A zero-investment rooftop solar plant is the simplest way for a business to cut its power bill with solar. You don't buy anything or manage anything — Aran puts up the plant on your roof or land, runs it, and you just pay for the units it makes. This is also known as the OPEX or RESCO model.
Keep your money in your business, not on your roof
A rooftop solar plant makes clear sense on paper — until you see the price tag. Buying one locks a big amount into something that isn't your core business, hands your team the job of running and cleaning it, and puts the risk of it under-performing on you. Many good solar plans stall for exactly this reason.
Zero-investment solar removes that blocker. Your money stays in what you do best, and you still get cleaner, usually cheaper, power from your own site.
How zero-investment solar works
Instead of buying a plant, you host one — and buy only the power:
- Aran builds and pays for the solar plant at your site — on your rooftop or on open land.
- Aran owns, runs, cleans, monitors and insures the plant for the whole agreement.
- You use the solar power it makes and pay an agreed rate per unit — usually below your current grid rate.
- No investment, no maintenance headache, and savings from day one.
Illustrative default values — request a site-specific quotation.
Buying it yourself vs zero-investment — at a glance
Illustrative default values — request a site-specific quotation.
What Aran takes care of
Design & build
Full design, supply and installation of the plant at your site.
Running & upkeep
All operations and maintenance for the whole agreement — no in-house team needed.
Auto-cleaning
Aran's water-jet cleaning keeps the panels making full power, with water reused.
Monitoring
Round-the-clock tracking so power output stays on target.
Insurance
The plant is insured through the whole term — one less thing on your desk.
Performance
The deal is built on power delivered — Aran is paid on what the plant actually makes.
The tracker bonus — an even lower price per unit
Here's where Aran is different from a normal rooftop plant. Where the site allows, we use our solar tracker instead of a fixed mount. By turning the panels to follow the sun all day, the same space makes about 25% more power.
Why that helps you
More power from the same roof or land means more of your electricity comes from lower-cost solar — which can mean a lower price per unit over the agreement, without you spending a rupee more.
Want to see how a tracker beats a fixed mount? See our solar tracker page →
Illustrative default values — request a site-specific quotation.
Two ways to work with us — which suits you?
Zero-investment — you buy only the power
You own nothing and invest nothing. Aran builds and runs the plant at your site; you just pay per unit for the solar power. Best for businesses that want cheaper, greener power with no ownership and no hassle.
Ask about zero-investment solarOwn the plant, share the tracker gain
Building your own plant but worried about the extra tracker cost? Keep the fixed-plant result as your floor, let Aran fund the tracker part, and share the extra power it makes — you can't end up worse off than a fixed plant.
See the solar trackerIs your site a fit?
Zero-investment solar works best when there's enough space and steady daytime power use to make the plant worthwhile. You're a strong fit if:
- You have shade-free roof space — or open land — for a solar plant.
- You have a steady daytime power use or sanctioned load.
- You'd rather put your money into your business than into a power plant.
- You want a steady, usually lower, price per unit without any upkeep worries.
Not sure? Share your details below and our team will check your site at no cost.
Common questions
What is a zero-investment rooftop solar plant?
A zero-investment rooftop solar plant — also called the OPEX or RESCO model — is built at your own site and owned and run by Aran. You put in no money and pay only for the power it makes, usually less than your current electricity rate.
How is this different from buying a solar plant yourself?
If you buy the plant, you pay the full cost up front and handle all the upkeep and risk. With zero-investment solar, you own nothing and pay only for the power you use, while Aran covers the cost, upkeep, cleaning, monitoring, insurance and performance.
Who looks after the plant?
Aran does — design, install, run, clean, monitor and insure it for the whole agreement. You run your business; we run the plant.
What do I need to qualify?
Enough shade-free roof or open land, a fairly steady daytime power use, and a stable site. Our team checks your site and your bills to size the plant.
How does the solar tracker lower my price per unit?
Where the site allows, Aran uses a solar tracker that follows the sun and makes about 25% more power from the same space, which can mean a lower price per unit over the agreement. Figures are illustrative — please ask for a site-specific quote.
Does this work for rooftops and open land?
Yes. It works on factory, warehouse and building rooftops, and on open land at your site. Aran serves factories and businesses all over India.
Get a free zero-investment solar proposal
Tell us a little about your site and your power use — our team will check it and come back with a no-cost, illustrative proposal. No commitment.
Thanks — we've got your details and will get back to you soon.
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