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In Reply to: RE: Storage posted by b.l.zeebub on April 28, 2016 at 08:27:37
I read about that product last year - here. I just looked at the link which you provided, and they say "reserve yours", so it wouldn't surprise me if they're backlogged.
But shirley there are other companies who've figure out how to generate electricity and put it into a battery. That should be a "duh" project for any electrical engineer. Maybe I should get off my lazy butt and Google it.
:)
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The Telsa battery is unproven and quite expensive, about $5K. Then you have to add transfer switches and installation making it about $7-8K. And it's not big enough to store energy on cloudy days and barely big enough to make it overnight, so realistically, most families would need two or even three of the batteries.
You could use marine type batteries, but they need maintenance and venting to be safe which really means that they need to be installed outside away from the house adding more complexity.
To top it off, these batteries only last 5 to 7 years at best, so you're spending a bunch of money for a solution that isn't foolproof like just buying a generator that always works as a backup.
With the current net metering, I can produce 70 kWh on a day like today and only use 30 kWh during the day. At night, I can draw back from my surplus. It's simpler and cheaper than fooling around with batteries.
-Rod
In areas, like here in SoCal, we NEVER have brownouts or electric cuts at night. So, when you are putting the maximum from your solar back TO the grid, you are also probably using the most. Peak Summer Demand ALWAYS goes right along with the hottest days and greatest AirCon usage.
The only advantage is potentially making it so that the power company doesn't have to build as much extra capacity.
Cost of the Tesla battery will come down when a couple things happen. COMPETITION from others. Also, when production glitches are worked out and economies of scale kick in.
Too much is never enough
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