Arizona landfill gas power plant begins generating energy

Glendale, Ariz., January 27, 2010 – The Glendale Energy Power Plant, a 2.8 MW biogas plant located at the City of Glendale’s Municipal Landfill, is now on line.

Owned and operated by Glendale Energy LLC, an affiliate of Sexton Energy, the power plant is sending all its energy to APS customers.

“The Glendale landfill is a vital resource to the community and this project expands its value, going from safely disposing all of Glendale’s waste to now also generating power for Glendale and the surrounding area,” said Stuart Kent, City of Glendale’s Director of Field Operations.

The decomposition of organic materials at landfills creates a highly-flammable gas consisting mainly of methane. Instead of simply burning the gas for safety reasons the Glendale Energy Power Plant will use the biogas as fuel for two large combustion engines, similar to automobile engines.

However, at the power plant the engines are much larger and instead of turning wheels, the engines turn a shaft connected to a generator that produces electricity.

APS customers receive the energy through a long-term power purchase agreement between the utility and Glendale Energy LLC. This is the first biogas project in APS’s 245-MW renewable energy portfolio, which also includes generation from solar, wind, geothermal and biomass.

Including energy from the Glendale facility, the combined electricity from these resources can meet the needs of 60,000 Arizona homes. The energy will go toward helping APS meet the Arizona Corporation Commission’s renewable energy standard of 15 percent by 2025.

Sexton Energy LLC, the parent of Glendale Energy, is an Illinois-based company specializing in landfill gas to energy projects. Sexton has three other facilities operating in Illinois.


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