MNRE Solar Module Warranty SOP Explained: The Complete Guide Every Consumer, EPC Company & Solar Manufacturer Must Read

Is Your Solar Panel Really Covered for 25 Years?

"Sir, the solar panel comes with a 25-year warranty, so if anything goes wrong, the manufacturer will replace it, right?"

This is perhaps the biggest misconception in India's rooftop solar market.

A 25-year warranty is not an unconditional promise. Like any other product warranty, it comes with specific terms, technical requirements, documentation, and exclusions.

Unfortunately, many consumers discover this only when they try to file a warranty claim—and find that the claim has been rejected due to missing documents, improper installation, unauthorized modifications, or other avoidable reasons.

Recognizing these challenges, the Ministry of New and Renewable Energy (MNRE) has introduced a Standard Operating Procedure (SOP) for Solar Module Warranty Management. The objective is simple: create a transparent, standardized, and accountable warranty process for all stakeholders in India's solar ecosystem.

This SOP is more than just another government document. It is a roadmap that every homeowner, EPC company, installer, distributor, and solar module manufacturer should understand before installing or supplying a solar system.

Why Was This SOP Needed?

India has witnessed tremendous growth in rooftop solar installations, especially under schemes such as PM Surya Ghar: Muft Bijli Yojana. Millions of homeowners are investing significant amounts in rooftop solar systems with the expectation that they will generate electricity reliably for decades.

However, warranty-related disputes have become increasingly common because:

• Consumers often do not know what their warranty actually covers.

• EPC companies may fail to maintain proper installation records.

• Module manufacturers receive incomplete warranty claims.

• There was no standardized warranty management process across the industry.

The new SOP aims to eliminate this confusion by clearly defining the responsibilities of each stakeholder.

What Does the MNRE SOP Cover?

The SOP establishes a standardized framework for:

• Solar module warranty registration

• Documentation requirements

• Warranty claim procedures

• Inspection process

• Technical evaluation

• Responsibilities of manufacturers

• Responsibilities of EPC companies

• Consumer awareness

• Claim timelines

• Conditions where warranty may be accepted or rejected

Ultimately, the SOP seeks to make warranty management more transparent and predictable.

Understanding the Two Types of Solar Module Warranty

One of the biggest misunderstandings among consumers is believing that there is only one warranty.

In reality, solar modules generally come with two separate warranties.

1. Product Warranty

This covers manufacturing defects such as:

• Material defects

• Manufacturing defects

• Workmanship issues

• Delamination

• Junction box failures (where covered)

• Defective connectors

• Manufacturing-related failures

If the module fails because of a manufacturing issue, the manufacturer is responsible as per the warranty terms.

2. Performance Warranty

Solar modules naturally degrade over time.

A performance warranty assures that the module will continue producing electricity within the guaranteed performance levels throughout the warranty period, typically 25 years.

If the module's performance falls below the guaranteed level under the applicable warranty conditions, it may qualify for a warranty claim.

The Biggest Myth About Solar Warranty

Many people believe:

"If the panel stops working anytime within 25 years, the company must replace it."

That is not how warranties work.

The manufacturer will first determine:

• Why did the module fail?

• Was it a manufacturing defect?

• Was the module installed correctly?

• Has the module been modified?

• Were operating conditions within specifications?

• Is complete documentation available?

Only after technical verification can a warranty claim be approved.

Documents Every Consumer Must Preserve

One missing document can significantly delay—or even jeopardize—a warranty claim.

Consumers should safely preserve:

• Original purchase invoice

• Warranty certificate

• Installation report

• Commissioning report

• Module serial numbers

• Module photographs

• System photographs

• DCR/B2C certificate (where applicable)

• User manual

• EPC handover documents

It is advisable to keep both digital and physical copies of these records.

Responsibilities of EPC Companies

The SOP places considerable responsibility on EPC companies because installation quality directly affects warranty eligibility.

Every EPC company should ensure:

Proper Installation

Installation should comply with applicable BIS, IEC, and manufacturer guidelines.

Accurate Documentation

Maintain records including:

• Module serial numbers

• Installation photographs

• Commissioning reports

• Electrical test reports

• Customer handover documents

Customer Awareness

Consumers should clearly understand:

• Warranty coverage

• Warranty exclusions

• Claim procedure

• Required documents

• Contact information

Complete Traceability

Every installed module should be traceable through its serial number.

What Can Lead to Warranty Rejection?

This is perhaps the most important section for both consumers and installers.

Manufacturers may deny warranty claims under several circumstances specified in the SOP and warranty terms.

These commonly include:

Improper Installation

Incorrect mounting practices, poor workmanship, or installation that does not follow manufacturer guidelines.

Unauthorized Modification

Any alteration, repair, drilling, rewiring, or modification not approved by the manufacturer.

Physical Damage

Damage caused by:

• Mishandling

• Transportation

• Falling objects

• External impact

• Glass breakage caused by external force

Electrical Faults

Damage due to:

• Incorrect system voltage

• Reverse polarity

• Improper grounding

• Power surges

• Electrical faults external to the module

Tampered Serial Numbers

If the serial number or identification label has been removed, altered, or damaged, warranty verification may become impossible.

Operation Beyond Design Limits

Modules operated outside specified environmental or electrical conditions may lose warranty coverage.

Improper Maintenance

Neglecting recommended maintenance practices where required under warranty conditions.

Does Every Natural Disaster Cancel the Warranty?

Not necessarily.

The SOP also recognizes force majeure events such as:

• Floods

• Earthquakes

• Cyclones

• Lightning

• Other exceptional natural events

However, the applicability of warranty in such cases depends on the manufacturer's warranty terms and the nature of the damage.

This is one of the reasons why solar insurance can be an important complement to the manufacturer's warranty, as warranties and insurance cover different types of risks.

How to File a Solar Module Warranty Claim

If you suspect that your module has developed a manufacturing defect, follow a structured approach.

Step 1

Inform your EPC company or installer immediately.

Step 2

Contact the module manufacturer or their authorized service channel.

Step 3

Provide:

• Invoice

• Warranty certificate

• Module serial numbers

• Photos

• Videos (if applicable)

• Installation details

Step 4

Allow technical inspection if requested.

Step 5

Obtain a complaint reference number and keep records of all communications.

Step 6

Cooperate during testing and root cause analysis until the claim is resolved.

Best Practices to Ensure Your Warranty Remains Valid

For Consumers

✔ Choose an experienced EPC company rather than simply the lowest bidder.

✔ Verify module brand and authenticity.

✔ Record module serial numbers before installation.

✔ Keep all project documents.

✔ Avoid unauthorized repairs.

✔ Report defects promptly.

✔ Carry out periodic maintenance.

For EPC Companies

✔ Follow manufacturer installation manuals.

✔ Maintain installation quality.

✔ Record module serial numbers.

✔ Provide complete documentation to customers.

✔ Explain warranty conditions during project handover.

✔ Respond promptly to customer complaints.

✔ Assist customers throughout the warranty process.

Why This SOP Is a Positive Step for the Solar Industry

The new SOP benefits everyone.

Consumers

• Better transparency

• Clearer claim process

• Better protection

• Defined responsibilities

EPC Companies

• Standardized documentation

• Reduced disputes

• Higher customer confidence

• Professional project execution

Manufacturers

• Better traceability

• Improved claim verification

• Reduced fraudulent claims

• Faster dispute resolution

• 
  

A Warranty Is Only as Strong as the Installation Behind It

Consumers often spend weeks comparing panel efficiency, inverter brands, and prices—but very little time understanding the warranty that protects their investment for decades.

A professionally installed system with complete documentation is far more likely to enjoy a smooth warranty experience than a poorly documented project purchased solely on the basis of the lowest price.

The MNRE Solar Module Warranty SOP reinforces an important principle:

A 25-year warranty is not just about the panel. It is about proper installation, complete documentation, product traceability, and following the correct claim process.

For EPC companies, this SOP is an opportunity to build trust through better workmanship and customer support.

For consumers, it is a reminder that safeguarding a solar investment begins on the day of installation—not on the day a problem occurs.

As India's rooftop solar market continues to grow under initiatives such as PM Surya Ghar: Muft Bijli Yojana, awareness of warranty rights and responsibilities will be just as important as choosing the right solar modules.

Frequently Asked Questions (FAQs)

Is every solar panel covered by a 25-year warranty?

Most quality solar modules come with long-term performance warranties, but coverage is subject to the manufacturer's terms and the conditions outlined in the warranty documentation.

Can a manufacturer reject a warranty claim?

Yes. Claims may be rejected if there is evidence of improper installation, unauthorized modification, physical damage, tampering, or failure to meet warranty conditions.

What documents should I keep for a warranty claim?

Keep your purchase invoice, warranty certificate, installation and commissioning reports, module serial numbers, and photographs of the installed system.

Does choosing the cheapest installer affect my warranty?

It can. Poor installation or incomplete documentation may increase the risk of warranty disputes, making it important to select a qualified and experienced EPC company.

Author's Note: This article is intended to help consumers, EPC companies, and industry stakeholders better understand the practical implications of the MNRE Solar Module Warranty SOP. Readers should also refer to the official SOP and the specific warranty terms issued by their solar module manufacturer, as those documents govern individual warranty claims.