June and July constituted the second-warmest such period in Philadelphia since recordkeeping began in 1874, and the latest power numbers indicate how widespread this summer's heat has been.
Power use in June and July was up 16 percent over last year in the 13 states in the PJM Interconnection, and set all-time records in both months.
Granted, people are using more electricity these days when air-conditioning is all but ubiquitous, but still that's impressive.
The 63.2 megawatts used in June were sufficient to power Switzerland for a year, according to PJM. No comparable metaphor was available for July, at 71.8 megawatts.