The sound's a little low, but check out this video from the POET Energy ribbon-cutting ceremony for some background on the EPA and promotion of landfill gas use.
I've always found it ironic that facilities which make biofuels (and, to be fair, other renewable energy products as well) use a whole bunch of non-renewable energy to run them and distribute their products. While perhaps an inevitability at this stage of the renewable energy game in many places, POET Energy is making an effort to change that. The South Dakota-based ethanol company has announced that landfill gas will now be used to supply about 90% of its steam needs, and has the potential to replace 90% of its total power needs:The landfill gas is being supplied by a 10-mile pipeline from the Sioux Falls Regional Sanitary Landfill. The 105 million gallon per year ethanol plant will use the landfill gas in a wood waste-fuel boiler to create process steam. This steam was previously generated from natural gas.
POET cites EPA statistics in saying that by switching from natural gas to landfill gas, it is the equivalent of removing 27,000 cars from the road, or sequestering carbon in about 34,000 acres of pine or fir forest.
More: POET Energy
20,000 Gallon Per Year Cellulosic Ethanol Pilot Plant Project Opens in South Dakota
First Commercial-Scale Cellulosic Ethanol Plant Approved for California
Landfill Gas to Energy: A Growing Alternative Energy Resource
Monterrey, Mexico Taps Methane to Power Its Metro System