HomeMy WebLinkAbout2022-12-09 IMC Agenda and docs INTERTIE MANAGEMENT COMMITTEE (IMC) REGULAR MEETING AGENDA December 9, 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 – September 30, 2022
7. NEW BUSINESS
A. FY22 Estimated Annual Surplus
B. 2023 Proposed Meeting Dates
8. OLD BUSINESS - NONE
9. COMMITTEE REPORTS
A. Budget to Actuals Report
B. IOC Committee
C. Operator’s Report
10. MEMBERS COMMENTS
11. NEXT MEETING DATE – January 27, 2022
12. ADJOURNMENT
2023 Proposed IMC Meeting Dates:
January 27, 2023
March 24, 2023
May 19, 2023
June 23, 2023
July 28, 2023
September 29, 2023
December 8, 2023
Alaska Energy Authority
AK Intertie Budget to Actual Expenses
7/1/2022 to 9/30/2022
Page 1 of 4
FY23 Approved
Budget
BUDGET
07/01/2022 -
09/30/2022 Actuals
YTD Actuals as a
% of Total
Annual Budget
OVER (UNDER)
YTD Variance
Revenue From Utilities
AKI-GVEA 2,659,180 819,640 539,540 20%(280,100)
AKI-CEA 405,435 213,935 213,935 53%-
AKI-MEA 440,368 153,436 157,195 36%3,759
Total Revenue From Utilities 3,504,984 1,187,012 910,671 26%(276,342)
Interest/Capital Credits - - 7,825 0%7,825
Total Revenues 3,504,984 1,187,012 918,495 26%(268,517)
Total Revenues 3,504,984 1,187,012 918,495 26%(268,517)
56200 Station Expenses
Golden Valley Electric
AK Intertie-Substation Electricity Usage - - 1,863 0%1,863
Golden Valley Electric Total - - 1,863 0%1,863
56600 Misc Transmission Expense
Alaska Energy Authority
AK Intertie-Cell Phone Comm. Svc. for Wx Monitorin 13,000 3,250 3,001 23%(249)
AK Intertie-Misc Studies as needed 546,000 136,500 - 0%(136,500)
Alaska Energy Authority Total 559,000 139,750 3,001 1%(136,749)
Golden Valley Electric
AK Intertie-Private Line Telephone Service SCADA 10,000 2,500 1,621 16%(880)
Golden Valley Electric Total 10,000 2,500 1,621 16%(880)
Matanuska Electric Association
AK Intertie-Misc Studies as needed - - (27,000) 0%(27,000)
Matanuska Electric Association Total - - (27,000) 0%(27,000)
56601 Weather Monitoring Batteries
Alaska Energy Authority
AK Intertie-SLMS Support and Intertie Grnd Patrol 140,000 35,000 183 0%(34,817)
Alaska Energy Authority Total 140,000 35,000 183 0%(34,817)
56700 Rents
Alaska Energy Authority
AK Intertie-Alaska Railroad 700 175 - 0%(175)
Alaska Energy Authority Total 700 175 - 0%(175)
Matanuska Electric Association
AK Intertie-Talkeetna Storage 7,200 1,800 1,800 25%-
AK Intertie-Equipment Rental - - 102 0%102
Matanuska Electric Association Total 7,200 1,800 1,902 26%102
56900 Maintenance of Structures
Alaska Energy Authority
Alaska Energy Authority Total - - - 0%-
57000 Maintenance of Station Equip
Chugach Electric Association
AK Intertie-Teeland Substation 173,200 43,300 33,884 20%(9,416)
Chugach Electric Association Total 173,200 43,300 33,884 20%(9,416)
Golden Valley Electric
AK Intertie-Healy, Cantwell, Goldhill 75,000 18,750 108,764 145%90,014
AK Intertie-SCADA Maint Healy, Cantwell, Goldhill 5,000 1,250 - 0%(1,250)
AK Intertie-Cantwell 4S2 Switch Repair 156,000 39,000 30,434 20%(8,566)
AK Intertie-Maint & Repaint Reactors Healy SVC Yd 80,000 20,000 3,902 5%(16,098)
Golden Valley Electric Total 316,000 79,000 143,100 45%64,100
Matanuska Electric Association
AK Intertie-Douglas Substation 25,000 6,250 - 0%(6,250)
Matanuska Electric Association Total 25,000 6,250 - 0%(6,250)
ALASKA ENERGY AUTHORITY
AK INTERTIE BUDGET TO ACTUAL EXPENSES
FOR THE PERIOD 07/01/2022 THROUGH 09/30/2022
Page 2 of 4
FY23 Approved
Budget
BUDGET
07/01/2022 -
09/30/2022 Actuals
YTD Actuals as a
% of Total
Annual Budget
OVER (UNDER)
YTD Variance
ALASKA ENERGY AUTHORITY
AK INTERTIE BUDGET TO ACTUAL EXPENSES
FOR THE PERIOD 07/01/2022 THROUGH 09/30/2022
57100 Maint of OH Lines
Golden Valley Electric
AK Intertie-Northern Maintenance 100,000 25,000 56 0%(24,944)
Golden Valley Electric Total 100,000 25,000 56 0%(24,944)
Matanuska Electric Association
AK Intertie-Special Patrols (Incl Foundation Insp) 10,000 2,500 488 5%(2,012)
AK Intertie-Southern Maint. (Incl Ground Insp) 140,000 35,000 - 0%(35,000)
AK Intertie-Equipment Repair and Replacement 684,000 171,000 - 0%(171,000)
Matanuska Electric Association Total 834,000 208,500 488 0%(208,012)
57102 Maint OH Lines-ROW Clearing
Golden Valley Electric
AK Intertie-Northern ROW Clearing 400,000 100,000 - 0%(100,000)
Golden Valley Electric Total 400,000 100,000 - 0%(100,000)
Matanuska Electric Association
AK Intertie-Southern ROW Clearing 500,000 125,000 - 0%(125,000)
Matanuska Electric Association Total 500,000 125,000 - 0%(125,000)
58302 Operating Committee Exp-Legal
Alaska Energy Authority
AK Intertie-IMC Admin Cost (Audit, meeting, legal) - - 1,533 0%1,533
Alaska Energy Authority Total - - 1,533 0%1,533
58306 Misc Admin
Alaska Energy Authority
AK Intertie-IMC Admin Cost (Audit, meeting, legal) 20,000 5,000 - 0%(5,000)
Alaska Energy Authority Total 20,000 5,000 - 0%(5,000)
58307 Professional Consultants
Alaska Energy Authority
AK Intertie-IMC Admin Cost (Audit, meeting, legal) - - 305 0%305
Alaska Energy Authority Total - - 305 0%305
58401 Insurance Premiums
Alaska Energy Authority
AK Intertie-Insurance 25,000 6,250 11,094 44%4,844
Alaska Energy Authority Total 25,000 6,250 11,094 44%4,844
Matanuska Electric Association
Matanuska Electric Association Total - - - 0%-
Total Station Expenses 3,110,100 777,525 172,028 6%(605,497)
Total Operating Expenses 3,110,100 777,525 172,028 6%(605,497)
71001 Total Expense, Budget
Alaska Energy Authority Total 200,000 50,000 19,880 10%(30,120)
Total Total Expense, Budget 200,000 50,000 19,880 10%(30,120)
Total AEA Administration Expenses 200,000 50,000 19,880 10%(30,120)
Total Expenses 3,310,100 827,525 191,908 6%(635,617)
Surplus (Shortage)194,884 359,487 726,587 373%367,100
Page 3 of 4
Alaska Intertie FY23 Budget to Actuals Status Report for the Period 07/01/2022 through 09/30/2022
Budgeted Usage Actual Usage to Date
GVEA MEA CEA ML&P TOTAL GVEA MEA CEA ML&P TOTAL
MONTH MWH MWH MWH MWH MWH MONTH MWH MWH MWH MWH MWH
Jul 32,301 1,918 - - 34,219 Jul 10,865 2,252 - - 13,117
Aug 36,741 1,968 - - 38,709 - Aug 19,648 2,239 - - 21,887
Sep 37,596 1,951 - - 39,547 Sep 21,418 2,080 - - 23,498
Oct 40,739 2,003 - - 42,742 Oct - - - - -
Nov 35,783 2,269 - - 38,052 Nov - - - - -
Dec 35,761 2,455 - - 38,216 Dec - - - - -
Jan 35,543 2,139 - - 37,682 Jan - - - - -
Feb 30,397 2,018 - - 32,415 Feb - - - - -
Mar 33,294 2,171 - - 35,465 Mar - - - - -
Apr 38,537 1,906 - - 40,443 Apr - - - - -
May 33,177 1,867 - - 35,044 May - - - - -
Jun 38,652 1,811 - - 40,463 Jun - - - - -
TOTAL 428,521 24,476 - - 452,997 TOTAL 51,931 6,571 - - 58,502
INTERTIE PROJECTED ENERGY USAGE TO DATE (MWH)112,475 INTERTIE ACTUAL ENERGY USAGE TO DATE (MWH) 58,502
Budgeted Operating Costs for the period 777,525$ Actual Operating Costs for the period 172,028$
(based on amended budget)
Budgeted Usage Revenue for the period 575,872$ Actual (Billed) Usage Revenue for the period 299,530$
(budgeted rate x projected usage)(budgeted rate x actual usage)
Estimated Budgeted Energy Rate per MWH 5.77$
(based on to date budgeted costs and usage)
Annual Budgeted Energy Rate (Billed Rate)5.12$ Projected Actual Energy Rate per MWH 2.46$
(based on minimum contract value)(based on to date actual costs and usage)
Page 4 of 4
Intertie Management Committee Meeting
IOC Report
December 9, 2022
1. Intertie Operating Committee
a. The IOC reviewed and provided input regarding the comments that AEA’s David Lockard
made to the vegetation management plan prepared by the Maintenance Subcommittee.
This is another step toward finalizing the plan.
2. System Studies Subcommittee
a. The System Studies Subcommittee (SSS) reported on the Synchrophasor Project. An
RFP has been posted, and proposals were due December 2, 2022.
b. The System Studies Subcommittee reported on the Oscillation Study.
c. HEA plans to update the Nikiski and Soldotna power system stabilizer tuning next year.
d. Updates to the PSSE dynamic model for Bradley Lake are in progress, to be completed
before tuning of the Bradley Lake systems are done. The SSS is working with EPS on this
activity.
e. The System Studies Subcommittee is working with the Dispatch Subcommittee to
develop policies and procedures to implement the recommendations of the reserves
study.
f. The SSS introduced their work toward implementing a Railbelt‐wide synchrophasor
system at the NWPPA E&O conference in Anchorage.
3. Dispatch and Operations Subcommittee
a. The Dispatch and Operations Subcommittee (DOS) reported that it has initiated work
with the SSS to develop and implement policies and procedures recommended by the
reserves Study.
b. The DOS reported on progress toward standardizing the procedures for accounting for
and responding to inadvertent schedule deviations.
c. The DOS provided an informal report on a proposed process to return balancing areas
automatic generation control back to tie line bias after a disturbances.
Intertie Management Committee Meeting
Operator Report
November 9, 2022
1. Alaska Intertie usage report
a. MWh usage – Measured at Douglas Substation
GVEA MEA Total
i. July – November FY23 103,955 10,989 114,944
ii. July – November FY22 42,040 9,897 51,937
iii. Delta - FY23 to FY22 147.3% 11.0% 121.3%
2. No Alaska Intertie trips to report
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.
Events without data for the MW magnitude of the trip were excluded, as were events that did not cause
a frequency deviation of greater than 0.2 Hz.
Frequency data is sourced from the Teeland Tesla disturbance fault recorder. MW data is sourced from
Chugach SCADA, which receives data from other utilities via ICCP.
Event Date MW
Tripped
Pre-Trip
Frequency (Hz)
High /Low
Frequency
(Hz)
Frequency
Response
(MW/0.1Hz)
Bradley 2 Trip 9/21/22 59.7 60.051 59.464 10.2
Healy 2 Trip 10/8/22 26.8 59.958 59.687 9.9
SPP 11 Trip 10/20/22 41.82 59.968 59.666 13.8
NPCC 3 Trip 10/25/22 45.32 60.01 59.577 10.5
NPCC 3 Trip 11/21/22 31.03 59.955 59.627 9.5
Southern Tie Trip 11/22/22 60.92 60.0 59.013 6.2
NPCC Trip 12/1/22 46.08 60.018 59.604 11.1