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Powerwall 2 and Integrated Solar

powerwall.tesla.com

81–90 of 341 posts

Re: Powerwall 2 and Integrated Solar

#81

Earlier quoted context omitted.

Where are you seeing $3000? When I set it to 1 Powerwall it tells me: One 14 kWh Powerwall battery $5,500 Installation and supporting hardware starts at $1,000 Total estimate $6,500 Requires $500 deposit for each Powerwall

Hm for that price I can install a natural-gas generator. Have power for days if necessary, full power on all circuits.

For the price of a natural gas generator I can get 14kWh battery based storage and I can go off-grid if I want, that's terrific.

Re: Powerwall 2 and Integrated Solar

#83

Earlier quoted context omitted.

Note that what he said is that the solar roof plus the electricity that it generates is cheaper than a conventional roof. The up-front cost is higher for the solar roof. So, yes, there are assumptions in there: how much power can be generated, how valuable will it be 10 years from now, etc.

You also now get a 30 percent tax credit to replace your roof. Before, you'd be entirely out of pocket for the roof, separate from the solar install.

This is big. My roof cost nearly double what my solar installs did, and getting the tax credit on the roof might have paid for the additional cost of the solar tiles over standing seam metal. (Not that I don't love the metal; it's awesome.)

Re: Powerwall 2 and Integrated Solar

#84

As much as I like the idea after reading about the Note 7 and then a battery fire at DARPA I'm not fond of a giant battery lithium-ion battery in my house.

Tesla has lots of experience packing cells with their vehicles. I would trust them to get it right. Also they have much more space to work with versus a phone.

I wonder how the safety of this will compare to gas: http://bloximages.chicago2.vip.townnews.com/qctimes.com/cont...

Re: Powerwall 2 and Integrated Solar

#86

Earlier quoted context omitted.

Where are you seeing $3000? When I set it to 1 Powerwall it tells me: One 14 kWh Powerwall battery $5,500 Installation and supporting hardware starts at $1,000 Total estimate $6,500 Requires $500 deposit for each Powerwall

Hm for that price I can install a natural-gas generator. Have power for days if necessary, full power on all circuits.

Natural gas generators don't have tax credits for their purchase.

Re: Powerwall 2 and Integrated Solar

#87

Interesting to see Tesla of all people estimating energy consumption on the basis solely of how many bedrooms your house has, and not adding on how many electric cars you need to charge...

Bedrooms generalizes better for new customers.

...additionally, who's to say a Model S isn't a bedroom in your garage? /s

Re: Powerwall 2 and Integrated Solar

#88

For $3000 this would be easy to justify just to keep my computer and network operating. I work at home and our power goes out too frequently. Is usually just for 10-20 seconds and my UPS takes care of that. But sometimes it is out for several hours - I'll say several times per year. If I can't work, I can't bill.

Where are you seeing $3000? When I set it to 1 Powerwall it tells me: One 14 kWh Powerwall battery $5,500 Installation and supporting hardware starts at $1,000 Total estimate $6,500 Requires $500 deposit for each Powerwall

I don't see $3000 - that's my point. But for $3000 I'd buy one.

Re: Powerwall 2 and Integrated Solar

#90
post #59

Earlier quoted context omitted.

But you won't get much solar electricity during winter in Quebec anyway would you?

Cooling a house during the summer in Texas can easily cost the same amount if not more, and you get a ton of sun during that time. The point is that for single family homes electricity does not usually cost $40/month.

But the price for the equal amount of power walls needed for a bigger house vs a small 1 bedroom raises too, according to the calculator on their site it will cost $30k+ to install it for 4 bedroom house.
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