In 2022, residential solar panels generated 37 million megawatt-hours, accounting for 18% of all solar energy in the US, according to the Energy Information Administration. The average US home uses about 11,000 kilowatt hours per year, meaning residential solar panels generated enough electricity to power 3.4 million homes in 2022.
Solar energy is one of the fastest-growing renewable energy sources in the US, according to the Department of Energy. The US had about 3.9 million photovoltaic solar power systems installed at residences at the end of 2022, according to the National Renewable Energy Laboratory. That number has grown by an average of 37% per year since Congress passed a federal tax credit for solar power in 2005.
