Short answer
A solar panel certificate shows that a panel was tested to a standard such as IEC 61215 in an independent laboratory; IEC 61730 covers electrical and fire safety. A certificate is not a lifetime or performance warranty. When choosing panels in Antalya, verify the document's model match, laboratory, date and factory scope, and assess the warranty separately.
Key takeaways
- IEC 61215 examines design qualification and IEC 61730 examines electrical and fire safety.
- A certificate is not a warranty: in the sample panel, a 15-year product and a 30-year performance warranty are stated separately (TommaTech datasheet).
- For an unlicensed facility, the panel, inverter and battery must have been manufactured within the last five years (Official Gazette 02.04.2026, Art. 37/6).
- On the coast IEC 61701 (salt mist), and in greenhouses and barns IEC 62716 (ammonia), can be meaningful.
- The model code, laboratory, date and factory scope on the document must match the panel you will receive.
A solar panel certificate is a document showing that a panel has been tested to a specific standard in an independent laboratory. Leading the list are IEC 61215, which measures design qualification, and IEC 61730, which examines electrical and fire safety. A certificate is not a performance or lifetime guarantee; it only documents that the panel passed certain tests. When choosing panels in Antalya, you need to read the certificate together with the warranty and the datasheet.
Why are solar panel certificates important?
A panel works for years on the roof, in heat, humidity, UV and under wind load. You cannot see at the moment of purchase whether it will withstand these conditions. Certificates are independent evidence that the panel passed accelerated tests in a laboratory. Of course these tests do not mirror every field condition one to one; but the difference between an untested product and a tested one is large.
Regulation also values quality indirectly. Under the Unlicensed Electricity Generation Regulation, main equipment such as panels, inverters and batteries must have been manufactured within the last five years (Art. 37/6, Official Gazette 02.04.2026). In other words, the production date and the product identification label must also be documented. Remember that rules can change; confirm the current situation with the grid operator.
A solar panel certificate also clarifies the responsibility of the document holder. When a problem arises, which standard the panel was tested to and under what conditions it should be used are discussed using the certificate report. For this reason, you should see the document not merely as a sheet of paper attached to the quotation file but as the product's identity card.
Solar panel certificates and standards: IEC 61215, IEC 61730 and others
Panel documents are not a single "quality certificate"; each answers a different question. The table below summarizes the most common ones. The current editions of standards may change; when evaluating a document, also check the edition information.
| Document or standard | What it shows | What it does not show |
|---|---|---|
| IEC 61215 | The panel's design qualification; that it passed tests such as thermal cycling, damp heat, UV, mechanical load and hail | Does not guarantee the panel will last 25-30 years |
| IEC 61730 | Electrical and fire safety requirements | Does not show quality continuity on the production line |
| IEC 61701 | Resistance to salt mist (coastal) corrosion | Does not cover all coastal conditions |
| IEC 62716 | Resistance to an ammonia environment (barns, greenhouses) | Does not cover every chemical environment |
| IEC TS 62804 | Resistance to potential-induced degradation (PID) | Does not cover other types of degradation |
| ISO 9001 | That the manufacturer has a quality management system | Does not show the performance of a specific product |
| CE marking | That the manufacturer declares the product compliant with EU legislation | Is not a commitment on efficiency or lifetime |
| TSE certificate | That the product is certified to the relevant Turkish standard (TS EN) | Its scope must be checked separately on the document |
IEC 61215: design qualification and type approval
This standard defines preliminary tests for the long-term outdoor performance of crystalline silicon panels. The thermal cycling test measures whether the panel withstands rapid hot-cold changes. The damp heat test involves holding the panel at high temperature and humidity for a long period. In the mechanical load test, pressures similar to wind and snow load are applied to the panel; the hail test simulates the impact of ice balls. The bypass diode test is also on the list. The fact that manufacturers' datasheets state values such as 2400 Pa for wind and 5400 Pa for snow is related to this mechanical load class; the datasheet of the TommaTech TT605-144TN10 panel also states these values.
IEC 61730: safety
This standard examines whether the panel is safe in terms of electric shock, fire and mechanical hazard. Compliance with the installation manual matters here as well. According to the datasheet, the panel must be mounted over a fire-resistant surface with sufficient ventilation behind it; installation contrary to the manual voids the warranty. A certificate means a safe panel; it does not make up for an unsafe installation.
Which tests matter more in Antalya conditions?
In Antalya the average maximum temperature in July is 34.2 °C, and according to calculation the panel cell temperature can rise to about 65 °C (MGM, the Turkish State Meteorological Service, data and a NOCT-based calculation). For this reason thermal cycling and temperature coefficient matter. The TommaTech panel's operating temperature is between -40 and +85 °C, and its Pmax coefficient is -0.30 %/°C. Hail and storm events are recorded in the western districts of Antalya (Kumluca, Finike, Demre); in these areas it makes sense to ask about the hail test result and the frame-and-glass construction. Giving a numerical "hail risk" would not be right, however, because MGM's province-level hail frequency statistics have not been verified.
On coastal villa and hotel roofs, it is appropriate to look at the IEC 61701 result for salt mist corrosion. On the roofs of greenhouses and livestock facilities, ammonia resistance (IEC 62716) becomes meaningful. Of course not every project needs every document; they are chosen according to the environment. On a residential roof, verifying the basic document set (IEC 61215 and IEC 61730) often provides a sufficient starting framework; additional documents are added according to the environment. When deciding, you can ask your company to explain which risk each document is requested for.
That a product design passed testing does not mean every single panel leaves the factory with the same quality. That is why reliable manufacturers apply quality control on the production line in addition to type tests, and show this with management system certificates such as ISO 9001. Even so, this certificate describes the manufacturer's processes rather than the panel itself. When looking for a solar panel certificate, it is right to ask about these two layers separately: the product test and the manufacturer's system.
Do not confuse the certificate with the warranty
A certificate says the panel was tested; a warranty says how long the manufacturer takes responsibility. They are different documents. For example, for the TommaTech TT605-144TN10 the datasheet states a 15-year product warranty and a 30-year performance warranty; linear performance declines from 99% in year 1 to 87.4% in year 30. On the double-glass (G2G) bifacial model the product warranty is 25 years. In other words, the phrase "30-year performance" does not mean a product warranty; we explained the distinction in the article on solar panel warranty terms. The product warranty and the performance warranty are separate matters. For panel life and degradation, you can also see the article on solar panel lifespan and value loss.
Solar Nexo's website states that the panel manufacturer offers a linear performance warranty of up to 30 years. It is best to confirm this statement together with the datasheet and the warranty document of the panel you choose.
Could a certificate be fake or incomplete? How is it verified?
Not every document presented as a certificate on the market is of equal value. When evaluating a document, the following points should be checked.
- Model match: The model code on the document must be exactly the same as the full model code of the panel you will buy.
- Test laboratory: The body that issued the report should be stated; it can be confirmed with the issuing body.
- Date and edition: The edition of the document and of the standard should be current.
- Factory scope: The document may cover a specific factory and product series; check that it matches the factory where the panel is made.
- Datasheet consistency: The efficiency, power tolerance and temperature coefficient in the datasheet should not contradict the documents.
You should learn which certificates a specific panel holds not from this article but from the manufacturer's current datasheet and certificate reports. We do not claim a document list for any brand.
What should you ask for when choosing panels from Solar Nexo?
Whichever company you work with, at the quotation stage ask for the panel's brand and model code, its datasheet, its warranty document and copies of the certificate reports. This information also lets you compare the panel's efficiency and temperature coefficient. We covered the difference between TOPCon and other technologies in our article on what a TOPCon panel is, and panel efficiency in our article on solar panel efficiency. The Solar Nexo team makes recommendations at the survey by reviewing the product documents for the panel, inverter and battery together; you can request a free site survey from our contact page.
Conclusion
Solar panel certificates document that the panel passed standard tests; but they are not a guarantee for lifetime, performance or installation quality. IEC 61215 and IEC 61730 are the core documents; in coastal or agricultural environments, additional standards can be meaningful. Verifying the document for model match, laboratory, date and factory scope, and evaluating it separately from the warranty, is the right approach.
Frequently asked questions
What is a solar panel certificate?
A solar panel certificate is a document showing that a panel was tested to a specific standard in an independent laboratory. IEC 61215 covers design qualification, and IEC 61730 covers electrical and fire safety. A certificate is not a lifetime or efficiency guarantee; it documents that the panel passed tests. For this reason, the certificate should be read together with the product warranty, the performance warranty and the datasheet.
What is the difference between IEC 61215 and IEC 61730?
IEC 61215 is the design qualification standard that measures a panel's long-term outdoor durability through tests such as thermal cycling, damp heat, UV, mechanical load and hail. IEC 61730 examines the panel's safety in terms of electric shock, fire and mechanical hazard. The two complement each other; neither is considered sufficient alone. When choosing a panel, it is appropriate to request both standards' report numbers, model code and date in the quotation file.
Is a TSE certificate mandatory for solar panels?
There is no verified information on a mandatory requirement for this article, so we do not use a definitive statement. A TSE certificate shows that the product is certified to the relevant Turkish standard, but its scope must be checked on the document. On the question of whether it is required, the current legislation and the grid operator's application conditions should be confirmed. You can also ask your company for the document and read its scope together.
Are a certificate and a warranty the same thing?
No. A certificate says the panel was tested, while a warranty states how long the manufacturer takes responsibility. For example, for the TommaTech TT605-144TN10 the datasheet states a 15-year product and a 30-year performance warranty. A performance warranty differs from a product warranty and is often tied to a linear decline curve; the two should be read separately in the warranty document.
How do I know a panel certificate is genuine?
Check that the model code on the document matches the panel you will buy exactly, the name of the laboratory that issued the report, and the date and edition of the document. The document may cover a specific factory; check that it matches the production factory. If necessary, obtain written confirmation from the issuing body. Do not accept documents that are incomplete, illegible or contain only a logo; do not treat an unverifiable document as assurance.
Are extra documents needed for homes on the coast?
Because of the salt-air corrosion risk on the coast, it makes sense to look at the IEC 61701 salt mist test result. This document is not required in every project. The mounting structure and screw material should also be chosen to suit coastal conditions. The decision is made at the survey according to the environment and the panel's location; for roofs near the sea this question matters even more.
Why do panel tests matter in Antalya's heat?
In Antalya the average maximum temperature in July is 34.2 °C, and according to calculation the cell temperature can rise to about 65 °C. Thermal cycling tests and the temperature coefficient therefore matter. The Pmax coefficient on the TommaTech panel is -0.30 %/°C; that is, as the cell temperature rises above the 25 °C reference, power falls by about 0.30% for every degree.
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