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Applying for a permit to modify a plant for the production of electricity from renewable energy sources (repowering)

Do you operate a plant for the generation of electricity from renewable energies that requires a permit under immission control law, for which you already have a permit under immission control law, and are planning to carry out repowering measures at this plant?

Repowering measures are used to modernise a plant for the purpose of generating electricity from renewable energies.

This repowering measure may cause adverse effects in relation to the current state of the plant. Insofar as these are relevant to the approval requirements of the installation subject to approval, a modification permit is required.

For this reason, corresponding changes to installations requiring approval must be reviewed by the immission control authority. To do this, you will need to submit an application for a change permit and submit all the necessary documents for the assessment. The application can be made in writing or electronically. At your request, only requirements will be examined as part of the modification approval procedure if the repowering causes adverse effects in relation to the current state.

Process flow

In order to apply for a change permit from the competent authority, you must first submit the application documents in full.

You can do this in writing or electronically (e.g. using the ELiA application program). The competent authority will confirm receipt of the application in writing or electronically, check it for completeness and involve the relevant authorities.

If necessary, the authority will request further documents

Which documents are required?

Supplementary amendment

What are the fees?

The fee depends on the construction costs.

What deadlines do I have to pay attention to?

There are no deadlines.

Processing duration

Processing Time: 3 - 7 Months

Applications / forms

Forms available: Yes

Written form required: written or electronic

Informal application possible: No

Personal appearance required: No


  • Contradiction
  • Complaint

Technically approved by

Lower Saxony Ministry for the Environment, Energy and Climate Protection

Professionally released on



The text was automatically translated based on the German content.

Source: Serviceportal Niedersachsen (Portalverbund des Bundes und der Länder)