Department of Natural Resources and Parks - DNRP, King County, Washington
Jan. 20, 2004

Conversion of landfill gas to energy saves money, creates electricity

2004 Archived News

King County Executive, Ron Sims with Paul Mitchener, President of Energy Developments Incorporated
Ron Sims with Paul Mitchener
King County Executive Ron Sims today signed a contract to convert landfill gas at the Cedar Hills Landfill to electricity that can be used in the region. The project reduces energy costs and reliance on energy markets for electricity, generates revenue for the county through sale of the landfill gas, and meets a growing consumer demand for energy produced from renewable sources.

"This project puts King County in the lead on the development of renewable energy in a region where people have voiced their strong desire for such a project," said King County Executive Ron Sims.

Renewable energy is gaining popular and political support. An independent poll issued recently revealed that nine out of ten Washingtonians back more renewable energy. The poll, commissioned by Renew Washington, showed that 93 percent of the 600 voters questioned favor increased use of renewable energy. The project could generate electricity to provide power to 16,000 households and will power the Cedar Hills landfill. Also, a bill requiring utilities to offer customers more options for renewable energy is currently before the state legislature.

The county's landfill gas-to-energy project was announced in October of 2001 and was hailed by the US Environmental Protection Agency (EPA) as one of the "most productive and environmentally-positive new landfill gas projects on the horizon in America." The program aims to capture gas produced as a normal part of decomposition of garbage at the Cedar Hills Landfill and converts it to electricity. In June 2003, the Houston, TX-based Energy Developments, Inc. (EDI) was chosen based on its meeting stringent requirements for energy production, environmental performance, and community involvement.

Under the terms of the contract, EDI will build, own and operate a power plant at Cedar Hills that converts landfill gas to energy. EDI will bear all costs of developing and operating the plant, and the county will receive at least $400,000 of revenue a year through the sale of landfill gas to EDI.

The project provides numerous environmental and financial benefits to the region. In addition to the $400,000 generated through the sale of gas to EDI, the county expects to save $80,000 annually in energy costs because the landfill's gas collection system will be powered with energy from the EDI plant instead of energy King County now purchases on the open retail market.