Naval Submarine Base New London
Groton, CT · NEW LONDON COUNTY · NAICS 928110
Data updated May 2026
According to the EPA Greenhouse Gas Reporting Program, Naval Submarine Base New London ranks #5,337 of 8,713 U.S. reporting facilities by latest reported CO₂e and #33 of 53 facilities in CT.
- National rank #5,337 of 8,713 GHGRP facilities
- #33 of 53 in CT
- #902 of 1,599 in Other
- 0.1% of US GOVERNMENT parent CO₂e
- 2023 mix: 0.1% non-CO₂ (N₂O-led)
- +4.0% since 2011
Naval Submarine Base New London vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
33,690 5337th of 8713 higher than 3,376 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 0.1% of US GOVERNMENT reported parent CO₂e (34K MT of 41.4M MT ; #59 of 83 GHGRP facilities under that parent ). Inside the EPA Other sector it ranks #902 of 1,599 facilities by latest CO₂e. Shares use GHGRP facility rollups only, not Scope 2/3 or non-reporting sites.
2023 gas mix desk
Of 34K 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%
- 34K MT
- CH₄
- 0%
- 16 MT
- N₂O
- 0.1%
- 20 MT
Annual emissions history
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 33,690 |
| 2022 | 16,266 |
| 2021 | 13,734 |
| 2020 | 30,882 |
| 2019 | 32,883 |
| 2018 | 30,874 |
| 2017 | 34,550 |
| 2016 | 32,563 |
| 2015 | 30,245 |
| 2014 | 37,100 |
| 2013 | 33,005 |
| 2012 | 42,741 |
| 2011 | 32,398 |
Facility insight: Naval Submarine Base New London
Naval Submarine Base New London (EPA GHGRP Facility ID 1002311) reported 34K metric tons of CO2-equivalent in 2023, operating in Groton, CT within NEW LONDON COUNTY. Among GHGRP reporters it ranks #5,337 of 8,713 nationally by latest CO₂e and #33 of 53 in CT. The site is classified under Other with NAICS code 928110.
Over 13 years (2011–2023), emissions stayed within a narrow band around 34K MT CO₂e (peak 43K MT). This facility has filed every year from 2011 to 2023, a complete 13-year record.
Peak year was 2012 at 43K MT CO2e; latest 2023 sits 21.2% below that peak (34K MT). The largest year-to-year move was 2022→2023 (+107.1%, 17K MT).
Frequently Asked Questions
Where does Naval Submarine Base New London rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Naval Submarine Base New London ranks #5,337 of 8,713 reporting facilities by latest reported CO₂e, and #33 of 53 facilities in CT (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than Naval Submarine Base New London? ▼
Naval Submarine Base New London's 34K MT CO₂e is higher than 3,376 of the 8,713 GHGRP facilities with reported emissions (39%), an exact count from the full corpus, not an estimate.
How much CO2 does Naval Submarine Base New London emit? ▼
Naval Submarine Base New London reported 34K MT CO2e in 2023.
What share of US GOVERNMENT does Naval Submarine Base New London represent? ▼
Naval Submarine Base New London accounts for 0.1% of US GOVERNMENT's reported GHGRP CO₂e (34K MT of 41.4M MT), ranking #59 of 83 facilities under that parent.
What is Naval Submarine Base New London's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 0.1% of reported CO₂e at Naval Submarine Base New London, 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 Naval Submarine Base New London rank inside Other? ▼
Among EPA GHGRP facilities tagged Other, Naval Submarine Base New London ranks #902 of 1,599 by latest reported CO₂e.
Is Naval Submarine Base New London reducing emissions? ▼
Over 13 reporting years (2011–2023), Naval Submarine Base New London's emissions have increased by 4%. Emissions have remained relatively stable.
Nationwide facilities with similar CO₂e or sector
Two GHGRP-derived peer sets for Naval Submarine Base New London, both outside CT so the neighborhoods are not state-geo containment.
Similar reported CO₂e
Nearest latest-year facility totals outside CT (34K MT here).
Similar Other CO₂e
Nearest same-sector facility totals outside CT.