Annual US power-plant generation-mix intelligence from Form EIA-923 (2020-2025): per-plant net generation by canonical fuel group, fuel-group shares, primary fuel, fossil vs renewable shares, 5-year mix trends, coal-phaseout watch flags, and a documented 0-100 transition score ranked per year. U.S. EIA public domain (commercial reuse allowed); derived mixes, trends, scores, ranks, tiers and flags computed by the Datazimuts connector.

Source: EIA-923 US power-plant generation-mix transition intelligence
Rows: 73,124
Columns: 36
Source cadence: Yearly
Last refreshed: Sep 27, 2026
Theme: energy

Column	Type	Description
plant_id	integer	Stable EIA plant identifier (join key across years).
plant_name	string	Plant name as reported (modal value across the year's rows).
operator_name	string	Operator name as reported (modal value).
state	string	USPS state abbreviation of the plant (PR included).
country_code	string	ISO alpha-3 country code (USA for all rows).
year	integer	Reference year (annual EIA-923 final data).
as_of	string	Latest final year in the snapshot (pinned for idempotent re-runs).
total_netgen_mwh	float	Annual net generation, all fuel groups summed (MWh). Negative for net consumers (e.g. pumped storage); zero for reporting plants with no generation. (unit: MWh)
n_fuel_groups	integer	Number of distinct fuel groups the plant reported.
primary_fuel	string	Fuel group with the largest generation share; null when total net generation <= 0.
share_coal	float	Share of the plant's (or state's) annual net generation from this fuel group, 0-1 (MER fuel-code aggregation; see connector docs). Null when total net generation <= 0. (unit: share)
share_natural_gas	float	Share of the plant's (or state's) annual net generation from this fuel group, 0-1 (MER fuel-code aggregation; see connector docs). Null when total net generation <= 0. (unit: share)
share_nuclear	float	Share of the plant's (or state's) annual net generation from this fuel group, 0-1 (MER fuel-code aggregation; see connector docs). Null when total net generation <= 0. (unit: share)
share_hydro	float	Share of the plant's (or state's) annual net generation from this fuel group, 0-1 (MER fuel-code aggregation; see connector docs). Null when total net generation <= 0. (unit: share)
share_wind	float	Share of the plant's (or state's) annual net generation from this fuel group, 0-1 (MER fuel-code aggregation; see connector docs). Null when total net generation <= 0. (unit: share)
share_solar	float	Share of the plant's (or state's) annual net generation from this fuel group, 0-1 (MER fuel-code aggregation; see connector docs). Null when total net generation <= 0. (unit: share)
share_geothermal	float	Share of the plant's (or state's) annual net generation from this fuel group, 0-1 (MER fuel-code aggregation; see connector docs). Null when total net generation <= 0. (unit: share)
share_petroleum	float	Share of the plant's (or state's) annual net generation from this fuel group, 0-1 (MER fuel-code aggregation; see connector docs). Null when total net generation <= 0. (unit: share)
share_biomass_waste	float	Share of the plant's (or state's) annual net generation from this fuel group, 0-1 (MER fuel-code aggregation; see connector docs). Null when total net generation <= 0. (unit: share)
share_other_gases	float	Share of the plant's (or state's) annual net generation from this fuel group, 0-1 (MER fuel-code aggregation; see connector docs). Null when total net generation <= 0. (unit: share)
share_other	float	Share of the plant's (or state's) annual net generation from this fuel group, 0-1 (MER fuel-code aggregation; see connector docs). Null when total net generation <= 0. (unit: share)
fossil_share	float	share_coal + share_natural_gas + share_petroleum + share_other_gases. (unit: share)
renewable_share	float	share_hydro + share_wind + share_solar + share_geothermal + share_biomass_waste. (unit: share)
coal_share_change_5y_pp	float	Coal share change over the 2020->latest window (percentage points); null for non-latest years and when an endpoint is missing. (unit: percentage points)
gas_share_change_5y_pp	float	Natural-gas share change over the 2020->latest window (percentage points); null for non-latest years. (unit: percentage points)
renewable_share_change_5y_pp	float	Renewable share change over the 2020->latest window (percentage points); null for non-latest years. (unit: percentage points)
fossil_share_change_5y_pp	float	Fossil share change over the 2020->latest window (percentage points); null for non-latest years. (unit: percentage points)
transition_score	float	0-100 generation-mix transition score: 100(0.50min-max renewable_share + 0.30min-max(-fossil share 5y change) + 0.20min-max(-coal share 5y change)), min-max across plants with positive generation within the year; null when total_netgen_mwh <= 0. (unit: score)
transition_rank	string	Per-year transition rank (1 = furthest along); ties broken by renewable share desc, plant_id asc; null when unscored.
transition_tier	string	t1 leaders (>=70) / t2 transitioning (>=45) / t3 stable (>=20) / t4 laggards (<20); null when unscored.
coal_phaseout_watch	integer	1 when the coal share fell by more than 25 points over the window, or fell to zero from above 10% in the base year.
rapid_renewable_growth	integer	1 when the renewable share rose by 25+ points over the window.
fossil_heavy	integer	1 when fossil_share > 0.90.
zero_generation	integer	1 when the plant reported zero net generation.
row_hash	string	SHA-256 (truncated) of the row's content fields.
source_retrieved	string	Source data vintage: latest final year present in the retrieved workbooks (content-pinned so identical re-fetches hash identically).

First 10 sample rows — a preview, not the complete dataset.

plant_id	plant_name	operator_name	state	country_code	year	as_of	total_netgen_mwh	n_fuel_groups	primary_fuel	share_coal	share_natural_gas	share_hydro	share_solar	share_petroleum	share_other	fossil_share	renewable_share	coal_share_change_5y_pp	gas_share_change_5y_pp	renewable_share_change_5y_pp	fossil_share_change_5y_pp	transition_score	transition_rank	transition_tier	row_hash	source_retrieved
50,933	Rhinelander Mill	Ahlstrom-Munksjo	WI	USA	2,020	2025-12-31	3,045	4	hydro	-1.004	-2.163	4.179	0	-0.012	0	-3.179	4.179	—	—	—	—	75	1	t1	4769ea3ea717a812	2025-12-31
58,256	Los Alamos PV Site	Los Alamos County	NM	USA	2,020	2025-12-31	392	2	solar	0	0	0	2.661	0	-1.661	0	2.661	—	—	—	—	56.83	2	t2	da8815d1c0d1794f	2025-12-31
62,383	GMP Solar/Storage-Essex Hybrid	Green Mountain Power Corp	VT	USA	2,020	2025-12-31	5,767	2	solar	0	0	0	1.237	0	-0.237	0	1.237	—	—	—	—	39.8	3	t3	eac53e5641cd20db	2025-12-31
62,381	GMP Solar/Storage-Milton Hybrid	Green Mountain Power Corp	VT	USA	2,020	2025-12-31	6,067	2	solar	0	0	0	1.226	0	-0.226	0	1.226	—	—	—	—	39.67	4	t3	64006b5e5ca7cf24	2025-12-31
62,382	GMP Solar/Storage-Ferrisburgh Hybrid	Green Mountain Power Corp	VT	USA	2,020	2025-12-31	6,998	2	solar	0	0	0	1.196	0	-0.196	0	1.196	—	—	—	—	39.31	5	t3	ec5f313a5cf5e00f	2025-12-31
60,996	Iron Horse Battery Storage Hybrid	Iron Horse Battery Storage, LLC	AZ	USA	2,020	2025-12-31	3,063	2	solar	0	0	0	1.104	0	-0.104	0	1.104	—	—	—	—	38.21	6	t3	39ebae74be75e753	2025-12-31
60,562	GMP Solar - Panton Hybrid	Green Mountain Power Corp	VT	USA	2,020	2025-12-31	7,663	2	solar	0	0	0	1.082	0	-0.082	0	1.082	—	—	—	—	37.95	7	t3	25329317c9a58381	2025-12-31
6,125	Shrewsbury	Town of Shrewsbury - (MA)	MA	USA	2,020	2025-12-31	4,866	3	solar	0	-0.05	0	1.055	-0.006	0	-0.055	1.055	—	—	—	—	37.63	8	t3	1f6fbba3d653a4ef	2025-12-31
62,027	Caldwell Wastewater Treatment Plant Hybrid	Caldwell Wastewater Treatment Plant	NJ	USA	2,020	2025-12-31	884	2	solar	0	0	0	1.043	0	-0.043	0	1.043	—	—	—	—	37.48	9	t3	829291ae5f8465de	2025-12-31
61,136	Horizon Energy (PR) Hybrid	Horizon Energy LLC	PR	USA	2,020	2025-12-31	22,319	2	solar	0	0	0	1.042	0	-0.042	0	1.042	—	—	—	—	37.46	10	t3	27c232122b8160f7	2025-12-31

Sep 27, 2026Current
20260927T183225Z-1e315e96c32c · sha256 1e315e96c32c…
73,124 rows · first snapshot

Point any LLM at the metadata endpoint — the documentation above is machine-readable too (JSON-LD + Croissant).

cURL

curl "https://datazimuts.com/v1/datasets/eia923_plant_generation_mix_intel/us_plant_generation_mix_annual" | jq '{title, rows, columns_count, license}'

Python

import requests

ds = requests.get("https://datazimuts.com/v1/datasets/eia923_plant_generation_mix_intel/us_plant_generation_mix_annual").json()
print(ds["title"], ds["rows"], "rows")

# Sample rows for an LLM context window
for row in ds.get("sample_rows", [])[:5]:
    print(row)

API endpoint: https://datazimuts.com/v1/datasets/eia923_plant_generation_mix_intel/us_plant_generation_mix_annual

Tip: fetch /llms.txt for the full machine-readable catalog.

Where this data comes from and what was made from it. Other people's work shows as counts; only shared projects are named.

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Pinned to snapshot 20260927T183225Z-1e315e96c32c and its content hash, so readers get exactly the data you used.

APA

EIA-923 US power-plant generation-mix transition intelligence. (2026). US power-plant generation-mix intelligence (annual) [Data set, snapshot 20260927T183225Z-1e315e96c32c, sha256 1e315e96c32c]. Datazimuts. Retrieved 2026-09-27, from https://datazimuts.com/en/datasets/eia923_plant_generation_mix_intel/us_plant_generation_mix_annual?snapshot=20260927T183225Z-1e315e96c32c

BibTeX

@misc{dz_eia923_plant_generation_mix_intel_us_pla_1e315e96,
  title        = {{US power-plant generation-mix intelligence (annual)}},
  author       = {{EIA-923 US power-plant generation-mix transition intelligence}},
  year         = {2026},
  publisher    = {Datazimuts},
  howpublished = {\url{https://datazimuts.com/en/datasets/eia923_plant_generation_mix_intel/us_plant_generation_mix_annual?snapshot=20260927T183225Z-1e315e96c32c}},
  note         = {Snapshot 20260927T183225Z-1e315e96c32c, sha256 1e315e96c32c23f7189050d5481f5e98cac9ba426356dd30e302b9a85f3714d8; accessed 2026-09-27}
}

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