What is landfill gas-to-energy?

The process begins with the disposal of organic-rich solid waste into sanitary landfills.
As the waste decomposes, methane gas is produced.
The gas is recovered by a series of wells drilled into the landfill and interconnected by a common collection system that transports the gas to a compression facility.
There, the gas is compressed, dried and filtered before being sent through turbines or engines to produce electricity.