Utility Solar

The largest electric power plant in the world is the Three Gorges Dam in China, that has a capacity of 22.5 gigawatts. The largest in the US is also a hydroelectric plant: the Grand Coulee Dam that has a capacity of nearly 7 gigawatts. But solar panels keep getting cheaper and developers keep getting better at installing them. As a result, there are bigger and bigger solar projects that are taking over the lead in giant power plants.

Utility-scale solar power is the fastest-growing source of electricity in the U.S. Well over half of all new U.S. electric capacity added in 2025 was utility-scale solar. As of late 2025, total utility-scale solar capacity surpassed 153 GW, enough to power 45 million homes.