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Wastewater treatment plants represent a unique opportunity for fuel cell power plants. The methane produced from the wastewater treatment plant's anaerobic digester is used as the fuel to generate ultra-clean electricity that powers the wastewater treatment plant while byproduct heat from the DFC fuel cell can be used to heat the sludge to facilitate anaerobic digestion. This Combined Heat and Power application results in up to 80% efficiency. Moreover, wastewater treatment gas is a renewable fuel eligible for incentive funding for projects in 28 states, Washington D.C., and many countries throughout the world.
In many applications digester gas production volume is variable. In such applications, the plant can be designed to operate with automatic blending with natural gas. Over 30% of FuelCell Energy's Direct FuelCell® (DFC®) installations operate on renewable biogas.
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Methane gas produced by the anaerobic digester process in wastewater treatment plants can be used as fuel for the Direct FuelCell (DFC). |
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