"Mean wholesale electricity prices in 2024 were lowest in SPP ($27.87/MWh), the Southeast ($29.72/MWh), and Southern California ($29.95/MWh), and highest in the Northwest ($59.98/MWh)."
https://www.ferc.gov/sites/default/files/2025-03/25_State-of...If my math is right, divide those by 10 for cents per kWh