Although the swine sector of the biogas industry is dwarfed by the dairy sector, it still accounts for about 8% of the farm-based biogas output in the US. Growth in the volume of biogas produced from swine manure, coupled with a huge untapped potential, suggests the swine sector could play an important role in both US methane emission reductions and renewable energy production in the future. The poultry sector is currently at about 4% of overall biogas output. Patrick Serfass, Executive Director of the American Biogas Council, joins us with more details.

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