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Freewatt Micro-CHP Monitoring

Primary Partner: CDH Energy Corp.
Project Type: Other
Web Address: http://cdhenrgy.user.openhosting.com/freewatt/freewatt.py

Description:
Syracuse University as part of the Syracuse Center of Excellence (SyracuseCoE) has installed a Freewatt micro-CHP system at a home on the Near Westside of Syracuse. The purpose of this field test is to measure and confirm the energy and environmental performance of this innovative system. This residential-scale combined heat and power (CHP) system has been developed by Climate Energy. The system includes a natural gas-driven engine generator that provides about 1 kW of electric power for the home. Waste heat from the engine is used to provide space heating for the home. The system combines a Honda engine generator and a conventional gas furnace for backup heating. The furnace includes a hot water coil in order to use heat from the engine jacket to provide space heating. A Monitoring Plan summarizes the instrumentation and systems that have been installed and provides the rationale for the test approach.

Expected Outcomes:
The Freewatt system should provide electricity and capture waste heat from the generator to provide a efficient way to power and heat a home.

Accomplishments:
CDH found the cost savings from the Freewatt system relative to a conventional 93% efficient, two stage gas furnace are about $210 per year. One reason for the relatively low savings is the modest electrical efficiency of the unit. The measured elecrical efficiency of the Freewatt is about 22% based on higher heating values (HHV).



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