The 5 Most Promising Long-Duration Storage Technologies Left Standing
GreenTechMedia
MARCH 31, 2020
And the lithium-ion batteries that supply 99 percent of new storage capacity today get very expensive if you try to stretch them out over many hours. The makeup of this roster has fluctuated to the rhythm of bankruptcies and new investments. The problem is, no clear winner has emerged to play that long-duration role. Pumped hydro.
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