Mankato Energy Center
MANKATO, MN · Blue Earth · NAICS 221112
Data updated May 2026
Mankato Energy Center sits in the upper third of EPA GHGRP reporters by latest CO₂e (#588 of 8,713 nationally, #5 of 158 in MN).
- National rank #588 of 8,713 GHGRP facilities
- #5 of 158 in MN
- #432 of 1,732 in Power Plants
- 69.8% of SOUTHWEST GENERATION OPERATING CO parent CO₂e
- 2023 mix: 0.1% non-CO₂ (N₂O-led)
- +626.6% since 2011
Mankato Energy Center vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
1,075,185 588th of 8713 higher than 8,125 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 69.8% of SOUTHWEST GENERATION OPERATING CO reported parent CO₂e (1.1M MT of 1.5M MT ; #1 of 5 GHGRP facilities under that parent ). Inside the EPA Power Plants sector it ranks #432 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 1.1M 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%
- 1.1M MT
- CH₄
- 0%
- 498 MT
- N₂O
- 0.1%
- 594 MT
Emissions growth across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 1,075,185 |
| 2022 | 730,361 |
| 2021 | 1,173,841 |
| 2020 | 1,129,033 |
| 2019 | 843,734 |
| 2018 | 220,704 |
| 2017 | 302,455 |
| 2016 | 363,370 |
| 2015 | 197,463 |
| 2014 | 156,722 |
| 2013 | 251,613 |
| 2012 | 208,781 |
| 2011 | 147,977 |
Facility insight: Mankato Energy Center
Mankato Energy Center (GHGRP ID 1000437) is a high-volume reporter at 1.1M MT CO₂e in 2023 from MANKATO, MN (#588 of 8,713 nationally) under Power Plants (NAICS 221112).
From 2011 to 2023, reported CO₂e rose 626.6% (peak 1.2M MT). This facility has filed every year from 2011 to 2023, a complete 13-year record.
Peak year was 2021 at 1.2M MT CO2e; latest 2023 sits 8.4% below that peak (1.1M MT). The largest year-to-year move was 2018→2019 (+282.3%, 623K MT).
Frequently Asked Questions
Where does Mankato Energy Center rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Mankato Energy Center ranks #588 of 8,713 reporting facilities by latest reported CO₂e, and #5 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 Mankato Energy Center? ▼
Mankato Energy Center's 1.1M MT CO₂e is higher than 8,125 of the 8,713 GHGRP facilities with reported emissions (93%), an exact count from the full corpus, not an estimate.
How much CO2 does Mankato Energy Center emit? ▼
Mankato Energy Center reported 1.1M MT CO2e in 2023.
What share of SOUTHWEST GENERATION OPERATING CO does Mankato Energy Center represent? ▼
Mankato Energy Center accounts for 69.8% of SOUTHWEST GENERATION OPERATING CO's reported GHGRP CO₂e (1.1M MT of 1.5M MT), ranking #1 of 5 facilities under that parent.
What is Mankato Energy Center's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 0.1% of reported CO₂e at Mankato Energy Center, 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 Mankato Energy Center rank inside Power Plants? ▼
Among EPA GHGRP facilities tagged Power Plants, Mankato Energy Center ranks #432 of 1,732 by latest reported CO₂e.
Is Mankato Energy Center reducing emissions? ▼
Over 13 reporting years (2011–2023), Mankato Energy Center's emissions have increased by 626.6%. This may reflect expanded operations or increased production.
Nationwide facilities with similar CO₂e or sector
Peer sets outside MN for a top-third GHGRP emitter: CO₂e totals first, then Power Plants neighbors.
Similar reported CO₂e
Nearest latest-year facility totals outside MN (1.1M MT here).
Similar Power Plants CO₂e
Nearest same-sector facility totals outside MN.