Fossil-Fueled vs. Wind and Solar Generation in 10 Largest Balancing Areas

Among the 10 largest balancing areas, only the California Independent System Operator had a lower share of fossil-fueled generation than the Tennessee Valley Authority in 2023. The other balancing areas had more fossil-fueled generation even though they also had more wind and solar generation.

Fossil-fueled includes coal, gas, and oil generation; other is largely combustion of biomass/waste. BAs are top 10 by installed generation capacity, in order: PJM, MISO, ERCO, SWPP, CISO, SOCO, NYIS, TVA, ISNE, FPL.
Chart: Fred Stafford, @fredstaffordcs, PublicPowerReview.orgSource: EIA Form 923Get the dataCreated with Datawrapper