EPA GHGRP · state profile · AZ
Arizona - top-third state emissions
According to the EPA's Greenhouse Gas Reporting Program (GHGRP), an upper-third state rollup: 53.0M MT CO₂e from 102 facilities (#15 of 54 states).
- among states
- #15
- Total CO₂e - Large emitter
- 53.0M MT
- Facilities
- 102
- Companies
- 43
- Avg / facility - High intensity
- 519K MT
Data updated May 2026
Arizona reports 53.0M MT CO₂e from 102 EPA GHGRP facilities and 43 parent companies (#15 of 54 U.S. states by aggregated facility CO₂e), led by SALT RIVER PROJECT AGRICULTURAL IMPROVEMENT & POWER DISTRICT at 15.1M MT (~28% of the state total).
- #15 of 54 states
- SALT RIVER PROJECT AGRICULTURAL IMPROVEMENT & POWER DISTRICT 28.5% of state
- 2.1% of U.S. GHGRP total
- Avg 519K MT per facility · May 2026
In-state concentration desk
SALT RIVER PROJECT AGRICULTURAL IMPROVEMENT & POWER DISTRICT accounts for 28.5% of reported Arizona CO₂e (15.1M MT of 53.0M MT). The top three in-state reporters hold 49.1% (SALT RIVER PROJECT AGRICULTURAL IMPROVEMENT & POWER DISTRICT; PINNACLE WEST CAPITAL; UNS ENERGY). Shares use EPA GHGRP facilities sited in AZ only, not each parent's company-wide total.
- Arizona is 2.1% of the 2.57B MT U.S. GHGRP facility rollup across 54 jurisdictions.
- Leading EPA sector by CO₂e: Power Plants at 87.5% (46.3M MT across 27 facilities) - orthogonal to the facility-count sector mix below.
- Trails Georgia by 5.3M MT on the same state ranking.
- Leads Wyoming by 860K MT on the same state ranking.
Arizona vs all states by reported GHGRP CO₂e
Where this state's aggregated facility Scope 1 sits among every state and territory in the EPA GHGRP file (readout in million MT)
53 15th of 54 higher than 39 of 54 states
States and territories, banded by total reported facility CO₂e (MT)
Each bar is a band; taller bars hold more states. 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 · May 2026
Facility mix · EPA sector count
How 102 Arizona facilities split by EPA sector
Exclusive in-state facility counts by EPA industry_sector, orthogonal to the leading-parent CO₂e share lens above. Source: EPA GHGRP facility reports in Arizona.
Facility mix · Scope 1 size bands
How 102 Arizona facilities split by latest reported Scope 1
Exclusive in-state facility counts by latest reported Scope 1 size band, orthogonal to the EPA sector mix above. Source: EPA GHGRP facility reports in Arizona.
Largest corporate emitters in Arizona
Arizona - top corporate emitters (MT CO₂e)
Company footprint
Which companies combine scale and emissions?
Each point is a leading Arizona reporter. The crosshairs mark the median among the companies shown, so the chart distinguishes a larger facility footprint from a higher emissions total.
This is a comparison of the leading 12 reporters displayed above, not a measure of production, population, or total company-wide emissions outside Arizona.
Read the chart values
- SALT RIVER PROJECT AGRICULTURAL IMPROVEMENT & POWER DISTRICT 7 sites · 15.1M MT
- PINNACLE WEST CAPITAL 7 sites · 6.1M MT
- UNS ENERGY 5 sites · 4.9M MT
- ONWARD ENERGY 1 sites · 3.0M MT
- ARIZONA ELECTRIC POWER COOPERATIVE 1 sites · 1.5M MT
- ARCLIGHT CAPITAL HOLDINGS 2 sites · 1.4M MT
- ARLINGTON VALLEY 1 sites · 1.4M MT
- CPN MANAGEMENT 43 sites · 1.1M MT
- NEW HARQUAHALA GENERATING CO 1 sites · 880K MT
- TAIHEIYO CEMENT USA 4 sites · 789K MT
- LHOIST NORTH AMERICA 10 sites · 787K MT
- PHOENIX CEMENT 1 sites · 768K MT
State insight: Arizona
Arizona (AZ) reports 53.0M MT CO₂e from 102 EPA GHGRP facilities operated by 43 companies (#15 of 54 states by aggregated facility CO₂e). Per-facility average is about 519K MT. Power Plants leads the in-state CO₂e mix at 87.5%.
Upper-third emitters here include SALT RIVER PROJECT AGRICULTURAL IMPROVEMENT & POWER DISTRICT, PINNACLE WEST CAPITAL, UNS ENERGY (49.1% of the AZ total). These are Scope 1 facility reports only - not a full state inventory or company-wide footprint. See methodology.
Largest corporate emitters in Arizona
Highest-emitting GHGRP facilities in Arizona
Nationwide peers for a top-third state rollup
Two EPA GHGRP peer sets for an upper-third state (53.0M MT): nearest CO₂e totals and facility-book matches beyond the in-state tables above.
Similar reported CO₂e
Nearest states by aggregated facility CO₂e (53.0M MT here).
Similar facility inventory
Nearest states by GHGRP reporting facility count (102 here).
State totals aggregate EPA Greenhouse Gas Reporting Program (GHGRP) facility reports sited in Arizona (AZ). Figures reflect facility self-reporting, not a full state inventory. See our methodology. Retrieved and formatted by PlainCarbon
Related reading: Understanding corporate carbon reporting · All states · Methodology
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the EPA Greenhouse Gas Reporting Program (GHGRP). Consult a qualified professional before making decisions based on this data.