Alcoa USA Corp.
Massena, NY · ST. LAWRENCE COUNTY · NAICS 331313
Data updated May 2026
Alcoa USA Corp. sits in the upper third of EPA GHGRP reporters by latest CO₂e (#1,371 of 8,713 nationally, #25 of 246 in NY).
- National rank #1,371 of 8,713 GHGRP facilities
- #25 of 246 in NY
- #51 of 363 in Metals
- 5.3% of ALCOA parent CO₂e
- 2023 mix: 0% non-CO₂ (N₂O-led)
- +454.8% since 2016
Alcoa USA Corp. vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
285,852 1371st of 8713 higher than 7,342 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 5.3% of ALCOA reported parent CO₂e (286K MT of 5.4M MT ; #2 of 4 GHGRP facilities under that parent ). Inside the EPA Metals sector it ranks #51 of 363 facilities by latest CO₂e. Shares use GHGRP facility rollups only, not Scope 2/3 or non-reporting sites.
2023 gas mix desk
Of 286K MT CO₂e reported for 2023, non-CO₂ gases are 0% , led by N₂O at 0% . Component shares use this facility's GHGRP CO₂ / CH₄ / N₂O rows for that year (already CO₂e-weighted).
- CO₂
- 90.6%
- 259K MT
- CH₄
- 0%
- 22 MT
- N₂O
- 0%
- 26 MT
Emissions growth across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 285,852 |
| 2022 | 291,783 |
| 2021 | 291,897 |
| 2020 | 294,649 |
| 2019 | 304,067 |
| 2018 | 294,014 |
| 2017 | 292,536 |
| 2016 | 51,523 |
Facility insight: Alcoa USA Corp.
Alcoa USA Corp. (GHGRP ID 1012517) is a high-volume reporter at 286K MT CO₂e in 2023 from Massena, NY (#1,371 of 8,713 nationally) under Metals (NAICS 331313).
From 2016 to 2023, reported CO₂e rose 454.8% (peak 304K MT). This facility has filed every year from 2016 to 2023, a complete 8-year record.
Peak year was 2019 at 304K MT CO2e; latest 2023 sits 6% below that peak (286K MT). The largest year-to-year move was 2016→2017 (+467.8%, 241K MT).
Frequently Asked Questions
Where does Alcoa USA Corp. rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Alcoa USA Corp. ranks #1,371 of 8,713 reporting facilities by latest reported CO₂e, and #25 of 246 facilities in NY (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than Alcoa USA Corp.? ▼
Alcoa USA Corp.'s 286K MT CO₂e is higher than 7,342 of the 8,713 GHGRP facilities with reported emissions (84%), an exact count from the full corpus, not an estimate.
How much CO2 does Alcoa USA Corp. emit? ▼
Alcoa USA Corp. reported 286K MT CO2e in 2023.
What share of ALCOA does Alcoa USA Corp. represent? ▼
Alcoa USA Corp. accounts for 5.3% of ALCOA's reported GHGRP CO₂e (286K MT of 5.4M MT), ranking #2 of 4 facilities under that parent.
What is Alcoa USA Corp.'s 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 0% of reported CO₂e at Alcoa USA Corp., with N₂O the larger non-CO₂ share at 0% (CO₂ 90.6%). Shares use the facility's GHGRP gas components for that year.
Where does Alcoa USA Corp. rank inside Metals? ▼
Among EPA GHGRP facilities tagged Metals, Alcoa USA Corp. ranks #51 of 363 by latest reported CO₂e.
Is Alcoa USA Corp. reducing emissions? ▼
Over 8 reporting years (2016–2023), Alcoa USA Corp.'s emissions have increased by 454.8%. This may reflect expanded operations or increased production.
Nationwide facilities with similar CO₂e or sector
Peer sets outside NY for a top-third GHGRP emitter: CO₂e totals first, then Metals neighbors.
Similar reported CO₂e
Nearest latest-year facility totals outside NY (286K MT here).
Similar Metals CO₂e
Nearest same-sector facility totals outside NY.