Our Southern facing roof is covered in photovoltaic panels for household electricity and the Northern roof is covered in solar thermal panels for the pool.
Even though the thermal panels are on the north side, the roof gets enough sun to keep the pool warm for about 1/2 the year (shallow pitch, no shade).
The other 1/2 of the year, the thermal panels are doing nothing.
Given we get sunshine pretty much all year around, does anyone know if it would make sense to replace the solar thermal panels with photovoltaic cells powering a heat pump?
The 1/2 of the year where we're not using the pool, the photovoltaics would still be gathering electricity for the pump and other household uses and electricity is very expensive here (and will likely go up as PG&E continues to rack up fire bills).
I've read threads about heat pumps vs solar thermal and gas, but didn't see any that included the opportunity cost of losing half the roof that could be generating electricity the rest of the year.
Even though the thermal panels are on the north side, the roof gets enough sun to keep the pool warm for about 1/2 the year (shallow pitch, no shade).
The other 1/2 of the year, the thermal panels are doing nothing.
Given we get sunshine pretty much all year around, does anyone know if it would make sense to replace the solar thermal panels with photovoltaic cells powering a heat pump?
The 1/2 of the year where we're not using the pool, the photovoltaics would still be gathering electricity for the pump and other household uses and electricity is very expensive here (and will likely go up as PG&E continues to rack up fire bills).
I've read threads about heat pumps vs solar thermal and gas, but didn't see any that included the opportunity cost of losing half the roof that could be generating electricity the rest of the year.