Energy-from-Waste Facility

Covanta Honolulu Resource Recovery Venture
Kapolei, Hawaii

Covanta Honolulu, known locally as the HPOWER facility, began commercial operation in May 1990 and is owned by the City and County of Honolulu. HPOWER stands for Honolulu Program of Waste Energy Recovery. Covanta acquired the operating contract in 1993. Located 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 for Hawaiian Electric Company—enough to meet nearly 8 percent of Oahu's energy needs. HPOWER also recovers thousands of tons of ferrous (steel) and non-ferrous (aluminum alloy) metal for recycling each year.

In 2012, the facility completed a 900 ton-per-day expansion of the existing facility. The expansion included the addition of a third combustor unit, turbine/generator and associated air pollution control equipment.

In 2007, the facility was designated as a U.S. Occupational Safety and Health Administration Voluntary Protection Program (VPP) Star Facility. In 2008, HPOWER was awarded First Place-Excellence in Safety and Health by the American Society of Safety Engineers and Hawaii Occupational Safety and Health.

Technical Data

Address:

91-174 Hanua Street
Kapolei, HI 96707
(808) 682-2099

Site:

28 acres in Campbell Industrial Park, Kapolei, Hawaii

Commercial Operation:

May 1990
(Covanta acquired the operating contract in 1993 from Combustion Engineering/ABB)

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

Boiler Design:

900 psig/830°F superheater outlet conditions

Air Pollution Control Equipment:

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

Rated Refuse Capacity:

3,000 tons per day

Energy Generation @ Rated Capacity:

Up to 90 megawatts 

Sold to:

Hawaiian Electric Company