HomeMy WebLinkAbout2025-07-25 IMC Agenda and docs INTERTIE MANAGEMENT COMMITTEE (IMC) REGULAR MEETING
July 25, 2025
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. AGENDA APPROVAL
5. PUBLIC COMMENTS
6. APPROVAL OF PRIOR MINUTES – June 20, 2025
7. NEW BUSINESS
A. Annual Meeting and Election of Officers
8. OLD BUSINESS
A. 616 Structure Update
B. Snow Load Resiliency and Synchrophasor Grants Update
9. COMMITTEE REPORTS
A. Budget to Actuals Mark Ziesmer
B. IOC Report Mike Miller
C. Operator Report Mike Miller
10. MEMBERS COMMENTS
11. NEXT MEETING DATE – September 19, 2025 at 9:00 am (new date)
12. ADJOURNMENT
Alaska Energy Authority
AK Intertie Budget to Actual Revenues and Expenses
07/01/2024 to 06/30/2025
DRAFT
Page 1 of 4
FY25 Amended
Budget
Amended
Budget
07/01/2024 -
06/30/2025 Actuals
YTD Actuals as a
% of Total
Annual Budget
Over (Under) YTD
Variance
Revenue From Utilities
AKI-GVEA 3,061,282 3,061,282 2,654,471 87%(406,812)
AKI-CEA 462,878 462,878 462,878 100%-
AKI-MEA 821,110 821,110 803,910 98%(17,200)
Total Revenue From Utilities 4,345,270 4,345,270 3,921,259 90%(424,012)
Interest - - 118,200 0% 118,200
Other - - - 0%-
Total Revenues 4,345,270 4,345,270 4,039,459 93%(305,812)
Total Revenues 4,345,270 4,345,270 4,039,459 93%(305,812)
56600 Misc Transmission Expense
Alaska Energy Authority
AK Intertie-Cell Phone Comm. Svc. for Wx Monitorng 13,000 13,000 6,431 49%(6,569)
AK Intertie-Miscellaneous Studies as Needed 555,000 555,000 134,247 24%(420,753)
Alaska Energy Authority Total 568,000 568,000 140,678 25%(427,322)
Golden Valley Electric
AK Intertie-Private Line Telephone Service SCADA 6,000 6,000 13,240 221%7,240
Golden Valley Electric Total 6,000 6,000 13,240 221%7,240
56601 Weather Monitoring Batteries
Alaska Energy Authority
AK Intertie-SLMS Support & Intertie Ground Patrol 175,000 175,000 18,971 11%(156,029)
Alaska Energy Authority Total 175,000 175,000 18,971 11%(156,029)
56700 Rents
Alaska Energy Authority
AK Intertie-Alaska Railroad 1,000 1,000 1,000 100%-
Alaska Energy Authority Total 1,000 1,000 1,000 100%-
Matanuska Electric Association
AK Intertie-Talkeetna Storage 7,200 7,200 7,200 100%-
Matanuska Electric Association Total 7,200 7,200 7,200 100%-
56900 Maintenance of Structures
Matanuska Electric Association
AK Intertie-Maintenance of Structures 150,000 150,000 - 0%(150,000)
Matanuska Electric Association Total 150,000 150,000 - 0%(150,000)
57000 Maintenance of Station Equip
Chugach Electric Association
AK Intertie-Teeland Substation 175,000 175,000 86,953 50%(88,047)
AK Intertie-Douglas Substation Communications 2,400 2,400 4,108 171%1,708
Chugach Electric Association Total 177,400 177,400 91,061 51%(86,339)
Golden Valley Electric
AK Intertie-GVEA SVC Project 120,000 120,000 3,693 3%(116,307)
AK Intertie-Healy, Cantwell, Goldhill 64,500 64,500 37,514 58%(26,986)
AK Intertie-Cantwell Instl Brkrs or Load Brkr Swch 650,000 650,000 682,125 105%32,125
AK Intertie-Capacitor Spares - - 38,499 0%38,499
AK Intertie-HLSB Sync PT Replacement 25,000 25,000 94,455 378%69,455
AK Intertie-Replace Healy Substation Breaker 350,000 350,000 336,527 96%(13,473)
Golden Valley Electric Total 1,209,500 1,209,500 1,192,813 99%(16,687)
Matanuska Electric Association
AK Intertie-Douglas Substation 325,000 325,000 286,046 88%(38,954)
AK Intertie-Special Patrols (Incl Foundation Insp)- - 25,077 0%25,077
Matanuska Electric Association Total 325,000 325,000 311,122 96%(13,878)
57100 Maint of OH Lines
Golden Valley Electric
ALASKA ENERGY AUTHORITY
AK INTERTIE BUDGET TO ACTUAL REVENUE AND EXPENSES
FOR THE PERIOD 07/01/2024 THROUGH 06/30/2025
Page 2 of 4
FY25 Amended
Budget
Amended
Budget
07/01/2024 -
06/30/2025 Actuals
YTD Actuals as a
% of Total
Annual Budget
Over (Under) YTD
Variance
ALASKA ENERGY AUTHORITY
AK INTERTIE BUDGET TO ACTUAL REVENUE AND EXPENSES
FOR THE PERIOD 07/01/2024 THROUGH 06/30/2025
AK Intertie-Northern Maintenance - - 86,109 0%86,109
AK Intertie-Landing Pads 75,000 75,000 - 0%(75,000)
AK Intertie-Special Patrols (Incl Foundation Insp)80,000 80,000 - 0%(80,000)
Golden Valley Electric Total 155,000 155,000 86,109 56%(68,891)
Matanuska Electric Association
AK Intertie-Special Patrols (Incl Foundation Insp)15,000 15,000 19,982 133%4,982
AK Intertie-Southern Maint. (Incl Ground Insp)140,000 140,000 - 0%(140,000)
AK Intertie-Equipment Repair & Replacement - - 23,023 0%23,023
Matanuska Electric Association Total 155,000 155,000 43,005 28%(111,995)
57102 Maint OH Lines-ROW Clearing
Golden Valley Electric
AK Intertie-Northern ROW Clearing 550,000 550,000 581,075 106%31,075
Golden Valley Electric Total 550,000 550,000 581,075 106%31,075
Matanuska Electric Association
AK Intertie-Southern ROW Clearing 300,000 300,000 50,220 17%(249,780)
AK Intertie-Southern ROW Remote Sensing 10,000 10,000 5,561 56%(4,439)
Matanuska Electric Association Total 310,000 310,000 55,780 18%(254,220)
58306 Misc Admin
Alaska Energy Authority
AK Intertie-IMC Admin Cost (Audit, Meeting, Legal)20,000 20,000 12,652 63%(7,348)
Alaska Energy Authority Total 20,000 20,000 12,652 63%(7,348)
58401 Insurance Premiums
Alaska Energy Authority
AK Intertie-Insurance 22,200 22,200 26,418 119%4,218
Alaska Energy Authority Total 22,200 22,200 26,418 119%4,218
Matanuska Electric Association
AK Intertie-Insurance 14,800 14,800 22,235 150%7,435
Matanuska Electric Association Total 14,800 14,800 22,235 150%7,435
Total Total Expense 3,846,100 3,846,100 2,603,359 68%(1,242,741)
Total Operating Expenses 3,846,100 3,846,100 2,603,359 68%(1,242,741)
71001 Total Expense, Budget
Alaska Energy Authority
Administrative Support Services 250,000 250,000 331,053 132%81,053
Alaska Energy Authority Total 250,000 250,000 331,053 132%81,053
Total Total Expense 250,000 250,000 331,053 132%81,053
Total AEA Administration Expenses 250,000 250,000 331,053 132%81,053
Total Expenses 4,096,100 4,096,100 2,934,412 72%(1,161,688)
Surplus (Shortage)249,170 249,170 1,105,047 443%855,876
Page 3 of 4
Alaska Intertie FY25 Budget to Actuals Status Report for the Period 07/01/2024 through 06/30/2025
Budgeted Usage Actual Usage to Date
GVEA MEA CEA TOTAL GVEA MEA CEA TOTAL
MONTH MWH MWH MWH MWH MONTH MWH MWH MWH MWH
Jul 12,275 2,187 - 14,462 Jul 9,839 2,309 - 12,148
Aug 14,077 2,295 - 16,372 Aug 8,590 2,300 - 10,890
Sep 14,766 2,210 - 16,976 Sep 16,901 2,125 - 19,026
Oct 27,634 2,165 - 29,799 Oct 21,194 2,011 - 23,205
Nov 27,147 2,339 - 29,486 Nov 21,209 2,122 - 23,331
Dec 26,405 2,633 - 29,038 Dec 19,086 2,312 - 21,398
Jan 8,460 2,458 - 10,918 Jan 9,015 2,207 - 11,222
Feb - 2,261 - 2,261 Feb 308 2,175 - 2,483
Mar 5,060 2,466 - 7,526 Mar 4,303 2,162 - 6,465
Apr 5,310 2,258 - 7,568 Apr 4,932 2,046 - 6,978
May 4,060 2,321 - 6,381 May 6,980 2,129 - 9,109
Jun 4,060 1,935 - 5,995 Jun 2,767 2,609 - 5,376
TOTAL 149,253 27,527 - 176,780 TOTAL 125,124 26,507 - 151,631
INTERTIE PROJECTED ENERGY USAGE TO DATE (MWH)176,780 INTERTIE ACTUAL ENERGY USAGE TO DATE (MWH) 151,631
Budgeted Operating Costs for the Period 3,846,100$ Actual Operating Costs for the Period 2,603,359$
(based on amended budget)
Budgeted Usage Revenue for the Period 2,980,510$ Actual (Billed) Usage Revenue for the Period 2,556,499$
(budgeted rate * projected usage)(budgeted rate * actual usage)
Estimated Budgeted Energy Rate per MWH 18.17$
(based on budgeted costs and usage)
Annual Budgeted Energy Rate (Billed Rate)16.86$ Projected Actual Energy Rate per MWH 14.34$
(based on minimum contract value)(based on actual costs and usage)
Page 4 of 4
Intertie Management Committee Meeting
IOC Report
July 25, 2025
1. Intertie Operating Committee
a. Repairs to structure 616 are tentatively scheduled for August. This schedule is based on
the material lead times. Materials should have arrived in Anchorage the week of July
7th. Funding for the repair is included in the FY26 budget.
b. The Douglas control enclosure foundation repair is in construction. Pile driving efforts
were successful and the enclosure was set on the new foundation the week of July 14th.
The station was put back in service on July 18th.
c. The Committee discussed the possibility of coordinate with SOA to be more efficient
with communications for the Alaska Intertie. The intention would be to explore
leveraging SOA communications infrastructure in ways that would be more cost efficient
than the current communications utilized by the Alaska Intertie participants. This effort
will be an assignment for the SCADA/Telecommunications subcommittee to follow up
on.
2. System Studies Subcommittee
a. Preliminary results are under review by the SSS for an impact study that focuses on
upgrading the Kenai to Anchorage and Anchorage to Healy transmission lines to 230 kV.
The original scope of work has been studied and they have begun analysis including a
second parallel intertie circuit as requested in a previous change order. Those findings
are anticipated for October.
b. The SSS has commissioned a study to analyze the impact of a high penetration of
inverter base resources on the Railbelt. The study is underway and the hope is to have
some preliminary results by the end of July.
c. Grant funding for the Synchrophasor and snow unloading projects is awaiting grant
contracts for review. GVEA will generate a MOU detailing cost sharing for the
Synchrophasor project once the grant contract has been reviewed. Both projects will
kickoff once funding is available.
d. GVEA is creating a RFP for a Railbelt EMT model. The intent is to release an RFP and
gather bids in time to evaluate including this project in the FY27 Budget.
3. Relay, Protection, & Control Subcommittee
a. The committee plans to review and determine what is needed to provide GVEA remote
access to Douglas after the Douglas control enclosure foundation repair is completed.
4. SCADA/Telecommunications Subcommittee
a. Representatives from each utility are being solicited to provide their interest in
establishing a backup GPS time system.
5. Operations, Maintenance, and Scheduling Subcommittee
a. Tony Zellers will be routing a mutual aid agreement to the utility CEOs for signature
some time this year.
b. The Operations, Maintenance, and Scheduling subcommittee was tasked with reviewing
the CTs and revenue metering for the Alaska Intertie. There is interest at the IOC in
identifying any locations that may be deficient in metering infrastructure.
Intertie Management Committee Meeting
Operator Report
July 25, 2025
1. Alaska Intertie usage report
a. MWh usage – Measured at Douglas Substation, YTD
GVEA MEA Total
EOFY25 125,124 26,507 151,631
EOFY24 270,743 26,792 297,535
Delta – FY25 to FY 24 (-53.8%) (-1.1%) (-49.0%)
2. Alaska Intertie trips to report
There were no trips of the Alaska Intertie in the months of June.
3. IOC Quarterly Reliability Report
For generation trips or transmission line trips where the loss of load is known, the Railbelt-wide
frequency response is calculated. The magnitude of the tripped power and the change in frequency
from the pre-trip value to the peak or nadir are used to calculate the MW/0.1Hz value often known as
‘Beta’. Chugach has calculated the Beta for several events and the table of the results is provided below.
Events without data for the MW magnitude of the trip were excluded, as were events that did not cause
a frequency deviation greater than 0.2 Hz.
Event Date Time MW Pre-Trip High /Low Freq Resp
Tripped Freq (Hz) Freq (Hz)
(MW/0.1Hz)
AEP ST5 Trip 6/10/2025 18:38:50 17.2 60.03 59.78 7