The Planning Committee will hold the first educational session on the capabilities of advanced electric storage from 1-4 p.m. Oct. 29.

PJM rules currently allow electric storage other than pump hydro to participate in only the frequency regulation market. A problem statement approved by the Markets and Reliability Committee could open the capacity market to batteries, flywheels and other storage technologies.

Katherine Hamilton, policy director for the Electricity Storage Association, provided the Planning Committee a brief introduction to storage technologies Oct. 10.

Steve Herling, PJM vice president of planning, told the committee that PJM staff is conducting research to determine how the RTO estimates the capacity values of all resources.

“We need to understand all the different sets of rules out there and their reasons. There should be consistency in some areas,” Herling said. “In areas where differentiation is appropriate let’s establish that.”

(See PJM to Consider Storage as Capacity; Energy Storage: Ready for Its Close-Up?)