How a factory pays back solar in 38 months

Accelerated depreciation, demand-charge savings and DG displacement: the real maths behind a 450 kW plant.

Commercial tariffs in Maharashtra run above ₹11 per unit once demand charges and taxes are added. That changes the maths completely.

The three savings streams Energy charges replaced by solar units, lower diesel use during daytime outages, and the 40% accelerated depreciation benefit in year one.

A real example Our Chakan plant cost ₹1.9 crore and saves about ₹51 lakh a year. After the tax shield the effective payback is just over three years, for an asset with a 25-year life.