, 16” radial tires, ramps etc. 283 6 New Util Trirs, Various Szs & 2-4-6 place snowmachine trirs. 696-6951 / 688-3908 | Parts a | Service 890 87 Plymouth Voyager van 58k mi, runs exc, passen ger side damaged, will part out. $1,000. 229-2201 “99 Mustang Cobra SVT parts. 318 Dodge engine, misc. ‘79 Dodge pick-up parts. 409 Chevy engine, lots of xtra parts. 223-2534 A-1 Subarus Wanted New & used Parts 562-3919 CAN DO SAME DAY Repair, Lt Truck & 4x4 Specialist, Visa/MC 561-3090 CASH FOR CARS Running or not! 344-8407 Engines: 300, 302, 351 Fords, 305 & Chevy. Rebuilt installed, $1,500. Other engines avail. VI/MC. 561-3090 W. Northern Lights Bou- levard, Anchorage, Alaska. This meeting will commence at 10:00 a.m., Friday, May 11, 2001. For additional information, contact Eugene Biorns tad, Chairman, Chugach Electric Association, 5601 Minnesota Drive, An- chorage, Alaska 99503 The State of Alaska| (AIDEA), complies with Title || of the Americans with Disabilities Act of 1990. Disabled persons requiring special modifi cations to participate should contact AIDEA staff at (907) 269-3000 to make special arrange- ments. Alaska Energy Authority, Project Management Committee Pub.: May 8, 9, 2001 Make your phone ring! Place an inexpensive ad in the ADN Classifieds and get results! 257-4444 All goods stored at Mid town Storage by Jane Dansby, Mario E Vaughn, Robert Johnson and Albert J. Wasillie | will be auctioned due to non payment of rent on| | Tuesday May 22 2001 at | 7:00 PM at North Pacific Auctioneers 1000 E 4th Ave Anchorage AK 99501 Pub. May 2, 9, 19, 2001 Department of Health and Social Services Division of Family and Youth Services PRE-PROPOSAL CONFERENCE: RFP 2001-0600-2149 DFYS Business Process Review, Technical Assistance with Optional Quality corner of Lot 1-A, Bloc 20, as shown on Plat 90 | in the Barrow Recordir | District, State of Alask« said point being the tru point of beginning thence $26°14 27"E, 260.( feet; thence S63°42'43"\ 140.00 feet; thence N26") 27"W 260.00 feet to a poir which lies on the sout right-of-way of Trans Street; thence N63°42'43 E 140.00 feet along th south right-of-way c Transit Street to the tru Point of beginning; sai point being the terminu of this legal description. | Currently, this area i zoned Reserve Distric and requesting rezonin to Mix Uses District t conform with existin mix uses to subdivide an match the existing zor ing district surroundin this area to develop th above mentioned prop erty. This request b Cornerstone Communit Church would permit th: building of a church ir accordance with Title 19 A recommendation wil be made by the Zonins Commission that will be forwarded to the Nort! Slope Borough Assembly for consideration Any persons wishing tc comment or present tes timony may do so at the public hearing, or by sending written com | ments by June 14, 2001 to Rex A. Okakok Sr Land Management Administrator North Slope Borough Planning & Community Services Department P.O. Box 69 | Barrow, Alaska 99723 (907) 852-0320 or (907) 852-0440 | Pub.: May 3, 4, 6 7,9, 11 13, 14, 16, 18, 20, 21, 23, 25, | 27, 28, 30; June 1, 3, 4, 6 8, 10,11 13, 2001 You don't have to travel jar to find great deals on all your travel needs! Visit the Tickets & Travel Section of the Anchorage Daily News Classifieds —— PUBLIC N oT PROPOSAL TO L Leas The Alaska Railroad Cor- poration (ARRC) oro r ALASKA INDUSTRIAL DEVELOPMENT AND EXPORT AUTHORITY {= ALASKA im =ENERGY AUTHORITY 813 WEST NORTHERN LIGHTS BLVD. = ANCHORAGE, ALASKA 99503 ® 907/269-3000 © FAX 907 / 269-3044 TOLL FREE (ALASKA ONLY) 888 / 300-8534 ALASKA ENERGY AUTHORITY/ALASKA INDUSTRIAL DEVELOPMENT AND EXPORT AUTHORITY Public Notice - Special Meeting Bradley Lake Project Management Committee Notice is hereby given that the Bradley Lake Project Management Committee will hold a SPECIAL MEETING VIA TELECONFERENCE regarding the Bradley Lake turbine repair report and the O&D recommendation to approve remedial action scheme. This meeting will be conducted by electronic media at the following location: Alaska Industrial Development and Export Authority, 813 W. Northern Lights Boulevard, Anchorage, Alaska. This meeting will commence at 10:00 a.m., Friday, May 11, 2001. For additional information, contact Eugene Bjornstad, Chairman, Chugach Electric Association, 5601 Minnesota Drive, Anchorage, Alaska 99503. The State of Alaska (AIDEA), complies with Title Il of the Americans with Disabilities Act of 1990. Disabled persons requiring special modifications to participate should contact AIDEA staff at (907) 269-3000 to make special arrangements. /s/ Alaska Energy Authority Project Management Committee Publish: Tuesday, May 8, 2001 STATE OF ALASKA, —/ mre comme DEPARTMENT OF COMMUNITY AND 989 WEST. FOURTHAVE,, SUITE 220 RE AL AFFAIRS ANCHORAGE, ALASKA 99501-2341 GION PHONE: (907) 269-4500 DIRECTOR'S FAX: (907) 269-4645 DIVISION OF ENERGY ENGINEERING FAX: (oom 269-4685 & printed on recycled paper b y G.D ARKRR KARR RRR KK KICK OROC COO OOOO OOOO—ROHOO OO OOOOOKOKO COCO OK OK x P. 01 x x TRANSACTION REPORT x : a MAY-07-01 MON 01:26 PM x X x SEND (M) x X x " DATE START — RECEIVER TX TIME PAGES TYPE NOTE Me DP x =) sss —* x MAY-07 01:25 PM 96899368 34” 2 SEND (M) OK 030—ix Ai iT TTT TTT TT TTT Tee tartare x x x TOTAL 345 PAGES: 2 x x x OK XK KK KK KKK KK KKK KK KKK KKK KK KK KK KKK KKK KKK KKK KKK KKK OOK PLEASE DELIVER TO THE FOLLOWING: Eugene Bjornstad Norm Story Wayne Carmony Michael Scott Steve Haagenson Dave Calvert Ron Saxton Chugach Electric Association Homer Electric Association Matanuska Electric Association Anchorage Municipal Light & Power Golden Valley Electric Association City of Seward Ater Wynne LLP (907) 562-6994 (907) 235-3323 (907) 745-9368 (907) 263-5204 (907) 458-5951 (907) 224-4085 (503) 226-0079 STATE OF ALASI(G —/ rome semen DEPARTMENT OF COMMUNITY AND 4999 WEST FOURTH AVE,, SUITE 220 RE! AL AFFAIRS ANCHORAGE, ALASKA 99501-2341 GION PHONE: (907) 269-4500 DIRECTOR'S FAX: (907) 269-4645 DIVISION OF ENERGY ENGINEERING FAX: (50) 269-4685 & printed on recycled paper b y C.D AARARAAAARA BARAK ABR ARABBABARB RARER RBRARABRRABRARBRARE RRR RRAR ERIK RIAA KIA KR RIK KK KRACK RAK OR RAK KOK X x xk x X x x X xX X X X X X Xx X X X X X BROADCAST DATE START MAY-O7 10:10 AM 95626994 RECEIVER 10:11 AM 919072353323 10:42 AM 919077459368 10:13 AM 92635204 10:15 AM 919074585951 10:16 AM 919072244085 10:17 AM 915032260079 TRANSACTION REPORT TX TIME PAGES 36" 2 34" KCC 1 / 26" 33” 47” 30” POMMMONM TOTAL TYPE SEND SEND SEND SEND SEND SEND SEND — ee EEE MAY NOTE OK Ok BUSY OK Ok OK Ok P, 01 -07-01 MON 10:42 AM Mt DP 027 027 027 027 027 027 027 4M 26S PAGES: 12 JOKKOOOOOOOOOOOOOOOOOOOOO OOOO KOCK OOOOOOOHOONOONOOOOOOOOOOOOO OOOO KOO OOOO COCO OOK PLEASE DELIVER TO THE FOLLOWING: Eugene Bjornstad Norm Story Wayne Carmony Michael Scott Steve Haagenson Dave Calvert Ron Saxton Chugach Electric Association Homer Electric Association Matanuska Electric Association (907) 562-6994 (907) 235-3323 (907) 745-9368 Anchorage Municipal Light & Power Golden Valley Electric Association City of Seward Ater Wynne LLP (907) 263-5204 (907) 458-5951 (907) 224-4085 (503) 228-NN79 x xX X x X X X X X XK X X X X X X x x x X PLEASE DELIVER TO THE FOLLOWING: Eugene Bjornstad Norm Story Wayne Carmony Michael Scott Steve Haagenson Dave Calvert Ron Saxton Chugach Electric Association Homer Electric Association Matanuska Electric Association Anchorage Municipal Light & Power Golden Valley Electric Association City of Seward Ater Wynne LLP (907) 562-6994 (907) 235-3323 (907) 745-9368 (907) 263-5204 (907) 458-5951 (907) 224-4085 (503) 226-0079 Notification of Bradley Lake Project Management Committee SPECIAL Meeting Teleconference meeting is scheduled to be held on Friday, May 11, 2001, at 10:00 a.m. Packets for this teleconference are scheduled to be sent out today and will include directions for connecting to the conference call. The following two (2) items will be discussed: 1. Bradley Lake Turbine Repair Report (Sieczkowski) 2. O&D Recommendation to Approve Remedial Action Scheme (Hickey) Please call Shauna at (907) 269-3028 with questions. BRADLEY LAKE PMC/CHUGACH ELECTRIC 4 ZIATION, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM will be required to expire prior to tripping the first unit. The second unit will be tripped 5 seconds after the first unit, if the oscillations have not decreased sufficiently (peak to peak oscillations of less than 30 MW). 7 Preliminary Schedule and Budgetary Cost Estimate The design phase of the RAS project, assuming a notice to proceed and an approved design by 5/1/01, could be completed by 5/30/01. Based on plant personnel availability, it is anticipated that the installation could then commence on 6/1/01 and be completed by 6/8/01. Testing could then commence and be completed by 6/15/01, assuming plant scheduling could be arranged. The budgetary estimate for the Bradley RAS is $32,200.’ ' This includes the RAS hardware ($5000), programming, and markups of plant drawings ($15,000). Installation cost is estimated to be $ 3,000 (3 man-days, ten hours, $100/hour loaded). Estimated testing cost (personnel only, no power production costs included) is $ 8,000 (three test engineers, plus one plant personnel, two days, ten hours per day, $100/hour loaded). Estimated direct expenses for testing and installation is $1,200 (2 RT aircraft for testing/installation @ $200/RT and 8 days subsistence @ $50/day — HEA provided housing). ELECTRIC POWER SYSTEMS PAGE8 MARCH 2001 BRADLEY LAKE PMC/CHUGACH ELECTRIC ¢ SIATION, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM e Unit 2 Deflector in Stream e Unit 1 Oscillation Detected ¢ Unit 2 Oscillation Detected e Unit 1 reduce needle opening e Unit 2 reduce needle opening e Unit 1 Trip e Unit 2 Trip Responsibilities: EPS will design and implement the Bradley RAS, with assistance from Chugach for specification of the “deflectors in stream” calculation. Plant personnel will perform the installation of the system at the plant, and the interface of the system to local and SCADA annunciation. 6 Potential Negative Effects of the RAS The Bradley RAS is designed to operate independently of dispatcher intervention, and thus has predictable results. The potential “negative” effects of implementing the system as described are attributable only to the scenarios where control would be exerted. 6.1 Reduce Bradley Unit Needle positions If the RAS detects the deflector is in the stream, it will attempt to reduce the needle openings to the point that the deflectors are no longer in the stream. For the envisioned application, no significant real power output reduction should occur. The only effect would be to reduce the needle openings so that the deflectors are no longer in the stream. The control system will have verification in the control loop to limit any real power reduction due to this mode of remedial action. 6.2 Trip Bradley Lake units If the oscillations are severe, and the reduction of the Bradley needle positions fails to arrest the oscillations, then the RAS will sequentially trip the Bradley units. One unit will be tripped first, and time allowed to determine if the oscillations are diminished or arrested. If the oscillations do not cease, the second Bradley unit will be tripped so as to minimize damage to the units. If one or both units trip, and, depending on system configuration and spinning reserve, loadshedding may occur throughout, or in a single area of the interconnected system. The tripping logic will only be armed after (1) the “deflector in stream” alarm condition is detected, and (2) oscillations have been detected, either in the real power output or in the deflector “change in direction” calculation. After arming the trip, a timer (10-15 seconds) ! ELECTRIC POWER SYSTEMS PAGE7 MARCH 2001 BRADLEY LAKE PMC/CHUGACH ELECTRIC / CIATION, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM e¢ Determination of oscillations by looking at the deflector position transducers, and noting three sequential changes in direction of the deflector motion over a four second period. The detection of an oscillation by the local control system will be annunciated to dispatch via the RTU. e Measurement of deflector and needle position, and the mathematical determination of if the deflector is in the stream. The detection of the deflector in the stream will be annunciated to dispatch. e Reduction in the needle openings if the deflectors are determined to be in the stream. The controlled reduction of needle openings will be annunciated to dispatch. e Tripping of the units if “large” oscillations occur for greater than 10-15 seconds. The implementation of the RAS as described above keeps the dispatcher informed of events and statuses at the plant, but does not require the dispatcher to intervene in order for the system to perform control. 5 Proposed Remedial Action System Implementation The Bradley RAS team proposes to implement the RAS design criteria as follows: 5.1 Local Processing The local control will consist of a GE 90-30 PLC system with the following inputs and outputs: Inputs e Bradley Unit 1 MW e Bradley Unit 2 MW e Deflector position e Needle position e Override control system (Chugach SCADA) e Vibration Detected Outputs e Unit 1 Power > 30 MW e Unit 2 Power > 30 MW e Unit 1 Deflector in Stream ELECTRIC POWER SYSTEMS PAGE 6 MARCH 2001 BRADLEY LAKE PMC/CHUGACH ELECTRIC A‘ MATION, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM When the RAS determines that the deflectors have entered the stream, the system dispatcher will be notified via the Chugach SCADA system, that he is operating the plant in a mode where oscillations are possible. 3.3. Begin aggressive control to remove the deflectors from the stream at Bradley When the deflectors are determined to be in the stream at Bradley, and the dispatcher has been notified, the local RAS system will then begin to aggressively close the needles, effectively removing the deflectors from the stream. If the units are in steady state operation, the system will see no appreciable reduction in real electrical power from the Bradley Plant. 3.4 Provide aggressive setpoint control when oscillations are detected When oscillations are detected at Bradley, aggressive control should be implemented at Bradley in an attempt to dampen the oscillations. The local RAS will annunciate to SCADA that local control action is being taken, and the needle openings will be aggressively reduced. This will result in a reduction of mechanical input power to the turbine, thus reducing it’s ability to constructively sustain or exaggerate the oscillations. The aggressive reduction in the mechanical input power of the machines could result in some loadshedding. 3.5 Trip Bradley units if oscillations continue In the case where the local RAS control fails to arrest the oscillation of the Bradley units after 10-15 seconds, and the magnitude of the oscillation are determined to be sufficient to cause possible damage to the units (£30 MW), the Bradley units should be tripped so as to avoid additional, and possibly increasing, forces on the shafts. The time to trip and magnitude of the oscillations are not analytically derived, but based on the utilities current experience with prior Bradley oscillations. The tripping of the Bradley units will likely result in loadshed throughout the interconnected system. 4 Proposed Remedial Action System Conceptual Design Bradley oscillations have been observed to have a period in the 600 mS range. This period of oscillation requires the processing of plant data onsite in order to avoid aliased data. A local control/processing system will be required onsite to perform the following functions: e Measurement of machine real power output, and the detection of oscillations (in part) by observation of the change of direction of power from the units. This will detect both plant-system oscillations, as well as unit-unit oscillations. The detection of an oscillation by the local control system will be annunciated to dispatch via the RTU. ELECTRIC POWER SYSTEMS PAGES MARCH 2001 BRADLEY LAKE PMC/CHUGACH ELECTRIC A SIATION, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM should not rely on the dispatchers for intervention during or just prior to, an oscillatory event. 3 Discussion of Remedial Action System The RAS at Bradley will be designed to perform annunciation and control functions so as to alarm dispatch personnel when the plant is operating in a potentially critical operating range. Should a deflector be in the stream, the RAS will exert control in an attempt to minimize the likelihood of an oscillation occurring. If an actual oscillation is detected, the RAS will exert control to dampen the oscillations. Specifically, the Bradley RAS will be constructed to: e Annunciate when either of the units are above a MW level that in the past has exhibited oscillatory behavior. e Annunciate when the deflectors are in the water stream at Bradley. e Ifthe deflectors are determined to be in the stream, begin aggressive control of the needles to reduce the water stream such that the deflectors effectively come out of the stream. e If oscillations are detected at Bradley, provide aggressive setpoint control to reduce the needle openings at Bradley unit, in order to dampen or minimize the oscillations at Bradley. e If the oscillations continue, trip the Bradley Lake units offline to minimize their exposure to the potentially damaging oscillations. The Bradley RAS can be disabled from dispatch by a “poke point” on the Bradley Lake plant display. This will allow the system dispatcher to disable the RAS system, should it misoperate, or if unforeseen system conditions require it's temporary deactivation. 3.1 Annunciate when either of the Bradley units are above a given MW output The Bradley oscillations are generally observed when the machines are above 30 MW, while in six needle operation. The local Bradley RAS system will annunciate to dispatch when either of the units are operating above 30 MW. No specific dispatcher action is required, other than to note that the units are operating in a region where oscillations are possible. 3.2 Annunciate when the deflectors are in the stream at Bradley Both the deflector and needle positions have transducers installed. Given the position indications from the deflector and needle transducers, it can be mathematically determined when the deflectors enter the water stream. ELECTRIC POWER SYSTEMS PAGE 4 MARCH 2001 BRADLEY LAKE PMC/CHUGACH ELECTRIC A 2IATION, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM 1 Background and Scope Since the commissioning of the Bradley Lake units, large-scale oscillations have been observed. While observed and recorded on the power system, these oscillations were not reproducible in or anticipated by any of the system studies performed by the Bradley design consultants. In 1997-98, in a cooperative effort between the Bradley owners and Electric Power Systems, Inc. (“EPS”), a computer model was developed whereby the oscillations could be produced and characterized in simulation. Subsequent to the system studies with the “new” model, the Bradley plant was instrumented and testing done on the units to further understand the oscillations and the causes. Oscillations observed previously and predicted in simulation were successfully induced in the online Bradley testing. One of the long-term solutions to the Bradley oscillations involves improvements to the Bradley governor system. The task of defining and implementing a new governor algorithm is currently under study by the utilities. In the interim, a remedial action scheme (“RAS”) is required to (1) alert the system dispatchers when the plant is operating in an area where it may be susceptible to oscillations, (2) initiate plant control in order to dampen or minimize the length and magnitude of the oscillations, and (3) should the oscillations continue, trip the Bradley units in order to minimize their exposure to potentially damaging forces to the machines. Chugach, under the direction of the Bradley Lake Project Management Committee (“BPMC”) and the Bradley Lake Operations and Dispatch Subcommittee (“O&D”), has assembled a team to undertake the definition and implementation of the RAS. Pe ali Re els) (11) The units at Bradley Lake are subject to potentially severe oscillations for the following conditions: 1. The oscillations are observed when the deflectors are in the water stream. 2. Operation of any unit over approximately 30 MW output. The 30 MW criteria is based on observed behavior of the plant, and not on any analytical investigation. 3. The oscillations are observed to start primarily when there is an overfrequency event on the system. This causes the deflectors to cut into the stream, thus satisfying the requirement (1) above. The risk of damage to the units is not defined at this time, but it is anticipated that there is some potential for damage, give the large oscillations that have been observed. It was also noted in the RAS project scoping meetings that the RAS system needs to annunciate to dispatch personnel the status of the plant with regard to remedial action, but ELECTRIC POWER SYSTEMS PAGE 3 MARCH 2001 BRADLEY LAKE PMC/CHUGACH ELECTRIC A ATION, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM TABLE OF CONTENTS 1 “Background ANG! SCONE) sccccticsccsccecesececceeecesesescsecestadoesssesecasstecacivasesuveresbasesscsesusnsescsesssesesstesere 3 2 IDESESTIDUON OF PEODION sccccccscceccossscseocesaszcesesedscsucavecrersececseceaszscevescvsctesvecceasusepve sesceresvesasesrssaes 3 3 Discussion of Remedial Action System 3.1 Annunciate when either of the Bradley units are above a given MW output .............0::eeeeeeeeeee 4 3.2 Annunciate when the deflectors are in the stream at Bradley .................cccesessseseseeeeeeeeeeeeeeenenes 4 3.3. Begin aggressive control to remove the deflectors from the stream at Bradley ...............0::c000 5 3.4 Provide aggressive setpoint control when oscillations are detected ............::cceesseeeeesseeeeseeeeens 5 3.5 Trip Bradley units if oscillations continue. 4 Proposed Remedial Action System Conceptual DeSign..........sssssessessseseeseeseseeseesseereeess 5 5 Proposed Remedial Action System Implementation ..........cccsssessessseseeseseseeseeeeeecseeesseeseees 6 5.1 LocallPFoCOsSING |o:..cennsmesscorvesesenens caste oremetrosnenearsnsaanseaseremanesenanereeeanTeeNemaOETOTEREUNTSECUNIE 6 6 Potential Negative Effects of the RAS ........csssssssssssssssssssssssssssssscssssssssssesessssssseessseseesenes 7 6.1 Reduce) Bradley: Unit NOSdiS DOBIIONG <7... <-.<.<.ancse-- coer aeerncesresc¥sovyeseuserwsiycssegnsesacoursees tes cares 7 6.2 Trip Bradley Wake) Wntts ssseccssssssccesscnscenssvasseecensnsaavsusvmanenssavenceaesvma menenis snsaets seas se 6500 Ts de andsiacee eu 7 Preliminary Schedule and Budgetary Cost Estimate ...........csssssseseeseeeeeesseeeeeeseeeeeeees 8 ELECTRIC POWER SYSTEMS PAGE 2 MARCH 2001 AF, @rlectric Power S ystems inc, Consulting Engineers Bradley Lake O&D Bradley Lake Remedial Action Scheme March, 2001 ALASKA INDUSTRIAL DEVELOPMENT e_ > AND EXPORT AUTHORITY {= ALASKA @™m™ =ENERGY AUTHORITY 813 WEST NORTHERN LIGHTS BLVD. #© ANCHORAGE, ALASKA 99503 ® 907/269-3000 © FAX 907 / 269-3044 TOLL FREE (ALASKA ONLY) 888 / 300-8534 BRADLEY LAKE PROJECT MANAGEMENT COMMITTEE SPECIAL MEETING TELECONFERENCE AGENDA Friday, May 11, 2001 — 10:00 a.m. (Via electronic media at AIDEA/AEA — 813 W. Northern Lights Boulevard) 4, CALL TO ORDER Bjornstad 2: ROLL CALL (for Committee members) 3. PUBLIC ROLL CALL (for all others present) 4. PUBLIC COMMENT 5. AGENDA COMMENTS 6. NEW BUSINESS A. Bradley Lake Turbine Repair Report Sieczkowski B. O&D Recommendation to Approve Remedial Action Scheme Hickey 7, COMMITTEE COMMENTS A. Next Meeting Date Bjornstad 8. ADJOURNMENT TELECONFERENCE INSTRUCTIONS Friday, May 11, 2001 — 10:00 a.m. To join the teleconference, please do the following: Dial 1-800-315-6338 Enter 0511# BRADLEY LAKE PMC/CHUGACH ELECTRIC ICIATION, INC. 7 BRADLEY LAKE REMEDIAL ACTION 51 STEM will be required to expire prior to tripping the first unit. The second unit will be tripped 5 seconds after the first unit, if the oscillations have not decreased sufficiently (peak to peak oscillations of less than 30 MW). 7 Preliminary Schedule and Budgetary Cost Estimate The design phase of the RAS project, assuming a notice to proceed and an approved design by 5/1/01, could be completed by 5/30/01. Based on plant personnel availability, it is anticipated that the installation could then commence on 6/1/01 and be completed by 6/8/01. Testing could then commence and be completed by 6/15/01, assuming plant scheduling could be arranged. The budgetary estimate for the Bradley RAS is $32,200." ' This includes the RAS hardware ($5000), programming, and markups of plant drawings ($15,000). Installation cost is estimated to be $ 3,000 (3 man-days, ten hours, $100/hour loaded). Estimated testing cost (personnel only, no power production costs included) is $ 8,000 (three test engineers, plus one plant personnel, two days, ten hours per day, $100/hour loaded). Estimated direct expenses for testing and installation is $1,200 (2 RT aircraft for testing/installation @ $200/RT and 8 days subsistence @ $50/day — HEA provided housing). ELECTRIC POWER SYSTEMS PAGE 8 MARCH 2001 BRADLEY LAKE PMC/CHUGACH ELECTRIC. CIATION, INC. = BRADLEY LAKE REMEDIAL ACTION 51STEM e Unit 2 Deflector in Stream e Unit 1 Oscillation Detected e Unit 2 Oscillation Detected e Unit 1 reduce needle opening e Unit 2 reduce needle opening e Unit 1 Trip e Unit 2 Trip Responsibilities: EPS will design and implement the Bradley RAS, with assistance from Chugach for specification of the “deflectors in stream” calculation. Plant personnel will perform the installation of the system at the plant, and the interface of the system to local and SCADA annunciation. 6 Potential Negative Effects of the RAS The Bradley RAS is designed to operate independently of dispatcher intervention, and thus has predictable results. The potential “negative” effects of implementing the system as described are attributable only to the scenarios where control would be exerted. 6.1 Reduce Bradley Unit Needle positions If the RAS detects the deflector is in the stream, it will attempt to reduce the needle openings to the point that the deflectors are no longer in the stream. For the envisioned application, no significant real power output reduction should occur. The only effect would be to reduce the needle openings so that the deflectors are no longer in the stream. The control system will have verification in the control loop to limit any real power reduction due to this mode of remedial action. 6.2 Trip Bradley Lake units If the oscillations are severe, and the reduction of the Bradley needle positions fails to arrest the oscillations, then the RAS will sequentially trip the Bradley units. One unit will be tripped first, and time allowed to determine if the oscillations are diminished or arrested. If the oscillations do not cease, the second Bradley unit will be tripped so as to minimize damage to the units. If one or both units trip, and, depending on system configuration and spinning reserve, loadshedding may occur throughout, or in a single area of the interconnected system. The tripping logic will only be armed after (1) the “deflector in stream” alarm condition is detected, and (2) oscillations have been detected, either in the real power output or in the deflector “change in direction” calculation. After arming the trip, a timer (10-15 seconds) ! ELECTRIC POWER SYSTEMS PAGE7 MARCH 2001 BRADLEY LAKE PMC/CHUGACH ELECTRIC CIATION, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM e Determination of oscillations by looking at the deflector position transducers, and noting three sequential changes in direction of the deflector motion over a four second period. The detection of an oscillation by the local control system will be annunciated to dispatch via the RTU. e Measurement of deflector and needle position, and the mathematical determination of if the deflector is in the stream. The detection of the deflector in the stream will be annunciated to dispatch. e Reduction in the needle openings if the deflectors are determined to be in the stream. The controlled reduction of needle openings will be annunciated to dispatch. e Tripping of the units if “large” oscillations occur for greater than 10-15 seconds. The implementation of the RAS as described above keeps the dispatcher informed of events and statuses at the plant, but does not require the dispatcher to intervene in order for the system to perform control. 5 Proposed Remedial Action System Implementation The Bradley RAS team proposes to implement the RAS design criteria as follows: 5.1 Local Processing The local control will consist of a GE 90-30 PLC system with the following inputs and outputs: Inputs e Bradley Unit 1 MW e Bradley Unit 2 MW e Deflector position e Needle position e Override control system (Chugach SCADA) e Vibration Detected Outputs e Unit 1 Power > 30 MW e Unit 2 Power > 30 MW e Unit 1 Deflector in Stream ELECTRIC POWER SYSTEMS PAGE6 MARCH 2001 BRADLEY LAKE PMC/CHUGACH ELECTRIC ICIATION, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM When the RAS determines that the deflectors have entered the stream, the system dispatcher will be notified via the Chugach SCADA system, that he is operating the plant in a mode where oscillations are possible. 3.3 Begin aggressive control to remove the deflectors from the stream at Bradley When the deflectors are determined to be in the stream at Bradley, and the dispatcher has been notified, the local RAS system will then begin to aggressively close the needles, effectively removing the deflectors from the stream. If the units are in steady state operation, the system will see no appreciable reduction in real electrical power from the Bradley Plant. 3.4 Provide aggressive setpoint control when oscillations are detected When oscillations are detected at Bradley, aggressive control should be implemented at Bradley in an attempt to dampen the oscillations. The local RAS will annunciate to SCADA that local control action is being taken, and the needle openings will be aggressively reduced. This will result in a reduction of mechanical input power to the turbine, thus reducing it’s ability to constructively sustain or exaggerate the oscillations. The aggressive reduction in the mechanical input power of the machines could result in some loadshedding. 3.5 Trip Bradley units if oscillations continue In the case where the local RAS control fails to arrest the oscillation of the Bradley units after 10-15 seconds, and the magnitude of the oscillation are determined to be sufficient to cause possible damage to the units (>+30 MW), the Bradley units should be tripped so as to avoid additional, and possibly increasing, forces on the shafts. The time to trip and magnitude of the oscillations are not analytically derived, but based on the utilities current experience with prior Bradley oscillations. The tripping of the Bradley units will likely result in loadshed throughout the interconnected system. 4 Proposed Remedial Action System Conceptual Design Bradley oscillations have been observed to have a period in the 600 mS range. This period of oscillation requires the processing of plant data onsite in order to avoid aliased data. A local control/processing system will be required onsite to perform the following functions: ] e Measurement of machine real power output, and the detection of oscillations (in part) by observation of the change of direction of power from the units. This will detect both plant-system oscillations, as well as unit-unit oscillations. The detection of an oscillation by the local control system will be annunciated to dispatch via the RTU. ELECTRIC POWER SYSTEMS PAGES MARCH 2001 BRADLEY LAKE PMC/CHUGACH ELECTRIC CIATION, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM should not rely on the dispatchers for intervention during or just prior to, an oscillatory event. 3 Discussion of Remedial Action System The RAS at Bradley will be designed to perform annunciation and control functions so as to alarm dispatch personnel when the plant is operating in a potentially critical operating range. Should a deflector be in the stream, the RAS will exert control in an attempt to minimize the likelihood of an oscillation occurring. If an actual oscillation is detected, the RAS will exert control to dampen the oscillations. Specifically, the Bradley RAS will be constructed to: e Annunciate when either of the units are above a MW level that in the past has exhibited oscillatory behavior. e Annunciate when the deflectors are in the water stream at Bradley. e Ifthe deflectors are determined to be in the stream, begin aggressive control of the needles to reduce the water stream such that the deflectors effectively come out of the stream. e If oscillations are detected at Bradley, provide aggressive setpoint control to reduce the needle openings at Bradley unit, in order to dampen or minimize the oscillations at Bradley. e If the oscillations continue, trip the Bradley Lake units offline to minimize their exposure to the potentially damaging oscillations. The Bradley RAS can be disabled from dispatch by a “poke point” on the Bradley Lake plant display. This will allow the system dispatcher to disable the RAS system, should it misoperate, or if unforeseen system conditions require it's temporary deactivation. 3.1 Annunciate when either of the Bradley units are above a given MW output The Bradley oscillations are generally observed when the machines are above 30 MW, while in six needle operation. The local Bradley RAS system will annunciate to dispatch when either of the units are operating above 30 MW. No specific dispatcher action is required, other than to note that the units are operating in a region where oscillations are possible. 3.2 Annunciate when the deflectors are in the stream at Bradley Both the deflector and needle positions have transducers installed. Given the position indications from the deflector and needle transducers, it can be mathematically determined when the deflectors enter the water stream. ELECTRIC POWER SYSTEMS PAGE 4 MARCH 2001 BRADLEY LAKE PMC/CHUGACH ELECTRIC )CIATION, INC. BRADLEY LAKE REMEDIAL ACTION SYSTEM 1. Background and Scope Since the commissioning of the Bradley Lake units, large-scale oscillations have been observed. While observed and recorded on the power system, these oscillations were not reproducible in or anticipated by any of the system studies performed by the Bradley design consultants. In 1997-98, in a cooperative effort between the Bradley owners and Electric Power Systems, Inc. (“EPS”), a computer model was developed whereby the oscillations could be produced and characterized in simulation. Subsequent to the system studies with the “new” model, the Bradley plant was instrumented and testing done on the units to further understand the oscillations and the causes. Oscillations observed previously and predicted in simulation were successfully induced in the online Bradley testing. One of the long-term solutions to the Bradley oscillations involves improvements to the Bradley governor system. The task of defining and implementing a new governor algorithm is currently under study by the utilities. In the interim, a remedial action scheme (“RAS”) is required to (1) alert the system dispatchers when the plant is operating in an area where it may be susceptible to oscillations, (2) initiate plant control in order to dampen or minimize the length and magnitude of the oscillations, and (3) should the oscillations continue, trip the Bradley units in order to minimize their exposure to potentially damaging forces to the machines. Chugach, under the direction of the Bradley Lake Project Management Committee (“BPMC’) and the Bradley Lake Operations and Dispatch Subcommittee (“O&D”), has assembled a team to undertake the definition and implementation of the RAS. 2 Description of Problem The units at Bradley Lake are subject to potentially severe oscillations for the following conditions: 1. The oscillations are observed when the deflectors are in the water stream. 2. Operation of any unit over approximately 30 MW output. The 30 MW criteria is based on observed behavior of the plant, and not on any analytical investigation. 3. The oscillations are observed to start primarily when there is an overfrequency event on the system. This causes the deflectors to cut into the stream, thus satisfying the requirement (1) above. The risk of damage to the units is not defined at this time, but it is anticipated that there is some potential for damage, give the large oscillations that have been observed. It was also noted in the RAS project scoping meetings that the RAS system needs to annunciate to dispatch personnel the status of the plant with regard to remedial action, but ELECTRIC POWER SYSTEMS PAGE 3 MARCH 2001 BRADLEY LAKE PMC/CHUGACH ELECTRIC ICIATION, INC. BRADLEY LAKE REMEDIAL ACTION o1 STEM TABLE OF CONTENTS 1) TBackqroundiand SCOP ciciiccccscccccnsecceccerscascusccnenececsccanseucucucususucarocaveceadeasessusossesesesasusscesrencees 3 2. Description of Problem 3 Discussion of Remedial Acton Systemtiscss.c.cccsosssesesessecccesascescrscessctescsevecsesscesscsesesscusascessess 4 3-1 Annunciate when either of the Bradley units are above a given MW output ...............:cccceceeseeee 4 3.2 Annunciate when the deflectors are in the stream at Bradley ...........::ccccccsesssecessseeeessseeeserseees 4 3.3 Begin aggressive control to remove the deflectors from the stream at Bradley ..............::csccee00 5 3.4 Provide aggressive setpoint control when oscillations are detected ...............:cccscceseesseeeeeeeseees 5 SOHAL ND Eracley Units if OGCHATONS COMUNUG iiiesstcesssecressteccesn sees ecatetteasestonteensanncestestivsteauerce sass 5 4 Proposed Remedial Action System Conceptual DeSigh..........ssssssssessseseesseeneeereeeeeeneees 5 5 Proposed Remedial Action System Implementation ..........:ssssssssceseesssesssesseesesenesenenenenees 6 5.1 LE PIII cscs siccctniccnnncsmcnnssssscesiatatien mianiinasn ania Acst ia NaRECINEE A htNiib tab neninnsammnnnennneneenene 6 6 Potential Negative Effects of the RAS........cccscscssssssessesssesseseesesenseeseesesseeecetseeseeeneeeseeaeaeees if, 6.1 Reduce Bradley Unit Needle positions Gr2rUniD Bradley AKG UNS sect eccccsccsctcccssceccour scescnceccsectscanetccnantacanacaceateteecnecrenzcs coveaecedevdeccesveus 7 7 Preliminary Schedule and Budgetary Cost Estimate ELECTRIC POWER SYSTEMS PAGE 2 MARCH 2001 = . @llectric Power System INC. Consulting Engineers Bradley Lake O&D Bradley Lake Remedial Action Scheme March, 2001 ALASKA INDUSTRIAL DEVELOPMENT * AND EXPORT AUTHORITY {= ALASKA @@E™ ENERGY AUTHORITY 813 WEST NORTHERN LIGHTS BLVD. * ANCHORAGE, ALASKA 99503 © 907/269-3000 © FAX 907/269-3044 TOLL FREE (ALASKA ONLY) 888 / 300-8534 BRADLEY LAKE PROJECT MANAGEMENT COMMITTEE SPECIAL MEETING TELECONFERENCE AGENDA Friday, May 11, 2001 — 10:00 a.m. (Via electronic media at AIDEA/AEA — 813 W. Northern Lights Boulevard) a: CALL TO ORDER Bjornstad 2) ROLL CALL (for Committee members) 3. PUBLIC ROLL CALL (for all others present) 4. PUBLIC COMMENT 5. AGENDA COMMENTS 6. NEW BUSINESS A. Bradley Lake Turbine Repair Report Sieczkowski B. O&D Recommendation to Approve Remedial Action Scheme Hickey Ts COMMITTEE COMMENTS A. Next Meeting Date Bjornstad 8. ADJOURNMENT Oc A Lian D2 Oo + sod (08 AM a fr- Steve oor ad WD AM BLO vad t Coban, Hi hau fi: -, i De Stead