Diodes US Manufacturing Incorporated
South Portland, ME · CUMBERLAND COUNTY · NAICS 334413
Data updated May 2026
Diodes US Manufacturing Incorporated ranks among smaller GHGRP totals (#6,714 of 8,713 nationally; #25 of 35 in ME), a lower-footprint comparator in Other.
- National rank #6,714 of 8,713 GHGRP facilities
- #25 of 35 in ME
- #1,249 of 1,599 in Other
- 100% of DIODES parent CO₂e
- 2023 mix: 0.9% non-CO₂ (N₂O-led)
- -59.2% since 2011
Diodes US Manufacturing Incorporated vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
20,237 6714th of 8713 higher than 1,999 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 DIODES reported parent CO₂e (20K MT of 20K MT ). Inside the EPA Other sector it ranks #1,249 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 20K MT CO₂e reported for 2023, non-CO₂ gases are 0.9% , led by N₂O at 0.9% . Component shares use this facility's GHGRP CO₂ / CH₄ / N₂O rows for that year (already CO₂e-weighted).
- CO₂
- 30.2%
- 6K MT
- CH₄
- 0%
- 3 MT
- N₂O
- 0.9%
- 182 MT
Emissions decline across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 20,237 |
| 2022 | 25,447 |
| 2021 | 27,819 |
| 2020 | 23,191 |
| 2019 | 23,710 |
| 2018 | 28,105 |
| 2017 | 26,318 |
| 2016 | 29,508 |
| 2015 | 33,404 |
| 2014 | 33,951 |
| 2013 | 34,188 |
| 2012 | 40,930 |
| 2011 | 49,654 |
Facility insight: Diodes US Manufacturing Incorporated
Diodes US Manufacturing Incorporated (ID 1009581) reported 20K MT CO₂e for 2023 in CUMBERLAND COUNTY, ME (#6,714 of 8,713 by latest CO₂e).
Across 2011–2023, annual CO₂e fell 59.2%; peak load was 50K MT in 2011. This facility has filed every year from 2011 to 2023, a complete 13-year record.
Peak year was 2011 at 50K MT CO2e; latest 2023 sits 59.2% below that peak (20K MT). The largest year-to-year move was 2011→2012 (-17.6%, 9K MT).
Frequently Asked Questions
Where does Diodes US Manufacturing Incorporated rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Diodes US Manufacturing Incorporated ranks #6,714 of 8,713 reporting facilities by latest reported CO₂e, and #25 of 35 facilities in ME (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than Diodes US Manufacturing Incorporated? ▼
Diodes US Manufacturing Incorporated's 20K MT CO₂e is higher than 1,999 of the 8,713 GHGRP facilities with reported emissions (23%), an exact count from the full corpus, not an estimate.
How much CO2 does Diodes US Manufacturing Incorporated emit? ▼
Diodes US Manufacturing Incorporated reported 20K MT CO2e in 2023.
What share of DIODES does Diodes US Manufacturing Incorporated represent? ▼
Diodes US Manufacturing Incorporated accounts for 100% of DIODES's reported GHGRP CO₂e (20K MT of 20K MT).
What is Diodes US Manufacturing Incorporated's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 0.9% of reported CO₂e at Diodes US Manufacturing Incorporated, with N₂O the larger non-CO₂ share at 0.9% (CO₂ 30.2%). Shares use the facility's GHGRP gas components for that year.
Where does Diodes US Manufacturing Incorporated rank inside Other? ▼
Among EPA GHGRP facilities tagged Other, Diodes US Manufacturing Incorporated ranks #1,249 of 1,599 by latest reported CO₂e.
Is Diodes US Manufacturing Incorporated reducing emissions? ▼
Over 13 reporting years (2011–2023), Diodes US Manufacturing Incorporated's emissions have decreased by 59.2%. This suggests meaningful progress in emissions reduction.
Nationwide facilities with similar CO₂e or sector
Lower-footprint peers outside ME: nearest CO₂e totals and same-sector reporters for context.
Similar reported CO₂e
Nearest latest-year facility totals outside ME (20K MT here).
Similar Other CO₂e
Nearest same-sector facility totals outside ME.