With the use of an anaerobic digester, Capstone microturbines are able to cleanly and effectively run on methane gas from landfills, wastewater treatment facilities and food processing facilities, as well as agriculture waste, which is often referred to as “green waste.” Rather than simply venting or flaring the methane gas, Capstone microturbines can convert this free fuel to clean and reliable electricity for use at the site or surrounding areas. Capstone offers its "CR" (Capstone Renewable) line of microturbines specifically designed to operate on waste gas fuels.
A Capstone C1000 and C600 operate on natural gas and biogas produced from York's 26 million gallons of sewage each day. "The Capstone microturbines produce 40 percent more power using the same amount of natural gas than our internal combustion engines, that's incredible. The Capstone turbines had some advantages over other manufacturer's turbines, one being that there was no liquid lubricant in the system at all. It was all air cooled, air lubricated, very low maintenance costs. The only thing that we routinely need to check is an air filter, and that's it. The other thing that people don't think about with a wastewater treatment plant is we also have the air to deal with. These microturbines emit so much less air pollution than the engines that we currently run to the point where I may not even have to report to the agency, the DEP, the amount of pollutants — it's going to be negligible."
tons of CO2 reduced annually at Cossato Spolina Wastewater Treatment Plant
Energy efficiency exceeded at Revico Wastewater Treatment Plant