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Home My WebLink About2022-05-20 IMC Agenda and docs INTERTIE MANAGEMENT COMMITTEE (IMC) REGULAR MEETING AGENDA- REVISED-v2 May 20, 2022 9:00 AM Alaska Energy Authority Board Room 813 W Northern Lights Blvd, Anchorage, AK 99503 To participate dial 1-888-585-9008 and use code 212-753-619# 1. CALL TO ORDER 2. ROLL CALL FOR COMMITTEE MEMBERS 3. PUBLIC ROLL CALL 4. PUBLIC COMMENTS 5. AGENDA APPROVAL 6. APPROVAL OF PRIOR MINUTES – March 25, 2022 7. NEW BUSINESS A. FY22 IMC Budget Amendment AEA B. FY23 IMC Budget AEA C. Federal Funding Opportunities for Railbelt Transmission Upgrades 8. OLD BUSINESS A. Strategic Plan for Intertie IOC 9. COMMITTEE REPORTS A. Operators Report / OC REPORT Chair of OC B. BUDGET to ACTUALS AEA 10. MEMBERS COMMENTS 11. NEXT MEETING DATE – June 24, 2022 12. ADJOURNMENT 813 West Northern Lights Boulevard, Anchorage, Alaska 99503 T 907.771.3000 Toll Free 888.300.8534 F 907.771.3044 REDUCING THE COST OF ENERGY IN ALASKA AKENERGYAUTHORITY.ORG RGYAUTHORITY.ORG MEMORANDUM TO: Alaska Intertie Management Committee FROM: Dona Keppers, Chief Financial Officer THROUGH: Curtis W. Thayer, Executive Director, Alaska Energy Authority DATE: May 18, 2022 RE: FY22 Budget Shortfall The FY22 Alaska Intertie Budget to Actual Report for the period ended March 31, 2022 indicates there is a $63,000 budget shortfall in the AEA Administrative (Personal Services, Travel and Other Costs) cost category for FERC account 920. As of March 31, 2022, the Alaska Intertie agreement threshold of $100,000 per line item has not been met. However, for the fiscal year ended June 30, 2022, the shortfall is expected to be approximately $120,000 if the budget is not increased at this time. 3Q22 costs are trending similar to the prior year and the annual administrative costs are forecasted to total approximately $216,000 based on an average. Prior year actual spend was $210,000 with a $90,000 FY21 approved budget amount. FY22 budget amount is currently at $100,000 and if unadjusted, the by fiscal year will end at a deficit. To meet threshold requirements, FY22 Budget Amendment 1, to increase the Administrative cost budget by $120,000, is being presented for consideration. If approved, the FY22 AEA Administrative Cost budget would be $220,000. Page 1 of 4 Alaska Intertie FY23 Proposed Budget FY22 Approved Proposed FY20 FY21 ACTUALS FY22 FY23 Actual Actual @ 3/31/22 Budget Budget REVENUES GVEA 1,554,543 1,942,988 1,445,023 1,703,855 2,659,181 ML&P 237,938 111,217 CEA 258,090 290,065 198,801 225,259 405,435 MEA 448,478 460,479 291,246 361,596 440,368 INTEREST 16,611 903 100 TOTAL REVENUES 2,515,661 2,805,652 1,935,170 2,290,710 3,504,985 EXPENSES FERC 562 - Station Operation Expenses GVEA - Substation Electricity Usage 9,675 9,382 30,675 8,000 - Per GVEA 9,675 9,382 30,675 8,000 - FERC 566 - Miscellaneous Transmission Expense Private Line Telephone Service for AKI SCADA (GVEA)11,718 5,556 4,167 18,000 10,000 Per GVEA Cell Phone Comm. Svc for Weather Monitoring (Verizon)12,022 11,904 9,020 12,000 13,000 Per AEA SLMS Support and Intertie Ground Patrol 87,863 98,540 117,339 100,000 140,000 Per AEA Misc Studies as needed (Cyber Security Study)- - - - - 111,603 116,000 130,526 130,000 163,000 FERC 567 - Transmission Expenses - Rents Rents - Alaska Railroad 700 700 700 700 700 Fixed MEA - Talkeetna Storage 7,200 7,200 5,175 7,200 7,200 Fixed PSSE key replacement - - - 7,900 7,900 5,875 7,900 7,900 FERC 569 Maintenance of Structures MEA - Maintenance of Structures - - - - - Per MEA - - - - - - - - FERC 570 - Maintenance of Station Equipment GVEA - Healy, Cantwell, Goldhill 104,224 154,917 55,625 74,340 75,000 Per GVEA GVEA - SCADA Maintenance Healy, Cantwell, Gold Hill - - - 5,000 5,000 Per GVEA GVEA - Replace Healy Substation Breaker B17 - Per GVEA GVEA - Healy, Teeland, Goldhill Dampers 59,016 - - - - Per GVEA GVEA - Healy and Goldhill Digital Fault Recorders 51,451 90,000 Per IOC GVEA - Healy SVC Fire Alarm Panel Replacement - - - - - Per GVEA GVEA - Gold Hill SVC Fire Alarm Panel Replacement - - - - - Per GVEA GVEA - Gold Hill SVC Cooling 460 65,000 Per GVEA GVEA - Cantwell Install Breakers or Load Break Switches - - 1,681 266,000 156,000 Per GVEA GVEA - Cantwell 4S2 Switch Repair - - - - - Per GVEA GVEA - Replace Battery Healy SVC - - - - - Per GVEA GVEA - Replace Battery Goldhill SVC - - - - - Per GVEA GVEA - Perform Maintenance, repaint Reactors Healy SVC Yard 60,414 145,494 - - - Per GVEA GVEA - Perform Maintenance, repaint Reactors Gold Hill SVC Yard 7,266 80,000 80,000 Per GVEA GVEA - Mobile Substation Site - - - - - Per GVEA GVEA - Cantwell RTU, Recloser, & Transformer Protection replacement - - - - - Per GVEA GVEA - Recloser Control Replacement - - - - - Per GVEA GVEA - Transformer Protection Upgrades - - - - - Per GVEA GVEA - Dissolved Gas Monitoring Gold Hill & Healy - - - - - Per GVEA GVEA - Cantwell Standby Generator Replacement 29,016 - Per GVEA GVEA - SVC Intertie Trust Fund Eligible Expenses - - - - - Per GVEA SVC ALASKA INTERTIE TRUST FUND - - - - - Per IMC CEA - AK Intertie Yard - - - - - CEA - Teeland Substation Communication 1,742 5,000 Per CEA CEA - Teeland Substation 113,849 183,401 112,216 85,000 168,200 Per CEA MEA - Douglas Substation 96 26,115 - - - Per MEA MEA - Douglas Substation 138 kV Bus Repair & BKR Inspections - 25,000 Per MEA MEA - Douglas Substation Breaker Replacement - - - - - Per MEA GVEA - Douglas Substation OOS relaying and communications - - - - - Per GVEA CEA - Telecomm Support (Douglas, Teeland, Anc-Fbks Leased Circuits)- - - - - Per CEA 337,598 538,943 230,441 665,340 514,200 FERC 571 - Maintenance of Overhead Lines GVEA - Northern Maintenance 37,171 68,204 86,845 78,000 100,000 Per GVEA GVEA - Northern ROW Clearing 89,493 36,721 68,882 73,000 300,000 Per GVEA GVEA - Landing Pads - - - Per GVEA GVEA - Re-level Structures & Adjust Guys - - - Per GVEA GVEA - Repair Tower 531 Foundation 50,000 Per GVEA GVEA - Repair Tower 532 Foundation 50,000 Per GVEA GVEA - Repair Tower 748 - - - Per GVEA GVEA - Repair Tower 692 - - - Per GVEA MEA - Special Patrols [Incl Helicopter Inspections]599 5,000 10,000 Per MEA MEA - Southern Maint (Incl Ground and Climbing Inspect)97,175 138,199 62,612 200,000 140,000 Per MEA MEA - Southern ROW Clearing 38,023 228,413 134,945 150,000 500,000 Per MEA MEA - TWR 195 Repair Monitoring - - - Per MEA MEA - Equipment Repair and Replacement 16,521 780,866 - 640,000 684,000 Per MEA 278,383 1,252,403 353,883 1,146,000 1,834,000 FERC 924 - Property Insurance AK Intertie - Insurance 36,253 38,773 21,517 35,650 25,000 Per AEA (Gen Liab/Comm Umbrella) & MEA (incl Aviation) 36,253 38,773 21,517 35,650 25,000 Intertie Operating Costs Total 781,413 1,963,401 772,917 1,992,890 2,544,100 Page 2 of 4 FERC 570 - Maintenance of Station Equipment MEA - Replace Protective Relay Schemes Douglas - - - - - Per MEA - - - - - Intertie Cost of Improvements Total - - - - - FERC 920 - AEA Administrative Costs Personal Services, Travel and Other Costs 101,058 210,409 162,363 100,000 200,000 Per AEA 101,058 210,409 162,363 100,000 200,000 FERC 920 - IMC Administrative Costs IMC Administrative Costs (Audit, meetings, legal)11,533 30,890 15,616 17,500 20,000 Per IMC Chair 11,533 30,890 15,616 17,500 20,000 FERC 566 - Miscellaneous Transmission Expense Misc Studies: System Reserves Study, PSS/E maint, AGC Study 69,023 186,675 69,952 200,000 216,000 per IOC LIDAR study (complete lidar, vegetation, PLS CADD file with drawings, structure/foundation movement, infrared, and imaging) 226,125 - - Asset management plan 50,000 per IOC Proposed Synchrophaser system 230,000 per IOC Unbalanced Snow Load mitigation analysis and recommendations 50,000 Reliability Standards Update (Hdale Inc.)- - - per IOC 69,023 412,800 69,952 200,000 546,000 Intertie Administration Costs Total 181,614 654,099 247,931 317,500 766,000 TOTAL EXPENSE 963,027 2,617,500 1,020,848 2,310,390 3,310,100 SURPLUS (SHORTAGE)1,552,634 188,152 914,322 (19,680) 194,885 Page 3 of 4 Alaska Intertie FY23 Proposed Budget True up to Contract GVEA MEA CEA TOTAL USAGE CAPACITY ADMIN CASH FLOW MONTH Value MWH MWH MWH MWH GVEA MEA CEA GVEA MEA CEA GVEA | MEA | CEA TOTALS Jul 32,301 1,918 0 34,219 $165,381 $9,820 $0 $209,820 $59,718 $150,102 $63,833 $658,675 Aug 36,741 1,968 0 38,709 $188,114 $10,076 $0 $63,833 $262,023 Sep 37,596 1,951 0 39,547 $192,492 $9,989 $0 $63,833 $266,314 Oct 40,739 2,003 0 42,742 $208,584 $10,255 $0 $63,833 $282,672 Nov 35,783 2,269 0 38,052 $183,209 $11,617 $0 $63,833 $258,660 Dec 35,761 2,455 0 38,216 $183,096 $12,570 $0 $63,833 $259,499 Jan 35,543 2,139 0 37,682 $181,980 $10,952 $0 $63,833 $256,765 Feb 30,397 2,018 0 32,415 $155,633 $10,332 $0 $63,833 $229,798 Mar 33,294 2,171 0 35,465 $170,465 $11,116 $0 $63,833 $245,414 Apr 38,537 1,906 0 40,443 $197,309 $9,759 $0 $63,833 $270,901 May 33,177 1,867 0 35,044 $169,866 $9,559 $0 $63,833 $243,259 Jun 38,652 1,811 0 40,463 $197,898 $9,272 $0 $63,833 $271,004 TOTAL 0 428,521 24,476 0 452,997 $2,194,028 $125,317 $0 $209,820 $59,718 $150,102 $766,000 $3,504,985 Total Energy:$2,319,345 Total Capacity :$419,640 452,997 MWH 415,247 MWH 204,984 MWH TOTAL MWH REVENUE $3,504,985 O&M BUDGET - Operating 2,544,100 O&M BUDGET - Administrative 766,000 UTILITY FY 23 TOTAL O&M BUDGET 3,310,100 MEA 28.40%22.20 MW SURPLUS (SHORTAGE)$194,885 CEA 71.60%55.80 MW GVEA 100.00%78.00 MW Annual Participant Administrative Contribution 255,333.33 156.0 Monthly Contribution per Participant 21,277.78 Usage Rate per KWH 0.00512$ Capacity Rate $2.69 Section 7.2.2 MINIMUM USAGE CONTRACT VALUE ALASKA INTERTIE FISCAL YEAR 2023 ENERGY PROJECTION TOTAL INTERTIE PROJECTED ENERGY USAGE Usage estimate reduced by 1/12 of Total for rate calculations Page 4 of 4 Alaska Intertie FY23 Proposed Budget Annual System Demand 18 19 19 20 20-21 21-22 3 YR AVG. SOUTHERN UTILITY PARTICIPANTS (MW) CEA 375.4 364.5 366.0 349.8 360.1 MW PROPOSED APPROVED APPROVED APPROVED APPROVED APPROVED MEA 137.0 137.0 145.0 146.0 142.7 MW 6/30/2023 6/30/2022 6/30/2021 6/30/2020 6/30/2019 6/30/2018 UNITS FY23 FY22 FY21 FY20 FY19 FY18 USAGE KWH 415,247,000 187,902,000 187,902,000 187,902,000 297,441,000 422,262,000 OPERATING BUDGET $2,544,100 1,992,890 2,007,385 2,168,391 2,024,298 1,529,178 MITCR KW 156,000 156,100 156,000 156,000 156,000 156,000 TOTAL 502.8 MW ENERGY (A)$.000/KWH $0.00512 $0.00886 $0.00892 $0.00964 $0.00568 $0.00302 NORTHERN UTILITY PARTICIPANTS (MW) CAPACITY (B)$/KW $2.69 $2.11 $2.12 $2.29 $2.14 $1.62 GVEA 200 191 204 204.7 199.9 MW TOTAL 199.9 MW MITCR DETERMINATION FY 23 KWH CAP RATE CAP CHARGES MEA 28.40%22.20 MW 22,200 $2.69 59,718.00 CEA 71.60%55.80 MW 55,800 $2.69 150,102.00 GVEA 100.00%78.00 MW 78,000 $2.69 209,820.00 156.00 MW 156,000 419,640.00 (A) See Section 7.2.5 AK Intertie Agreement (B) See Section 7.2.6 AK Intertie Agreement MINIMUM INTERTIE TRANSFER CAPABILITY RIGHTS (MITCR) DETERMINATION FOR FISCAL YEAR 2023 Alaska Intertie Strategic Planning Update May 20, 2022 Proposed Vision for the Alaska Intertie• Support the Railbelt Utilities’ consensus vision that was under discussion in August 2021:May 20, 2022| Pg. 2Railbelt Electric Utility VisionPowering Alaska’s Clean Energy Future Vision: The interconnected Railbelt electric system will provide a platform for economic vitality and enhanced quality of life for Alaskans thanks to:  consistent, reasonable rates,  a dependable and comprehensive electric system,  a diverse and reduced‐carbon generation portfolio, and  transparency and inclusion of diverse perspectives. Initial Goal: Improve the interconnected electric system from Homer to Fairbanks and drive the development of sustainable low‐cost, clean energy options. Background• Alaska Intertie was commissioned in 1984• 170 miles from Healy Substation to Douglas Sub (near Willow) • Connected to the Southcentral area 230kV & 115kV transmission at Teeland Substation through 26 miles of 138kV transmission line owned by MEA • Three SVC systems (Teeland, Healy, & Gold Hill)• Rated transfer capacity is about 78MW (per AIA)• Capacity is limited by transient stability, not thermal rating of conductors or voltage dropMay 20, 2022| Pg. 3 Background• Transmission towers and conductors between Healy and Douglas Substations were designed to operate at 345kV• Currently operated at 138kV• 766 structures, mostly steel X towers• Bundled 954 MCM “Rail” conductorMay 20, 2022| Pg. 4 Selected Construction, Repair and Upgrade Events• 2020-2022: Marker ball replacement • 2018: Douglas Substation upgrade. $790k.• 2018: Tower #748 repairs for $1.2M• 2015: SVC’s replaced by Alstom Grid with a $10M state appropriation• 2012: Tower #195 replacement for $2.4M• 2007: Tower #692• 1984: Construction cost was $124 million in State appropriationsMay 20, 2022| Pg. 5 Ongoing Work• SVC scheduled maintenance• SVC POD tuning to address oscillation risk• Marker ball replacement• Development of preventive maintenance plan, leading to an asset management plan• Development of vegetation & wildfire management plansMay 20, 2022| Pg. 6 ReliabilityMay 20, 2022| Pg. 7• 2012-2021 Forced outage rate: 0.41%• 2012-2021 All outages: 1.28%• Compares favorably to NERC, which averaged 1.84% for 200kV+ lines, 2011-2015.Alaska Intertie All Outages Summary 2012‐2021 average duration: 15.9 hours2012‐2021 total count: 862012‐2021 average per year: 8.62012‐2021 longest outage: 275.6 hours2012‐2021 total duration: 1121.3 hours2012‐2021 all outages rate: 1.28%Alaska Intertie Forced Outage Summary 2012‐2021 average duration: 9.7 hours2012‐2021 total count: 372012‐2021 average per year: 3.72012‐2021 longest outage: 111.6 hours2012‐2021 total duration: 358.5 hours2012‐2021 forced outage rate: 0.41% Challenges• Effects of unbalanced snow loading• Aging Equipment• Melting Permafrost•Erosion• Wildfire risk• Clearing vegetation• Access May 20, 2022| Pg. 8 Proposed Strategic Plan to accomplish Vision• Develop specifics of plan using a combination of bottom up and top down approaches • Bottom up• Asset management plan and software• GIS• Equipment database (e.g. Cascade, Maximo, etc.)• Structural analysis• LIDAR study collected detailed data• Update previous engineering analysis using modern tools• Equipment inspection schedules, standards & forms• Substation equipment maintenance plans• Vegetation & Wildfire management plans• History documentation of previous repairs/ maintenanceMay 20, 2022| Pg. 9 Proposed Strategic Plan to accomplish Vision• Combined bottom up / top down approach (cont.)• Top Down – set informed goals for performance based on cost-benefit analysis• Economic dispatch studies to determine value of improved transfer capacity• ACEP study• ERO IRP process• Resource evaluations (wind, hydro, etc)• Take advantage of geographically diverse wind resources• Example: MEA’s proposed Railbelt wind resource assessment• Electrical performance studies (e.g. refresh AEA’s 2017 Railbelt transmission plan)• Transient stability limits• Electrical losses• Railbelt Reliability standardsMay 20, 2022| Pg. 10 Proposed Strategic Plan to accomplish Vision• Proposed Components of the Strategic Plan• Periodically updated vision and associated specific objectives for cost, reliability, losses, and transfer capacity.• Funding plan –• Establish a reserve fund for capital expenditures• Consider financing if appropriate• Recurring study of estimated long-term repair and replacement costs (similar to BPMC’s D.Hittle report)• Asset inventories• Condition reports for various components (structures, foundations, lightning protection, etc.) • Preventive maintenance plan• Asset management plan, data & software• Vegetation management plan • Access plan (land based)• Real time data sharing • Appendices (background information)May 20, 2022| Pg. 11 Proposed Strategic Plan to accomplish Vision• Appendices• Clearing reports • Structure inspection reports• Snow Load Monitoring System information and reports• Electrical disturbance results with root cause analysis• Agreements (selected examples)• Alaska Intertie Agreement• Douglas substation lease• Maintenance agreements with utilities• 1986 transmission services agreement (TLS-DGS)• 1984 Joint Use agreement• Property transfer history (Cantwell distribution equip)• LIDAR study results and recommendations• System PSS/E studies• Economic dispatch studies• Reliability standards (pre-ERO) • Railbelt IRPs prepared by EROMay 20, 2022| Pg. 12 Loss Reductions & Transfer Capacity Increases• With a 230kV upgrade, transfer limit increases are likely to beabout 250%.• Transmission line voltage upgrade to 230 kV will cut the losses byabout 60%May 19, 2022| Pg. 13 Next Steps• Continued collaboration between IMC, IOC, and subcommittees todevelop ensure that the approach and progress is consistent with theIMC’s expectations.• Continued development of the Strategic Plan by the IOC and itssubcommittees. For example:• Vegetation management Plan–Maintenance Subcommittee• Asset Management Plan – Maintenance Subcommittee• Refresh 2017 Railbelt transmission plan – System Studies Subcommittee• Expeditiously arrive at a formal consensus regarding the ultimate uppervoltage at which the Intertie will be operated, based on economicdispatch studies and electrical performance studies (preliminaryindications are 230kV).• Will determine constraints on modifications to existing structures to addressstructural issues.• Will determine upgrades required between Teeland and Douglas substations.• Will provide a clear direction for voltage rating of any new equipment.May 19, 2022| Pg. 14 Questions? Intertie Management Committee Meeting Operator Report May 20, 2022 1. Alaska Intertie usage report a. MWh usage – Measured at Douglas Substation GVEA MEA Total i. July – April FY22 160,142 20,812 180,954 ii. July – April FY21 149,654 18,445 168,099 iii. Delta - FY22 to FY21 7.0% 12.8% 7.6% 2. Alaska Intertie trips 3. Date Event SCADA Indication Cause 1/19/2022 AK Tie Trip A-B phase fault between Teeland and Douglas Distribution fault, CEA Relay reaching too far saw fault on MEA riser. 1/21/2022 AK Tie Trip B phase fault between Teeland and Douglas Distribution fault, CEA Relay reaching too far saw fault on MEA riser. Relay settings corrected by CEA. 1/29/2022 AK Tie Trip A phase fault between Teeland and Douglas Unknown Cause, suspected snow unloading 2/17/2022 AK Tie Trip C phase fault between Douglas and Healy Unknown Cause, suspected snow unloading 2/22/2022 AK Tie Trip A phase fault between Douglas and Healy Unknown Cause, suspected snow unloading 3/11/2022 AK Tie Trip A phase fault between Douglas and Healy Unknown Cause, suspected line loaded with snow touching trees 5/10/2022 Planned Maintenance between Teeland and Douglas 4. IOC quarterly Reliability Report a. See attached Intertie Management Committee Meeting IOC Report May 20, 2020 1. Intertie Operating Committee a. The IOC focused on updating the proposed budget prior to, during, and after the IOC meeting of May 6, 2020. This resulted in the budget that will be presented to the IMC today. i. Proposed expenditures changed to reflect current status of the marker ball project, tree clearing plans, load break switches at Cantwell, and the Healy breaker B17. ii. Administrative costs incurred by AEA were discussed and justified. iii. Billing by GVEA for electricity consumption was discussed, and GVEA’s representative expressed the opinion that it the currently bills should more logically be wrapped into GVEA’s own use, consistent with section 14 of the Alaska Intertie Agreement. iv. There was some discussion regarding the appropriate method of calculating MITCR – should it be based on the coincident demand of the ML&P and CEA service areas, or on the non-coincident demand (as was done historically). The actual cost impact is minimal. v. There was an exchange of email messages regarding the appropriate proportion of administrative costs for CEA to pay. This could be a significant change in cost allocation if CEA continues to pay ML&P share. vi. Unclear if HEA plans to participate financially in the proposed synchrophasor project. b. Cantwell distribution equipment transfer – requested a review by AEA of the status. c. Opportunities for improved utilization of Snow Load Monitoring System was discussed. d. The need to standardize methods for Inadvertent Accounting was discussed. e. Latest draft of the vegetation management plan and AEA’s suggested revisions were discussed. f. AEA’s David Lockard volunteered to coordinate efforts regarding wildfire management plan improvements. 2. Maintenance Subcommittee a. MEA sent a brief report on clearing activities. b. The vegetation management plan was updated. Next step is to integrate AEA’s comments. c. The preventative maintenance plan continues to be developed. d. Marker balls are being acquired, and scheduling of outages is in progress. Possible delays until August. e. Installation of load break transmission switches at Cantwell Substation will be coordinated with the marker ball project to minimize outage time. Minor shipping damage to switches needs repair. f. MEA plans to prioritize clearing efforts to use more otherwise unused FY22 funds. 3. Systems Studies Subcommittee a. Reported on progress toward corrective measures recommended based on the oscillation study. b. Worked toward a plan for a system-wide synchrophasor project. Received proposal from Schweitzer Engineering Labs. PART 2: EVENT SUMMARY 05/03/2022 TO01/01/2022 12/31/2022 IOC ANNUAL RELIABILITY REPORT Event Num Date/Time Duration Description Freq extreme Intertie Kenai opened opened Unit Line Trip Trip BESS Silos Load Shed Comments 1,161 01/07/2022 02:28:42 HLP ST2 Trip 59.50 X 0.0 0.0 0.01.3 1,165 01/21/2022 08:34:57 Teeland-Douglas B-Phase line fault trip. 60.63 X X 0.0 0.0 24.60.1 1,166 01/02/2022 02:12:04 NCC ST trip 59.83 X 0.0 0.0 0.00.5 1,167 01/29/2022 12:39:55 AK Intertie Trip - Teeland-Douglas A-phase fault 60.73 X X 0.0 4.9 20.80.1 1,168 01/30/2022 14:35:24 SPP 11 trip due to fuel pressure differential. 59.57 X 2.1 0.0 10.60.1 1,169 02/10/2022 17:46:31 Sullivan #9 - ramp to idle due to water flow transmitter failure. 59.75 X 0.0 0.0 16.90.0 1,170 02/16/2022 19:51:27 Sullivan #9 trip due to IGV feedback error. 59.71 X 0.0 0.0 16.50.2 1,171 02/15/2022 13:43:36 NPC GT3 Trip due to communications failure to the unit 59.77 X 0.0 0.0 25.10.8 1,172 02/17/2022 18:39:51 Douglas 1B1 Trip due to C-ground fault. 60.82 X X 6.4 19.3 24.40.0 1,173 02/22/2022 03:25:27 AK Tie Trip - Douglas-Healy loss of Bradley AGC control 60.62 X X 11.7 10.0 25.30.0 1,174 02/24/2022 02:23:59 Sullivan 10 Ramp Down and Trip (no tie outages) 59.72 X 0.0 0.0 11.10.0 1,175 03/11/2022 07:05:23 AK Intertie trip Teeland -Douglas due to A-Phase Fault 60.62 X X 8.1 6.9 25.10.1 1,176 03/27/2022 21:11:19 HLP ST2 Trip 59.40 X 10.9 0.0 16.31.0 1,177 03/12/2022 00:06:53 NPC & BESS Trip 59.48 X 9.7 10.5 16.44.6 1,178 03/28/2022 10:24:39 HLP ST2 Trip 59.64 X 0.0 1.9 16.40.8 1,179 03/29/2022 02:48:41 HLP ST2 Trip 59.55 X 0.0 0.0 9.80.7 *has sub event Event Num Date/Time Duration Description Freq extreme Intertie Kenai opened opened Unit Line Trip Trip BESS Silos Load Shed Comments 1,180 04/06/2022 23:37:09 NPC GT3 Trip (Thermocouple failure) 59.76 X 0.0 0.0 1.10.6 1,181 05/03/2022 05:47:34 NPC GT3 Trip 59.73 X 0.0 0.0 15.03.0 0.77Average Duration *has sub event Page 1 of 2 ALASKA ENERGY AUTHORITY AK INTERTIE BUDGET TO ACTUAL EXPENSES FOR THE PERIOD 07/01/2021 THROUGH 03/31/2022 REVENUE FY22 Approved Budget BUDGET % 07/01/2021 - 03/31/2022 Actuals @3/31/22 YTD Actuals as a % of Total Annual Budget OVER (UNDER) YTD Variance Revenue From Utilities AKI-GVEA 1,703,855 1,277,891 1,445,023 84.8%167,132 AKI-CEA 225,259 168,944 198,801 88.3%29,857 AKI-MEA 361,596 271,197 291,246 80.5%20,049 Total Revenue From Utilities 2,290,710 1,718,032 1,935,070 84.5%217,038 Interest/Capital Credits 100 100 Total Revenue 2,290,710 1,718,032 1,935,170 84.5%217,138 EXPENSES-OPERATING 56200 Station Expenses Golden Valley Electric AK Intertie-Substation Electricity Usage 8,000 6,000 30,675 383.4%24,675 Golden Valley Electric Total 8,000 6,000 30,675 383.4%24,675 56600 Misc Transmission Expense Alaska Energy Authority AK Intertie-Cell Phone Comm. Svc. for Wx Monitorin 12,000 9,000 9,020 75.2%20 AK Intertie-Misc Studies as needed 200,000 150,000 69,952 35.0%(80,048) Alaska Energy Authority Total 212,000 159,000 78,972 37.3%(80,028) Chugach Electric Association Chugach Electric Association Total - - - 0.0%- Golden Valley Electric AK Intertie-Private Line Telephone Service SCADA 18,000 13,500 4,167 23.2%(9,333) Golden Valley Electric Total 18,000 13,500 4,167 23.2%(9,333) Matanuska Electric Association Total - - - 0.0%- 56601 Weather Monitoring Batteries Alaska Energy Authority AK Intertie-SLMS Support and Intertie Grnd Patrol 100,000 75,000 117,339 117.3%42,339 Alaska Energy Authority Total 100,000 75,000 117,339 117.3%42,339 56700 Rents Alaska Energy Authority AK Intertie-Alaska Railroad 700 525 700 100.0%175 Alaska Energy Authority Total 700 525 700 100.0%175 Matanuska Electric Association AK Intertie-Talkeetna Storage 7,200 5,400 4,800 66.7%(600) AK Intertie-Equipment Rental - - 375 0.0%375 Matanuska Electric Association Total 7,200 5,400 5,175 71.9%(225) 57000 Maintenance of Station Equip Chugach Electric Association AK Intertie-Teeland Substation 85,000 63,750 112,216 132.0%48,466 AK Intertie-Douglas Substation Communications - - 1,742 0.0%1,742 Chugach Electric Association Total 85,000 63,750 113,958 134.1%50,208 Golden Valley Electric AK Intertie-Healy, Cantwell, Goldhill 74,340 55,755 55,625 74.8%(130) AK Intertie-SCADA Maint Healy, Cantwell, Goldhill 5,000 3,750 - 0.0%(3,750) AK Intertie-Cantwell 4S2 Switch Repair 266,000 199,500 1,681 0.6%(197,819) AK Intertie-Maint & Repaint Reactors Healy SVC Yd 80,000 60,000 7,266 9.1%(52,734) AK Intertie-Healy&Goldhill Digital Fault Recorders 90,000 67,500 51,451 57.2%(16,049) AK Intertie-Goldhill SVC Cooling 65,000 48,750 460 0.7%(48,290) Golden Valley Electric Total 580,340 435,255 116,483 20.1%(318,772) Matanuska Electric Association Matanuska Electric Association Total - - - 0.0%- Page 2 of 2 ALASKA ENERGY AUTHORITY AK INTERTIE BUDGET TO ACTUAL EXPENSES FOR THE PERIOD 07/01/2021 THROUGH 03/31/2022 REVENUE FY22 Approved Budget BUDGET % 07/01/2021 - 03/31/2022 Actuals @3/31/22 YTD Actuals as a % of Total Annual Budget OVER (UNDER) YTD Variance 57100 Maint of OH Lines Golden Valley Electric AK Intertie-Northern Maintenance 78,000 58,500 86,845 111.3%28,345 Golden Valley Electric Total 78,000 58,500 86,845 111.3%28,345 Matanuska Electric Association AK Intertie-Special Patrols (Incl Foundation Insp)5,000 3,750 599 12.0%(3,151) AK Intertie-Southern Maint. (Incl Ground Insp)200,000 150,000 62,612 31.3%(87,388) AK Intertie-Equipment Repair and Replacement 640,000 480,000 - 0.0%(480,000) Matanuska Electric Association Total 845,000 633,750 63,211 7.5%(570,539) 57102 Maint OH Lines-ROW Clearing Golden Valley Electric AK Intertie-Northern ROW Clearing 73,000 54,750 68,882 94.4%14,132 Golden Valley Electric Total 73,000 54,750 68,882 94.4%14,132 Matanuska Electric Association AK Intertie-Southern ROW Clearing 150,000 112,500 134,945 90.0%22,445 Matanuska Electric Association Total 150,000 112,500 134,945 90.0%22,445 58302 Operating Committee Exp-Legal Alaska Energy Authority AK Intertie Operating - - - 0.0%- AK Intertie-IMC Admin Cost (Audit, meeting, legal)- - - 0.0%- Alaska Energy Authority Total - - - 0.0%- 58306 Misc Admin Alaska Energy Authority AK Intertie Operating - - - 0.0%- AK Intertie-IMC Admin Cost (Audit, meeting, legal)17,500 13,125 15,645 89.4%2,520 Alaska Energy Authority Total 17,500 13,125 15,645 89.4%2,520 58307 Professional consultants Alaska Energy Authority AK Intertie-IMC Admin Cost (Audit, meeting, legal)- - - 0.0%- AK Intertie-Insurance - - - 0.0%- Alaska Energy Authority Total - - - 0.0%- 58401 Insurance Premiums Alaska Energy Authority AK Intertie-Insurance 21,517 16,138 21,488 99.9%5,350 Alaska Energy Authority Total 21,517 16,138 21,488 99.9%5,350 Matanuska Electric Association AK Intertie-Insurance 14,133 10,600 - 0.0%(10,600) Matanuska Electric Association Total 14,133 10,600 - 0.0%(10,600) Total Station Expenses 2,210,390 1,657,793 858,485 38.8%(799,308) Total Operating Expenses 2,210,390 1,657,793 858,485 38.8%(799,308) EXPENSES-AEA ADMINISTRATION Total Admin total 100,000 75,000 162,363 162.4%122,298 Total AEA Administration Expenses 100,000 75,000 162,363 162.4%122,298 Total Expenses 2,310,390 1,732,793 1,020,848 44.2%(677,010) SURPLUS (SHORTAGE)(19,680)(14,761)914,322 894,148