I wonder if any heat pumps can emit the 600C they target for the storage mounds. If the COP of such a device was over 1, they could store more heat energy than

I wonder if any heat pumps can emit the 600C they target for the storage mounds. If the COP of such a device was over 1, they could store more heat energy than the PV’s emit in wattage. Also, they could use the waste cold air to cool the solar panels, which increases their efficiency.