Commercial solar ROI calculator
Payback for a shop, showroom, hotel or small factory, with or without the depreciation benefit counted.
Your details
The average across your last three months.
On your bill. Your DISCOM will not approve a system above this.
Indicative only, and not tax advice.
Under s.115BAA you cannot claim additional depreciation.
Your estimate
Payback on the investmentEstimated
2.0 – 2.9 years
Including the depreciation benefit. Beyond this the generation is effectively free for the remaining asset life.
- System size
- 38.0 kW
- Monthly saving
- ₹46,740 – ₹50,000
- Annual saving
- ₹5.6L – ₹6L
- System cost
- ₹15.2L – ₹19L
- Two-year tax benefit
- ₹2.8L – ₹4L
- Effective cost
- ₹11.2L – ₹16.2L
Bound by consumption.
At an effective Rs 10.00 per unit displaced.
Before any tariff increase.
There is no PM Surya Ghar subsidy on a commercial connection.
Indicative depreciation benefit, not tax advice.
System cost less the depreciation benefit.
The tax figure is indicative only.
This is an indicative estimate of a depreciation benefit, not tax advice. The actual benefit depends on your tax regime, your profitability in the year of installation, the date the asset is put to use, and other deductions you claim. Confirm the figure with your chartered accountant before you rely on it.
This is an estimate, not a quote.
This is an estimated range based on average conditions in your area. Your actual numbers depend on site-specific factors we verify before quoting.
Rates last verified 2026-08-06
Get the number we stand behind
Origian Power stands behind the number our engineer gives you after a free site visit — not the number above.
- Your commercial tariff and any demand charges on the account
- Sanctioned load as recorded by the DISCOM
- Roof structure, and whether it carries the array without strengthening
Why the commercial case is not the domestic one
A commercial rooftop is a capital investment appraised against a tariff, not a household purchase appraised against a bill. Two things move the numbers away from the residential case: there is no PM Surya Ghar subsidy, and the asset can be depreciated.
The depreciation figure here is indicative and is not tax advice. It depends on your regime, your profitability and your commissioning date, and your accountant is the only person who can confirm it. The solar accelerated depreciation calculator breaks that half down on its own, and the capacity calculator shows what your connection actually permits.
Questions about this estimate
Is there a subsidy for commercial solar?
Not under PM Surya Ghar, which is residential only. The commercial return comes from two other places: you displace a commercial tariff, which is usually higher than a domestic one, and you can depreciate the asset. That is why commercial payback can be shorter than a household’s despite there being no subsidy.
Should I include the depreciation benefit in the payback?
It depends who is reading the number. Including it shows the true cash position for a profitable business that can absorb the deduction. Excluding it shows the energy case alone, which is the safer figure if the tax position is uncertain. The toggle exists so you can see both.
What limits the size of a commercial system?
Usually the sanctioned load rather than the roof. Your DISCOM will not approve a rooftop system above your sanctioned demand, so a business with a large roof and a modest connection is capped by paperwork rather than by space.
Do demand charges change the case?
They can. Solar reduces the energy component of a commercial bill but does not by itself reduce contracted demand, so a bill dominated by demand charges saves proportionally less. A site survey establishes that before we quote.
Which panel and inverter brands does Origian use for commercial systems?
The same brands as our residential installations, sized and specified for the load: Renewsys, Adani, Waaree or Tata for panels, and Growatt, Solis or Goodwe for inverters. Product, performance and workmanship terms are the same warranty structure described on our warranty page — commercial systems do not run on a separate, lesser tier.
Ready to find out what solar would do for your bill?
Book a free site survey. We assess your roof, your consumption and your connection, then tell you what is actually worth installing.