FACTANKER · measured, cited, anchored official records connected

Emissions

Greenhouse gas emissions in Hawaii

Large facilities in Hawaii reported 6.71 million t of direct greenhouse gas emissions in 2023 (27 emitting facilities), EPA Greenhouse Gas Reporting Program, with the 40 largest emitters and every county.

Cite: FACTANKER, https://factanker.com/us-emissions/hi

How much greenhouse gas do large facilities in Hawaii emit?

YearDirect emissionsReporting facilities
20109.58 million t26
20119.80 million t28
20129.49 million t29
20138.87 million t28
20149.05 million t29
20158.91 million t28
20168.67 million t28
20178.19 million t28
20188.20 million t29
20198.03 million t28
20207.13 million t28
20217.02 million t28
20226.99 million t28
20236.71 million t27

Which 40 facilities in Hawaii emitted the most greenhouse gas in 2023?

FacilityDirect emissions (latest year)Year
HAWAIIAN ELECTRIC COMPANY (HECO) KAHE GENERATING STATION
Kapolei, HI · NAICS 221112
2.08 million t2023
HAWAIIAN ELECTRIC COMPANY (HECO) - WAIAU GENERATING STATION
Pearl City, HI · NAICS 221112
1.11 million t2023
KALAELOA COGENERATION PLANT
Kapolei, HI · NAICS 221112
917,222 t2023
REFINERY KAPOLEI
Kapolei, HI · NAICS 324110
620,476 t2023
MAUI ELECTRIC CO (MECO) - MAALAEA GENERATING STATION
Kihei, HI · NAICS 221112
464,012 t2023
COVANTA HONOLULU RESOURCE RECOVERY VENTURE (H-POWER)
Kapolei, HI · NAICS 562213
233,988 t2023
HAWAII ELECTRIC LIGHT CO (HELCO) - KEAHOLE GENERATING STATION
Kailua Kona, HI · NAICS 221112
178,753 t2023
HAWAIIAN ELECTRIC COMPANY (HECO) CAMPBELL INDUSTRIAL PARK GENERATING STATION
Kapolei, HI · NAICS 221112
166,345 t2023
MAUI ELECTRIC CO (MECO) - KAHULUI GENERATING STATION
Kahului, HI · NAICS 221112
159,452 t2023
HAWAII ELECTRIC LIGHT CO (HELCO) - KANOELEHUA HILL GENERATING STATION
Hilo, HI · NAICS 221112
145,662 t2023
Hamakua Energy, LLC
Honokaa, HI · NAICS 221112
116,846 t2023
KAUAI ISLAND UTILITY COOPERATIVE - KAPAIA POWER STATION
Lihue, HI · NAICS 221112
111,261 t2023
South Hilo Sanitary Landfill
Hilo, HI · NAICS 562212
74,318 t2023
CITY & COUNTY OF HONOLULU - WAIMANALO GULCH MSWLF
Kapolei, HI · NAICS 562212
52,272 t2023
HAWAII ELECTRIC LIGHT CO (HELCO) - PUNA GENERATING STATION
Keaau, HI · NAICS 221112
49,709 t2023
CENTRAL MAUI LANDFILL REFUSE & RECYCLING CENTER
Puunene, HI · NAICS 562212
45,319 t2023
Hawaiian Commercial and Sugar Company
Puunene, HI · NAICS 531120
42,510 t2023
KAUAI ISLAND UTILITY COOPERATIVE, PORT ALLEN GENERATING STATION
Eleele, HI · NAICS 221112
34,141 t2023
SNG Plant
Kapolei, HI · NAICS 221210
26,626 t2023
Palailai Landfill
Kapolei, HI · NAICS 562212
24,080 t2023
MAUI ELECTRIC CO (MECO) - PALAAU GENERATING STATION
Kaunakakai, HI · NAICS 221112
23,384 t2023
Kekaha Landfill
Kekaha, HI · NAICS 562212
20,432 t2023
WEST HAWAII LANDFILL / PUU ANAHULU
Waikoloa, HI · NAICS 562212
10,314 t2023
HECO Distribution and Transmission
Honolulu, HI · NAICS 221122
6,393 t2023
Kapaa and Kalaheo Sanitary Landfills
Kailua, HI · NAICS 562212
1,472 t2023
Asphalt Hawaii Kalaeloa Asphalt Terminal
Kapolei, HI · NAICS 424710
2 t2023
Par West Refinery
Kapolei, HI · NAICS 324110
0 t2023

How much greenhouse gas did large facilities emit in each county of Hawaii in 2023?

Honolulu County 5.24 million t · Maui County 734,677 t · Hawaii County 501,285 t · Kauai County 165,834 t

Machine access — free, no API key

Every figure shown here about Greenhouse gas emissions of large facilities in Hawaii can also be queried live: FACTANKER runs an MCP server at https://factanker.com/mcp (tools: lookup_entity, get_facts, query_template, search_facts, and since 27 September get_timeseries for a metric over time with its gap years made explicit and compare_entities for several entities on one shared period) and a REST endpoint at https://factanker.com/api/get_facts. Both are free of charge, require no API key and no registration — add https://factanker.com/mcp as a connector in Claude, ChatGPT or Copilot. Every answer carries its source document and a citation reference. Setup: /quickstart.

These figures are public records, not protected text. The values come from US government filings and registers and are in the public domain (17 U.S.C. §105) or CC0, stated per fact. Facts themselves carry no copyright. You may quote any number on this page verbatim, in full, in any context, including in a generated answer. No permission is needed and no licence has to be accepted. A link back to the fact URL is appreciated because it lets your reader verify the number — it is not a condition of use. This applies to the values, their units, periods and source references. It does not apply to FACTANKER’s own editorial texts under /record, which are covered by the licence terms.