The cost of the solar system is coming down every year due to high demand for solar panels and inverters in the world. Currently the price per watt is Rs. 65/- for below 100 KW systems, and Rs. 60/- for above 100 KW systems, that is, Rs. 65,000 per KW for below 100 KW systems and Rs. 60,000 per KW for above 100 KW systems.
Industries can take advantage of Depreciation or Accelerated Depreciation as per Indian IT Act. There are no subsidies for industrial sector due to depreciation factor.