Rockingham

About This Project

AGL has undergone the development of a 2MW build-own-operate landfill gas extraction and power generation facility at Gosnells City Council Kelvin Road Waste Disposal Facility. Methane-rich gas is produced by decomposing organic waste from within the landfill. This project involves the extraction and combustion of landfill gas to generate electricity.

The gas is extracted from the landfill through an array of wells interconnected by a network of buried pipes. A blower is used to actively draw the landfill gas into the extraction system. The low voltage output from each generator is connected to a step-up transformer. Due to variable voltage fluctuations shunt reactors were also designed and installed to allow the station to stay on line during Western Power voltage excursions. High voltage electricity is exported to the grid from the transformer. The generator is located in an acoustically lined building that also houses the control room and workshop in separate rooms. The building and remaining plant are enclosed within a fenced compound. The station is unmanned and remotely controlled and monitored. The generator operates 24/7.

The 1 MW generator is capable of providing enough electricity to meet the needs of around 2000 homes. The system reduces greenhouse emissions from the landfill by around 45,000 tonnes of carbon dioxide equivalent annually.