Extreme weather and higher electricity prices are leading American households to bolt a record number of solar panels to their rooftops, loosening ties to the power grid and the utilities that run it.
About 5.3 gigawatts of residential solar power capacity are to be installed this year, the biggest year for new installations and roughly equivalent to total rooftop solar capacity nationwide in 2015, the US Energy Information Administration has forecast.
Installations jumped about 40 per cent year on year with about 180,000 US homes adding systems in the second quarter, according to the latest data compiled by consultancy Wood Mackenzie.
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