Residential solar is having its best year ever in Illinois, with 170 megawatts of power added in the first three quarters, compared with 125 megawatts in all of 2022, according to data from the Solar Energy Industries Association and research consultancy Wood Mackenzie.
A record 12,600 residential rooftop solar systems were connected to the ComEd grid in northern Illinois in the first 11 months of 2023, up from 10,400 in all of 2022, and just 98 in 2013, according to ComEd. Ameren, the state's second-largest electric utility, reported a similarly stellar year in southern and central Illinois, with 6,900 residential rooftop systems connected, up from 2,600 in 2022.
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