Landfill gas-to-energy facility provides green energy to local utility
Landfilling is the main method for disposal of municipal and household solid wastes in Canada and the United States. Usually maintained in an oxygen-free environment, landfill waste produces significant amounts of landfill gas (mostly methane). These energy rich by-products produced at landfills require proper management to avoid odor and air emission issues.
For years, the Cache Creek Landfill collected and flared landfill gas, emitting greenhouse gases (CO2) into the atmosphere without deriving any benefit from the energy rich fuel. The organization managing the landfill recognized an opportunity to create a green energy facility and worked with British Columbia’s government program for the installation of a 4.8 MW landfill gas-to-energy facility.
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Reuse
Designed to
performance of the engine output while
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Successful project
delivery
on time and on budget
of landfill gas to produce electricity in lieu of flaring
long-term maintenance costs on the engine
improve
reducing
tej.gidda@ghd.com
519 340 3941
Waterloo, Canada
Tej Gidda
Global Leader -
Future Energy
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GHD’s energy and design team completed the detailed civil, structural, mechanical, and electrical design associated with the landfill gas-to-energy facility at the Cache Creek Landfill site. GHD also managed the construction of the mechanical and electrical installations, including commissioning.
The system consists of three Caterpillar 3520C reciprocating gas engines operating on landfill gas capable of generating 4.8 MW of electrical power. The electrical power injects into the local electrical utility at 27.6 kilovolts. The controls for the plant are within the electrical room and the operator office. Plant operators are also capable of remotely monitoring the facility.
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