Key City/Wilmarth Plant
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Mankato, MN · BLUE EARTH COUNTY · NAICS 221112
Data updated May 2026
Annual Emissions History
| 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. The site is classified under Power Plants with NAICS code 221112.
The facility has 13 years of reported data on record, covering the 2011–2023 window. Over that period, annual CO2e emissions declined by 11.1%, with the peak observed year showing up to 99K MT CO2e.
Emissions Analysis
Key City/Wilmarth Plant reports 70K MT CO2e, placing it among smaller reporting facilities in the GHGRP.
Frequently Asked Questions
How much CO2 does Key City/Wilmarth Plant emit? ▼
Key City/Wilmarth Plant reported 70K MT CO2e in 2023.
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.