Waste power plant in Hawaii, United States of America. Approximate location 20.8675, -156.454.
WasteHawaiiUnited States of AmericaRetired
Hawaiian Comm & Sugar Puunene Mill is a 62 MW waste power plant in Hawaii, United States of America. Based on its capacity (estimated), it can supply roughly 85k homes (estimated). It ranks #3436 of 10,938 United States of America power plants by installed capacity. In context, the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id CT-1831.
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.
capacity: EIA-860M May 2026 retired generator inventory, summed by Plant ID; fuel: Climate TRACE source-record fuel
At 62 MW, Hawaiian Comm & Sugar Puunene Mill is well above the median waste plant in United States of America (7 MW). Its current lifecycle status is “retired” — so it is not yet, or no longer, generating at full output. Waste-to-energy plants burn municipal solid waste to generate electricity and heat, cutting landfill volume while recovering energy from residual waste.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
This waste plant recovers energy by combusting municipal or industrial waste. It sits in a tropical rainforest climate (Köppen Af) — Northern Hemisphere, latitude 20.9°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
This site has effectively no heating season (tropical/equatorial climate), so winter heat loss is not the driver here. The thermal concern shifts to year-round process heat and humidity/heat-driven corrosion of hot equipment.
Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.
For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.
Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.
Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.
The #42 largest waste power plant of 551 in United States of America by capacity.
United States of America has 551 waste power plants in this dataset, together about 10,154 MW of capacity.
Coordinates 20.8675, -156.454 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Hawaiian Comm & Sugar Puunene Mill is a 62 MW source-record waste power plant in Hawaii, United States of America.
Its output is enough to supply roughly 85,485 homes (estimated).
