RUTLAND, Vt. (AP) - Vermont's largest electric utility is launching a potential power-saving experiment that would use ice created at night when energy is cheap to cool buildings during the day, potentially saving money on air conditioning.
Green Mountain Power is installing three energy storage systems, called Ice Bears, in two building in downtown Rutland.
The system attaches to a building's existing rooftop air-conditioning system. The system stores cooling energy at night and uses that energy the following day.
During the day when it's hot, the system uses the ice, rather than the air conditioning unit's compressor, to cool the hot refrigerant, slowly melting the ice and cooling the building.
The pilot project is being managed by GMP's Energy Innovation Center, which is developing energy saving projects in the Rutland area.
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