If your hospital, campus or commercial building in Maharashtra is planning new rooftop or captive solar above 100 kW, plan for a battery alongside it. Here is what is on the table, a worked sizing example, and the questions worth asking any supplier. What is on the table Maharashtra's RE and Storage Policy, notified in March 2026, is reported to link storage to new solar above 100 kW: a battery of at least 50% of the solar capacity, for at least 2 hours, for applications from