Port Washington Generating Station
PORT WASHINGTON, WI · Ozaukee · NAICS 221112
Data updated May 2026
Port Washington Generating Station sits in the upper third of EPA GHGRP reporters by latest CO₂e (#156 of 8,713 nationally, #4 of 161 in WI).
- National rank #156 of 8,713 GHGRP facilities
- #4 of 161 in WI
- #122 of 1,732 in Power Plants
- 30.4% of WEC Energy Group parent CO₂e
- 2023 mix: 0.1% non-CO₂ (N₂O-led)
- +238.2% since 2011
Port Washington Generating Station vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
3,154,314 156th of 8713 higher than 8,557 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 30.4% of WEC Energy Group reported parent CO₂e (3.2M MT of 10.4M MT ; #2 of 15 GHGRP facilities under that parent ). Inside the EPA Power Plants sector it ranks #122 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 3.2M 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%
- 3.2M MT
- CH₄
- 0%
- 1K MT
- N₂O
- 0.1%
- 2K MT
Emissions growth across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 3,154,314 |
| 2022 | 2,855,765 |
| 2021 | 2,644,826 |
| 2020 | 3,110,355 |
| 2019 | 2,909,076 |
| 2018 | 2,205,813 |
| 2017 | 2,025,013 |
| 2016 | 2,185,649 |
| 2015 | 1,776,059 |
| 2014 | 1,143,641 |
| 2013 | 1,309,141 |
| 2012 | 1,917,798 |
| 2011 | 932,670 |
Facility insight: Port Washington Generating Station
Port Washington Generating Station (GHGRP ID 1006630) is a high-volume reporter at 3.2M MT CO₂e in 2023 from PORT WASHINGTON, WI (#156 of 8,713 nationally) under Power Plants (NAICS 221112).
From 2011 to 2023, reported CO₂e rose 238.2% (peak 3.2M MT). This facility has filed every year from 2011 to 2023, a complete 13-year record.
Frequently Asked Questions
Where does Port Washington Generating Station rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Port Washington Generating Station ranks #156 of 8,713 reporting facilities by latest reported CO₂e, and #4 of 161 facilities in WI (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than Port Washington Generating Station? ▼
Port Washington Generating Station's 3.2M MT CO₂e is higher than 8,557 of the 8,713 GHGRP facilities with reported emissions (98%), an exact count from the full corpus, not an estimate.
How much CO2 does Port Washington Generating Station emit? ▼
Port Washington Generating Station reported 3.2M MT CO2e in 2023.
What share of WEC Energy Group does Port Washington Generating Station represent? ▼
Port Washington Generating Station accounts for 30.4% of WEC Energy Group's reported GHGRP CO₂e (3.2M MT of 10.4M MT), ranking #2 of 15 facilities under that parent.
What is Port Washington Generating Station's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 0.1% of reported CO₂e at Port Washington Generating Station, 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 Port Washington Generating Station rank inside Power Plants? ▼
Among EPA GHGRP facilities tagged Power Plants, Port Washington Generating Station ranks #122 of 1,732 by latest reported CO₂e.
Is Port Washington Generating Station reducing emissions? ▼
Over 13 reporting years (2011–2023), Port Washington Generating Station's emissions have increased by 238.2%. This may reflect expanded operations or increased production.
Nationwide facilities with similar CO₂e or sector
Peer sets outside WI for a top-third GHGRP emitter: CO₂e totals first, then Power Plants neighbors.
Similar reported CO₂e
Nearest latest-year facility totals outside WI (3.2M MT here).
Similar Power Plants CO₂e
Nearest same-sector facility totals outside WI.