Longer lasting storage needs cheaper chemistries

Energy storage is often mentioned as one of the remedies for California's duck curve problem, but the economics do not always work out.

The technology is essential to a clean energy future, but it will be important to develop lower cost batteries with longer durations, according to speakers at the California ISO's recent Stakeholder Symposium.

Grid scale energy storage is on the cusp of rapid growth, but "to get to long duration storage, we need to have the capital costs 10 times lower than they are for lithium ion than they are today," Yet-Ming Chiang, Kyocera professor at Massachusetts Institute of Technology said at the conference.

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