About Landfill Gas
Landfill gas is produced from decomposing garbage. This gas is mainly made up of carbon dioxide and methane. Methane is an energy source, but is also a greenhouse gas (GHG). It is flammable and explosive in certain concentrations, which is why it needs to be controlled. Since 1991, Hartland has been collecting this gas using a network of wells and pipes. Until 2003, the landfill gas was burned using a flare to reduce GHGs.
Turning Garbage into Electricity
In 2003, a landfill gas-to-electricity plant was built next to the flare station to utilize the methane in the landfill gas to produce electricity. The facility now produces close to 1.6 megawatts of green power – enough electricity to supply about 1,600 homes.
The CRD hopes to optimize landfill gas production with a 75% capture rate by 2016.
How We Do it
The facility contains a reciprocating engine which works very much like a car engine, except instead of gasoline, methane is the fuel. Mechanical energy is turned into electrical energy. The electricity produced is fed into the existing BC Hydro distribution system on-site.