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Re: SolarEdge EV Charging Inverter

Posted: Fri Oct 19, 2018 3:12 pm
by Valdemar
$4,000 should be enough to keep water warm in my house for 10 years if not more.

Re: SolarEdge EV Charging Inverter

Posted: Fri Oct 19, 2018 6:29 pm
by HerdingElectrons
RegGuheert wrote:So how much does it cost to run a natural gas water heater (50 gallons)? (FWIW, I just used the numbers from the sticker on the side of the water heaters for my calculations.)
Maybe this will help you:

https://www.energy.gov/eere/femp/energy ... -heaters-0

Re: SolarEdge EV Charging Inverter

Posted: Tue Oct 30, 2018 12:35 pm
by Levenkay
Would there be any merit in using a heat-pump water heater, where the heat input side of the heat pump (its cooling coils) was thermally bonded to the back-side of a solar PV array? Chilling the PV ought to boost its efficiency plus dump gobs of heat into the pump...

Re: SolarEdge EV Charging Inverter

Posted: Tue Oct 30, 2018 10:41 pm
by Valdemar
Levenkay wrote:Would there be any merit in using a heat-pump water heater, where the heat input side of the heat pump (its cooling coils) was thermally bonded to the back-side of a solar PV array? Chilling the PV ought to boost its efficiency plus dump gobs of heat into the pump...
A roof-mounted solar water heater seems like a simpler solution that also works better.