Over the past decade, solar power and energy storage have grown from supporting players on America’s grid to anchor resources that shape the affordability and reliability of the entire U.S. electrical system.
Solar dominates new energy additions, adding more power capacity to the U.S. grid than any other energy source for the last five consecutive years. Energy storage has experienced similar growth, with the two sources representing 70% of all new grid capacity added in the U.S. this year. With this wave of new additions, solar and storage are making their presence felt — reducing wholesale electricity prices, supporting grid reliability, and delivering abundant, low-cost power to communities across the country.
From utility-scale projects in the desert to small systems on your home, solar’s combined contribution to America’s electricity supply is growing every year. In 2025, ~9% of all U.S. electricity came from solar power, nearly 7x its share a decade ago.
Solar is foundational to the power supply of multiple states, and not just southern states in the Sun Belt. Nevada, California, and Maine have led the nation in percentage of electricity from solar over the last 12 months, with Nevada getting 37% of its power from the sun.
Every year, solar and storage are increasing the supply of affordable, homegrown power in the United States—delivering more for the millions of homes, businesses, and communities that rely on it.
Every megawatt-hour of electricity provided by solar saves on expensive fuels that would otherwise be used at a gas, coal, or oil-fired power plant. Solar generation now saves Americans about $1 billion per month in direct fuel costs alone.
The fuel for solar plants—sunshine—is free and cannot be interrupted or embargoed. So, as we generate more solar power and batteries move more of this low-cost energy to the evening time, wholesale electricity prices fall. Solar saves even more during months when solar makes up a larger share of generation or gas prices are particularly high.
Explore historical reports covering the solar and storage industry's growth