50 kW solar system price in India (2026)
A 50 kW rooftop system for a shop, school or factory costs about ₹20.34 lakh with GST. It makes about 7,300 units a month, saves about ₹65,700 a month, and with 40% accelerated depreciation pays back in about 2.8 years.
50 kW price, line by line
| Solar panels | ₹9,02,700 |
| Inverter | ₹2,50,000 |
| Mounting structure | ₹1,50,000 |
| Cables, DCDB, ACDB, earthing | ₹2,00,000 |
| Installation labour | ₹1,25,000 |
| Net meter, DISCOM fees, transport | ₹40,000 |
| Installer's margin | ₹2,00,124 |
| GST 5% on 70% of the value on ₹13,07,477 | ₹65,374 |
| GST 18% on 30% of the value on ₹5,60,347 | ₹1,00,862 |
| Price with GST | ₹20,34,060 |
2026 market averages from the same engine as the EPCoffice app. Your installer's brands and state change them — type your own rates in the calculator.
Tax and depreciation
A business can write off 40% of a solar plant's value in the first year (accelerated depreciation). At the 25.17% company tax rate that lowers the tax bill early, which is why the payback here is shorter than the price ÷ saving. Over 25 years the plant saves about ₹2.69 crore, a return of about 35% a year.
Change the tax rate in the calculatorOther sizes
For a house, see 3 kW, 5 kW or 10 kW. All sizes on one page: solar prices, 1–100 kW.
Questions about 50 kW solar
How much does a 50 kW solar plant cost for a business?
About ₹20.34 lakh with GST in 2026 (₹40,681 per kW) for panels, inverter, structure, wiring, installation and the net meter. There is no central subsidy for businesses.
How many units does 50 kW make?
About 7,300 units a month at 4.8 units per kW a day (Jaipur).
What is the payback of a 50 kW plant?
About 2.8 years at ₹9 a unit, counting 40% accelerated depreciation at 25.17% tax.
How much roof does 50 kW need?
About 350 m² of shade-free roof, for 85 panels.