Short answer
When choosing a solar company in Antalya, check 12 criteria: on-site survey, references at the same scale, an in-house field team, equipment brand and datasheet, the distinction between product and performance warranty, an itemised written quote, application know-how, installation safety and service support. Avoid companies that promise guaranteed savings or cannot show documents.
Key takeaways
- Compare companies not on price but on written quotes for the same capacity and the same equipment.
- Panel warranty has two parts: product warranty and performance warranty. For example, the TommaTech 605 W TOPCon model has a 15-year product and 30-year performance warranty.
- Under the 2026 regulation, panels, inverters and batteries must have been manufactured within the last five years; applications cannot be made with second-hand equipment.
- In Antalya, applications go through AEDAŞ's LUS portal; the company needs to know this process.
- Ask for the documentation and official conditions behind claims such as guaranteed savings, a zero bill or interest-free loans.
Choosing among solar companies in Antalya means looking at documents, references and post-installation support far more than at a price list. A solar energy system is an investment that will be used for 25-30 years, and a quote that looks cheap can turn out expensive through missing equipment or missing scope. The 12 criteria below are an impartial checklist you can apply whichever company you work with.
A 12-criteria checklist for solar companies in Antalya
- On-site survey and engineering calculation: A quote given over the phone is an estimate. The roof, shading, electrical panel and consumption should be examined on site.
- References at the same scale: A 5 kW home and a 1 MW roof are different jobs. Ask to see installations similar to yours.
- Own field team: Ask who does the mounting, the team's working standards and its occupational safety practices.
- Equipment brand and model: The quote should state the brand and model of panels, inverter, battery and mounting structure.
- Datasheets and certificates: Ask for the manufacturer's technical sheet; efficiency, temperature coefficient and warranty terms are written there.
- Warranty documents: Ask about product, performance and workmanship warranties separately.
- Written, itemised quote: Scope, exclusions, and the application and acceptance steps should be clear.
- Knowledge of the regulation: They should be able to explain AEDAŞ, the LUS portal, the connection approval letter (çağrı mektubu) and the acceptance steps.
- Sourced production estimate: The calculation should use a verifiable tool such as PVGIS; exaggerated kWh promises are a warning sign.
- Installation safety: Earthing, DC protection, cable and connector quality, fire safety.
- Service and maintenance: Who will come in the event of a fault, and how quickly, should be in writing.
- Monitoring and contract terms: Mobile monitoring, payment plan, delivery schedule and acceptance conditions should be in the contract.
The weight of the criteria varies by project. For a detached home, survey quality, equipment documentation and service come first; for a factory roof, engineering calculations, the field team's MW-scale experience, occupational safety and an uninterrupted production plan stand out. In agricultural irrigation, pump selection and flow calculation are decisive, and in off-grid systems battery sizing is. So weight the checklist according to your own project.
How do you compare quotes?
Because quotes come with different capacities and equipment, comparing the total amounts directly is misleading. First divide each quote by installed power (kWp) to get the cost per kWp; treat the battery as a separate item, because the battery changes the total considerably. Then match up which items are included: application and project approval procedures, mounting structure, cabling, earthing, the acceptance process and the monitoring system. Finally, put the equipment datasheet figures side by side: efficiency, temperature coefficient and warranty.
Pay particular attention to two points specific to Antalya. The first is summer heat: the average maximum temperature in July is 34.2 °C and panel cells get far hotter than that, which is why a panel's temperature coefficient matters. In the TommaTech 605 W TOPCon model the Pmax coefficient is −0.30 percent/°C. The second is the salty air in coastal areas; ask the manufacturer, with documentation, about the corrosion resistance of the mounting structure and fasteners.
Equipment and warranty: how do you read a datasheet?
The point most often confused in warranty statements is the difference between product warranty and performance warranty. The product warranty covers manufacturing defects; the performance warranty commits that the panel's output will not fall below a certain level over the years. For example, the TommaTech TT605-144TN10 (605 W, n-type TOPCon) datasheet gives a 15-year product and 30-year performance warranty; the performance curve goes from 99 percent in the first year to 87.4 percent in year 30. In the dual-glass model of the same series, the product warranty is 25 years. So general statements like "25-year warranty" are not enough; you need to read from the document which model gives which warranty.
A similar situation applies to inverters: for example, the standard warranty on TommaTech on-grid and hybrid inverters is 5 years from the invoice date. Battery warranties differ from brand to brand. For warranty details, see our article on panel warranty.
| Criterion | Document to request from the company | Why it matters |
|---|---|---|
| Equipment | Brand, model and datasheet | Efficiency and warranty terms are documented |
| Warranty | Manufacturer's warranty certificate | Product and performance warranty are separated |
| Quote | Itemised written quote | Comparison is made on the same scope |
| References | List of installations at a similar scale | Experience and work capacity become visible |
| Service | Support scope and contact channel | Expected response time and responsibility in a fault are clear |
How does knowledge of the regulation affect company choice?
In Antalya, the unlicensed generation application is made to AEDAŞ (the local electricity distribution company), and the LUS portal has been used since 1 October 2023. The 2026 amendment also introduced the condition that main equipment such as panels, inverters and batteries must have been manufactured within the last five years. A quote based on old stock or second-hand equipment can therefore cause problems at the application. Because systems operated before acceptance can be disconnected, it is essential that the company knows the acceptance process.
Net metering rules also vary by consumer type: monthly for residential subscriptions, and hourly from 1 May 2026 for non-residential ones. A company that can explain this difference is showing it sizes systems correctly. For the application and document list, see the guide on required documents.
Warning signs to avoid
- Guaranteed-savings promises such as "your bill goes to zero". Production depends on consumption and the tariff.
- Quotes that do not state brand and model.
- A firm quote given without a survey, only from a photo of a bill.
- Marketing phrases such as "interest-free solar loan". In the official framework, agricultural loans are limited to an interest discount tied to criteria, and the programme ends on 31 December 2026; ask for written proof of the conditions.
- Unwillingness to share a warranty certificate or datasheet.
How does Solar Nexo measure up against these criteria?
So that you can evaluate our own company, we share only verifiable information that we publish on our website. Solar Nexo is a company with an office at Barış Mah. Barış Manço Blv. No 49/A Kepez/Antalya. On its website it states a 27-person expert field team, more than 12 MW of installed capacity and 5 service regions. It works in on-grid, off-grid, hybrid, net-metered, agricultural irrigation and wind energy, and offers survey, design, application, mounting, maintenance and 24/7 technical support. The panel manufacturer's linear performance warranty of up to 30 years is information stated on the site and is the manufacturer's warranty.
The reference list ranges from a 26 kW off-grid villa with batteries to a 4.5 MW on-grid industrial roof; it also includes projects such as a 970 kW factory roof, a 1.3 MW industrial roof and 5.5 kW agricultural irrigation. This variety gives a concrete answer to the "reference at the same scale" question in criterion 2. The full list of projects is on the references page.
The installations shared on Instagram show 605 W TommaTech TOPCon panels, hybrid inverters and LiFePO4 batteries; for example, a Manavgat installation used 20 panels, a 15 kW hybrid inverter and a 15 kWh battery. Customer contract moments are also shared as "joining the Solar Nexo family".
On the process side, Solar Nexo describes the following flow on its website: free site survey, project design, installation and commissioning, then maintenance and technical support. For net-metered systems, the connection approval letter application and project approval are added to the process. By comparing this flow with your own list, you can ask other companies for an equally clear process definition.
Finally, look at the contract clauses: the delivery and commissioning schedule, payment plan, penalties in case of delay, warranty transfer and service terms should be in writing. A promise that is not in the contract remains a promise that is hard to prove later; so rely on the signed text, not on marketing language.
What to do before deciding
Get written quotes from at least two or three companies, match the equipment in the quotes at the same power and the same scope, and ask to see one of the reference installations on site or to speak to the person responsible. Learning what the free site survey covers determines which information you should prepare before requesting quotes.
Conclusion
The right choice among solar companies in Antalya is made on documentable criteria: survey, references, equipment and warranty documents, written quote, knowledge of the regulation and service. Price alone is misleading; comparing scope and documents protects your investment. Whichever company you choose, do not neglect to turn what is said into writing and what is written into documents; in a 25-30 year system the most valuable capital is trust, and trust should be documentable. For your questions, you can reach us through our contact page.
Frequently asked questions
What should I look at first when choosing a solar company in Antalya?
First check whether the company does an on-site survey, can show references at a similar scale and gives an itemised written quote. Then ask about the brand and model of the panels, inverter and battery, the warranty documents and its role in the application process. Price should be compared after these checks, on the same scope and the same class of equipment; price alone should not be the deciding criterion.
What information must be in writing in a quote?
The quote should state installed power (kWp), the number, brand and model of panels, the inverter and battery models if any, the mounting structure material, cables and protection equipment, the scope of application and project approval procedures, warranty periods, the payment plan and the work schedule. Also ask clearly about excluded items; for example, application costs, extra cabling or a panel board change may be outside the quote.
Is the panel warranty 25 years or 30 years?
It depends on the panel model, and product warranty and performance warranty are separate concepts. For example, the TommaTech 605 W TOPCon model has a 15-year product and 30-year performance warranty; the dual-glass model has a 25-year product warranty. Ask for the datasheet and warranty certificate of the model you are quoted; warranty periods for inverters and batteries are usually much shorter, for example 5 years for a standard inverter warranty from some brands.
Does the company make the solar panel application in Antalya?
The application is made in the property owner's name through AEDAŞ's LUS portal, but the installation company often takes on preparing the file and following it up. At the quote stage, you need to confirm in writing whether the connection approval letter, project approval and acceptance steps are included in the scope and who follows them up. Application fees may be charged separately.
Is choosing the cheapest quote risky?
Looking only at price is risky, because a low quote can mean lower-quality equipment, missing scope or application costs left out. Compare quotes on the same capacity, the same equipment class and the same warranty terms; then also factor in maintenance, monitoring and service scope to assess the total cost of ownership.
How do I verify a company's references?
Ask for the project power, type and location in the reference list; if possible, see an installation on site or speak to the person who gave the reference. Social media posts and installation photos are supportive, but should be assessed together with documents such as contracts and connection agreements. If a company genuinely has field experience, it will readily share the project power and equipment.
Sources
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