US EnergyData

Share of electricity generation by source

Select state
1990
2024
Data source: U.S. Energy Information Administration (EIA) – Annual Electric Power Industry Report
Note: 2025 figures are EIA preliminary data and may be revised when the annual Form EIA-923 is finalized. Solar figures shown here are utility-scale only — facilities of 1 MW or greater, as reported by the EIA.

What this data measures

Each fuel source's share of total electricity generation — coal, natural gas, nuclear, wind, solar, hydro, and others — for each state over time. Shares sum to 100% in every year, so this shows the long-run transition in each state's electricity mix rather than how much electricity it generates.

How this data is constructed

Generation data by fuel type are sourced from the EIA State Electricity Profiles, which aggregate Form EIA-923 data. Each source's annual generation is reported for each state and summarized in the state profiles.

Source
U.S. Energy Information Administration, State Electricity Profiles
Date range
1990–2025
Unit
Terawatt-hours (TWh)
Last updated
Fall 2025
Next update
Annual — expected fall 2026