Solar Permits in Iran: A Checklist Before You Connect

Before any rooftop solar system in Iran can legally connect to the grid, it needs sign-off from your local electricity distribution company: an interconnection application, an agreed metering arrangement, and often a permit or notification tied to your installation. The single most important thing to understand about this process in 2026 is that exact requirements, forms, fees, and timelines vary by province and by distribution company, and they change over time. This article gives you a methodology for verifying current requirements and a checklist for what to confirm before you sign a contract, rather than a fixed list of rules that may already be outdated by the time you read it. Always confirm current requirements directly with your local distribution company and a licensed installer before relying on any written guide, including this one.

It also helps to know that some requirements are municipal rather than purely electrical, particularly around roof access, fire safety setbacks, and structural review for older buildings. A permit process can therefore involve more than one office: the electricity distribution company for interconnection and metering, and potentially a municipal or building authority for structural or safety sign-off depending on your city and building type. Ask your installer explicitly which offices are involved for your specific property before assuming the process is a single application.

Grid interconnection for residential solar generally involves three separate but related approvals: an electrical permit or notification confirming your installation meets safety code, a structural sign-off confirming your roof can support the array, and a utility interconnection agreement that governs how your system connects to and interacts with the distribution grid, including metering. In many markets, the installer manages the bulk of this paperwork on your behalf, but the account holder, meaning you, remains the party legally responsible for the contract and the property. Metering typically changes from a simple one-direction meter to a bidirectional or net meter capable of recording both the electricity you import and any electricity your system exports, if your local program allows export at all.

Documentation is the practical core of this process. At minimum, expect to need proof of property ownership or tenancy rights, your most recent electricity bills or account number, a single-line electrical diagram of the proposed system, equipment datasheets for modules and inverter, and a completed interconnection application form specific to your distribution company. Some distribution companies require the installer to hold specific certifications or registrations before an application is accepted; verify this before you sign a contract, not after installation is complete. Processing timelines for review and approval vary and can take anywhere from a few weeks to considerably longer depending on the office's workload and the completeness of your submitted paperwork, so build buffer time into your project schedule rather than assuming a fixed number of days.

Contracts and ownership questions deserve their own attention, separate from the technical approval. Ask who legally owns the interconnection agreement and the meter, whether that agreement transfers automatically if you sell the property or needs to be reassigned, and what obligations you take on as the account holder, such as maintaining insurance or notifying the utility of equipment changes. If your household plans to add battery storage or expand the array later, ask now whether that requires a new interconnection review or simply an amendment, since retrofitting approval after installation is often slower than including it in the original application.

When evaluating an installer's proposal, ask direct questions about this process rather than accepting a vague assurance that they will handle everything. Confirm which specific forms and fees apply in your province, whether the interconnection application is submitted before or after physical installation begins, what metering equipment will be installed and who owns it, and what happens if the utility requests design changes after review. Ask whether your installer has completed interconnection applications with your specific distribution company before, since local familiarity with a specific office's process often shortens approval time meaningfully. If your system includes battery storage, confirm whether that adds a separate approval step, since some utilities treat storage-only or hybrid systems differently from grid-tied-only PV.

Interconnection rules interact closely with several other parts of your project. Your electrical panel needs to meet the utility's and code's capacity and configuration requirements, covered in electrical panel ready for solar; a panel upgrade discovered mid-application can add real time to your project timeline. The final commissioning step, described in commissioning a solar system, is often what triggers the utility's permission to operate, meaning your system cannot legally be switched on for normal use until commissioning and interconnection approval are both complete. How your exported energy will be credited, if at all, is a separate question from interconnection approval itself and is covered conceptually in net metering explained; do not assume export credit terms until your distribution company confirms them in writing for your specific account. A well-structured proposal, reviewed against solar proposal checklist, should state clearly which party is responsible for each of these approvals and by what estimated date.

Treat permits and interconnection as a documentation and verification exercise, not a formality your installer quietly handles in the background. Ask for copies of every submitted form, every approval, and the final permission to operate, and keep them alongside your other system records for the life of the installation. A system that is technically complete but not properly interconnected and approved is not actually finished, and operating a grid-tied system without proper authorization can create real liability and safety risk both for you and for utility workers who assume disconnected lines are safe to touch.