India drafts storage mandate for ground-mounted solar and onshore wind
India's Central Electricity Authority published a draft second amendment to its construction technical standards on September 3, 2026 that would require ground-mounted solar and onshore wind plants commissioned after July 1, 2027 to have co-located energy storage of at least 10% of installed capacity with a two-hour minimum duration, rising to four hours for plants commissioned between July 1, 2029 and June 30, 2031. Renewable plants commissioned after July 1, 2027 would also need grid-forming control on at least 15% of inverters; comments are due October 4, 2026.
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