NAICS 221114 Solar Electric Power Generation covers establishments primarily engaged in operating solar electric power generation facilities and supplying the electricity produced to transmission or distribution systems. Major companies include diversified electric utilities and independent producers Berkshire Hathaway Energy, NextEra Energy, Pacific Gas and Electric, Southern California Edison. Solar power systems mainly include photovoltaic (PV) panels, inverters, battery storage, and mounting structures. PV panels convert sun rays into electricity while an inverter transforms the direct current (DC) produced by the panel into alternating current (AC) for use at homes and businesses. Plan, design, and. The US solar industry installed 11. 7 gigawatts direct current (GWdc) of capacity in Q3 2025, a 20% increase from Q3 2024, a 49% increase from Q2 2025, and the third largest quarter for deployment in the industry's history. Provided by Touchpoints This U. These facilities use energy from the sun to produce electric energy.