Posted on 05/01/2015 12:33:33 AM PDT by goldstategop
Chief executive Elon Musk announced the firm would build batteries that store solar energy and serve as a back-up system for consumers during blackouts.
The device would allow consumers to get off a power grid or bring energy to remote areas that are not on a grid.
Tesla plans to start shipping the units to installers in the US by this summer.
In a highly anticipated event near Los Angeles, Mr Musk said the move could help change the "entire energy infrastructure of the world".
"Tesla Energy is a critical step in this mission to enable zero emission power generation," the company said in a statement.
The rechargeable lithium-ion battery unit would be built using the same batteries Tesla produces for its electric vehicles, analysts said.
The system is called Powerwall, and Tesla will sell the 7kwh unit for $3,000 (£1,954), while the 10kwh unit will retail for $3,500 to installers.
(Excerpt) Read more at bbc.com ...
what is the COST per KW.... and how long is the battery life
if economical it could boost the stock because the car sure wont...
Is there enough lithium in the earth’s crust to satisfy these visions of Musk?
So you only turn on five 100 Watt bulbs for one hour each day and no other loads? Or run one hair drier for 15 minutes and turn nothing else on all day?
I think you need new calculator batteries.
Be fair and assume zero load when he’s sleeping, so it’s 500 W over 16 hours = 31 W. Now we’re cooking! Amost enough to run the iPad charger. Too bad the wifi WAP / router is down, though, due to lack of juice. My iPad DOES put out a lot of light which keeps those pesky old Edison base bulbs dim.
Factor in the cost of a dedicated detached heated/cooled shed out back. I wouldn’t want that much LiIon on my house.
Thanks to all posters.
Don't see him as much different than Henry Ford in that respect.
Where they differ is that Ford made a product that people needed and wanted, and grew wealthy by selling lots of it.
Musk has grown wealthy by promising to sell a product that few want and none need, and selling little of it.
Is there a tax credit (taxpayer subsidization) for this?
Diversifying the electric grid is a good idea but of all sources of power, photo PV cells have are uniquely vulnerable to instant and total destruction by an EMP. Every PV cell in line of sight of an EMP will be destroyed. There is no way to protect them. They are basically EMP antennas.
So, it is just plain imprudent to use PV solar for more than a few percent of our power generating capacity.
Another factor in favor of solar/battery storage is their silence.
During some power failures, a generator will be a dinner bell for hungry predators.
How is Tesla doing on the new type of car battery they've been working on? You know for the $30K 300 Mile car.
ßookmark ed
Your meter reports it as KiloWatts (not kwH).
So you use 0.300-0.500 KW, which is about right for a home where the big stuff is off (stove, dryer, etc.)
So if you are drawing 0.500 KW for 24hrs you multiply the two and get 12kw-H for the day.
I’m pretty good at conserving electricity, although I use a little electric heating, but I still used about 133 KWH per month for January and February.
BFL
My generator masks the noise of suppressed .22 LR firing from the back deck ;) Glad I live in rural AR (outside Little Rock)....lots of good ole boys with NFA toys around here since we have John Norrell (www.johnnorrellarms.com) around here cranking out suppressors.
Besides the noise it’s easy to tell who has power during an outage after it gets dark. Looks like North Korea.
The batteries are the key -
you wouldn’t have to charge them from solar.
You could have your backup generator run when the batteries get low and charge them back up, and the generator could shut off.
Also, to keep them topped off, charge them from utility power for emergencies.
You’re right, I’ve tracked our usage carefully for years, and that’s right in the ball park.
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