Electrician roughs in nine days from now and he wants to know what battery is going in the garage. My GC says lock the wall space and a conduit run, buy the box later. The electrician says where the gateway and transfer gear sit depends on the brand, so he needs the model. One of them is wrong.
One-story on slab, all-electric with a heat pump, 200A service. The garage is attached, north side, unheated, and it sees maybe 15F a few nights every winter. Ice storms here knock power out for two or three days. Backup target: fridge, heat pump air handler, lights, router, one bathroom.
What's on the table:
- Powerwall 3: 10 years of warranty as I read it, and our installer has done a bunch.
- FranklinWH aPower 2: also 10 years, more capacity per unit. One installer in range.
- EcoFlow TITAN 5000: 5 kWh floor-standing modules that pair with their own 10-circuit panel, so one more thing to place. Warranty is 5 years, it hasn't shipped, and the spec sheet's charging range starts at 32F, which is my garage problem.
I'm leaning toward Powerwall 3, but I'm also considering the EcoFlow TITAN 5000. It's cheaper and seems to offer better value for money, but I'm a bit hesitant given the shorter warranty, the fact that it hasn't shipped yet, and the cold-weather charging limitation. I'd love to hear what others think. Which would you choose?