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IIUC investing in PV is actually more efficient for heating/cooling than solar-thermal, because you can use them to run a heat pump, and heat pumps have somethi

IIUC investing in PV is actually more efficient for heating/cooling than solar-thermal, because you can use them to run a heat pump, and heat pumps have something like 400% efficiency (i.e. with 1 kWh of electricity they can pump 4 kWh of heat). Here in the Netherlands government is now trying to ramp down PV subsidies, because PV has been so wildly successful that electricity spot prices are actually negative at peak sun (midday). (Even without subsidies I believe the panels are now cheap enough to be worth the investment, though.)

BoiledCabbage 3y ago
> Here in the Netherlands government is now trying to ramp down PV subsidies, because PV has been so wildly successful that electricity spot prices are actually negative at peak sun Which means people should start buying batteries. Pull in power during midday at a profit, and then send it back out in the evening at a profit. I'm curious how long it'd take to pay back the price of a battery.