Yep seems like the real deal, but don't hang your hat on it costing $3000 here.
I am told that hooking up a 7 kWh system to our existing solar panels, and making all the mods that are needed will cost about A$15,000, and a 10 kWH unit for my office about $25,000.
Though it could cheaper when China starts making them.
The question for the future will be can we afford to do it, or not to do it !
Everything's already MIC. Profit margins I think are fairly high for solar systems as there's a fair amount of tailoring to individual installs. One big company producing a single widget is going to help that a fair bit but the battery is only one pet of the picture.
His $3k figure is fine as far as it goes but it's only a bit of a system.
His system doesn't include an inverter (which converts DC volts - the type in a battery - to AC, which is what your house runs on). Which is probably another grand or two.
And there's other costs as well - panels being the big one. Solar panels need to be clean to maintain efficiency - and they drop off as they age, regardless. (As do batteries). Let alone weather. A solar system in one part of the world is going to have a far different output in another place - let alone seasonal variations. None of which people really like.
As far as I can see this is just a battery, with some software smarts. It might well be a better battery than most but that's not really been the sticking point so far.
Add panels, inverter, install - I think we'd be looking at closer to $10k here. Plus legal/contract issues, the red tape here is pretty restrictive and the coal lobby still have a lot of political sway, we can't even convince them to plan for the coal running out, good luck getting them to give up their market!
And I still can't really see how a localised system would in any way be cheaper or more efficient than a centralised, solar-and-battery commercial station type arrangement. We don't all have a little coal station in our backyards...