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A comment on From liquid air to supercapacitors, energy storage is poised for a breakthrough. Parent comment

Re:From liquid air to supercapacitors, energy storage is poi... by beat on Friday February 05, 2016 @03:24PM (#11044344)
Batteries are becoming cost-competitive as well.

And as I said earlier, the economics don't need to work now in order to justify pilot programs and research, due to the long timelines involved in radically changing how the grid works. The assumption that the economics will work in the foreseeable future is enough.

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Re:From liquid air to supercapacitors, energy storage is poi... by nordify on Friday February 05, 2016 @03:46PM (#11044479)
> Batteries are becoming cost-competitive as well.

Can you quantify that?

As far as I can tell the Powerwall is about as cost-competitive as battery storage gets and that's still far more expensive than just using grid power.

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