Modification of an installation requiring approval under the Federal Immission Control Act (BImSchG) Approval as part of the repowering of an installation for the generation of electricity from renewable energies

    If you intend to make significant changes to an installation that requires a permit and generates electricity from renewable energy sources, you must apply for a permit from the competent authority.

    Description

    Do you operate an installation that requires approval under immission control legislation, for which you already have approval under immission control legislation, and are you planning to carry out repowering measures on this installation?

    Repowering measures serve to modernize an installation for the purpose of generating electricity from renewable energies.

    This repowering measure can have adverse effects in relation to the current state of the installation. If these are significant for the approval requirements of the installation requiring approval, a modification permit is required.

    For this reason, any significant changes to installations requiring approval must be reviewed by the immission control authority. To do this, you must submit an application for a modification permit and submit all the documents required for the assessment. The application can be made in writing or electronically.

    Competent office

    The environmental department of the regional council responsible for the plant location is responsible.

    Contact person

    Regierungspräsidium Gießen - Dezernat 43.1 - Immissionsschutz I

    Address

    address

    Marburger Straße 91

    35338 Gießen

    Save contact

    Contact

    telephone: +49 641 303-0(Zentrale)

    fax: +49 641 303-2197

    e-mail: verwaltungsportal.AbtIV@rpgi.hessen.de

    Internet

    Version

    Technisch geändert on 12.02.2026

    Language version

    de

    Sprache: de

    Regierungspräsidium Gießen - Dezernat 44.1 - Bergaufsicht

    Address

    address

    (Hauptgebäude/Fristenbriefkasten)

    Landgraf-Philipp-Platz 1 - 7

    35390 Gießen

    Save contact

    postal address

    Post office box 10 08 51

    35338 Gießen

    address

    (Besucheradresse)

    Marburger Straße 91

    35396 Gießen

    Save contact

    Opening hours

    Das Regierungspräsidium Gießen ist täglich telefonisch erreichbar:

    montags - donnerstags 08:00 - 16:30 Uhr
    freitags 08:00 - 15:00 Uhr

    Für einen persönlichen Besuch vereinbaren Sie bitte einen Termin.

    Contact

    telephone: +49 641 303-0(Zentrale)

    fax: +49 641 303-2197

    e-mail: verwaltungsportal.AbtIV@rpgi.hessen.de

    Internet

    Version

    Technisch geändert on 12.02.2026

    Language version

    de

    Sprache: de

    Regierungspräsidium Gießen - Dezernat 43.2 - Immissionsschutz II

    Address

    address

    (Hauptgebäude/Fristenbriefkasten)

    Landgraf-Philipp-Platz 1 - 7

    35390 Gießen

    Save contact

    postal address

    Post office box 10 08 51

    35338 Gießen

    address

    (Besucheradresse)

    Marburger Straße 91

    35396 Gießen

    Save contact

    Contact

    telephone: +49 641 303-0(Zentrale)

    fax: +49 641 303-2197

    e-mail: verwaltungsportal.AbtIV@rpgi.hessen.de

    Internet

    Version

    Technisch geändert on 12.02.2026

    Language version

    de

    Sprache: de

    Regierungspräsidium Gießen - Dezernat 42.2 - Kommunale Abfallwirtschaft/Abfallentsorgungsanlagen

    Address

    address

    Marburger Straße 91

    35396 Gießen

    Save contact

    Contact

    Version

    Technisch geändert on 12.02.2026

    Language version

    de

    Sprache: de

    Required documents

    Prerequisites

    Approval for change shall be granted if:

    • it is ensured that the obligations arising from the requirements of the Federal Immission Control Act and the Federal Immission Control Ordinance are fulfilled and
    • other public law regulations and occupational health and safety concerns do not conflict with the construction and operation of the plant.

    A permit for wind turbines in the context of repowering may also not be refused if, after the modernization, not all immission guideline values of the technical instructions for protection against noise are complied with, but

    • the immission contribution of the wind turbine after modernization is lower than the immission contribution of the wind turbines replaced by it, and
    • the wind turbine is state-of-the-art.

    Action before the administrative court or administrative court of justice

    Procedure

    The approval procedure requires a written or electronic application, which must be accompanied by the drawings, explanations and other documents required to check the approval requirements.

    If the application is complete, it may have to be made public together with the documents and then displayed for one month. At the latest at the same time as the public announcement of the project, the approval authority also requests the authorities to be involved to submit their comments on the approval requirements within one month.

    If there are objections, these will be discussed with you and those who have raised the objections in a meeting. Once the licensing authority has determined all the circumstances that are relevant to the granting of a license, a decision must be made on the application.

    The approval decision must be substantiated in writing and will be served to you and the persons who have raised objections. The notification of the approval notice to objectors can be replaced by a public announcement.

    Deadlines

    You must apply to the competent authority for approval of the system before commencing the modification.

    Processing time

    3 to 6 months (The duration can be extended by the authority.)

    Costs

    Fee from 2.500,00 EUR to 1.800.000,00 EUR

    Further Information

    Area of validity

    Hesse

    Official approval

    Officially approved by Hessian Ministry of Agriculture and Environment, Viticulture, Forestry, Hunting and Homeland on 02.01.2024

    Version

    Technisch erstellt on 23.05.2023

    Technisch geändert on 14.05.2025

    Keywords

    Änderung einer Anlage, Erneuerbare Energien, Modernisierung, Stromerzeugung, Erzeugung von Strom

    Language version

    Deutsch

    Sprache: de

    Technisch erstellt on 07.06.2017

    Technisch geändert on 14.05.2025

    Englisch

    Sprache: en

    Sprachbezeichnung nativ:

    English

    Technisch erstellt on 07.07.2021

    Technisch geändert on 26.11.2019