Redvale Landfill and Energy Park is a landfill on Landfill Access Road at Dairy Flat, in the Rodney area north of Auckland, where the gas made by the buried waste is turned into electricity. The gas is collected and fed to nine one-megawatt generators on site. Apart from the power the site uses itself, the electricity goes into the national grid. The bioenergy facilities directory says that is enough to power the equivalent of 7,500 homes.
The site is listed in the bioenergy facilities directory, which covers renewable energy made from biological sources such as wood waste, manure and agricultural byproducts. Landfill gas is one of those sources. Redvale is one of the facilities the directory showcases for the Auckland region. For someone interested in how a landfill can produce energy, the site is a clear example.