The lack of grid flexibility is impacting India's renewable energy sector, with solar and wind curtailment becoming a visible issue. This curtailment not only wastes clean energy but also limits the potential for further renewable energy expansion. In April 2026, renewable curtailment accounted for 37% of down-regulation, a sharp increase from near zero a year earlier. The report warns that without immediate deployment of battery storage, curtailment levels could exceed those seen in 2025, particularly during the post-monsoon period of October-November 2026. This could slow India's progress toward its renewable energy targets and increase reliance on coal, which is less sustainable and more polluting.