Understand Solar System Warranties in India – Full Coverage Breakdown
Your solar system might be rated to last 25 years but what protects you if something fails in year 3 or 7?
A good warranty can save you tens of thousands of rupees, while a poor one can leave you stuck with service bills and unusable equipment. And in India, where service quality can vary across states, it’s essential to know:
- What’s covered
- For how long
- By whom
- And how to claim it
Let’s break down the solar warranty landscape in India so you know exactly what you’re getting.
1. Solar Panel Warranties: Two Types You Must Know
Product Warranty (10-15 Years)
- Covers physical and manufacturing defects:
- Broken glass (not impact-related)
- Delamination or water ingress
- Junction box failure
- Provided directly by the panel manufacturer
Performance Warranty (Usually 25 Years)
- Guarantees output won’t fall below:
- 90% in 10 years
- 80% in 25 years
- If your generation is much lower than expected despite clean panels and proper install this applies
Ask if your warranty is tiered (e.g. 90%/80%) or linear (steady 0.6-0.7% degradation per year)
2. Solar Inverter Warranties: Your Solar System’s Most Sensitive Component
- Most string inverters in India come with 5-10 year warranties
- Covers:
- Internal board failures
- Shutdowns due to overheating
- Display or app issues
- Surge-related faults (if SPD was installed)
Some brands require inverters to be installed by a certified technician and kept in dry, ventilated areas to remain valid
3. Solar Mounting Structure Warranty: Often Overlooked
- Good vendors offer 5-15 year warranties on aluminum or GI frames
- What’s covered:
- Frame rust or corrosion
- Structural deformation due to heat or rain
- Loose joints (from poor fasteners)
If you live in a coastal or high-humidity area (like Goa, Kochi, or parts of Gujarat), ask if your system has salt spray resistance.
4. Solar Installation Warranty: Workmanship Protection
- This warranty is provided by the installer, not the product manufacturer
- Usually covers 1-5 years
- Protects you from:
- Faulty wiring
- Loose conduit or cracked junction boxes
- Poor earthing or missing SPD
- Mounting structure issues due to improper fastening
If your system stops working within the first year, it’s often a workmanship issue not a panel fault
5. Monitoring App Support (Optional but Useful)
- Some inverters offer a 1-2 year limited software warranty
- Covers:
- Loss of app connectivity due to server issues
- Firmware updates or access problems
- Not covered:
- Wi-Fi issues at your end
- Router changes or network drops
6. What’s Usually Not Covered in Solar Warranty
| Not Covered | Why |
|---|---|
| Monkey or rodent damage | Consider adding a metal mesh or conduit guard |
| Flooding or fire | Get a home insurance rider or specific solar cover |
| Cracked panels from falling objects | Treated as accidental damage, not warranty |
| DIY wiring changes | Immediately voids inverter and workmanship warranty |
| Poor maintenance (e.g. no cleaning) | Performance warranty may be denied |
7. How to Claim a Solar Warranty in India
What You’ll Need:
- Your system invoice
- Serial numbers of affected component(s)
- Photos of damage or app screenshots
- Copy of warranty certificate (or warranty card)
Whom to Contact:
- Panel/inverter manufacturer for product warranty
- Your installer for installation and mounting issues
- Most brands offer email or helpline-based claim filing
Some brands may send an engineer or ask for the installer to validate the claim
8. Protect Your Solar System Warranty
- Save and organize:
- Invoices
- Panel and inverter serial numbers
- Mounting photos
- Register your warranty (if required) on the manufacturer’s website
- Don’t allow non-certified electricians to “fix” wiring or inverters
- Ask the installer to label all key parts (junction box, SPD, inverter) this helps during support calls
9. Ask These Important Questions Before Finalizing Installation
- Who provides the warranty you or the product brand?
- Are replacements free, or is there a service charge?
- Is service available in my district or city?
- How long does a typical warranty claim take to resolve?
- Is the warranty automatically registered or do I have to fill a form?
10. Solar System Warranty Summary
| Component | Warranty Duration | Covers |
|---|---|---|
| Solar Panels | 10-15 years (product) | Manufacturing defects |
| 25 years (performance) | Output degradation | |
| Inverter | 5-10 years | Internal faults, shutdowns, surge issues |
| Mounting Structure | 5-15 years | Rust, loosening, structural integrity |
| Installation Work | 1-5 years | Wiring, mount alignment, poor SPD/earthing |
| App/Monitoring | 1-2 years (limited) | Login/app connectivity issues |
A well-installed solar system with strong warranties ensures that you:
- Don’t lose money due to unexpected faults
- Have support when things go wrong
- Keep your system running smoothly for 25+ years
Ask questions, get written documents, and stay informed; solar is a long-term investment, not just a one-time purchase.
