bkp_duke
Well-Known Member
No tundra over here, SF East Bay Area in California. Yesterday 105F peak this year 113F, and in the winter usually drops to 30F. Homes here are notoriously badly insulated because of the earthquake friendly light architecture and less extreme weather when they were built in the 80's.
Sounds like you life in a sweet spot, and I am with you in that I did not replace our gas water heater since it only uses $10/month - surprising to me that your heating doesn't push you past that significantly even when used lightly but maybe your gas prices are also lower.
Our $1600/year cash flow for the gas furnace is what I aimed to redirect with the heatpump.
Great to hear you don't even need net metering, wouldn't pencil out the same way for us without it.
It's a new home here, reasonably-well insulated (by SoCal standards). The cost to pull out and replace the HVAC/NG Furnace combo units is about $40k (it's a large home with 2 units). Last year we used something like less than $800 in NG overall . . . so yeah . . . the units will be well past their expected lifetime (and mine!) before they even came close to break-even. Now, if one dies and has to be replaced, that's a totally different story.
Regarding not needing net-metering - go to the Tesla Energy sub-forum of TMC, and look around about the SGIP rebates. CA state rebates paid for the bulk of our 4 powerwalls through rebates administered through the utility. There are some interesting loopholes that our neighbors have used to get as many as 4 powerwalls fully paid for by the state program (i.e. medical needs - any device like a CPAP or something that can't be without power would qualify someone).
My last OT post on this, promise investment friends.