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91-174 Hanua Street
Kapolei, HI 96707

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Covanta Honolulu

Reducing Landfill Waste

Located in Oahu, Hawaii, the Honolulu Program of Waste Energy Recovery (H-POWER), is an award-winning Waste-to-Energy Facility. The Facility is owned by the City and County of Honolulu and serves the more than 950,000 residents as well as over six million visitors to the island each year with reliable and sustainable waste management.

In 2012, we completed a 900-ton-per-day expansion to enable the facility to process 85 percent of Oahu’s post-recycled municipal solid waste and supply up to 10 percent of the island’s electricity needs.

In addition to keeping waste out of landfills, we’re committed to ensuring safe operations and minimizing environmental impacts. We have been consistently recognized for exceptional operations, including OSHA’s stringent Voluntary Protection Program Star certification.

Fast Stats: Annual Performance

Every year, our facility processes more than 670,000 tons of waste that would otherwise have ended up in landfills.


Less waste in landfills reduce greenhouse gas emissions by 596,000 metric tons of CO2. That’s like taking 128,000 passenger vehicles off the road for one year.


We use waste to produce 90 megawatts of electricity 24/7 - enough to power 34,000 homes for a year.


We also recover 15,700 tons of metal for recycling annually - enough to build 15,000 cars.

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Superior Environmental Performance

We care about our communities and operate well below emissions limits. Over 99.9 percent of what comes out of our plant’s stack is what you’d typically find in air - water vapor, nitrogen, oxygen, and carbon dioxide. The remaining constituents are well below federal and state standards.


For more information on facility performance click here.

Process in Action

Waste-to-Energy: How Does It Work?

Waste-to-Energy takes non-hazardous waste - otherwise destined for landfill - and combusts it to generate steam for electricity generation. Ash is processed to recover metal for recycling while all gases are collected, filtered and cleaned before being released safely into the atmosphere.

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