Negawatts for EV's

[aerostealth]

Good for you, but I live in the desert southwest USA and can expect better performance. I don't but the annual inspection or the eight year story as it sounds anecdotal to me.

[oil pan 4]

I was expecting more like a 4 year pay back for mine.

[ksa8907]

I'm replacing my 15yr old electric for a gas heater soon. Should save me about $40/month, we use hot water for pretty much everything. The efficiency is in the toilet from all the calcium and lime buildup. 12 month payback.

[redpoint5]

I'm always surprised when I see a house with natural gas service, but an electric clothes dryer. That's probably the #3 largest consumer of electricity assuming electric house heating and electric water heating. Even crazier when the washroom is already plumbed with gas service.

I expect everything will be electric one day, but that day still seems very far off. I also expect just 1 data line to the home one day that serves phone, internet, TV, and anything else utilizing data.

[aerostealth]

I guess you missed my point that gas or propane are carbon emitters. Electricity tied to grid tie solar is not for the most part except when you aren't generating and even then your excess power generation that you sell creates an offset because others get to use it.

Energy is energy and heating water takes a fixed amount of it all other things being equal. Unfortunately electrical resistance water heating is not a great idea because heating water takes a lot of energy and it could use up a great deal of PV capacity unless you are using excess capacity for that purpose explicitly.

This is what is making the heat pump water heating process so lucrative from my point of view. Using 3.5 times less electrical energy to heat the same amount of water with the saved power being used to charge an efficient EV seems like a win win to me unless I am missing something.

[oil pan 4]

In a few years we. The heat pump breaker you will be on resistance heating.
Just remember during this time china likely opened a new coal fired power plant.
Going out of your way to save a little CO2 is really pointless now.

[aerostealth]

It is pointless to think like this. I believe it is called a self fulfilling prophecy. Saying it is pointless to conserve energy and money is just, well crazy.

[oil pan 4]

Nothing wrong with conserving energy.
With panel prices so cheap and utilities charging so much in some areas you should put up some panels. Unless the power company has stacked the deck so far against you to where you would paying them to produce electricity.

[ksa8907]

If you've got solar production and can use it to heat you water, that would be perfect. Probably the cheapest fuel possible since the panels are already purchased and work nearly indefinitely. I saw a video recently of a guy who built a thermal battery for his water heating. I'll try and find it to link.

[roosterk0031]

I've been thinking about HPWH for years, Heat Tap I think was an early add on style. Problem is, during heating season, it takes the heat out of the air in the room to put it into the water. So my furnace has to make up the difference so I'm really still heating water with propane (some heat does come from basement walls/floor).

My water heater also does double duty heating some floor slab mostly at night so I'd just be moving heat, cooling the basement while heating a floor.

During summer it would work great cools and dehumidifies the basement while heating water, way better than running a dehumidifier, just too expensive for seasonal use.