In 2025, net solar power generation in the United States reached its highest point yet at 295. 7 terawatt hours of solar thermal and photovoltaic (PV) power. Enter any US zip code to get NASA POWER satellite irradiance data — the same dataset used by solar engineers and NREL's PVWatts. Returns monthly peak sun hours (kWh/m²/day) and estimated annual output. Works for all 50 states: AZ, TX, CA, FL, NY, WA and all others. It is the single most important number for sizing a solar system, because it converts instantaneous. Solar power will lead electricity generation growth in the next two years, according to new data from the U. Energy Information Administration. What's going on: Electricity generation from solar power totaled approximately 4,260 billion kilowatt hours in 2025, and that number is expected to grow. Enhance PVWatts ® with features tailored to your specific needs! We collaborate with companies, universities, and organizations to privately fund new capabilities or analyses.
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