Connection to the grid

• Electricity Supply Act
• Commission Regulation (EU) 2016/631

The Electricity Supply Act does not provide any details on the connection to the Danish grid, but, leaves this to the Ministry of Climate, Energy and Utilities to specify.
In general, the process to gain access to the Danish TSO energy grid consists of four steps:
• Preparation;
• Current setting permit (EON);
• Temporary operation permit (ION); and
• Final operation permit (FON).
Furthermore, the plant must comply with the Commission Regulation (EU) 2016/631.
Preparation
In the preparation stage plant developers must provide documentation to its grid operator on the proposed plant to connect to the Danish grid. Then, a decision is taken by the grid operator and Energinet on whether the plant will be connection to the distribution grid or the transmission grid.
A second part concerns the concretisation of the project between the plan owner and Energinet, which can take up to 3.5 years. In this part, the plant owner and Energinet discuss any changes that need to me made to the plan or to the grid (e.g., expanding the capacity of the grid in the area of the proposed plant). Finally, the plant owner and Energinet conclude a contract for the building of the plant.
Current setting permit
Once the plant is constructed the plan owner must apply for a current setting permit (EON).
Temporary operation permit
The plant owner must provide documentation that the plant complies with EU rules on power generators and a plan for the testing phase of the power plant. The temporary operation permit (ION) may be issued for period of a maximum of 2 years.
The plant owner conducts the necessary tests and Energinet reviews the results to ensure compliance with standards.
Final operation permit
If the testing phase results in a pass, Energinet will issue a final operation permit (FON).
For connection to DSOs, the procedure varies depending on the DSO. However, in general the procedure requires a pre-approval from the DSO and a building permit from the municipality, then a positive reply from the DSO. Once the installation is complete according to the specifications given in the pre-approval form, the installer requests the final approval from the DSO.
Approval process
The approval process for connection to a DSO requires that the RES installation owner contacts a certified installer who fills out the pre-approval form from the DSO as well as the RES specification and data form from Dansk Energi (lobby organisation for Danish energy companies).
Installation and connection to the grid
The installer constructs the RES installation and notifies of the construction to the DSO who will install a meter to the RES installation and connect it to the grid. After which the RES installation will be in operation.

Non-discrimination
Anyone is allowed to connect to the grid to supply electricity against payment. (§24 Electricity Supply Act)