Microturbines process methane into energyProblem
The Sheboygan (Wis.) Regional Wastewater Treatment Plant, which treats up to 15 mgd, had a surplus of biogas. More than 25 percent of the gas was being flared at the plant site. At the same time, the municipality wanted to reduce electricity costs.
Solution
Ten clean-burning biogas-fueled C30 Microturbines from Capstone Turbine Corporation generate up to 300 kW of electrical power (2,300 MWh per year). Heat recovery modules on each turbine capture exhaust heat, which is used to maintain the digesters 95-degree F temperature and heat buildings. A gas-cleaning system removes moisture and siloxanes from the raw
