Cheyenne Prairie Generating Station
Cheyenne, WY · LARAMIE COUNTY · NAICS 221112
Data updated May 2026
Cheyenne Prairie Generating Station sits in the upper third of EPA GHGRP reporters by latest CO₂e (#1,765 of 8,713 nationally, #28 of 132 in WY).
- National rank #1,765 of 8,713 GHGRP facilities
- #28 of 132 in WY
- #837 of 1,732 in Power Plants
- 5.3% of BLACK HILLS parent CO₂e
- 2023 mix: 0.1% non-CO₂ (N₂O-led)
- +266.4% since 2015
Cheyenne Prairie Generating Station vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
182,458 1765th of 8713 higher than 6,948 of 8,713 facilities
GHGRP facilities, banded by latest reported CO₂e (MT)
Each bar is a band; taller bars hold more facilities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA Greenhouse Gas Reporting Program · 2023
Facility footprint context
This site accounts for 5.3% of BLACK HILLS reported parent CO₂e (182K MT of 3.5M MT ; #5 of 7 GHGRP facilities under that parent ). Inside the EPA Power Plants sector it ranks #837 of 1,732 facilities by latest CO₂e. Shares use GHGRP facility rollups only, not Scope 2/3 or non-reporting sites.
2023 gas mix desk
Of 182K MT CO₂e reported for 2023, non-CO₂ gases are 0.1% , led by N₂O at 0.1% . Component shares use this facility's GHGRP CO₂ / CH₄ / N₂O rows for that year (already CO₂e-weighted).
- CO₂
- 99.9%
- 182K MT
- CH₄
- 0%
- 85 MT
- N₂O
- 0.1%
- 101 MT
Emissions growth across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 182,458 |
| 2022 | 124,939 |
| 2021 | 156,807 |
| 2020 | 154,692 |
| 2019 | 137,224 |
| 2018 | 82,841 |
| 2017 | 56,463 |
| 2016 | 73,234 |
| 2015 | 49,797 |
Facility insight: Cheyenne Prairie Generating Station
Cheyenne Prairie Generating Station (GHGRP ID 1012045) is a high-volume reporter at 182K MT CO₂e in 2023 from Cheyenne, WY (#1,765 of 8,713 nationally) under Power Plants (NAICS 221112).
From 2015 to 2023, reported CO₂e rose 266.4% (peak 182K MT). This facility has filed every year from 2015 to 2023, a complete 9-year record.
Frequently Asked Questions
Where does Cheyenne Prairie Generating Station rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Cheyenne Prairie Generating Station ranks #1,765 of 8,713 reporting facilities by latest reported CO₂e, and #28 of 132 facilities in WY (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than Cheyenne Prairie Generating Station? ▼
Cheyenne Prairie Generating Station's 182K MT CO₂e is higher than 6,948 of the 8,713 GHGRP facilities with reported emissions (80%), an exact count from the full corpus, not an estimate.
How much CO2 does Cheyenne Prairie Generating Station emit? ▼
Cheyenne Prairie Generating Station reported 182K MT CO2e in 2023.
What share of BLACK HILLS does Cheyenne Prairie Generating Station represent? ▼
Cheyenne Prairie Generating Station accounts for 5.3% of BLACK HILLS's reported GHGRP CO₂e (182K MT of 3.5M MT), ranking #5 of 7 facilities under that parent.
What is Cheyenne Prairie Generating Station's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 0.1% of reported CO₂e at Cheyenne Prairie Generating Station, with N₂O the larger non-CO₂ share at 0.1% (CO₂ 99.9%). Shares use the facility's GHGRP gas components for that year.
Where does Cheyenne Prairie Generating Station rank inside Power Plants? ▼
Among EPA GHGRP facilities tagged Power Plants, Cheyenne Prairie Generating Station ranks #837 of 1,732 by latest reported CO₂e.
Is Cheyenne Prairie Generating Station reducing emissions? ▼
Over 9 reporting years (2015–2023), Cheyenne Prairie Generating Station's emissions have increased by 266.4%. This may reflect expanded operations or increased production.
Nationwide facilities with similar CO₂e or sector
Peer sets outside WY for a top-third GHGRP emitter: CO₂e totals first, then Power Plants neighbors.
Similar reported CO₂e
Nearest latest-year facility totals outside WY (182K MT here).
Similar Power Plants CO₂e
Nearest same-sector facility totals outside WY.