Annual net generation by plant
How much electricity each published plant delivered in each calendar year, from the annual Form EIA-923 survey. Use it to compare plants and years; a plant EIA did not list for a year has no row, not a zero.
At a glance
- Period
- 2015–2024
- One row is
- published plant x report year
- Built from source rows of
- plant x prime mover x energy source x report year
- Evidence and method
- reported · derived
- Origin
- U.S. EIA Form 923 Schedule 3 (generation and fuel, nuclear combined at plant/prime-mover grain) ↗Source notice and licenceLicence: CC-BY-4.0
- Edition in this release
- PUDL v2026.9.0 (embedded 2026.8.1.dev50) ·
out_eia923__yearly_generation_fuel_combined· retrieved 2026-09-29 - Download
- generation_plant_year.parquet ↓5,581 rows · 27 KB
Measures
| Column | Unit | What it measures |
|---|---|---|
net_generation_mwh | MWh | Net generation for the calendar year as reported on Form EIA-923: the sum of the plant's unique prime mover x energy source rows, kept signed. Null when none of the plant's rows for that year carries a value. |
Coverage by year
755 published plants| Year | Plants listed | Share of published | With a value | Listed, no value | Not listed | Final / provisional / unknown |
|---|---|---|---|---|---|---|
| 2015 | 455 | 60.3% | 455 | 0 | 300 | 455 / 0 / 0 |
| 2016 | 475 | 62.9% | 475 | 0 | 280 | 475 / 0 / 0 |
| 2017 | 514 | 68.1% | 514 | 0 | 241 | 514 / 0 / 0 |
| 2018 | 530 | 70.2% | 530 | 0 | 225 | 530 / 0 / 0 |
| 2019 | 540 | 71.5% | 540 | 0 | 215 | 540 / 0 / 0 |
| 2020 | 594 | 78.7% | 594 | 0 | 161 | 594 / 0 / 0 |
| 2021 | 601 | 79.6% | 601 | 0 | 154 | 601 / 0 / 0 |
| 2022 | 615 | 81.5% | 615 | 0 | 140 | 615 / 0 / 0 |
| 2023 | 621 | 82.3% | 621 | 0 | 134 | 621 / 0 / 0 |
| 2024 | 636 | 84.2% | 636 | 0 | 119 | 636 / 0 / 0 |
What is missing, and why
- Listed without a reported valueListed for the year with no net generation value on any row; published as null with quality missing0 plant-years
- No row in the sourcePublished plants with no EIA-923 row for a year in the window. The inventory is one snapshot, so the table cannot tell a plant not yet built or already retired from one that did not report1,969 plant-years
- Outside the atlas frameEIA-923 rows in the window for plants outside the frame authorities and the core states139,797 source rows
- In the source, not yet includedEIA-923 rows for published plants in years outside the window: present in the source edition, not yet included: 2001–2014, 20256,820 source rows
How often it changes
Checked 2026-09-21- Publisher
- EIA releases Form EIA-923 data monthly, and once a year as final annual data.www.eia.gov/electricity/data/eia923/ ↗
- Delay
- On the checked date EIA's latest monthly release, dated August 26, 2026, carried June 2026 data; final 2025 annual data was released September 14, 2026, and the next annual release was listed as September 2027 for 2026 final data.www.eia.gov/electricity/data/eia923/ ↗
- This atlas
- The atlas reads EIA-923 through PUDL, which Catalyst Cooperative publishes as quarterly versioned releases. Each atlas release pins one PUDL version, named under edition; the table changes only when that pin moves. No timed refresh.docs.catalyst.coop/pudl/en/v2026.9.0/data_access.html ↗
Checks and corrections
- Passed
keys.generation_component_unique{"distinct":6781,"rows":6781} - Passed
generation.null_not_zero{"plant_years_null":0,"plant_years_zero":131} - Passed
generation.negative_retained{"negative_rows":70} - Passed
reconcile.raw_workbook_spot_checks{"matched":86,"mismatches":[],"plants":[6163,3845,55103,6076,3921],"total":86}
No corrections apply to this dataset in this release. Earlier editions: not available (earlier releases did not retain per-dataset edition comparisons).
Release 20260929T050546Z-51ae0f7d3c78