Active Power Ships First CleanSource XR Unit

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acwp_logo.gifActive Power Inc (ACPW) announced the shipment of its first CleanSource® XR evaluation unit to one of the largest producers of electricity in the United States. The CleanSource XR unit will be tested under a variety of conditions for both backup power and load-shifting applications. CleanSource XR stores energy in the form of heat and compressed air. When power is needed, the compressed air is routed through a thermal storage unit to acquire heat energy. The heated air spins a simple turbine-alternator to produce 5 to 85 kW of electric power for up to several hours. Unlike commonly used lead-acid batteries and engine-generators, CleanSource XR is non-toxic and produces zero emissions. [ more ]