Key City/Wilmarth Plant
Mankato, MN · BLUE EARTH COUNTY · NAICS 221112
Data updated May 2026
According to the EPA Greenhouse Gas Reporting Program, Key City/Wilmarth Plant ranks #3,375 of 8,713 U.S. reporting facilities by latest reported CO₂e and #63 of 158 facilities in MN.
- National rank #3,375 of 8,713 GHGRP facilities
- #63 of 158 in MN
- #1,061 of 1,732 in Power Plants
- 0.2% of XCEL ENERGY parent CO₂e
- 2023 mix: 5.1% non-CO₂ (N₂O-led)
- -11.1% since 2011
Key City/Wilmarth Plant vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
70,205 3375th of 8713 higher than 5,338 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 0.2% of XCEL ENERGY reported parent CO₂e (70K MT of 29.0M MT ; #22 of 28 GHGRP facilities under that parent ). Inside the EPA Power Plants sector it ranks #1,061 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 70K MT CO₂e reported for 2023, non-CO₂ gases are 5.1% , led by N₂O at 3.1% . Component shares use this facility's GHGRP CO₂ / CH₄ / N₂O rows for that year (already CO₂e-weighted).
- CO₂
- 94.9%
- 67K MT
- CH₄
- 2%
- 1K MT
- N₂O
- 3.1%
- 2K MT
Emissions decline across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 70,205 |
| 2022 | 69,577 |
| 2021 | 75,604 |
| 2020 | 98,517 |
| 2019 | 78,886 |
| 2018 | 70,768 |
| 2017 | 58,024 |
| 2016 | 84,073 |
| 2015 | 95,195 |
| 2014 | 80,994 |
| 2013 | 83,041 |
| 2012 | 78,846 |
| 2011 | 78,968 |
Facility insight: Key City/Wilmarth Plant
Key City/Wilmarth Plant (EPA GHGRP Facility ID 1003410) reported 70K metric tons of CO2-equivalent in 2023, operating in Mankato, MN within BLUE EARTH COUNTY. Among GHGRP reporters it ranks #3,375 of 8,713 nationally by latest CO₂e and #63 of 158 in MN. The site is classified under Power Plants with NAICS code 221112.
Across 2011–2023, annual CO₂e fell 11.1%; peak load was 99K MT in 2020. This facility has filed every year from 2011 to 2023, a complete 13-year record.
Peak year was 2020 at 99K MT CO2e; latest 2023 sits 28.7% below that peak (70K MT). The largest year-to-year move was 2016→2017 (-31.0%, 26K MT).
Frequently Asked Questions
Where does Key City/Wilmarth Plant rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Key City/Wilmarth Plant ranks #3,375 of 8,713 reporting facilities by latest reported CO₂e, and #63 of 158 facilities in MN (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than Key City/Wilmarth Plant? ▼
Key City/Wilmarth Plant's 70K MT CO₂e is higher than 5,338 of the 8,713 GHGRP facilities with reported emissions (61%), an exact count from the full corpus, not an estimate.
How much CO2 does Key City/Wilmarth Plant emit? ▼
Key City/Wilmarth Plant reported 70K MT CO2e in 2023.
What share of XCEL ENERGY does Key City/Wilmarth Plant represent? ▼
Key City/Wilmarth Plant accounts for 0.2% of XCEL ENERGY's reported GHGRP CO₂e (70K MT of 29.0M MT), ranking #22 of 28 facilities under that parent.
What is Key City/Wilmarth Plant's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 5.1% of reported CO₂e at Key City/Wilmarth Plant, with N₂O the larger non-CO₂ share at 3.1% (CO₂ 94.9%). Shares use the facility's GHGRP gas components for that year.
Where does Key City/Wilmarth Plant rank inside Power Plants? ▼
Among EPA GHGRP facilities tagged Power Plants, Key City/Wilmarth Plant ranks #1,061 of 1,732 by latest reported CO₂e.
Is Key City/Wilmarth Plant reducing emissions? ▼
Over 13 reporting years (2011–2023), Key City/Wilmarth Plant's emissions have decreased by 11.1%. This suggests meaningful progress in emissions reduction.
Nationwide facilities with similar CO₂e or sector
Two GHGRP-derived peer sets for Key City/Wilmarth Plant, both outside MN so the neighborhoods are not state-geo containment.
Similar reported CO₂e
Nearest latest-year facility totals outside MN (70K MT here).
Similar Power Plants CO₂e
Nearest same-sector facility totals outside MN.