4 ms·
That probably flips the balance from "use solar thermal" to "use PV and heat pumps", especially in any environment where indoor cooling is simultaneously needed
by sokoloff 3y ago
That probably flips the balance from "use solar thermal" to "use PV and heat pumps", especially in any environment where indoor cooling is simultaneously needed (which is a common case).
If solar PV is 25% efficient and the heat pump CoP is then 4.0, you get a gross efficiency of 100% (plus "pre-paid" air conditioning).