Panasonic Home Lithium Storage Battery

How do you store and manage your electricity?
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Striker
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Panasonic Home Lithium Storage Battery

Post by Striker »

Panasonic Home Lithium Storage Battery Can Power Your House For a Week.

http://gizmodo.com/5433066/panasonic-de ... for-a-week

http://www.physorg.com/news180778009.html

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Richo
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Panasonic Home Lithium Storage Battery

Post by Richo »

Physorg wrote: Solar batteries for home use and fuel cells can generate power but cannot store electricity, making the development of a storage battery an urgent task for related businesses.
So solar batteries generate power but cannot store electricity.
WTF
Comrade_leviathan wrote: Although, even if you were to take heating/cooling power out of the equation, a solid week of electrical power for everything else on a laptop brick-sized battery would be fu*%ing incredible
Too right!
Lucky no-one suggested it was the size of a laptop.
Even if it was you would need A LOT OF them.
Duh Image
BigDogues wrote: The average home power consumption in the US is 936 kWh/ month according to the EIA versus the average Japanese home at 310 kWh/ month
So 310kWh*12months/52weeks=71.5kWh for a week of energy.
Based on 0.8 DOD this would be ~90kWh pack.
Considering most eV's are 10-25kWh it would be like having 4 eV's parked in the garage!
What would you rather 4 eV's or a house than can live off grid for a week?
Otsubo(Panasonic Presedent) wrote: "We'll come up with products sought by middle-income people in such emerging countries as China and India, which haven't been hit by deflationary pressure..."

Middle-income people you say Image
So middle income people in China and India have the luxury of 3-4 eV's
Yeah Right
Me thinks someone had too much Sake at lunch...
So the short answer is NO but the long answer is YES.
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Panasonic Home Lithium Storage Battery

Post by djsharpe »

I do solar systems for part of my work. My next project which will sell solar to the grid and possibly resell off peak power for more at on peak times cannot proceed unless I go LFPs. They are the answer not only for transport but static solutions as well. DS
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Panasonic Home Lithium Storage Battery

Post by Electrocycle »

I noticed that Jaycar are now selling grid connected battery controllers, which you can use to store off peak power and run your house from it.
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Post by coulomb »

Electrocycle wrote: I noticed that Jaycar are now selling grid connected battery controllers...

That would be these SuperCombi Power Management Systems.

Interesting, thanks for the info.
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Post by Squiggles »

The one thing these don't do (unless I am misreading)is allow stored energy to be returned to the grid.
Grid connected inverters, that can feed the grid, are complex beasts, one major issue is that they must be shut down if grid supply fails, this means that you cannot use them as UPS.
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Post by coulomb »

Squiggles wrote: ...this means that you cannot use them as UPS.

Well, with the AC transfer switch, I think that in theory you could. It just seems like software to me. You "just" need to convince the authorities that there are no failure mechanisms where energy can end up being pushed out to the grid when it's down and supposedly not energised.
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Panasonic Home Lithium Storage Battery

Post by Squiggles »

coulomb wrote:
Squiggles wrote: ...this means that you cannot use them as UPS.

Well, with the AC transfer switch, I think that in theory you could. It just seems like software to me. You "just" need to convince the authorities that there are no failure mechanisms where energy can end up being pushed out to the grid when it's down and supposedly not energised.


If the CSIRO can't convince them I am damned sure I can't!!

Actually it is a very safety critical issue, so even though it sounds trivial in reality it probably isn't. I agree it sounds like software, but it probably requires dual dissimilar processors, dual programmes written by different software engineers.....no I am not joking, this is the sort of thing that is required at the highest safety level.
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Post by Electrocycle »

I think the main benefit to the individual would be effectively running your house on off peak power all the time.
Selling power back to the grid in peak times would be nice, but it will require a much larger battery pack as well as the larger, more complex inverter.
Don't forget that during peak loads, when the system would be of most benefit to the grid, it would also be of the most benefit to the house it's installed in!

Obviously providing some or all of the house's peak power requirements will also reduce load on the grid - and allows UPS functionality.
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Post by Squiggles »

I agree in principle, only thing is that the authorities complicate the issue by offering premium rates for power sold to the grid. In some states you could actually buy peak rate power and sell it back at a profit completely defeating the purpose.
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Post by antiscab »

im guessing the transfer on that jaycar inverter is rather fast.

the last inverter i bought (pure sine wave, 5kva cont, 10kva surge) was also meant to be hardwired to the house wiring.

when the grid is around, power goes straight through and the built in 50A 48v charger charges away.

when the grid disappears, the inverter disconnects the grid, side, and powers up the inverter.

doesn't do it fast enough to keep computers going, but then again, it was only AUS$1100 delivered.

having said that, most consumer hardware will run fine straight off a traction pack voltage (130-300vdc nominal)

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