FACTANKER · measured, cited, anchored official records connected

Emissions · county

Greenhouse gas emissions in Honolulu County

Large facilities in Honolulu County, Hawaii reported 5.24 million t of direct greenhouse gas emissions in 2023 (13 facilities), EPA Greenhouse Gas Reporting Program.

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

How much greenhouse gas do large facilities in Honolulu County, Hawaii emit?

YearDirect emissionsReporting facilities
20107.58 million t13
20117.83 million t15
20127.57 million t15
20137.03 million t14
20147.26 million t15
20157.14 million t14
20167.05 million t14
20176.61 million t14
20186.54 million t15
20196.25 million t14
20205.59 million t14
20215.52 million t14
20225.43 million t14
20235.24 million t13

Which large facilities in Honolulu County, Hawaii report greenhouse gas emissions?

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
AES HAWAII INC
Kapolei, HI · NAICS 221112
642,019 t2022
REFINERY KAPOLEI
Kapolei, HI · NAICS 324110
620,476 t2023
COVANTA HONOLULU RESOURCE RECOVERY VENTURE (H-POWER)
Kapolei, HI · NAICS 562213
233,988 t2023
IES DOWNSTREAM, LLC - KAPOLEI REFINERY
Kapolei, HI · NAICS 324110
167,661 t2018
HAWAIIAN ELECTRIC COMPANY (HECO) CAMPBELL INDUSTRIAL PARK GENERATING STATION
Kapolei, HI · NAICS 221112
166,345 t2023
CITY & COUNTY OF HONOLULU - WAIMANALO GULCH MSWLF
Kapolei, HI · NAICS 562212
52,272 t2023
SNG Plant
Kapolei, HI · NAICS 221210
26,626 t2023
Palailai Landfill
Kapolei, HI · NAICS 562212
24,080 t2023
HECO Distribution and Transmission
Honolulu, HI · NAICS 221122
6,393 t2023
HAWAIIAN ELECTRIC COMPANY (HECO)-HONOLULU GENERATING STATION
Honolulu, HI · NAICS 221112
2,073 t2014
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

All figures for Honolulu County · Hawaii · United States

Machine access — free, no API key

Every figure shown here about Greenhouse gas emissions in Honolulu County, 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.