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Electricity generation by source

Annual net electricity generation by state, provider type and energy source, compiled by EIA from the EIA-923 Power Plant Operations Report and predecessor forms EIA-906 and EIA-920. Published as "Net Generation by State by Type of Producer by Energy Source (EIA-906/920/923)".

Figures

Net electricity generation, 1990 to 2024Net electricity generation, 1990 to 2024. Idaho: 9,691.475 in 1990, 20,035.438 in 2024.010k20k30k20002020IdahoGigawatt-hoursNet electricity generation, 1990 to 2024Net electricity generation, 1990 to 2024. Idaho: 9,691.475 in 1990, 20,035.438 in 2024.010k20k30k1990200020102020IdahoGigawatt-hoursNet electricity generation, 1990 to 2024Net electricity generation, 1990 to 2024. Idaho: 9,691.475 in 1990, 20,035.438 in 2024.010k20k30k1990200020102020IdahoGigawatt-hours

Source: U.S. Energy Information Administration, Net Generation by State (EIA-923). Data period 2024. Published .

MeasureValuePeriod
Net electricity generation202420,035 GWh2024
Hydroelectric share of net generation202445.7%2024

Pages built on this dataset

Publisher

Organization
U.S. Energy Information Administration
Publisher’s dataset
Net Generation by State (EIA-923)
File or API used
https://www.eia.gov/electricity/data/state/annual_generation_state.xls
Methodology
https://www.eia.gov/electricity/data/state/

Coverage

Geography
All 50 states, the District of Columbia and the nation, since the source file already covers every state. Net electricity generation by energy source is stored for Idaho and the nation only. The hydroelectric share of net generation covers every state, the District of Columbia and the nation, wherever the source reports a hydroelectric row for that place and year (49 of 52).
Time coverage
1990-2024
Update frequency
Annual
Published
September 18, 2025
Retrieved
September 9, 2026
License of the records
Public domain. U.S. federal government work.
Rows
4,269 observations, 1990-2024

Measures

MeasureWhat it measuresUnit
Net electricity generationTotal net electricity generation from all producers and all energy sources by plants inside the state, for a calendar year. Electricity imported from other states is not included; a state can use far more than it generates.gwh
Net electricity generation by energy sourceNet electricity generation by plants inside the state from all producers, broken out by energy source, for a calendar year. Idaho and the US total only; imported electricity is not included.gwh
Hydroelectric share of net generationConventional hydroelectric net generation as a percentage of total net generation from all sources by plants inside the state, for a calendar year, for every state, DC and the nation. It is a share of what the state generates, not of what it uses: electricity imported from other states is outside both the numerator and the denominator. Computed by the puller, not published directly by EIA.percent

Caveats

  • Generation figures are net of plant use (station power), not gross generation.
  • The source publishes megawatthours; values here are divided by 1000 to store gigawatthours.
  • The by-source breakdown is stored for Idaho and the US only; a source is omitted for a year EIA collected none.
  • Hydro share excludes pumped storage, which EIA reports as a separate energy source.

How to cite

Understand Idaho, “Net Generation by State (EIA-923)”, compiled from U.S. Energy Information Administration, Net Generation by State (EIA-923). Retrieved September 9, 2026. https://understandidaho.com/data/eia-generation/.

Cite U.S. Energy Information Administration directly for the figures themselves.

This page was last updated .