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stevehull · 02-19-14, 07:13 AM

Great discussion! I had not thought about the implications for low cost PV competing with solar hot water collectors.

In a home renovation I am planning, am strongly considering the use of a geothermal heat pump for both domestic hot water and for radiant heat. Also incorporating about 10 kW of PV with grid tie. The high COP of the water heater makes sense.

I had not fully recognized the implications of the long term storage of watts "on the grid" but it just makes sense now that I think of it.

Steve

02-19-14, 07:13 AM	#8
stevehull Steve Hull Join Date: Dec 2012 Location: hilly, tree covered Arcadia, OK USA Posts: 826 Thanks: 241 Thanked 165 Times in 123 Posts	Great discussion! I had not thought about the implications for low cost PV competing with solar hot water collectors. In a home renovation I am planning, am strongly considering the use of a geothermal heat pump for both domestic hot water and for radiant heat. Also incorporating about 10 kW of PV with grid tie. The high COP of the water heater makes sense. I had not fully recognized the implications of the long term storage of watts "on the grid" but it just makes sense now that I think of it. Steve __________________ consulting on geothermal heating/cooling & rational energy use since 1990