Perryman
PERRYMAN, MD · Harford · NAICS 221112
Data updated May 2026
Perryman sits in the upper third of EPA GHGRP reporters by latest CO₂e (#1,989 of 8,713 nationally, #18 of 77 in MD).
- National rank #1,989 of 8,713 GHGRP facilities
- #18 of 77 in MD
- #883 of 1,732 in Power Plants
- 1.7% of CONSTELLATION ENERGY parent CO₂e
- 2023 mix: 0.1% non-CO₂ (N₂O-led)
- +183.2% since 2011
Perryman vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
152,743 1989th of 8713 higher than 6,724 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 1.7% of CONSTELLATION ENERGY reported parent CO₂e (153K MT of 8.9M MT ; #6 of 10 GHGRP facilities under that parent ). Inside the EPA Power Plants sector it ranks #883 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 153K 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%
- 153K MT
- CH₄
- 0%
- 75 MT
- N₂O
- 0.1%
- 98 MT
Emissions growth across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 152,743 |
| 2022 | 200,550 |
| 2021 | 144,432 |
| 2020 | 127,788 |
| 2019 | 123,492 |
| 2018 | 179,891 |
| 2017 | 140,065 |
| 2016 | 340,704 |
| 2015 | 247,921 |
| 2014 | 91,278 |
| 2013 | 66,628 |
| 2012 | 68,982 |
| 2011 | 53,936 |
Facility insight: Perryman
Perryman (GHGRP ID 1000644) is a high-volume reporter at 153K MT CO₂e in 2023 from PERRYMAN, MD (#1,989 of 8,713 nationally) under Power Plants (NAICS 221112).
From 2011 to 2023, reported CO₂e rose 183.2% (peak 341K MT). This facility has filed every year from 2011 to 2023, a complete 13-year record.
Peak year was 2016 at 341K MT CO2e; latest 2023 sits 55.2% below that peak (153K MT). The largest year-to-year move was 2016→2017 (-58.9%, 201K MT).
Frequently Asked Questions
Where does Perryman rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Perryman ranks #1,989 of 8,713 reporting facilities by latest reported CO₂e, and #18 of 77 facilities in MD (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than Perryman? ▼
Perryman's 153K MT CO₂e is higher than 6,724 of the 8,713 GHGRP facilities with reported emissions (77%), an exact count from the full corpus, not an estimate.
How much CO2 does Perryman emit? ▼
Perryman reported 153K MT CO2e in 2023.
What share of CONSTELLATION ENERGY does Perryman represent? ▼
Perryman accounts for 1.7% of CONSTELLATION ENERGY's reported GHGRP CO₂e (153K MT of 8.9M MT), ranking #6 of 10 facilities under that parent.
What is Perryman's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 0.1% of reported CO₂e at Perryman, 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 Perryman rank inside Power Plants? ▼
Among EPA GHGRP facilities tagged Power Plants, Perryman ranks #883 of 1,732 by latest reported CO₂e.
Is Perryman reducing emissions? ▼
Over 13 reporting years (2011–2023), Perryman's emissions have increased by 183.2%. This may reflect expanded operations or increased production.
Nationwide facilities with similar CO₂e or sector
Peer sets outside MD for a top-third GHGRP emitter: CO₂e totals first, then Power Plants neighbors.
Similar reported CO₂e
Nearest latest-year facility totals outside MD (153K MT here).
Similar Power Plants CO₂e
Nearest same-sector facility totals outside MD.