Why the average Connecticut electric bill could hit $300 this July
The hottest, most humid July in recent memory was in 2013. That year, the average Connecticut household paid about $179 for electricity that month.
This year, if this July rivals 2013 in heat and humidity, that same $179 bill could be almost doubled, $300 or higher, according to a CT Insider data analysis.
On June 24, 2025, as temperatures skyrocketed, ISO New England issued four escalating energy alerts “due to hot, humid weather driving consumer electricity demand to a peak of 26,024 megawatts,” according to a report from the nonprofit Acadia Center. It was the “highest demand that ISO-NE experienced in over a decade.”
But ISO-NE reported that its power plants were serving approximately 24,020 megawatts of demand, meaning behind-the-meter solar power — energy produced locally and fed back into the grid — “shaved approximately 4,400 megawatts of demand from the gross peak,” according to the Acadia Center.
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