Hello
I have completely insulated my house to Minergie standard or slightly better. I originally planned to install vacuum tube collectors for domestic hot water and possibly heating support. In the fall, a air-source heat pump will be added to replace the oil heating system. When I calculated the extra effort honestly, I realized that I would not have enough savings to amortize the investment through the yield. Now I’m considering installing photovoltaic panels instead. Since the heat pump hopefully has a COP of 3-4, I’m curious about the energy yield for example in relation to domestic hot water preparation. Has anyone done the calculations? Does it produce more or less power from the same roof area compared to vacuum tube collectors?
Regards
I have completely insulated my house to Minergie standard or slightly better. I originally planned to install vacuum tube collectors for domestic hot water and possibly heating support. In the fall, a air-source heat pump will be added to replace the oil heating system. When I calculated the extra effort honestly, I realized that I would not have enough savings to amortize the investment through the yield. Now I’m considering installing photovoltaic panels instead. Since the heat pump hopefully has a COP of 3-4, I’m curious about the energy yield for example in relation to domestic hot water preparation. Has anyone done the calculations? Does it produce more or less power from the same roof area compared to vacuum tube collectors?
Regards
H
Hannes1983-127 Oct 2015 12:24This needs to be calculated precisely, and from my assessment, the long-term payback of this system is unlikely. Therefore, I think a combination is a good solution: a wood heating system with solar panels.