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A comment on Tesla's giant battery saved $40M during its first year, report says. Parent comment

Re:Tesla's giant battery saved $40M during its first year, r... by ksec on Thursday December 06, 2018 @03:44PM (#18622026)
Except we don't have any way to do it economically.
[ Parent | on HN ]
Re:Tesla's giant battery saved $40M during its first year, r... by ericd on Thursday December 06, 2018 @11:12PM (#18625085)
What’s expensive about it?
[ Parent | on HN ]