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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 mikeash on Friday February 05, 2016 @01:32PM (#11043524)
The article is all about storage for the electrical grid, to shave peak demand and allow more wind/solar use, so portability isn't a requirement.
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