During 2020, wholesale electricity prices at major trading hubs in the United States were generally lower than in 2019, although prices in the western states trended higher in the last half of the year. Compared with 2019 prices, these wholesale hub prices in 2020 ranged from 5% lower in the California Independent System Operator (CAISO) market to 45% lower in the Electric Reliability Council of Texas (ERCOT) market. Monthly wholesale electricity prices were also generally less volatile in 2020 than in 2019.