India’s solar sector has spent the last 18 months on a tender-driven downward cost spiral that threatened to leave wind power looking expensive by comparison – but the gap closed on Friday.

The first 1GW reverse auction for large-scale wind deployment in India delivered prices as low as 3.46 rupees/kWh (0.052/kWh), well down on the rates of around 5 rupees or more seen in the tariff-based mechanisms used to procure wind in the country up to now.

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