Regional grid operator PJM Interconnection recently broke the winter peak load record set just last year during the polar vortex, Gongwer reports. Unlike last year, however, the recent preliminary peak demand of 143,800 MW did not force any outages, because PJM had nearly 161,000 MW available to meet the demand, reports Lehigh Valley Live. “[A]n unusual number of plant outages” contributed to last year’s service issues, according to the Pittsburgh Business Times. “[M]ore power plants were available” compared to the January 2014 record-breaking event; PJM has since “enhanced monitoring of the power plants in its system and has increased communications with utilities,” according toGongwer. FirstEnergy Corp., American Electric Power Ohio and Duke Energy cited grid reliability problems during last year’s polar vortex in their “proposals to require customer to guarantee profits from aging power plants (see our September 8, 2014 blog post for more on this),” which are still pending before the Public Utilities Commission of Ohio, Gongwerreports. For more, read the full Lehigh Valley Live and Pittsburgh Business Times articles