On February 14, 2023, the U.S. Court of Appeals for the D.C. Circuit upheld the Federal Energy Regulatory Commission’s (FERC) method for calculating the size of a small power production qualifying facility (QF) under PURPA as the net output or “send-out” capacity of the project. See Solar Energy Industries Association v. FERC, No. 21-1126 (D.C. Cir. 2023). To be a small power production QF under PURPA, a facility must use a qualified renewable resource, such as biomass, waste, wind, solar, or geothermal resources, to produce energy, and have a power production capacity that does not exceed 80 megawatts when considered with other facilities at the same site. FERC’s method of calculating the maximum size limitation was contested by Edison Electric Institute and Northwestern Energy (collectively, Utilities).