MISO Consulting Advisor Terry Bilke said MISO is ready for NERC’s new frequency response reliability standard.
“We’re good right now, and we don’t see anything on the horizon that would decline our performance,” Bilke told the Reliability Subcommittee on Wednesday.
The RTO reported that 18 governor scorecards were completed and returned by utilities as of early January, and scorecards covering Sept. 1, 2015, to Dec. 31, 2015, were sent out to local balancing authorities in preparation for the rule’s April 1 effective date (BAL-003-1).
The rule requires balancing authorities to meet an annual frequency response measure (FRM) “equal to or more negative” than its frequency response obligation. The FRM is the median of frequency response performances for 20 to 35 frequency events chosen throughout the year by NERC’s Frequency Working Group.
The frequency response obligation under MISO’s field trial is ‐211 MW/0.1 Hz. MISO’s median performance from September to November was estimated at -362 MW/0.1 Hz. Those 2015 results will be submitted to NERC by March 7.
MISO said it plans to continue to “work with local balancing authorities and generators to boost governor response where appropriate.”
Bilke said if MISO was found noncompliant by NERC, MISO would have to search generator by generator until it located the source of the noncompliance. “NERC has wide latitude in what penalties they can assess,” he said in response to questions on what consequences would result from non-compliance. “We can’t predict what would happen. It would depend on how bad, how non-compliant, how receptive the parties are to making it right.”
Bilke said the fines could be as much as $1 million per day, but he said there are several options MISO can make use of before it comes to penalties. “There are ways to adjust if we see problems on the horizon.”
“I’d like frequency response to be a formal issue of the Reliability Committee. For the future, especially in light of folks concerned over the Clean Power Plan, I think this should be a formal issue,” Reliability Subcommittee Chair Tony Jankowski said.
Preparation for the rule’s deadline continues with MISO’s next governor collaboration call taking place Jan. 22.
MISO: November and December ‘Uneventful’
Senior Real Time Operations Engineer Steve Swan reviewed what he called “two relatively uneventful months” in the November and December operations updates. Swan said there weren’t any areas of concern. November’s load averaged 68.9 GW, about even with October’s load, and 6.6 GW lower than November 2014. During December, load peaked at 87.1 GW on Dec. 17, down from December 2014’s peak of 93.1 GW.
In both November and December, real-time unit commitment performance was rated “excellent” on a daily basis. Real-time unit commitment performance at peak hours was also consistently rated excellent, with the lone exception of Nov. 23, when it was given a “good” rating. December, however, achieved near-perfect ratings every day of the month.
“This is the report through December you hope to expect,” Swan said.
Neither November nor December had any capacity shortages or any periods of load so light that generators had to operate at emergency minimum levels. During the two months, there also weren’t any reliability issues. Swan said generator maintenance was on the rise in October and planned generator outages remained high during November before tapering off in December as maintenance season drew to a close.
MISO said during December, day-ahead and real-time LMPs were at their lowest levels since January 2009, when the ancillary services market was launched. The RTO credited the dip to reduced congestion.
— Amanda Durish Cook
