National Contact Point for Renewable Energy Sources

The investment process for large-scale rooftop photovoltaic systems is slightly simplified compared to ground-mounted systems. After obtaining grid connection conditions, a construction permit, and submitting a notification on completion of construction works, it is also necessary to obtain a licence for the generation of electricity from renewable energy sources (RES).

Grid connection conditions are a type of document issued by the distribution or transmission system operator, specifying the technical details related to connecting the photovoltaic power plant to the grid. They also constitute the operator’s obligation to sign a grid connection agreement with the investor, under which the system will be connected to the network. Grid connection conditions, therefore, enable a “temporary reservation of capacity in the grid” for a given project.

If the generator does not conclude a grid connection agreement within 24 months from the date of receipt of the connection conditions, these conditions expire and no longer constitute an obligation to enter into the agreement.

A construction permit is an element of the investment process that forms the basis for commencing construction works on the photovoltaic power plant. Without this decision, it is not possible to start construction works or, at a later stage, proceed to its operation.

Photovoltaic power plants have not been classified as facilities requiring an occupancy permit. Therefore, commissioning of the photovoltaic power plant is possible after notifying the building supervision authority of the completion of construction works, provided that the authority does not raise an objection by way of a decision within 14 days from the date of delivery of the notification.

Obtaining a licence is the final step before commencing the operation of the photovoltaic power plant.