Marion
MARION, IL · Williamson · NAICS 221112
Data updated May 2026
Marion sits in the upper third of EPA GHGRP reporters by latest CO₂e (#615 of 8,713 nationally, #23 of 299 in IL).
- National rank #615 of 8,713 GHGRP facilities
- #23 of 299 in IL
- #446 of 1,732 in Power Plants
- 100% of SOUTHERN ILLINOIS POWER COOPERATIVE parent CO₂e
- 2023 mix: 0.7% non-CO₂ (N₂O-led)
- -54.0% since 2011
Marion vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
1,047,164 615th of 8713 higher than 8,098 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 100% of SOUTHERN ILLINOIS POWER COOPERATIVE reported parent CO₂e (1.0M MT of 1.0M MT ). Inside the EPA Power Plants sector it ranks #446 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 1.0M MT CO₂e reported for 2023, non-CO₂ gases are 0.7% , led by N₂O at 0.5% . Component shares use this facility's GHGRP CO₂ / CH₄ / N₂O rows for that year (already CO₂e-weighted).
- CO₂
- 99.3%
- 1.0M MT
- CH₄
- 0.3%
- 3K MT
- N₂O
- 0.5%
- 5K MT
Emissions decline across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 1,047,164 |
| 2022 | 1,130,908 |
| 2021 | 998,643 |
| 2020 | 1,240,276 |
| 2019 | 2,180,565 |
| 2018 | 2,245,759 |
| 2017 | 2,119,933 |
| 2016 | 2,092,587 |
| 2015 | 2,341,330 |
| 2014 | 2,275,654 |
| 2013 | 2,357,030 |
| 2012 | 2,368,882 |
| 2011 | 2,274,630 |
Facility insight: Marion
Marion (GHGRP ID 1001530) is a high-volume reporter at 1.0M MT CO₂e in 2023 from MARION, IL (#615 of 8,713 nationally) under Power Plants (NAICS 221112).
Across 2011–2023, annual CO₂e fell 54.0%; peak load was 2.4M MT in 2012. This facility has filed every year from 2011 to 2023, a complete 13-year record.
Peak year was 2012 at 2.4M MT CO2e; latest 2023 sits 55.8% below that peak (1.0M MT). The largest year-to-year move was 2019→2020 (-43.1%, 940K MT).
Frequently Asked Questions
Where does Marion rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Marion ranks #615 of 8,713 reporting facilities by latest reported CO₂e, and #23 of 299 facilities in IL (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than Marion? ▼
Marion's 1.0M MT CO₂e is higher than 8,098 of the 8,713 GHGRP facilities with reported emissions (93%), an exact count from the full corpus, not an estimate.
How much CO2 does Marion emit? ▼
Marion reported 1.0M MT CO2e in 2023.
What share of SOUTHERN ILLINOIS POWER COOPERATIVE does Marion represent? ▼
Marion accounts for 100% of SOUTHERN ILLINOIS POWER COOPERATIVE's reported GHGRP CO₂e (1.0M MT of 1.0M MT).
What is Marion's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 0.7% of reported CO₂e at Marion, with N₂O the larger non-CO₂ share at 0.5% (CO₂ 99.3%). Shares use the facility's GHGRP gas components for that year.
Where does Marion rank inside Power Plants? ▼
Among EPA GHGRP facilities tagged Power Plants, Marion ranks #446 of 1,732 by latest reported CO₂e.
Is Marion reducing emissions? ▼
Over 13 reporting years (2011–2023), Marion's emissions have decreased by 54%. This suggests meaningful progress in emissions reduction.
Nationwide facilities with similar CO₂e or sector
Peer sets outside IL for a top-third GHGRP emitter: CO₂e totals first, then Power Plants neighbors.
Similar reported CO₂e
Nearest latest-year facility totals outside IL (1.0M MT here).
Similar Power Plants CO₂e
Nearest same-sector facility totals outside IL.