Farge Energy Hub

From a former coal-fired power plant to a modern energy site

A new chapter has begun at the Bremen-Farge energy site. Following the decommissioning of the coal-fired power station, part of the existing power station infrastructure is being dismantled. In doing so, Onyx Power is laying the groundwork for the site’s future use.

Building a modern large-scale battery storage facility is planned on part of the land that will become available. In future, it will be able to store electrical energy and then feed it back into the grid when needed. In this way, Farge is set to remain a key part of the energy supply in the future.

Partial dismantling of the former power plant

Partial dismantling of the former Farge power plant is under way. Following the establishment of the construction site and preparatory measures, dismantling work has been ongoing since summer 2026. During the second half of 2026, the focus is on internal strip-out work, the removal of hazardous materials and initial demolition work.

Under the current plans, around 40 individual structures and facilities are to be completely dismantled or demolished. Among the largest structures is the 149-metre-high chimney. Demolition of the larger structures is scheduled primarily for the first half of 2027. A small number of structures are to be demolished using controlled explosives.

Kraftwerk Farge, Foto: Michael Dieck
Stand: 01.10.2026
  • Current project phase Partial dismantling of the former power plant
  • Work currently under way Internal strip-out, removal of hazardous materials and demolition work
  • Planned completion of partial dismantling Mid-2027

From dismantling to battery storage

The site will be transformed in stages. Based on the current plans, the following project phases are envisaged:

  1. Summer 2026 Site establishment and start of work
  2. Second half of 2026 Internal strip-out, removal of hazardous materials and initial demolition work
  3. First half of 2027 Demolition of larger structures, including the chimney
  4. Mid-2027 Completion of partial dismantling and handover of the cleared areas
  5. From mid-2027 Planned construction of the battery storage facility
  6. End of 2028 Planned commissioning and start of operations of the battery storage facility

Please note: The periods stated reflect the current planning status and may change as the project progresses. We will provide information in good time once specific dates have been confirmed for major works.

A new element in the energy supply system

Onyx Power plans to build one of Germany’s largest battery storage facilities on part of the land made available by the dismantling work. Under the current plans, the facility will have a power output of 350 megawatts and a storage capacity of 1,400 megawatt-hours.

Battery storage facilities can take in electricity and feed it back into the grid at a later point. They can therefore help to make electricity available when it is needed. This flexibility is becoming increasingly important for an electricity system with a growing share of variable renewable energy generation.

According to the current plans, construction is scheduled to begin from mid-2027, with commissioning planned for the end of 2028.

The battery storage facility at a glance

  • 350 MW Power output
  • 1,400 MWh Storage capacity
  • 4 hours Storage duration at full power
  • End of 2028 Planned commissioning
  • 20 years Project lifetime stated in the project documentation

Questions and answers about the project

What will be built on the site of the former Farge power plant?

Onyx Power plans to build a large-scale battery storage facility on part of the former power plant site, with a power output of 350 megawatts and a storage capacity of 1,400 megawatt-hours. The facility will be able to take electricity from the grid and feed it back in at a later point.

Why was Farge chosen as the location for the battery storage facility?

The site already has important infrastructure in place as a result of its previous industrial use. In particular, the existing connection to the extra-high-voltage grid is intended to be reused for the battery storage facility. At the same time, an existing industrial site can be developed further without having to establish a new location.

When will the battery storage facility be built?

Selected parts of the former power plant will first be dismantled. According to the current plans, construction of the battery storage facility is expected to begin in or around the third quarter of 2027. Commissioning is planned for the end of 2028.

Which parts of the former power plant will be dismantled?

Selected plant facilities that are no longer required will be dismantled to make way for the battery storage facility. These include, in particular, parts of the coal-handling and flue-gas cleaning systems, as well as the chimney. Complete demolition of the entire former power plant is not currently planned.

Will there be noise, dust or vibrations during the dismantling work?

Noise and dust cannot be completely avoided during dismantling and demolition work. A comprehensive noise and emissions reduction plan has therefore been developed. All work on the construction site will be carried out under stringent safety requirements and in compliance with statutory emissions limits.

Will the battery storage facility generate noise during operation?

Battery storage facilities generate operating noise, particularly from their cooling and ventilation systems. As part of the permitting process, it must be demonstrated that statutory noise protection requirements will be met, including at night. Additional noise protection measures will be planned if necessary.

Will the facility produce smoke, exhaust gases or odours during operation?

No. A battery storage facility does not burn fuel. Under normal operating conditions, it therefore produces no smoke or exhaust gas emissions and no odours associated with its operation.

How safe is a large-scale battery storage facility for local residents?

Modern battery storage facilities incorporate technical, structural and organisational safety systems. The facility is intended to be monitored around the clock. Protective measures can be initiated automatically in the event of a fault. The relevant authorities and the local fire brigade are already being involved in the planning process. There is also separation between the facilities on the power plant site and neighbouring buildings and other installations.

What happens in the event of a battery fire?

Battery storage facilities are continuously monitored by a battery management system and other safety equipment. If a fire were nevertheless to occur, technical and structural measures are intended to limit its impact and prevent it from spreading. The handling of potentially contaminated cooling water is also being considered during planning and agreed with the relevant authorities.

How does the project support the energy transition?

As the share of wind and solar energy increases, electricity generation becomes more variable. Battery storage facilities can store electricity when energy is plentiful and release it again when it is needed. In this way, they can help to stabilise the electricity grid and support the integration of renewable energy.

What benefits will the project bring to Bremen-Farge?

The battery storage facility will give an existing industrial site a new role in energy supply. Some of the existing infrastructure can be reused. The Farge project will create one of Germany’s largest battery storage facilities – a flagship project with significance well beyond the north of Bremen.

Who can I contact with questions or comments?

Onyx Power is committed to open dialogue about the project. You are welcome to send questions and comments by email to dialog-farge@onyx-power.com.

Your questions about the project

The further development of the Farge energy site affects not only Onyx Power, but also the people living nearby. That is why we want to provide transparent information and maintain an open dialogue with you.

Do you have questions about the partial dismantling, the planned battery storage facility or current work on the former power plant site? Would you like to share information or make a suggestion?

Please get in touch. Our project team looks forward to hearing from you:

farge-dialog@onyx-power.com