OC reviews resilience, summer performance, winter prep

PJM and stakeholders reflected on the change of seasons at the Operating Committee meeting Tuesday, reviewing the summer peaks and previewing winter preparations. Operations Planning also presented information on resilience planning related to gas/electric coordination.

Dave Souder, director – Operations Planning, Brian Fitzpatrick, senior lead fuel supply analyst; and Marilyn Jayachandran, senior engineer, provided education on a part of PJM’s system resilience efforts: gas/electric coordination and gas pipeline contingencies.

After the 2014 Polar Vortex, PJM assembled a gas/electric coordination team. It was charged with improving coordination with pipelines and local gas distribution companies and developing tools and support processes to better inform PJM system operators of the potential impact on the electric grid of gas pipeline issues.

To advance resilience, PJM wants to create operating procedures that will define specific processes to evaluate the risk on the electric system, with a clear understanding of gas infrastructure redundancy (including generator dual-fuel capabilities). The procedures will also determine gas contingencies under normal operations and external threat conditions, such as cyber and physical threats.

PJM is working with the Argonne National Laboratory on pipeline modeling in order to better understand the impact of failure scenarios on pipeline pressure and electric generator performance. PJM staff will continue to solicit stakeholder feedback on pipeline and compressor station operational information at a special session following the November OC meeting.

Chris Pilong, director – Dispatch, presented the summer overview. There were 13 hot weather alerts – six of them RTO-wide. The RTO’s peak day was on July 19.

RTO Peak 145,627 MW @ 1800
Mid Atlantic 53,899 MW @ 1800
Dominion 18,218 MW @ 1800
Generation Outages 16,538 MW
RTO Net Scheduled Interchange 2,905 MW (Exporting)
Economic Demand Response 0 MW
Strong Voltage Profile, Minimal Transmission Limitations

Pilong also gave an update on the Sept. 21 shortage pricing event. Due to unusually hot weather that day throughout the PJM Western Region, PJM briefly entered shortage pricing. Shortage pricing was triggered after system operators called on synchronized reserves to maintain power balance on the transmission system. PJM did not enter performance assessment intervals (formerly performance assessment hours) during the shortage period.

Vince Stefanowicz, senior lead engineer – Generation, gave an overview of winter preparations, including the seasonal fuel survey. PJM requires the survey for reliable operations planning purposes. It supplies a baseline for fuel supply and fuel reserves ahead of the winter season and enhances situational awareness in preparation for severe weather.

Survey notification was sent to generation owners’ eDART contacts on Oct. 13.

PJM will also conduct a generation winter weather operational exercise, compiling a list of eligible units by Nov. 10. Unit representatives should then identify by Nov. 20 the units they want to participate in the winter exercise, which will run during the month of December.

PJM will issue its cold weather checklist survey list in eDART from Nov. 1 through Dec. 15. The checklist and preparation guide provide generators with a guide to reduce problems during cold weather events.

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PJM reminded stakeholders of a directive from the Members Committee.

In response to stakeholders concerns about overlapping and concurrent meetings and stakeholders’ ability to cover those meetings, PJM has asked the Operating, Planning, Market Implementation and Markets & Reliability committees and their respective subcommittees and subgroups to review their work plans in an effort to simplify the stakeholder process.