HomeMy WebLinkAboutIntertie OC Controller Duties Oct 1993* Filetipe Dw ; 21 hen (oe
Fairbanks MunioipalUtilities System
OCT 12 1993
; \/ TO: BRAD EVANS, 16 CC Pt A ENE OGRA | /
FROM: VINCE MOTTOLA, SUBCOMMITTEE CHAIRMAN-CONTROLLER DUTIES
SUBJECT: CONTROLLER DUTIES
DATE: OCTOBER 6, 1993
The subcommittee was given the task of reviewing the charges to the Alaska Intertie by the
Northern and Southern Controllers to determine if the duties may be trimmed or streamlined to
reduce overall operating costs of the line. The subcommittee met in Anchorage on September
29 to this end. Both the Intertie Agreement and NERC Guides were checked for duty
requirements. It was determined that many of the presently done and charged duties are routinely
done by any interconnected utility without compensation.
The following descriptions itemize common interconnected utility tasks:
1. Intertie Scheduling - This involves coordination with all affected utilities for reserves and
energy to insure proper intertie loading. This also includes var scheduling as required to
maintain adequate voltage levels. (Since intertie overloading critically affects GVEA
facilities, they as a utility check this no matter who would officially "control".) 2. Actual Intertie Operation - Scheduling outages for maintenance, restoration of intertie after
forced outage, normal operation of intertie equipment. (Task for GVEA as a utility
directly affected by maintenance, used to distant operation of system, including tag-out
clearances, and vested interest in restoration.)
3. Time error correction - Coordination between all generating facilities to adjust time error
as required. (Task for each utility respectively.)
4. Operate the Intertie Equipment - in accordance with the Intertie Agreement each
substation would be operated by interconnected utility with their other equipment. (Kenai
SVC now not billed by CEA, Teeland SVC & 1 breaker would be operated by CEA for
free, Douglas could be operated for free by CEA or by "Controller" at no cost to Intertie.)
5. Perform All Loss Calculations - required for intertie schedules. (GVEA is required to do
this as a wheeling utility, not as the controller.)
CORRESPONDENCE DISTRIBUTION interhE WANin the lcapali@B/S the
3 he-power flow o he tie |
6. Monitor and Coordinate - the power flows over th4
intertie. (It is the responsibility of GVEA and CEA|te
lines leaving and entering their systems as part of ipterce
of the controller.)
Fairbanks, Alaska 9970752215 +
645 Fifth Avenue + P.O. Box 72215 +
Subcommittee Meeting-Controller Duties
October 6, 1993, Page 2
7. Hourly Transaction Maintenance - records accurately all Intertie transactions, operations,
and activities involving the Intertie. Publish and distribute records showing the daily
summary of all hourly transactions to all participants at weekly intervals. (Since this must
be performed anyway by the wheeling utility, they should not be a cost item.)
The following items should be done by a "Controller":
A. AUDITING - is to be done by the Controller or the State as specified. (On rotating basis
on a frequency requested by the IOC.)
B. RESERVE REQUIREMENTS - monitoring for all participants, both spinning and
operating reserve with records of actual vs required, preparing monthly report to the IOC
for review and action as necessary. (Since utilities are doing this anyway, the controller
task would be to spot check two to three times daily. Stipulated by IOC would be
whether a top-of-hour or integration of ten minute demands/generation system is used.
The Controller would be rotated at yearly intervals.)
C. OUTAGE RECORD MAINTENANCE - on a quarterly basis published to Participants.
Keep up a database of why Intertie had an outage and problems of restoration. (On a
rotating basis.)
Discussion proceeded that these new task items should cost a small fraction of today's cost, but
that the assigned Controllers be requested to present, similar to past Intertie Budget submittals
showing hourly and yearly time by itemized subtask, their costs for Budget amendment. It was
further suggested that the State could reduce its oversight costs tremendously with similar transfer
of existing duplicating tasks to respective utilities.
We also discussed the State (AIDEA) involvement in the Intertie. This is not a recommendation
but rather a report of the subcommittee members on this issue. It is my feeling that I am
expressing Chugach Electric Association, Matanuska Electric Association, and Fairbanks
Municipal Utilities System intention that as far as we know it will be beneficial to all the Utilities
if the State will keep ownership of the Intertie, with other issues being resolved privately such
as: secretarial duties, budget preparation, maintenance, engineering, and accounting. All these
tasks should be privately handled by the Utilities. As previously stated, this is reported only as
discussion and not as recommendation.
ce: David Burlingame, CEA
Jim Hall, MEA
Dennis McCrohan, AIDEA
Stan Sieczkowski, AIDEA
Afzal Khan, AIDEA
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