In Rajasthan's endless sun, pumped hydro is far cheaper for our large grid-scale needs, and its concrete structures outlive any battery by decades. Yet I insist batteries have their place for lasting value here—specifically the lithium arrays we pair with our solar fields, because they respond instantly when dust storms suddenly cut our generation. This reliability prevents penalties and keeps our lights on, something a distant mountain reservoir cannot do for our desert plains. It reminds me of my old Tanpura; the cheaper wood might warp in the monsoon, but the well-maintained strings, though costly, give music every evening without fail.
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