Home / Solar for business

Lower your energy costs, for good.

For factories, offices, and commercial buildings, solar is one of the few investments that cuts a major cost and pays for itself in a few years. We deliver complete commercial solar, rooftop or open access, and maintain it for the long run.

Talk to our team → WhatsApp us

30–45%Lower energy costs

3–5 yrsTypical payback

25 yrsSystem life

Commercial rooftop solar on a building in Chennai

Why go solar

Energy is a cost you can control

For most businesses, electricity is one of the largest fixed monthly outflows, and it only rises. Solar lets you lock in a large share of that cost at today's rate, then watch the savings grow as grid tariffs climb.

✓ Cut energy bills by 30–45% from day one
✓ Accelerated depreciation tax benefit in early years
✓ Protect against future tariff hikes
✓ A visible, credible step toward sustainability goals

Large-scale commercial solar installation

The cost of waiting

Your bill climbs. Solar flattens it.

Grid tariffs rise year after year. Once your system pays for itself, your energy is essentially free. Here's how the two paths separate over a decade.

Staying on the grid

With YanSun solar

30–45%Bill cut from day one

3–5 yrsTypical payback

20+ yrsOf near-free power after

Illustrative comparison for a mid-sized commercial site, assuming grid tariffs rise around 5% a year. Your actual figures depend on tariff, roof size, and load, and we model them precisely in your proposal.

What we deliver

Complete commercial solar

From rooftop EPC to large open-access plants, plus the extras that round out a modern site.

Rooftop EPC

End-to-end design and build on your factory or office roof. We handle structure, panels, inverters, and TANGEDCO approvals.

Open access & group captive

Source solar power from off-site plants through the grid, ideal when your roof can't meet your full demand.

O&M services

Operations and maintenance to keep any plant, ours or someone else's, running at peak output for decades.

EV charging

Solar-powered EV charging stations for your premises, fleet, or customers. Clean power, lower running cost.

Solar LED lighting

Off-grid lighting for campuses, yards, and parking: no wiring, no electricity bill, automatic dusk-to-dawn.

Energy storage

Battery systems to store solar for peak hours or backup, reducing demand charges and downtime.

Proven at scale

We've done the hard projects

50+ MW commissioned across 350+ installations in eight states and union territories, including government projects in the Andaman and Lakshadweep Islands, Arunachal Pradesh, and the Northeast. Over twenty years of delivering and maintaining solar in conditions others avoid.

As an empanelled vendor with NTPC, BHEL, MNRE, REC Power, KREDL, ANERT, and the Greater Chennai Corporation, we meet the standards that institutional projects demand, and we bring that same rigour to your site.

See our work →

Large commercial rooftop solar array in Chennai

Good to know

Questions businesses ask

What's the payback period for commercial solar?

Typically 3–5 years, depending on your tariff, roof size, and how much of your load solar covers. Sites with higher commercial tariffs tend to pay back faster. After payback, the power is essentially free for 20+ more years.

What if my roof isn't big enough for my demand?

That's where open access and group captive come in: you source solar power from an off-site plant through the grid. We'll assess your demand and recommend the right mix of rooftop and off-site generation.

Do you handle the TANGEDCO and regulatory approvals?

Yes, end to end. We manage net metering, open-access applications, and the relevant TNERC/TANGEDCO paperwork as part of the project.

Can you maintain a plant we already have?

Absolutely. Our O&M services cover existing plants too: monitoring, cleaning, fault resolution, and performance optimisation to recover lost output.

Do we have to buy the system, or can we pay per unit?

Both models are available. Under CAPEX you own the plant and keep all the savings, with the strongest long-term return. Under OPEX, also called RESCO, we build and own the plant and you simply buy the solar power at a tariff below the grid, with no upfront cost. We'll recommend the model that fits your balance sheet.

Will installation disrupt our operations?

We plan around your working hours and roof access so day-to-day operations keep running. Most commercial rooftops are installed in phases with minimal interruption, and we coordinate the approvals in the background.

How do we know the plant performs as promised?

Every plant we build is monitored, so generation is tracked against the design estimate and any shortfall is flagged and resolved. Our O&M keeps output high over the plant's life, protecting the savings the project was built to deliver.