Wednesday’s ice storm cut power to more than 1 million in the Philadelphia area, with Peco Energy recording a new winter outage record. RTO Insider Editor Rich Heidorn Jr. was there and brings you all the details.

Two new PJM substations, part of the Susquehanna-Roseland transmission project, are nearly complete.

The Planning and Operating committees endorsed changes to the following PJM Manuals: 7, 14A ,21 and 40.

PJM provided members a glimpse last week of the new visualization tools that will soon be available to transmission operators as a result of the deployment of synchrophasors.

The Planning Committee last week endorsed manual changes implementing PJM’s new capacity import limits.

Sub-zero temperatures from Toledo to Tennessee pushed PJM to its limits last week as the RTO overcame the loss of nearly 40,000 MW of generation during an arctic blast that set a new winter demand record.

PJM is adding more items to the to-do list resulting from the September heat wave, during which officials ordered limited load sheds to prevent a wider transmission collapse.

Below is a summary of 11 new recommendations resulting from PJM’s final report on the September 2013 heat wave. This is in addition to 11 recommendations made immediately after the events of Sept. 9-11.

PJM operators dispatched demand response this morning after cutting voltages and calling on spinning reserves last night as frigid temperatures stressed generators and created record loads across the RTO.

MISO began running the nation’s biggest RTO by geography with the integration last week of Entergy’s transmission system and those of six smaller transmission owners.