📋 Table of Contents
- Project Overview & Highlights
- Why a Metal-Sheet Roof Needs a Different Mounting Approach
- Inside the System — Inverter & Protection Setup
- Real Savings — What This Shakti Nagar Home Now Earns
- Installation Process — Start to Finish
- Why Thermosun Is the Best Solar Company in Delhi
- FAQs
Shakti Nagar is classic old North Delhi — tightly packed independent houses, shared walls, water tanks on every roof, and corrugated tin-sheet roofing instead of a flat RCC slab. It’s not the “ideal” rooftop you see in solar brochures. But it’s exactly the kind of roof Thermosun designs for every day as one of the top solar companies in Delhi.
On 11 August 2026, our team completed a 5kW on-grid residential solar installation at this Shakti Nagar home — engineered specifically for a metal roof, in a colony with neighbouring structures on all sides. This case study covers exactly how it was done, what it costs, and what the homeowner earns back every month.
Why a Metal-Sheet Roof Needs a Different Mounting Approach
Most solar quotes assume a flat concrete roof where a standard aluminium frame can simply be bolted or ballasted down. Corrugated metal roofs — common across Shakti Nagar, Kamla Nagar, and older North Delhi colonies — behave differently. Drilling in the wrong spot risks leaks, and the sheet itself can’t take the same load-bearing approach as concrete.
🏗️ How Thermosun Solved This
Our team used corrosion-resistant aluminium clamp-mounted structures that grip the metal sheet’s ridges directly — no unnecessary drilling, fully weatherproofed joints, and a tilt angle optimised for Delhi’s latitude even on a roof with limited open area. The result: a stable 5kW array that performs at full rated output despite tight surrounding structures.
Have a Metal Roof or a Tight Colony Rooftop?
Thermosun’s engineers design custom mounting for any roof type — concrete, metal sheet, or asbestos. Free site survey includes shadow analysis and structural planning.
Inside the System — Inverter & Protection Setup
The second photo from this project shows the electrical side of the installation: a DC isolator box, the on-grid solar inverter with digital display, and an AC distribution box housing MCBs for protection. Every wire is conduit-protected and properly earthed — details that matter far more than they’re given credit for.
| Component | Detail |
|---|---|
| Inverter | On-grid string inverter, digital display with generation monitoring |
| DC Side | Isolator box with danger-marked safety enclosure |
| AC Side | Distribution box with MCBs for circuit protection |
| Wiring | Fully conduit-protected DC & AC cable runs |
| Earthing | IS-standard earthing & lightning protection |
Real Savings — What This Shakti Nagar Home Now Earns
A 5kW system in Delhi’s sunlight conditions generates roughly 18–22 units per day, enough to cover a household consuming 500–600 units a month — cutting the electricity bill by 80–90%. Under the PM Surya Ghar Yojana subsidy, most homeowners recover their full investment in 4–5 years, after which electricity is effectively free for the remaining system life.
For a full solar panel cost breakdown by system size, see our detailed guide on 5kW Solar System Price in India. If your rooftop is smaller, compare with our 3kW Solar Panel Price in Delhi (with subsidy) blog.
Installation Process — Start to Finish
In Shakti Nagar or North Delhi? Get a Free Assessment.
Our engineers assess your roof — concrete or metal — and give you an exact cost and savings estimate, completely free.
Why Thermosun Is the Best Solar Company in Delhi
This Shakti Nagar project shows why experience matters in residential solar installation. A less experienced vendor might have quoted a standard flat-mount system unsuitable for a metal roof, risking leaks and poor panel performance. Thermosun’s site survey identified the constraint and engineered the right solution from day one — this is what the best solar company in Delhi actually does.
Delhi’s monsoon and dust also affect long-term output if panels aren’t maintained correctly — we cover this in detail in Do Solar Panels Work in Rain?, and the same solar panel maintenance practices apply here.
Whether you need solar installation near me for your home or a commercial solar solution for your business, our team at Thermosun Engineering — Best Solar EPC Company in Delhi handles everything from design to final commissioning.
Frequently Asked Questions
Can solar panels be installed on a metal/tin roof?
Yes. As shown in this Shakti Nagar project, we use corrosion-resistant clamp-mounted structures designed specifically for corrugated metal sheets — no unnecessary drilling and fully weatherproofed.
How much does a 5kW solar system cost in Delhi?
Costs vary by panel type and mounting complexity. With PM Surya Ghar Yojana subsidy, the effective cost drops significantly — see our detailed 5kW pricing guide for exact numbers.
How many units does a 5kW system generate per day in Delhi?
A well-installed 5kW system typically generates 18–22 units per day depending on season and shading conditions.
Who is the best solar company in Delhi for homes with non-standard roofs?
Thermosun Engineering & Power India Pvt. Ltd. is an MNRE-approved, BSES and TPDDL empanelled solar EPC company with proven experience on metal-roof and space-constrained installations across Delhi NCR.
Conclusion
The Shakti Nagar installation is a reminder that good solar design isn’t just about placing panels — it’s about engineering the right mounting solution for the roof that’s actually there. The clamp-mounted structure protected the metal roof while delivering a full 5kW output, and the properly protected electrical setup ensures the system runs safely for 25 years.
If you’re in Shakti Nagar, Kamla Nagar, Model Town, or anywhere in North Delhi and considering solar, the starting point is always a free site survey — whatever your roof type, we’ll assess it honestly and design around it.