Valdemar
Posts: 2625
Joined: Tue May 10, 2011 10:32 pm
Delivery Date: 09 Sep 2011
Location: Oak Park, CA

Re: SolarEdge EV Charging Inverter

Fri Oct 19, 2018 3:12 pm

$4,000 should be enough to keep water warm in my house for 10 years if not more.
'11 SL, totaled
-1CB@33k/21mo, -2CB@53k/33mo, -3CB@68k/41mo, -4CB(41.5AHr)@79k/49mo, -5CB(38.85AHr)@87.5k/54mo
-0CB(66.14AHr)@87.5k/54mo (BBB), -1CB(53.92Ahr)@140k/29mo,
51.1AHr, SOH 80%, 150k miles

9kW Solar

HerdingElectrons
Posts: 127
Joined: Sat Sep 08, 2018 3:20 pm
Delivery Date: 17 Sep 2018
Location: Central Coast, Ca

Re: SolarEdge EV Charging Inverter

Fri Oct 19, 2018 6:29 pm

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
2018 SL Pearl White 4.2/3.7 Warm/Cold weather

09/2018 @ 1,000 miles: AHr= 114.52 / SOH= 99.20 / HX= 099.70%
04/2019 @ 10,500 miles: Ahr= 111.45 / SOH= 96.54 / HX= 113.82%
07/2019 @ 14,200 miles: Ahr= 110.52 / SOH= 95.74 / HX= 111.12%

Levenkay
Gold Member
Posts: 517
Joined: Mon Sep 26, 2011 10:01 pm
Delivery Date: 11 Aug 2018
Leaf Number: 308382
Location: Portland, OR

Re: SolarEdge EV Charging Inverter

Tue Oct 30, 2018 12:35 pm

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...

Valdemar
Posts: 2625
Joined: Tue May 10, 2011 10:32 pm
Delivery Date: 09 Sep 2011
Location: Oak Park, CA

Re: SolarEdge EV Charging Inverter

Tue Oct 30, 2018 10:41 pm

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.
'11 SL, totaled
-1CB@33k/21mo, -2CB@53k/33mo, -3CB@68k/41mo, -4CB(41.5AHr)@79k/49mo, -5CB(38.85AHr)@87.5k/54mo
-0CB(66.14AHr)@87.5k/54mo (BBB), -1CB(53.92Ahr)@140k/29mo,
51.1AHr, SOH 80%, 150k miles

9kW Solar

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