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Draft rules would require storage for future solar and onshore wind projects.
Projects commissioned after July 2027 would need co-located storage equal to ten percent of installed capacity for two hours.
The required storage duration would rise to four hours for plants commissioned between 2029 and 2031.
Officials say the proposal is meant to support India's renewable target and maintain grid stability.
Why it mattersThe rule could raise project costs while improving grid reliability as renewable capacity grows.
More context
The reporting also notes that surplus clean energy and limited transmission infrastructure have led to power curbs.