Commercial rooftop solar in Cuddalore and Puducherry
For shops, clinics, schools, hotels, mills and small factories. Use the sun for the power you already use in the daytime, and cut your commercial EB bill for the next 25 years.
Free site survey for your business
Roof check, load study and a written proposal.
- Daytime power, daytime savings
Businesses use most of their power when the sun is up, so more solar units are used directly.
- 40% accelerated depreciation
A tax-paying business can depreciate the plant at 40% a year. Confirm with your auditor.
- Payback often 3-5 years
For businesses with strong daytime use. Panels are rated for 25 years.
Official partner of TATA Power Solar and Exide · Registered PM Surya Ghar vendor
Who we install for
Businesses across Cuddalore district and Puducherry that use power in the daytime. Typical sizes below; your size comes from your bills.
What it costs (2026)
Market ranges for on-grid commercial systems, not our quote. Bigger systems cost less per kW.
| System | Cost per kW | Approx. total |
|---|---|---|
| 20 kW | ₹48,000 - ₹55,000 | ₹9.6 - 11 lakh |
| 50 kW | ₹44,000 - ₹50,000 | ₹22 - 25 lakh |
| 100 kW | ₹40,000 - ₹46,000 | ₹40 - 46 lakh |
Smaller shop systems (5-15 kW) are quoted after the survey. Full breakdown: rooftop solar for industries in Tamil Nadu.
No subsidy, but a tax benefit
PM Surya Ghar is only for homes and apartments. A tax-paying business can instead claim 40% accelerated depreciation: on a ₹20 lakh plant, the first-year depreciation is about ₹8 lakh, which lowers taxable profit.
See the worked exampleMetering and settlement rules for business connections are set by TNERC and can change. We check the current order for your tariff before we design.
Why businesses choose Surya's Solar
We study 12 months of EB bills and your working hours, not a rule of thumb.
Hot-dip galvanized structures and stainless fasteners for salt air near SIPCOT and the coast.
Proper earthing, lightning protection and DC/AC protection on every system.
We handle approvals, meter changes and inspection for Tamil Nadu and Puducherry.
Official partner of TATA Power Solar and Exide, with ALMM-listed panels.
Office in Kondur, Cuddalore, close by for cleaning and service.
How a business project works
Clear steps, one team, written proposal before you decide.
- 1
Share your EB bills
Last 12 months and your sanctioned load.
- 2
Free site survey
Roof, shade, space, cable route and load.
- 3
Written proposal
Size, layout, cost and expected payback.
- 4
Approval and install
TNPDCL or PED approval, then installation.
Commissioning
Inspection, metering and handover with service support.
Commercial solar FAQs
Is there a government subsidy for commercial solar?
No. The PM Surya Ghar subsidy is only for homes and apartment common areas. Businesses instead benefit from 40% accelerated depreciation (for tax-paying businesses), lower power bills and a short payback.
How much does commercial rooftop solar cost in Tamil Nadu?
As a market range in 2026, about ₹48,000-55,000 per kW for a 20 kW system, falling to about ₹40,000-46,000 per kW at 100 kW. Your exact price comes in a written proposal after a free site survey.
How much roof space does a business need?
Roughly 80-100 sq ft of shadow-free roof per kW. A 20 kW system needs about 1,600-2,000 sq ft. Metal sheet and RCC roofs both work.
Can solar be installed on a metal sheet roof?
Yes. Panels are fixed on rails clamped to the sheet seams or purlins. We check the age and strength of the sheets first.
How long does a commercial installation take?
A small commercial system is installed in a few days; larger systems take one to a few weeks, plus the time for TNPDCL or PED approval and metering.
What do I need for the site survey?
Your last 12 months of EB bills, the sanctioned load, and access to the roof. Our engineer does the rest.
Apartment associations get ₹18,000 per kW subsidy for common-area solar.