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Home My WebLink About2025-02-14 IMC Agenda and docs INTERTIE MANAGEMENT COMMITTEE (IMC) REGULAR MEETING February 14, 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 – January 17, 2025 7. NEW BUSINESS A. Avalanche damage – Structure 616 B. FY26 Budget i. Schedule ii. Potential projects 8. OLD BUSINESS A. Wildfire Mitigation Grant IMC Letter of Support 9. COMMITTEE REPORTS A. Budget to Actuals Mark Ziesmer B. IOC Report Jon Sinclair C. Operator Report Russell Thornton 10. MEMBERS COMMENTS 11. NEXT MEETING DATE – Special Meeting – February 18, 2025 at 8:30 am 12. ADJOURNMENT Alaska Energy Authority AK Intertie Budget to Actual Revenues and Expenses 07/01/2024 to 12/31/2024 Page 1 of 4 FY25 Approved Budget BUDGET 07/01/2024 - 12/31/2024 Actuals YTD Actuals as a % of Total Annual Budget OVER (UNDER) YTD Variance Revenue From Utilities AKI-GVEA 2,838,837 1,974,694 1,641,366 58%(333,328) AKI-CEA 431,626 300,792 300,792 70%- AKI-MEA 695,903 385,895 429,442 62%43,548 Total Revenue From Utilities 3,966,365 2,661,381 2,371,600 60%(289,780) Interest - - 81,092 0%81,092 Total Revenues 3,966,365 2,661,381 2,452,692 62%(208,688) Total Revenues 3,966,365 2,661,381 2,452,692 62%(208,688) 56600 Misc Transmission Expense Alaska Energy Authority AK Intertie-Cell Phone Comm. Svc. for Wx Monitorng 13,000 6,500 5,001 38%(1,499) AK Intertie-Miscellaneous Studies as Needed 515,000 257,500 7,500 1%(250,000) Alaska Energy Authority Total 528,000 264,000 12,501 2%(251,499) Golden Valley Electric AK Intertie-Private Line Telephone Service SCADA 6,000 3,000 - 0%(3,000) Golden Valley Electric Total 6,000 3,000 - 0%(3,000) 56601 Weather Monitoring Batteries Alaska Energy Authority AK Intertie-SLMS Support & Intertie Ground Patrol 175,000 87,500 - 0%(87,500) Alaska Energy Authority Total 175,000 87,500 - 0%(87,500) 56700 Rents Alaska Energy Authority AK Intertie-Alaska Railroad 1,000 500 1,000 100%500 Alaska Energy Authority Total 1,000 500 1,000 100%500 Matanuska Electric Association AK Intertie-Talkeetna Storage 7,200 3,600 3,600 50%- Matanuska Electric Association Total 7,200 3,600 3,600 50%- 56900 Maintenance of Structures Matanuska Electric Association AK Intertie-Maintenance of Structures 550,000 275,000 - 0%(275,000) Matanuska Electric Association Total 550,000 275,000 - 0%(275,000) 57000 Maintenance of Station Equip Chugach Electric Association AK Intertie-Teeland Substation 175,000 87,500 60,202 34%(27,298) AK Intertie-Douglas Substation Communications 2,400 1,200 1,578 66%378 Chugach Electric Association Total 177,400 88,700 61,781 35%(26,919) Golden Valley Electric AK Intertie-GVEA SVC Project 50,000 25,000 - 0%(25,000) AK Intertie-Healy, Cantwell, Goldhill 64,500 32,250 13,100 20%(19,150) AK Intertie-Cantwell 4S2 Switch Repair 306,000 153,000 4,084 1%(148,916) AK Intertie-Capacitor Spares - - 38,499 0%38,499 AK Intertie-HLSB Sync PT Replacement 25,000 12,500 - 0%(12,500) AK Intertie-Replace Healy Substation Breaker 350,000 175,000 285,736 82%110,736 Golden Valley Electric Total 795,500 397,750 341,419 43%(56,331) Matanuska Electric Association AK Intertie-Douglas Substation 25,000 12,500 5,807 23%(6,693) Matanuska Electric Association Total 25,000 12,500 5,807 23%(6,693) 57100 Maint of OH Lines Golden Valley Electric AK Intertie-Northern Maintenance - - 50,058 0%50,058 AK Intertie-Landing Pads 75,000 37,500 - 0%(37,500) ALASKA ENERGY AUTHORITY AK INTERTIE BUDGET TO ACTUAL REVENUE AND EXPENSES FOR THE PERIOD 07/01/2024 THROUGH 12/31/2024 Page 2 of 4 FY25 Approved Budget BUDGET 07/01/2024 - 12/31/2024 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 12/31/2024 AK Intertie-Special Patrols (Incl Foundation Insp) 80,000 40,000 - 0%(40,000) Golden Valley Electric Total 155,000 77,500 50,058 32%(27,442) Matanuska Electric Association AK Intertie-Special Patrols (Incl Foundation Insp) 15,000 7,500 19,982 133%12,482 AK Intertie-Southern Maint. (Incl Ground Insp) 140,000 70,000 - 0%(70,000) Matanuska Electric Association Total 155,000 77,500 19,982 13%(57,518) 57102 Maint OH Lines-ROW Clearing Golden Valley Electric AK Intertie-Northern ROW Clearing 550,000 275,000 33,148 6%(241,852) Golden Valley Electric Total 550,000 275,000 33,148 6%(241,852) Matanuska Electric Association AK Intertie-Southern ROW Clearing 300,000 150,000 47,854 16%(102,146) AK Intertie-Southern ROW Remote Sensing 10,000 5,000 5,561 56%561 Matanuska Electric Association Total 310,000 155,000 53,415 17%(101,585) 58306 Misc Admin Alaska Energy Authority AK Intertie-IMC Admin Cost (Audit, Meeting, Legal) 20,000 10,000 4,697 23%(5,303) Alaska Energy Authority Total 20,000 10,000 4,697 23%(5,303) 58401 Insurance Premiums Alaska Energy Authority AK Intertie-Insurance 22,200 11,100 26,418 119%15,318 Alaska Energy Authority Total 22,200 11,100 26,418 119%15,318 Matanuska Electric Association AK Intertie-Insurance 14,800 7,400 - 0%(7,400) Matanuska Electric Association Total 14,800 7,400 - 0%(7,400) Total Total Expense 3,492,100 1,746,050 613,825 18%(1,132,225) Total Operating Expenses 3,492,100 1,746,050 613,825 18%(1,132,225) 71001 Total Expense, Budget Alaska Energy Authority Administrative Support Services 250,000 125,000 121,460 49%(3,540) Alaska Energy Authority Total 250,000 125,000 121,460 49%(3,540) Total Total Expense 250,000 125,000 121,460 49%(3,540) Total AEA Administration Expenses 250,000 125,000 121,460 49%(3,540) Total Expenses 3,742,100 1,871,050 735,285 20%(1,135,765) Surplus (Shortage)224,265 790,331 1,717,407 766%927,077 Page 3 of 4 Alaska Intertie FY24 Budget to Actuals Status Report for the Period 07/01/2024 through 12/31/2024 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 11,268 2,458 - 13,726 Jan - - - - Feb 11,151 2,261 - 13,412 Feb - - - - Mar 7,727 2,466 - 10,193 Mar - - - - Apr 10,367 2,258 - 12,625 Apr - - - - May 10,823 2,321 - 13,144 May - - - - Jun 4,728 1,935 - 6,662 Jun - - - - TOTAL 178,366 27,527 - 205,893 TOTAL 96,819 13,179 - 109,998 INTERTIE PROJECTED ENERGY USAGE TO DATE (MWH) 136,132 INTERTIE ACTUAL ENERGY USAGE TO DATE (MWH) 109,998 Budgeted Operating Costs for the Period 1,746,050$ Actual Operating Costs for the Period 613,825$ (based on amended budget) Budgeted Usage Revenue for the Period 1,780,601$ Actual (Billed) Usage Revenue for the Period 1,438,774$ (budgeted rate * projected usage) (budgeted rate * actual usage) Estimated Budgeted Energy Rate per MWH 10.71$ (based on budgeted costs and usage) Annual Budgeted Energy Rate (Billed Rate) 13.08$ Projected Actual Energy Rate per MWH 4.66$ (based on minimum contract value) (based on actual costs and usage) Page 4 of 4 Intertie Management Committee Meeting IOC Report January 14, 2025 1. Intertie Operating Committee a. The IOC recommends approval of the attached letter of recommendation for a wildfire mitigation grant. The grant would require a $1M match from the IMC over five years, but the grant cost would be offset by less clearing costs as shown on the attached cost comparison. The grant would include both physical clearing, herbicides, and planting of low growing vegetation with the long-term goal of significantly reducing clearing costs. b. The FY26 budget was discussed, and a draft budget is anticipated by the March meeting. c. Structure 616 was damaged in a January 24 avalanche. GVEA has installed temporary supports and is working toward a permanent solution. Cost for the permanent fix will be included in the FY26 budget. 2. System Studies Subcommittee a. EPS provided preliminary results of a system impact study that focuses on upgrading the Kenai to Anchorage and Anchorage to Healy transmission lines to 230 kV. The study showed limited increase in capacity with the upgrade. The SSS provided feedback to EPS and additional scenarios will be run to see if capacity increases are possible. b. A contract was executed with Telos Energy, Inc. (ECI) in November to perform a system wide IBR study. Data has been provided to ECI and they are now performing the analysis. 3. Relay, Protection, & Control Subcommittee a. The committee was assigned review of the existing SVC contract and provide a recommendation whether to modify the contract prior to renewal and determine if renewal of the contract is warranted. b. GVEA requested access to protection devices at Douglas and the committee is looking into what is needed to grant the access. Fiscal Year Diff 7/1/2026-6/30/2027 (332,784.11)$ Projected Acres Projected Avg. Cost/Acre Projected Acres Projected Avg. Cost/Acre 479.03 $2,778.82 0.00 $0.00 7/1/2027-6/30/2028 (272,524.26)$ Projected Acres Projected Avg. Cost/Acre Projected Acres Projected Avg. Cost/Acre 357.33 $2,865.12 0.00 $0.00 Projected Acres Projected Avg. Cost/Acre Projected Acres Projected Avg. Cost/Acre 121.21 $546.98 0.00 $0.00 7/1/2028-6/30/2029 457,337.85$ Projected Acres Projected Avg. Cost/Acre Projected Acres Projected Avg. Cost/Acre 0.00 $0.00 404.12 $1,365.73 Projected Acres Projected Avg. Cost/Acre Projected Acres Projected Avg. Cost/Acre 455.76 $540.22 0.00 $0.00 Projected Acres Projected Avg. Cost/Acre Projected Acres Projected Avg. Cost/Acre 303.03 $436.00 0.00 $0.00 7/1/2029-6/30/2030 219,895.93$ Projected Acres Projected Avg. Cost/Acre Projected Acres Projected Avg. Cost/Acre 0.00 $0.00 244.36 $1,562.50 Projected Acres Projected Avg. Cost/Acre Projected Acres Projected Avg. Cost/Acre 669.09 $565.82 0.00 $0.00 Projected Acres Projected Avg. Cost/Acre Projected Acres Projected Avg. Cost/Acre 45.45 $548.80 0.00 $0.00 Projected Acres Projected Avg. Cost/Acre Projected Acres Projected Avg. Cost/Acre 533.33 $457.80 0.00 $0.00 7/1/2030-6/30/2031 217,333.19$ Projected Acres Projected Avg. Cost/Acre Projected Acres Projected Avg. Cost/Acre 0.00 $0.00 170.91 $1,715.43 Projected Acres Projected Avg. Cost/Acre Projected Acres Projected Avg. Cost/Acre 426.67 $603.04 0.00 $0.00 Projected Acres Projected Avg. Cost/Acre Projected Acres Projected Avg. Cost/Acre 80.00 $576.24 0.00 $0.00 Total Cost 289,258.61$ Total Acres USDA Grant Match vs. Current Practice Cost Breakdown $551,920.46 $0.00 $0.00 $161,922.25 Physical Controls $332,784.11 $272,524.26 $94,582.61 Match Request Cost Current State Cost Data Collection Data Collection $293,182.58 $381,818.18 Physical Controls Physical Controls Physical Controls Data Collection Physical Controls Herbicide Controls Data Collection Biological Controls Herbicide Controls Physical Controls Physical Controls Herbicide ControlsHerbicide Controls Herbicide Controls Herbicide Controls Physical Controls Physical Controls Herbicide ControlsHerbicide Controls Physical Controls Biological Controls $75,849.39 Biological ControlsBiological Controls $937,662.62 $1,226,921.23 3,470.90 819.39 Intertie Management Committee Meeting Operator Report February 14, 2025 1. Alaska Intertie usage report a. MWh usage – Measured at Douglas Substation, YTD GVEA MEA Total i. July – February FY25 105,834 15,304 121,138 ii. July – February FY24 208,671 15,751 224,430 iii. Delta - FY25 to FY24 (-49.3%) (-2.8%) (-46.0%) 2. Alaska Intertie trips to report There were two trips of the Alaska Intertie in the month of January. The January 12 trip of the intertie resulted in significant oscillations in the resulting island that included Chugach and MEA. The trip was due to a single line to ground fault on the Teeland to Douglas line. HEA was already islanded at the time of the event due to Southern Tie being out of service for construction. During the oscillation no generators tripped. At the time of the event droop was disabled at Plant 2A. The Oscillation continued until the SPP operator took SPP out of droop. A study is in progress to identify the cause and the corrective action to be taken. The second trip occurred on January 23rd. The Alaska Intertie was carrying 16.2 MW when there was a fault between Teeland and Douglas that cleared. Normal operation of protection was observed. Maximum frequency of 60.3 Hz was seen south of Teeland. 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 pasted below. Event Date Time MW Tripped Pre-Trip Frequency (Hz) High /Low Frequency (Hz) Frequency Response (MW/0.1Hz)Cause Teeland-Douglas Trip 1/12/2025 20:32:23 18.3 59.99 60.34 5.2 C-Phase to Ground Fault Douglas-Healy Trip 1/23/2025 18:22:25 16.2 60.02 60.31 5.7 C-Phase to Ground Fault, 80 Miles from Douglas towards Healy 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) Healy 2 Trip 1/7/2025 30:32:57 43.9 59.95 59.64 14 UVSS 1132 Trip 1/12/2025 11:02:31 14.9 60.07 60.32 6.1 Healy 2 Trip 1/13/2025 8:30:27 44.9 60.03 59.64 11.5 Healy 2 Trip 1/28/2025 15:01:48 58.6 59.97 59.44 11.2