EPA GHGRP · state profile · HI
Hawaii - lower-footprint state profile
According to the EPA's Greenhouse Gas Reporting Program (GHGRP), a smaller state total: 7.5M MT CO₂e across 29 reporting facilities in HI.
- among states
- #44
- Total CO₂e - Mid-size emitter
- 7.5M MT
- Facilities
- 29
- Companies
- 12
- Avg / facility - High intensity
- 259K MT
Data updated May 2026
Hawaii reports 7.5M MT CO₂e from 29 EPA GHGRP facilities and 12 parent companies (#44 of 54 U.S. states by aggregated facility CO₂e), led by HAWAIIAN ELECTRIC INDUSTRIES at 4.5M MT (~60% of the state total).
- #44 of 54 states
- HAWAIIAN ELECTRIC INDUSTRIES 59.8% of state
- 0.3% of U.S. GHGRP total
- Avg 259K MT per facility · May 2026
Top-reporter concentration desk
HAWAIIAN ELECTRIC INDUSTRIES dominates the in-state book at 59.8% of reported Hawaii CO₂e (4.5M MT of 7.5M MT). Top-three reporters hold 80.2% (HAWAIIAN ELECTRIC INDUSTRIES; KALAELOA PARTNERS; PAR PACIFIC HOLDINGS). Shares use EPA GHGRP facilities sited in HI only, not each parent's company-wide total.
- Hawaii is 0.3% of the 2.57B MT U.S. GHGRP facility rollup across 54 jurisdictions.
- Leading EPA sector by CO₂e: Power Plants at 82.4% (6.2M MT across 15 facilities) - orthogonal to the facility-count sector mix below.
- Trails Massachusetts by 2.9M MT on the same state ranking.
- Leads South Dakota by 1.2M MT on the same state ranking.
Hawaii 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)
8 44th of 54 higher than 10 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 29 Hawaii 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 Hawaii.
Facility mix · Scope 1 size bands
How 29 Hawaii 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 Hawaii.
Largest corporate emitters in Hawaii
Hawaii - top corporate emitters (MT CO₂e)
State insight: Hawaii
Hawaii (HI) reports 7.5M MT CO₂e from 29 EPA GHGRP facilities operated by 12 companies (#44 of 54 states by aggregated facility CO₂e). Per-facility average is about 259K MT. Power Plants leads the in-state CO₂e mix at 82.4%.
Top in-state reporters: HAWAIIAN ELECTRIC INDUSTRIES, KALAELOA PARTNERS, PAR PACIFIC HOLDINGS (together 80.2% of the HI total). These are Scope 1 facility reports only - not a full state inventory or company-wide footprint. See methodology.
Top companies in Hawaii
Top facilities in Hawaii
Nationwide peers for a lower-footprint state
Comparison paths for a smaller GHGRP state total: nearest CO₂e rollups and facility-count neighbors outside HI.
Similar reported CO₂e
Nearest states by aggregated facility CO₂e (7.5M MT here).
Similar facility inventory
Nearest states by GHGRP reporting facility count (29 here).
State totals aggregate EPA Greenhouse Gas Reporting Program (GHGRP) facility reports sited in Hawaii (HI). 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.