HomeMy WebLinkAboutBradley Lake True Up for water year 1994Ping System (BLOF MASTER BLOFI LOG
Year |Code |Date Key Word From Description
1993 [14-00 |01/07/93 |Station Service AEA BLHP Exciter Fan Power Source
1993 [14-00 [12/16/93 |Governor AEA Governor Service
1994 |14-00 [01/03/94 |Tests Mobil Mobil Trend Analysis Program BLHP Turbine
1993 |14-00 |01/13/94 |Station Service AEA BL Exciter Fan Power Source
1994 {14-00 [01/17/94 |Governor AEA BL Governor Preventative Maintenance Guide
1994 |14-00 [01/24/94 |AMMS System SWEC Automated Maintenance Management System AEA
1994 |14-00 [01/27/94 |O&M HEA Bradley O&M Mobilization
1994 {14-00 [02/07/94 |Governor Woodward BL Governor Preventative Maintenance Guide
1994 {14-00 [02/08/94 |O&M SWEC Service Water System Analysis /Cooling Water System
1994 |14-00 |03/23/94 |Governor HEA BLHP Identification of Governor Oil Contamination
1994 [14-00 [04/08/94 |Tests AEA Protective Relay Calibration and Testing
1994 |14-00 [04/14/94 |Control Circuits HEA Plant Automatic Shutdown Following Gate Closure /Control Circuits
1994 {14-00 [04/14/94 {Allocation HEA BLHP Initial Energy Allocations -WY 1994-95
1994 114-00 |04/18/94 |O&M AEA BL Reporting Requirements
1994 {14-00 [04/29/94 |Allocation HEA Revised Bradley Initial Allocations
1994 {14-00 [05/06/94 |Governor HEA Governor Oil Contamination
1994 |14-00 [05/19/94 |Governor AEA BLHP Governor Oil Contamination
1994 {14-00 [06/08/94 [Allocation HEA True-up of Allocation/Usage for Water Year 1993-94
1994 [14-00 [06/27/94 |Control Circuits HEA Bradley Junction Changes
1994 |14-00 [06/27/94 |Control Circuits HEA HEA Auto-Sync Equipment
1994 {14-00 [06/28/94 |Governor HEA BHP Governor Oil Contamination Problem
1994 |14-00 [07/11/94 |Control Circuits HEA HEA Auto-Sync Equipment
1994 |14-00 |10/03/94 |Governor HEA Bradley Operating Statement for September 1994
1994 14-00 11/09/94 Tests SWEC Station Service Relay Coordination BLHP
Master BLOFI Log.xlsBLOFI 1of1 3/13/2003
H mer Electric Ass triation,Inc.
CORPORATE OFFICE Central Peninsula Service Center
3977 Lake Street 280 Airport Way
Homer,Alaska 99603-7680 Pouch 5280
Phone (907)235-8167 Kenai,Alaska 99611-5280
FAX (907)235-3313 Phone (907)283-5831
FAX (907)283-7122
June 8,1994
Alaska ltndustrial Develorrnact
and Export Authority
Stan Sieczkowski
AEA
480 W.Tudor Rd.
Anchorage,AK 99503-6690
Dear Stan:
RE: True-up of Allocation/Usage for Water Year 1993-94
Please reference the attached information showing the true-up calculations for Water
Year 1993-94 and the allocations and total energy available for Water Year 1994-95.
The adjustment amount to be carried forward is 8,322 Mwh.We will be monitoring
the inflows and schedules in June due to the possibility of spill later in the season.
Please advise if anything further is required.
Sincerely yours,
HOMER ELECTRIC ASSOCIATION,INC.
4.C.Werth,
S.C.Matthews
Major Projects Engineer
L060794A.SCM/js
CC:Norm Story
Mike Yerkes
Dave Burlingame,CEA
Brad Evans,GVEA
Doug Hall,ML&P
BRADLEY LAKE HYDROELECTRIC PROJECT
ALLOCATIONS FOR WATER YEAR 1994-95
Date GVEA
Jun-93 1,658
Jul-93 7,415
Aug-93 8,154
Sep-93 1,696
Oct-93 7,351
Nov-92 5,663
Dec-93 2,557
Jan-94 5,036
Feb-94 5,317
Mar-94 5,490
Apr-94 5,468
May-94 8,630
TOTAL DELIVERED 64,435
ALLOCATION %16.9%
ALLOC.SHARE 81,120
POND WY92-93 6,297
TOTALS 87,417
REMAIN BALANCE 22,982
POND WY92-93 6,297
POND WY93-94 16,685
TRUE-UP WY93-94 1,406
END OF YR.BAL.24,388
WATER YEAR 1994-95
ALLOCATION %16.9%
INITIAL ALLOC.62,355
POND FOR 94-95 =22,982
93-94 CARRYOVER __1,406
TOTAL ENERGY
AVAILABLE IN
WY 94-95 86,743
H209495.XLW6/6/941:54 PM
TRUE-UP FOR WATER YEAR 1993-94
ML&P
6,479
10,912
18,160
20,188
15,338
7,691
8,292
11,278
3,597
8,099
7,252
12,239
129,525
25.9%
124,320
4,877
129,197
-328
4,877
-5,205
2,155
1,827
25.9%
95,561
-328
2,155
97,389
Energy (MWH)
HEA CEA MEA SES
6,949 17,604 7,975 563
7,424 18806 8519 601
6,157 15,597 7,065 498
4,414 11,181 5,065 357
3,744 9,484 4,297 303
2,164 5,481 2,483 175
1,789 4,531 2,053 145
3,092 7,832 3,548 250
3,313 8378 3,819 274
3,420 8650 3,943 283
3,407 8615 3,928 282
3,469 9,378 3,759 312
49,342 125,537 56,454 4,043
12.0%30.4%13.8%1.0%
57,600 145,920 66,240 4,800
7,929 20,086 9,099 642
65,529 166,006 75,339 5,442
16,187 40,469 18,885 1,399
7,929 20,086 9,099 642
8,258 20,383 9,786 757
999 2,530 1,148 83
17,186 42,999 20,033 1,482
12.0%30.4%13.8%1.0%
44,276 112,165 50,917 3,690
16,187 40,469 18,885 1,399
999 2,530 1,148 83
61,461 155,164 70,950 5,172
TOTAL
41,228
53,677
55,631
42,901
40,517
23,657
19,367
31,036
24,698
29,885
28,952
37,787
429,336
100.0%
480,000
48,930
528,930
99,594
48,930
50,664
8,322
107,916
100.0%
368,963
99,594
8,322
476,879
BRADLEY LAKE HYDROELECTRIC PROJECT
Calculation of pond and true-up at end of WY93-94
Storage
Ending Elevation 1128.20 371,234
Minimum Elevation 1080.00 263,318
Remainder at end of year 107,916
Allocated 480,000
Used 429,336
Pond 50,664 50,664
Remainder 57,252
Pond from WY92-93 48,930
True-up end of WY93-94 8,322
H209495.XLW6/6/942:22 PM
H mer Electric Ass siation,Inc.
CORPORATE OFFICE Central Peninsula Service Center
3977 Lake Street 280 Airport Way
Homer,Alaska 99603-7680 Pouch 5280
Phone (907)235-8167 Kenai,Alaska 99611-5280
FAX (907)235-3313 Phone (907)283-5831
FAX (907)283-7122
April 29,1994
ECEIVEStanSieczkowski
AIDEA MAY $3 1994480W.Tudor Rd.
Anchorage,AK 99503-6690 Alaska Industrial DevelopmentandExportAuthority
Dear Stan:
RE:Revised Bradley Initial Allocations
As a result of a meeting with the dispatchers on April 26,1994,I am making some
additions and revisions to the initial allocations.This will supersede my correspondence
of April 14,1994.Please reference tables A (Revised)and B for revised information.
The most significant change is the initial allocation amount to 368,963 Mwh total based
on the March NWS forecast of inflows.In addition,I calculated the estimated true-up
of 8,505 Mwh at the end of the year and added it to the amount available.This amount
of course will be superseded by the actual true-up after June 1,1994.The net result of
these changes is that there will be available 482,146 Mwh for the new water year.
Again,I recommend we draw down some of the pond early in the year to avoid spill.
Please request all participants to return initial schedules as soon as possible so that the
final model runs can be done.
Sincerely yours,
HOMER ELECTRIC ASSOCIATION,INC.
4G.Wearthce,
S.C.Matthews
Major Projects Engineer
REVISED.SCM/js
Cc:Norm Story
Dave Fair
Dave Burlingame,CEA
Doug Hall,AML&P
Brad Evans,GVEA
TABLE A (REVISED)
BRADLEY LAKE HYDROELECTRIC PROJECT
INITIAL ALLOCATIONS FOR WATER YEAR 1994-95
Energy (MWH)
Date GVEA|ML&P HEA CEA MEA SES |TOTAL
Jun-93 1,658;6,479)6,949}17,604}7,975 563]41,228
Jul-93 7,415|10,912]7,424]18,806)8,519 601|53,677
Aug-93 8,154;18,160)6,157}15,597)7,065 498!55,631
Sep-93 1,696}20,188);4,414]11,181]5,065 357|42,901
Oct-93 7,351)15,338]3,744)9,484)4,297 303}40,517
Nov-92 5,663}7,691 2,164,5,481)2,483 175|23,657
Dec-93 2,557}8,292}1,789)4,531}2,053 145|19,367
Jan-94 5,036}11,278)3,092;7,832]3,548 250|31,036
Feb-94 5,317}3,597)3,313}8,378)3,819 274|24,698
Mar-94 5,490}8,099)3,420}8650)3,943 283|29,885
Apr-94/Estimate}3,170)7,200}2,251 5,703)2,589 187|21,100
May-94/Estimate)6,842;11,200}4,858)12,308)5,587 405|41,200
THROUGH MAR |_50,337}110,034}42,466]107,544}48,767}3,449]362,597
TOTAL i 60,349}128,434)49,575}125,555)56,943}4,041)424,897
ALLOCATION %16.9%|25.9%]12.0%}30.4%}13.8%1.0%|100.0%
ALLOC.SHARE 81,120)124,320|57,600)145,920}66,240}4,800}480,000
POND WY92-93 6,297}4,877;7,929)20,086)9,099 642|48,930
TOTALS 87,417|129,197|65,529}166,006}75,339)5,442)528,930
REMAIN BALANC}27,616}1,289)15,865;40,212}18,304}1,392]104,678
POND WY92-93 6,297|4,877|7,929}20,086]9,099 642|48,930
POND WY$93-94 20,771;-4,114)8,025;20,365)9,297 759;55,103
EST.TRUE-UP 1,437}2,203}1,021 2,586}1,174 85}8,505
END OF BAL.|28,505)2,966)16,975}43,037}19,570;1,486}112,538
WATER YEAR 1994-95
ALLOCATION %|16.9%{25.9%}12.0%;30.4%)13.8%1.0%|100.0%
INITIAL ALLOC.|62,355}95,561;44,276)112,165}50,917;3,690;368,963
POND FOR 94-95}27,616}1,289)15,865}40,212}18,304}1,392)104,678
93-94 CARRYOV 1,437;2,203}1,021 2,586]1,174 85}8,505
TOTAL ENERGY
AVAILABLE IN
WY 94-95 91,408]99,053}61,161]154,962;70,395]5,167);482,146
TABLE B
Calculation of estimated pond and true-up at end of WY93-94
Storage
Estimated Ending Elevation |1129.80 375,856
Minimum Elevation 1080.00 263,318
Remainder at end of year 112,538
Allocated 480,000
Estimated use 424,897
Pond |55,103 55,103
Remainder 57,435
Pond from WY92-93 48,930
Estimated true-up end of WY93-94 8,505
H mer Electric Ass tiation,Inc.
CORPORATE OFFICE Central Peninsula Service Center
3977 Lake Street 280 Airport Way
Homer,Alaska 99603-7680 Pouch 5280
Phone (907)235-8167 Kenai,Alaska 99611-5280
FAX (907)235-3313 Phone (907)283-5831
'FAX (907)283-7122EGEIVEiCle
April 14,1994APR181924
Alaska industria!Development
and Expert Authority
Stan Sieczkowski
AIDEA
480 W.Tudor Rd.
Anchorage,AK 99503-6690
Dear Stan:
RE:Bradley Lake Hydroelectric Project
Initial Energy Allocations -WY 1994-95
Attached is information for subject allocations in compliance with the Allocation and SchedulingProcedures,Section 4.The allocations have been developed based upon the latest snowpack
information and in consultation with the National Weather Service (NWS)for their forecasted
flows.The estimate is for 328,000 MWH to be produced from the inflow as presently
forecasted by the NWS.This is based on a starting elevation of 1080 and an ending elevation
of 1080.Based upon the present utility estimates of utilization,a Pondage of 104,678 MWH
and carryover of 19,322 MWH is forecasted for a total energy availability for the year of
452,000 MWH to draw the reservoir down to a level of 1080.
It appears that we will be entering the new water year with a large pond and a forecasted lake
level of 1129.8 ft.Due to this high level and above normal snowpack there is a high likelihood
of spill in October unless we make a concerted effort to draw it down during the summer
months.To avoid spiil from our estimated starting elevation of 1129.8 ft.,we have toe schedule
a minimum of 90,000 MWH through August and a minimum of 120,000 MWH through
September and 150,000 MWH through October.This assumes the inflows follow the NWS
projections.If we have a high water year same as 1993,these figures become 150,000 MWH
through August,200,000 MWH through September and 245,000 MWH through October.As
can be seen,this is quite a range.The 1993 summer in this area was warm,sunny and rain in
August.The 1994 summer could be the same and we have an above normal snowpack.My
recommendation is an initial minimum schedule of 130,000 MWH through August and 180,000
through September,with further adjustments from these depending on history.I would also
recommend a O&D Subcommittee teleconference at an early date to discuss this situation before
we do the final run of the model.
Mr.Stan Sieczkowski
April 14,1994
Page 2
The attached Table A reflects the 1993-94 actual usage through March and estimates for the
1994-95 water year.Please review the data and schedule project shares of the Total Energy
Available in WY 94-95 as listed on the last line.Return the data at your earliest convenience
so that the final run of the model can be made to assure no conflicts.The exact amounts of
Pondage and Carry Over will be corrected at the June 1 true-up.
Sincerely yours,
HOMER ELECTRIC ASSOCIATION,INC.
4.0,WaereZicey
S.C.Matthews
Major Projects Engineer
INITIAL.SCM/js
CC:Norm Story
Dave Fair
Bob Ditton
Mike Yerkes
Dave Burlingame,CEA
Brad Evans,GVEA
Doug Hall,AML&P
Date GVEA
Jun-93 1,658
Jul-93 7,415
Aug-93 8,154
Sep-93 1,696
Oct-93 7,351
Nov-92 5,663
Dec-93 2,557
Jan-94 5,036
Feb-94 5,317
Mar-94 5,490
Apr-94 Estimate 3,170
May-94 Estimate 6,842
THROUGH MARCH 50,337
TOTAL DELIVERED 60,349
ALLOCATION %16.9%
ALLOC.SHARE 81,120
PONDED WY93-94 6,297
TOTALS 87,417
REMAIN BALANCE 27,616
WATER YEAR 1994-95
ALLOCATION%16.9%
ALLOCATED MWH 55,432
POND FOR 94-95 27,616
93-94 CARRYOVER 3,265
TOTAL ENERGY
AVAILABLE IN
WY 94-95 86,313
H209495.XLW4/13/949:15 AM
TABLE A
BRADLEY LAKE HYDROELECTRIC PROJECT
INITIAL ALLOCATIONS FOR WATER YEAR 1994-95
ML&P
6,479
10,912
18,160
20,188
15,338
7,691
8,292
11,278
3,597
8,099
7,200
11,200
110,034
128,434
25.9%
124,320
4,877
129,197
1,289
25.9%
84,952
1,289
5,004
91,245
Energy (MWH)
HEA
6,949
7,424
6,157
4,414
3,744
2,164
1,789
3,092
3,313
3,420
2,251
4,858
42,466
49,575
12.0%
57,600
7,929
65,529
15,865
12.0%
39,360
15,865
2,319
57,544
CEA
17,604
18,806
15,597
11,181
9,484
5,481
4,531
7,832
8,378
8,650
5,703
12,308
107,544
125,555
30.4%
145,920
20,086
166,006
40,212
30.4%
99,712
40,212
5,874
145,798
MEA
7,975
8,519
7,065
5,065
4,297
2,483
2,053
3,548
3,819
3,943
2,589
5,587
48,767
56,943
13.8%
66,240
9,099
75,339
18,304
13.8%
45,264
18,304
2,666
66,234
SES
563
601
498
357
303
175
145
250
274
283
187
405
3,449
4,041
1.0%
4,800
642
5,442
1,392
1.0%
3,280
1,392
193
4,865
TOTAL
41,228
53,677
55,631
42,901
40,517
23,657
19,367
31,036
24,698
29,885
21,100
41,200
362,597
424,897
100.0%
480,000
48,930
528,930
104,678
100.0%
328,000
104,678
19,322
452,000
Chart1
BRADLEY LAKE PROJECT
ELEVATION (FT.)vs TIME
WATER YEAR 1994-91,200.00
1,180.00 ;
1,160.00 +-_=pSooOoO1-ACTUAL ELEV.
----MAX.ELEV.
-----1972 ELEV.
s-++°-PROJ.ELEV.ELEVATION-_=No°Q3SL1,100.00 4
1,080.00 +
1,060.00
JUN JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN
MONTH
Page 1