HVAC on solar only?

[medium187mph]

I have no experience with solar set ups but proper insulation goes a long way… I’ve got spray foam in my crawlspace on the floor boards/joists and R14 in the attic floor and spray foam on the ceiling. My 2017 2 ton HVaC unit will freeze us out in the summer and smoke us out in the winter.

I also make sure my air filter is swapped out and clean as well as simple maintenance twice a year to keep the inside blower and outside condenser clean.

 

[moosensquirrel]

Solar-photovoltaic power is not a “green” technology. Being “green” is a deceptive PC-socialist-political invention that is designed to make people feel good about living lavishly riding the backs of productive taxpayers without having to put forth any effort to understand, much less solve the underlying problems associated with “green” energy.

 

[basstracker89]

Truly utilities are cheap compared to the alternatives. Hate to say it, but......The best you could reasonably hope for is a efficient window unit.
Now another route would be an old style attic fan. You'd be amazed how good these work. That you could run off solar.

 

[spencer60]

The South is just seeming to catch up with the northern climes on the value of good insulation. It's probably the single most important part of lowering electric bills.

That being said, going to a heat pump system is a huge win as well. The modern units are way more efficient than standard AC.

Captdave77 put a Bosch variable speed unit in a few years back when my upstairs unit died and it cut my power bill by about 1/4-1/3rd. GA Power routinely says on my bill that my house is one of the most power efficient in my billing area.

The reduced draw of a heat pump *might* allow it to work off solar, but I would think you would need a pretty hefty battery bank to run when it's hot and cloudy.

 

[thevalueman]

I have a 4 zone HVAC system in my house, one zone is the master bedroom....I have that zone shut off, and have a window unit that is on a timer....on at 7:30p off at 6:30a.....5,000 btu....I like to think I'm saving some money with the setup...maybe not....What I'm getting at is possibly breaking down the cooling needs into segments, like mentioned earlier....maybe not replace the whole system, but split up to overall need...still gotta do the math on requirements of the window units...

 

[DinkyDau]

The South is just seeming to catch up with the northern climes on the value of good insulation. It's probably the single most important part of lowering electric bills.

That being said, going to a heat pump system is a huge win as well. The modern units are way more efficient than standard AC.

Captdave77 put a Bosch variable speed unit in a few years back when my upstairs unit died and it cut my power bill by about 1/4-1/3rd. GA Power routinely says on my bill that my house is one of the most power efficient in my billing area.

The reduced draw of a heat pump *might* allow it to work off solar, but I would think you would need a pretty hefty battery bank to run when it's hot and cloudy.

He also did mine, and now for a 1,600 ft cabin in the mountains, my power bill runs on average $90.00 a month..Heat pump thermostat sits at 72 during the summer

 

[BillsCamino]

Gotta wonder if a split system would be less demanding on a solar system.
My 1 ton Mitsu split system in a 360 sf sunroom is 22 SEER and you can hang meat in here.
Only the ceiling and common house wall is insulated

 

[thevalueman]

I'm waaaay tooooo old to have my AC set at 72...I'd freeze!!! 75 is the lowest of all my settings

 

[Blue bio balls]

I have no experience with solar set ups but proper insulation goes a long way… I’ve got spray foam in my crawlspace on the floor boards/joists and R14 in the attic floor and spray foam on the ceiling. My 2017 2 ton HVaC unit will freeze us out in the summer and smoke us out in the winter.

I also make sure my air filter is swapped out and clean as well as simple maintenance twice a year to keep the inside blower and outside condenser clean.

Spray foam in crawl spaces, limit your ability for termite inspection.

 

[medium187mph]

Spray foam in crawl spaces, limit your ability for termite inspection.

I guess it could but it’s just the underside of the floor boards. Still plenty of area exposed to review and inspect pipes/electrical