On August 2, 2006, the temperature in Massachusetts hit 99 degrees with 65% humidity. New Englanders cranked up their air conditioners and fans like never before, setting an all-time record for electricity use on the regional grid. Historically, New England has suffered from some of the highest retail electricity costs in the US. But about two years later, around 2008-2010, the area began investing in rooftop solar panels.
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