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Covanta Honolulu

Honolulu (HPower) Facility Photo

Covanta Honolulu

Covanta Honolulu, known locally as the H-POWER (Honolulu Program of Waste Energy Recovery) facility, began commercial operation in May 1990 and is owned by the City and County of Honolulu. Covanta acquired the operating contract in 1993. Located in Kapolei, on the island of Oahu, the facility serves the municipal waste disposal needs of more than 850,000 residents and more than six million visitors to the island each year. The facility processes up to 3,000 tons per day of municipal solid waste, generating up to 90 megawatts of energy– enough to meet nearly 8 percent of Oahu's energy needs. H-POWER also recovers thousands of tons of ferrous (steel) and non-ferrous (aluminum alloy) metal for recycling each year. In 2012, Covanta completed an expansion that increased the facility's processing capacity by an additional 900 tons per day. The project was featured in Power Magazine

Commercial Operation:

May 1990

Waste Processing Capacity:

3,000 tons per day

Air Pollution Control Equipment:

Semi-dry flue gas scrubbers injecting lime, reverse air fabric filter bag houses, and continuous emissions monitoring system

Energy-from-Waste System:

Two 854 ton-per-day RDF waterwall furnace/boilers with CE traveling grates; waste processing–two RDF processing lines each rated at nominal 100 tons per hour and one 900 ton-per-day waterwall furnace with Martin® reverse-reciprocating grates and ash handling system

Energy Generation:

Up to 90 megawatts

Awards and Recognition:

  • First Place-Excellence in Safety and Health by the American Society of Safety Engineers and Hawaii Occupational Safety and Health (2008)
  • 2016 & 2014 SWANA Gold Excellence Award
  • 2013 SWANA Silver Excellence Award

Covanta Honolulu

91-174 Hanua St

Kapolei, HI  96707



Taylor Tangjian


Visit Our Facility!

If you would like an escorted tour of our facility, please reach out. We welcome the opportunity to show you how our resource recovery process works.

Click here for tour checklist (PDF)

All tours must be scheduled in advance. Please call Taylor Tangjian, Administrative Assistant, at 808-682-0227 or email

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