Ramp Rates, Winter Report Highlight OC

PJM’s next steps in Capacity Performance operations in the wake of rejection of the ”ramp rate filing,” and a look back at the grid’s performance during  the winter 2015/16 were among the topics covered at the Operating Committee meeting on May 7.

The committee also had an extensive discussion during the first read of proposed changes to Manual 3A, including changes that would affect how behind-the-meter generation is modeled.

Capacity Performance

PJM presented a brief summary of the Federal Energy Regulatory Commission’s rejection of PJM’s filing on ramp rate during a performance assessment hour. This means PJM will operate under the status quo.

PJM previously filed revisions to the tariff to create an exemption from non-performance charges for a Capacity Performance resource, if the resource is following PJM’s dispatch instructions. The commission stated that PJM did not meet its burden to show the revisions were just and reasonable.

PJM will work with stakeholders to develop any future modifications. Mike Bryson, vice president – Operations, said PJM wants to avoid a situation where it tells a unit to back down then is forced to call the unit back when an emergency occurs. It also wants to avoid situations where generators run at full output, prior to peak hours, causing over-generation on the system.

In addition, there was an update on the unit specific parameter process.

Winter Report

PJM presented the winter report, detailing the mild winter of 2015/16, which drove down normal winter loads.  The 2016 winter peak was 130,680 megawatts on Jan. 19, 2016. PJM’s all-time winter peak is 143,295 MW on Feb. 20, 2015.

Temperatures during December 2015 were above average, making the month the warmest on record for the Eastern United States. While January 2016 was much closer to normal on average, it had both warmer- and colder-than-normal weather periods. On Jan. 19, 2016, temperatures ranged from near zero in Chicago to around 20 degrees in Norfolk.

PJM is also working with stakeholders on the next steps for cold weather preparation, including the continuation of the cold weather testing program for generating units.

Tech Forum

 OC members also heard details about the Tech Change Forum, introduced at a previous Members Committee meeting. The forum, one of several initiatives stemming from member survey results, will provide a single roadmap for coordinating, consolidating and sharing information about planned changes to tools and technology.