Free tool
Commercial and industrial payback model
The model behind our C&I savings pages: a 200 kW plant in Noida at ₹41,000 per kW with 75% debt paid back in five years, or your own numbers. It returns annual savings, EMI, payback and the internal rate of return over 25 years.
Figures verified on 16 Sept 2026. Every number links to its source on the sources page.
kW
₹ per unit
From your bill, including surcharges.
units per kW a year
Planning figure used on our 2023 savings pages.
₹ per kW
₹41,000 per kW was the figure on our 2023 model; confirm with a quote.
%
%
years
100 kW plant, Noida
- Project cost
- ₹41 lakh
- Annual generation
- 1,50,000 units
- Annual bill saving
- ₹11.25 lakh
- Annual EMI on ₹30.75 lakh debt
- ₹7.7 lakh
- Project payback
- 3.6 years
- Equity payback
- 2.9 years
- Project IRR (25 years)
- 26.7%
- Equity IRR
- 44.7%
Twenty-five-year life with 0.7% annual degradation, flat tariff, no O&M or tax modelled. Accelerated depreciation and GST input credit improve the numbers for a company; ask your accountant. Capacities above the sanctioned load may need a zero-export device where net metering is not available.
Questions people ask
Sources
- 1.Savings from electricity bills through rooftop solar can be revenue for C&I consumers — Verde Solaire, 2 Jun 2023
- 2.Savings for commercial connection consumers of Noida by going solar — Verde Solaire, 4 May 2023
- 3.Savings for commercial connection consumers of Delhi by going solar — Verde Solaire, 4 May 2023
- 4.Case Study (Jama Corporation, Marwar Carpets) — Verde Solaire, 5 Mar 2023