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Rooftop solar's promise hits reality: Who pays for night-time power?

Battery mandates and lower buyback tariffs aim to ease discom losses, but risk slowing household adoption of solar power

solar, solar power, solar panels, solar projects
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(Image: Bloomberg)

Sunita Narain

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Think of “roof”, and you see solar panels. Think of “solar”, and you see the energy generated during the day — powering appliances and even feeding into the grid, from which it can be brought back at night when the sun is not shining. It’s the world’s most uber solution, where each of us becomes a generator of electricity. It works because solar is modular: The panels can fit almost anywhere, unlike thermal or nuclear generators. While building utility-scale solar plants requires vast amounts of land, which is always scarce and often contested, in this model every available
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