Jeffrey Energy Center
ST. MARYS, KS · POTTAWATOMIE COUNTY · NAICS 221112
Data updated May 2026
Jeffrey Energy Center sits in the upper third of EPA GHGRP reporters by latest CO₂e (#47 of 8,713 nationally, #2 of 140 in KS).
- National rank #47 of 8,713 GHGRP facilities
- #2 of 140 in KS
- #39 of 1,732 in Power Plants
- 30.8% of EVERGY parent CO₂e
- 2023 mix: 0.5% non-CO₂ (N₂O-led)
- -58.6% since 2011
Jeffrey Energy Center vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
6,117,109 47th of 8713 higher than 8,666 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 30.8% of EVERGY reported parent CO₂e (6.1M MT of 19.9M MT ; #2 of 12 GHGRP facilities under that parent ). Inside the EPA Power Plants sector it ranks #39 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 6.1M MT CO₂e reported for 2023, non-CO₂ gases are 0.5% , led by N₂O at 0.5% . Component shares use this facility's GHGRP CO₂ / CH₄ / N₂O rows for that year (already CO₂e-weighted).
- CO₂
- 99.5%
- 6.1M MT
- CH₄
- 0%
- 2K MT
- N₂O
- 0.5%
- 30K MT
Emissions decline across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 6,117,109 |
| 2022 | 9,449,839 |
| 2021 | 8,759,787 |
| 2020 | 7,429,226 |
| 2019 | 7,300,331 |
| 2018 | 10,010,016 |
| 2017 | 11,494,053 |
| 2016 | 10,905,423 |
| 2015 | 12,651,906 |
| 2014 | 12,590,095 |
| 2013 | 14,740,869 |
| 2012 | 12,691,116 |
| 2011 | 14,792,984 |
Facility insight: Jeffrey Energy Center
Jeffrey Energy Center (GHGRP ID 1000581) is a high-volume reporter at 6.1M MT CO₂e in 2023 from ST. MARYS, KS (#47 of 8,713 nationally) under Power Plants (NAICS 221112).
Across 2011–2023, annual CO₂e fell 58.6%; peak load was 14.8M MT in 2011. This facility has filed every year from 2011 to 2023, a complete 13-year record.
Peak year was 2011 at 14.8M MT CO2e; latest 2023 sits 58.6% below that peak (6.1M MT). The largest year-to-year move was 2022→2023 (-35.3%, 3.3M MT).
Frequently Asked Questions
Where does Jeffrey Energy Center rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Jeffrey Energy Center ranks #47 of 8,713 reporting facilities by latest reported CO₂e, and #2 of 140 facilities in KS (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than Jeffrey Energy Center? ▼
Jeffrey Energy Center's 6.1M MT CO₂e is higher than 8,666 of the 8,713 GHGRP facilities with reported emissions (99%), an exact count from the full corpus, not an estimate.
How much CO2 does Jeffrey Energy Center emit? ▼
Jeffrey Energy Center reported 6.1M MT CO2e in 2023.
What share of EVERGY does Jeffrey Energy Center represent? ▼
Jeffrey Energy Center accounts for 30.8% of EVERGY's reported GHGRP CO₂e (6.1M MT of 19.9M MT), ranking #2 of 12 facilities under that parent.
What is Jeffrey Energy Center's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 0.5% of reported CO₂e at Jeffrey Energy Center, with N₂O the larger non-CO₂ share at 0.5% (CO₂ 99.5%). Shares use the facility's GHGRP gas components for that year.
Where does Jeffrey Energy Center rank inside Power Plants? ▼
Among EPA GHGRP facilities tagged Power Plants, Jeffrey Energy Center ranks #39 of 1,732 by latest reported CO₂e.
Is Jeffrey Energy Center reducing emissions? ▼
Over 13 reporting years (2011–2023), Jeffrey Energy Center's emissions have decreased by 58.6%. This suggests meaningful progress in emissions reduction.
Nationwide facilities with similar CO₂e or sector
Peer sets outside KS for a top-third GHGRP emitter: CO₂e totals first, then Power Plants neighbors.
Similar reported CO₂e
Nearest latest-year facility totals outside KS (6.1M MT here).
Similar Power Plants CO₂e
Nearest same-sector facility totals outside KS.