- To spot fake solar panels, check four things: the back label, the serial, the ALMM listing and the BIS mark.
- Every real module has a unique serial number and a QR / RFID you can scan.
- Match the exact model number to the live ALMM list — not just the brand name.
- The BIS R-number for IS 14286 should look up on the BIS site.
- ALMM lists models, not your box — a listed model can still be mislabelled, so check the real panel.
- ALMM dates, lists and DCR rules are point-in-time — verify against the current MNRE order, live ALMM list, NISE and BIS.
Learning how to spot fake solar panels is now a basic skill for any Indian EPC. A fake or mislabelled module can fail in a year, void your warranty, and knock your whole project out of a government or subsidy scheme. The good news: a few quick checks on the dock catch most of them.
This guide is for procurement staff and field installers at small and mid-size EPCs. It walks through each check in plain steps, gives you a printable red-flag table, and points you to the official lists. For the wider compliance picture, see our ALMM & DCR compliance hub.
What does a fake or mislabelled panel mean?
A fake or mislabelled panel is a module that is not what its label says it is. It might carry a brand it was never made by, a watt rating it cannot deliver, or a model number that does not exist. Sometimes the panel is real but swapped — a cheaper module sold under a premium label.
The common types you will meet
There are a few patterns. A relabelled panel has a fresh sticker over the real one. A cloned panel copies a known brand. A downgraded panel is a low-grade or B-stock cell dressed up as A-grade. And a paper fake passes a real module on paper but ships a different one on the truck.
Why this is more than a quality issue
A fake module is not just weak. It can break the rules of your scheme. Many government, subsidy and DCR projects need the module on the ALMM list and certified to IS 14286. If the panel is fake, none of that holds, and your claim can be rejected later.
Why does this matter so much for EPCs?
It matters because the cost of a fake module lands on you, not the seller. You install it, you warranty it, and you carry the risk when it fails or fails an audit. A cheap panel that saves a few rupees per watt can cost far more in callbacks and lost claims.
The three ways a fake panel hurts you
- Performance: the array makes less power than the design, so the customer complains.
- Warranty: the real maker will not honour a panel it never built, so you eat the replacement.
- Compliance: if the module is not truly ALMM-listed or BIS-certified, the subsidy or scheme claim can be pulled.
For DCR work the stakes are higher again. A panel can be genuine and still fail DCR if its cells are not domestic. That is a separate check on the NISE DCR portal, covered in our DCR certificate guide.
How do I check the nameplate first?
Start with the back label, also called the nameplate, because it is the fastest check. A real module shows the brand, the exact model number, the watt rating, the voltage and current figures, and a date or batch code. Missing or blurry print is your first warning.
What a good nameplate shows
Read the model number carefully and write it down — you will need it for the ALMM check. Compare the watt rating to the size of the panel. A small panel claiming a very high wattage is a red flag, because power tracks roughly with cell count and area.
Do the simple print test
Factory labels are clean and do not rub off. Rub a corner of the label gently with a dry thumb. If the ink smudges or the sticker lifts, the label may have been added later. A genuine nameplate is printed to last the life of the panel outdoors.
How do I check the serial number?
You check the serial number by reading the back label and scanning the QR or RFID code on the module. Every genuine module carries one unique serial. No two real modules from the same maker should ever share a serial number.
Scan, do not just read
Use a phone or scanner to read the QR or RFID. The scanned serial should match the printed one. If a pallet of modules all show the same serial, or the QR will not scan at all, stop and investigate. Repeated serials are one of the clearest signs of a relabelled batch.
When the serial is not in ALMM
Sometimes the serial reads fine but the system cannot find it. That is often a data or format problem, not always a fake. Our guide on a serial not found in ALMM walks through RFID and QR mismatches and how to fix them.
How do I match the panel to the ALMM list?
You match the panel to the ALMM list by opening the current MNRE ALMM list and finding the exact model number under the maker. The match must be exact — the brand alone is not enough. A maker can have some models listed and others not.
Match the model, not just the brand
Type or search the full model number from the nameplate. If the model is not on the live list, the panel may be ineligible for ALMM-bound projects, even if the brand is famous. Our step-by-step check the ALMM list guide shows exactly where to look.
Listed today, gone tomorrow
The ALMM list changes. Models are added and removed, and List-II for cells has its own timeline. The List-II cell mandate, expected around 1 June 2026, faced deferment and court proceedings, including before the Karnataka High Court. Do not treat it as settled — confirm whether it was deferred in the latest MNRE order, status as of 20 Jun 2026.
How do I check the BIS / IS 14286 mark?
You check the BIS mark by finding the registration (R-) number on the module and looking it up on the BIS site. Solar modules in India must be registered under IS 14286 through the BIS Compulsory Registration Scheme, also called CRS, under the Quality Control Order.
Look up the R-number
A real BIS mark carries an R-number tied to the model and maker. Search that number on the BIS CRS system. If the number is missing, will not look up, or points to a different model, the mark is not genuine. Our BIS certification guide covers IS 14286 and the QCO in detail.
BIS and ALMM are not the same
A module can be BIS-certified yet not ALMM-listed, or the other way around. They are separate checks. For a scheme module you usually need both. Do not assume one mark covers the other — verify each against its own live source.
What are the red flags to watch for?
The fastest way to spot fake solar panels is to scan for a short list of red flags. The table below pairs each red flag with what a genuine module looks like and how to check it on the dock.
Red-flag checklist by the SuryaHub team from MNRE ALMM and BIS / IS 14286 rules. Verify against the current MNRE order, live ALMM list, NISE and BIS.
The five-step receiving-dock check
Build the same checks into how you receive every batch. Run these five steps on a sample from each pallet before you sign for the delivery.
Photograph the back label and serial of each pallet sample
Gives you a record before any module leaves the dock
Scan the QR / RFID and read the serial
Confirms the module carries a real, unique ID
Match the model to the live ALMM list
Proves the module is eligible for the scheme
Look up the BIS R-number for the model
Confirms IS 14286 / CRS certification is real
Keep the datasheet, invoice and certificate together
Builds the paper trail you need for the claim
Are there quick field tests I can run?
Yes — a few low-cost field tests add confidence beyond the labels. None of them replaces lab testing, but together they catch obvious fakes before install. Use them as a second layer, not a substitute for the ALMM and BIS checks.
Simple checks on site
- Open-circuit voltage: measure Voc with a meter in sun and compare it to the datasheet. A big gap is a warning.
- Weight and build: a genuine module feels solid; very light or flimsy frames suggest cut corners.
- Glass and busbars: look for even cells, clean busbars and no bubbles or burn marks under the glass.
- Junction box: a real box is sealed and branded; a loose or unbranded box is a red flag.
When to send a panel for testing
If two or more checks fail, pull the batch and send a sample to an accredited lab. The cost of one test is small next to a roof full of weak modules. Keep the suspect panel, its label photos and the invoice together as evidence.
What should I do if I suspect a fake?
If you suspect a fake, stop the install and quarantine the batch before any module goes up. Do not mix suspect panels with good stock. A clear, early hold is far cheaper than pulling modules off a finished roof.
Build the paper trail
Photograph the back label, serial and QR of the suspect modules. Save the invoice, the datasheet and any certificate. Note the ALMM and BIS results you found. This record protects you if you need to return the batch or defend a claim later.
Raise it with the maker and seller
Contact the named manufacturer with the serial numbers. A genuine maker can confirm whether the serials are theirs. If the serials are not recognised, you have strong grounds to reject the batch and report the seller.
How does SuryaHub help you catch fakes?
SuryaHub keeps the serial, model, ALMM match, BIS number and certificate for every module on your bill of materials in one place, so a mismatch shows up before the panel goes on a roof. Instead of loose photos and a spreadsheet, your procurement and inventory records live in one procurement and inventory module, tied to each project. SuryaHub is pre-revenue; the only real pilots are Suryantra Energy and RGESPL, and the AI matching that flags mismatches is on the roadmap, not a live promise.
Catch a mismatch before the roof
See how SuryaHub maps serials, ALMM and BIS to your BOM.
Related guides
Frequently asked questions
How can I tell if a solar panel is fake?+
You can tell a solar panel is fake by checking its back label, serial number, BIS mark and ALMM listing. A genuine module shows a clear brand, a unique serial, a real BIS registration number, and an exact model match on the live ALMM list. If any of these is missing or does not match, treat the panel as suspect.
What is the ALMM list and why does it matter?+
The ALMM list is the Approved List of Models and Manufacturers that MNRE keeps for solar modules. A module must appear on the ALMM list, by its exact model number, to be used in many government and subsidy projects. If your model is not on the live ALMM list, the panel may be ineligible, so always match the model carefully.
How do I check a solar panel serial number?+
You check a solar panel serial number by reading the back label and scanning the QR or RFID code on the module. Every genuine module carries a unique serial number. If two modules share a serial, or the serial does not match the maker records, the serial number is a red flag and the module needs a closer look.
What is the BIS mark on a solar panel?+
The BIS mark on a solar panel shows the module is registered under IS 14286 through the BIS Compulsory Registration Scheme. The mark carries a registration (R-) number you can look up on the BIS website. If the BIS number is missing, fake, or does not match the model, the BIS mark is not genuine.
Can a panel be on ALMM and still be mislabelled?+
Yes. A model can sit on the ALMM list while the physical panel in your hand is mislabelled or swapped. ALMM lists models, not the box on your dock. Always match the serial and the back label of the real module to the maker records, not just the model name, before you accept the panel.
Does a DCR project need extra checks?+
Yes. A DCR project needs the module to use domestic content cells, confirmed through the NISE DCR portal, on top of the normal ALMM and BIS checks. A panel can be genuine and ALMM-listed yet still fail DCR if its cells are not domestic. For DCR work, verify the DCR certificate and the cells, not just the module.
How does SuryaHub help spot fake solar panels?+
SuryaHub keeps the serial, model, ALMM match, BIS number and certificate for every module on your bill of materials in one place, so a mismatch shows up before the panel goes on a roof. SuryaHub is pre-revenue; the only real pilots are Suryantra Energy and RGESPL, and AI matching is on the roadmap.
Sources & references
The serial, ALMM, BIS and DCR rules here come from primary government sources. ALMM lists, List-II dates, capacities and DCR rules are point-in-time and litigated — always verify against the current MNRE order, live ALMM list, NISE and BIS before you act.
- Ministry of New & Renewable Energy (MNRE) ↗
ALMM orders, the live ALMM list and the model-mark requirement.
- Bureau of Indian Standards (BIS) ↗
IS 14286, the CRS scheme and the solar module Quality Control Order.
- NISE DCR portal (National Institute of Solar Energy) ↗
Domestic content cells and the DCR module check.
Written by the SuryaHub team · reviewed against MNRE, NISE & BIS sources · updated 20 June 2026.
Method: Checks are drawn from the MNRE ALMM orders, BIS IS 14286 / CRS rules and the NISE DCR portal, and re-checked every 30 days. ALMM lists, List-II dates and DCR slabs are point-in-time and litigated — verify against the current MNRE order, live ALMM list, NISE and BIS. SuryaHub is pre-revenue; only Suryantra Energy and RGESPL are real pilots.
Change log: 20 Jun 2026 — first published.