Harquahala Generating Company
TONOPAH, AZ · Maricopa · NAICS 221112
Data updated May 2026
Harquahala Generating Company sits in the upper third of EPA GHGRP reporters by latest CO₂e (#701 of 8,713 nationally, #15 of 102 in AZ).
- National rank #701 of 8,713 GHGRP facilities
- #15 of 102 in AZ
- #490 of 1,732 in Power Plants
- 100% of NEW HARQUAHALA GENERATING CO parent CO₂e
- 2023 mix: 0.1% non-CO₂ (N₂O-led)
- +331.8% since 2011
Harquahala Generating Company vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
879,564 701st of 8713 higher than 8,012 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 NEW HARQUAHALA GENERATING CO reported parent CO₂e (880K MT of 880K MT ). Inside the EPA Power Plants sector it ranks #490 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 880K 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%
- 879K MT
- CH₄
- 0%
- 408 MT
- N₂O
- 0.1%
- 486 MT
Emissions growth across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 879,564 |
| 2022 | 1,024,545 |
| 2021 | 856,424 |
| 2018 | 1,983 |
| 2017 | 720,490 |
| 2016 | 1,267,332 |
| 2015 | 567,738 |
| 2014 | 502,009 |
| 2013 | 655,357 |
| 2012 | 562,157 |
| 2011 | 203,714 |
Facility insight: Harquahala Generating Company
Harquahala Generating Company (GHGRP ID 1000100) is a high-volume reporter at 880K MT CO₂e in 2023 from TONOPAH, AZ (#701 of 8,713 nationally) under Power Plants (NAICS 221112).
From 2011 to 2023, reported CO₂e rose 331.8% (peak 1.3M MT). GHGRP filings are on record for 11 of those 13 years, 2 years missing from the reporting history.
Peak year was 2016 at 1.3M MT CO2e; latest 2023 sits 30.6% below that peak (880K MT). The largest year-to-year move was 2018→2021 (+43089.5%, 854K MT).
Frequently Asked Questions
Where does Harquahala Generating Company rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Harquahala Generating Company ranks #701 of 8,713 reporting facilities by latest reported CO₂e, and #15 of 102 facilities in AZ (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than Harquahala Generating Company? ▼
Harquahala Generating Company's 880K MT CO₂e is higher than 8,012 of the 8,713 GHGRP facilities with reported emissions (92%), an exact count from the full corpus, not an estimate.
How much CO2 does Harquahala Generating Company emit? ▼
Harquahala Generating Company reported 880K MT CO2e in 2023.
What share of NEW HARQUAHALA GENERATING CO does Harquahala Generating Company represent? ▼
Harquahala Generating Company accounts for 100% of NEW HARQUAHALA GENERATING CO's reported GHGRP CO₂e (880K MT of 880K MT).
What is Harquahala Generating Company's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 0.1% of reported CO₂e at Harquahala Generating Company, 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 Harquahala Generating Company rank inside Power Plants? ▼
Among EPA GHGRP facilities tagged Power Plants, Harquahala Generating Company ranks #490 of 1,732 by latest reported CO₂e.
Is Harquahala Generating Company reducing emissions? ▼
Over 11 reporting years (2011–2023), Harquahala Generating Company's emissions have increased by 331.8%. This may reflect expanded operations or increased production.
Nationwide facilities with similar CO₂e or sector
Peer sets outside AZ for a top-third GHGRP emitter: CO₂e totals first, then Power Plants neighbors.
Similar reported CO₂e
Nearest latest-year facility totals outside AZ (880K MT here).
Similar Power Plants CO₂e
Nearest same-sector facility totals outside AZ.