Indicators / United States / Electricity
Carbon intensity of electricity generated
g CO₂e/kWh · U.S. Environmental Protection Agency, eGRID2024 (Cornerstone release of EPA’s Emissions & Generation Resource Integrated Database), via carbondata.dev · at the power plants in the state, combustion only; not the electricity used there
- United States, 2024
- 341 g CO₂e/kWh
- States with a figure
- 52 2024
- Counties
- none state figures only
Every state, 2024
| Rank | State | Carbon intensity of electricity generated | 1 yr | 5 yr | 10 yr |
|---|---|---|---|---|---|
| 1 | West Virginia | 883 g CO₂e/kWh | – | – | – |
| 2 | Kentucky | 789 g CO₂e/kWh | – | – | – |
| 3 | Wyoming | 759 g CO₂e/kWh | – | – | – |
| 4 | Puerto Rico | 726 g CO₂e/kWh | – | – | – |
| 5 | Missouri | 636 g CO₂e/kWh | – | – | – |
| 6 | Indiana | 626 g CO₂e/kWh | – | – | – |
| 7 | Hawaii | 624 g CO₂e/kWh | – | – | – |
| 8 | Utah | 607 g CO₂e/kWh | – | – | – |
| 9 | North Dakota | 606 g CO₂e/kWh | – | – | – |
| 10 | Wisconsin | 509 g CO₂e/kWh | – | – | – |
| 11 | Ohio | 470 g CO₂e/kWh | – | – | – |
| 12 | Colorado | 457 g CO₂e/kWh | – | – | – |
| 13 | Nebraska | 452 g CO₂e/kWh | – | – | – |
| 14 | Arkansas | 440 g CO₂e/kWh | – | – | – |
| 15 | Montana | 413 g CO₂e/kWh | – | – | – |
| 16 | Massachusetts | 389 g CO₂e/kWh | – | – | – |
| 17 | Rhode Island | 373 g CO₂e/kWh | – | – | – |
| 18 | Michigan | 371 g CO₂e/kWh | – | – | – |
| 19 | Alaska | 371 g CO₂e/kWh | – | – | – |
| 20 | Mississippi | 362 g CO₂e/kWh | – | – | – |
| 21 | Delaware | 361 g CO₂e/kWh | – | – | – |
| 22 | New Mexico | 348 g CO₂e/kWh | – | – | – |
| 23 | Florida | 347 g CO₂e/kWh | – | – | – |
| 24 | Texas | 336 g CO₂e/kWh | – | – | – |
| 25 | Alabama | 331 g CO₂e/kWh | – | – | – |
| 26 | Louisiana | 330 g CO₂e/kWh | – | – | – |
| 27 | Tennessee | 330 g CO₂e/kWh | – | – | – |
| 28 | Minnesota | 319 g CO₂e/kWh | – | – | – |
| 29 | North Carolina | 306 g CO₂e/kWh | – | – | – |
| 30 | Georgia | 301 g CO₂e/kWh | – | – | – |
| 31 | Oklahoma | 300 g CO₂e/kWh | – | – | – |
| 32 | Pennsylvania | 298 g CO₂e/kWh | – | – | – |
| 33 | Kansas | 292 g CO₂e/kWh | – | – | – |
| 34 | Arizona | 290 g CO₂e/kWh | – | – | – |
| 35 | Nevada | 278 g CO₂e/kWh | – | – | – |
| 36 | South Carolina | 271 g CO₂e/kWh | – | – | – |
| 37 | Virginia | 266 g CO₂e/kWh | – | – | – |
| 38 | Iowa | 256 g CO₂e/kWh | – | – | – |
| 39 | Maryland | 256 g CO₂e/kWh | – | – | – |
| 40 | Connecticut | 229 g CO₂e/kWh | – | – | – |
| 41 | New York | 219 g CO₂e/kWh | – | – | – |
| 42 | New Jersey | 207 g CO₂e/kWh | – | – | – |
| 43 | Illinois | 205 g CO₂e/kWh | – | – | – |
| 44 | Maine | 183 g CO₂e/kWh | – | – | – |
| 45 | Oregon | 169 g CO₂e/kWh | – | – | – |
| 46 | California | 165 g CO₂e/kWh | – | – | – |
| 47 | District of Columbia | 158 g CO₂e/kWh | – | – | – |
| 48 | Idaho | 145 g CO₂e/kWh | – | – | – |
| 49 | South Dakota | 140 g CO₂e/kWh | – | – | – |
| 50 | New Hampshire | 134 g CO₂e/kWh | – | – | – |
| 51 | Washington | 104 g CO₂e/kWh | – | – | – |
| 52 | Vermont | 26 g CO₂e/kWh | – | – | – |
Rank 1 is the highest value, which here is the worst. States are the 50 states, DC, Puerto Rico and the Virgin Islands where they have a figure.
Get this data
This page's numbers, as JSON:
curl https://visualizedata.org/data/us-indicators/us-grid-co2.jsonEvery place from carbondata.dev (live, no key; U.S. Environmental Protection Agency data, this exact version):
curl "https://api.carbondata.dev/v1/emission-factors@2026-10-26.9066876ca5/download/emission-factors.parquet"Source
- U.S. Environmental Protection Agency, eGRID2024 (Cornerstone release of EPA’s Emissions & Generation Resource Integrated Database) (CC BY 4.0 (Cornerstone release)): eGRID2024 state total output emission rate, CO₂e (STC2ERTA).
- Read through carbondata.dev, dataset emission-factors, version 2026-10-26.9066876ca5; its 1 input files from the U.S. Environmental Protection Agency are named with their sha256 in this page's data, and the site's checks recompute every figure from them.
- eGRID's state rate is the emissions of the power plants located in the state per megawatt-hour they generate (CO₂, methane and nitrous oxide as CO₂e, combustion only). A state that imports much of its power, or exports it, uses electricity that is cleaner or dirtier than this. EPA publishes an edition every year or two, so there is one year and no trend; the countries' figure from Ember is a lifecycle number and not comparable with it.
- EPA publishes a new eGRID edition every year or two; carbondata.dev adds each edition on purpose.
- Built 2026-10-27.