In short: In Izmir, license-exempt solar PV applications are filed online through Gediz EDAŞ’s YBS portal. If the commission finds the application favorable, a call letter for the connection agreement is issued. Then come design approval, the connection agreement, installation, provisional acceptance and the system use agreement; net metering starts last. Information is current as of November 9, 2026.
Who can install license-exempt solar PV?
Individuals and legal entities that have, or will obtain, an electricity subscription can install one. The plant’s capacity must be consistent with the subscription’s contracted power.
The plant can be rooftop or ground-mounted. For some application types, generation and consumption do not have to be at the same location. Ground-mounted plants need more documents: an EIA (ÇED) letter and a zoning plan are also required.
Solar plants mounted on a building’s roof or facade and not exceeding 25 kW have a simplified route. Fewer documents are required, and the transformer capacity of TEİAŞ (Turkish Electricity Transmission Corporation) is not checked. If connecting at low voltage, the distribution transformer’s loading on the generation side must not exceed 50%.
What are the steps?
The process has seven steps. Each step depends on the outcome of the one before it.
Application
Documents are submitted online through Gediz EDAŞ’s YBS portal. The provision of the regulation that fits the application is selected.
Applicant or agentCommission review
The Document Evaluation Commission reviews the application in the following month. Above 25 kW, the Technical Evaluation Commission and EİGM also review it.
Commission, EİGMCall letter
If the outcome is favorable, a call letter for the connection agreement is issued. The connection opinion in the letter is the basis of the design.
Gediz EDAŞDesign approval
The electrical design is prepared according to the connection opinion and submitted for approval. If a connection line is needed, its design is approved too.
Engineer → Gediz EDAŞConnection agreement
The agreement is signed with the approved design, the call letter and the title deed.
Applicant, Gediz EDAŞInstallation and provisional acceptance
Panels, inverters and wiring are installed. The distribution company then performs provisional acceptance.
Installer, Gediz EDAŞSystem use agreement
Once the agreement is signed, net metering begins and the plant goes into operation.
Applicant, Gediz EDAŞ
A site survey comes before the application. It covers the roof’s orientation, shading and structure, plus the contracted power and subscriber group on the bill. The provision to apply under and the plant capacity are set from this information.
What should you watch for when applying?
The first issue is missing documents. After the commission review, missing documents cannot be added to the same application. If the application is rejected, you must reapply and wait for the next commission month.
The second is capacity. TEİAŞ sets the capacity allocated to transformer substations; the distribution company cannot change it. That is why no application’s approval can be guaranteed in advance.
The third is timing. The commission meets monthly; a missed month pushes back every later step.
Rooftop applications of 25 kW or less are reviewed for documents only.
What documents are needed for connection and acceptance?
Each stage has its own list. The main documents are below. If an authorized agent handles the process, a power of attorney is also required at every stage; the applicant is still the facility owner.
| Stage | Main documents |
|---|---|
| Connection agreement | Approved design, call letter, current title deed, building permit or occupancy permit. An EIA (ÇED) letter for ground-mounted plants; the connection line design, if any. |
| Provisional acceptance | Ready-for-acceptance report, acceptance fee receipt, fire department report. Above 25 kW, a civil engineering authorization letter; for ground-mounted plants, the zoning plan. |
| System use agreement | Provisional acceptance report, connection agreement, facility approval form, and receipts for the security deposit and stamp duty. |
Main equipment used in the installation, such as panels, inverters and batteries, must have been manufactured within the last five years.
Can the plant run before acceptance?
No. A plant put into operation before acceptance is disconnected from the grid, and the sanctions in the regulation apply. A plant built without a call letter or connection agreement is dismantled; those responsible cannot apply again for three years.
The plant goes into service after the system use agreement. Surplus energy is purchased by the incumbent supply company for ten years from the date it is first fed into the grid. Except for residential subscribers, no payment is made for the portion exceeding twice the annual consumption, or for energy fed into the grid from batteries.
Net metering means offsetting generated energy against consumed energy. For plants that received a call letter after May 12, 2019, net metering is monthly for residential subscribers and hourly for other subscriber groups.
Frequently asked questions
Where do you apply for solar PV in Izmir?
Online, through Gediz EDAŞ’s YBS portal. If you are in an organized industrial zone (OSB) with a distribution license, you apply to the OSB.
What happens if I apply with missing documents?
Missing documents cannot be added after the commission review. If the application is rejected, you must reapply.
Does rooftop solar PV need a building permit?
In areas with a zoning plan, a solar system installed for the building’s own needs is exempt from a building permit. Still, construction drawings, permission from the local authority and the consent of the unit owners are required; the system must not affect the load-bearing structure.
How is surplus electricity offset?
For plants that received a call letter after May 12, 2019, net metering is monthly for residential subscribers and hourly for other subscriber groups. Except for residential subscribers, no payment is made for the portion exceeding twice the annual consumption, or for energy fed into the grid from batteries.
Sources
- Regulation Amending the Regulation on License-Exempt Electricity Generation in the Electricity Market, Official Gazette No. 33212, April 2, 2026
- Amendment to the Regulation on License-Exempt Electricity Generation in the Electricity Market, Official Gazette No. 33405, October 19, 2026
- Gediz EDAŞ, License-Exempt Electricity Generation FAQ Booklet, June 2026
- Gediz EDAŞ, License-Exempt Generation Connection, System Use and Acceptance Document Lists, March 2026
- Gediz EDAŞ, License-Exempt Solar PV Design Approval Fees 2026 (EPDK Board Decision, December 25, 2025, No. 14165-12)
- Planned Areas Zoning Regulation (Planlı Alanlar İmar Yönetmeliği), Article 59
