Arzberg

Battery storage

100 MW

200 MWh

Germany

The Battery Energy Storage System (BESS) in Arzberg, in Germany's Wunsiedel district, is a landmark project in Europe's energy transition. With 100 MW installed capacity and 200 MWh storage capacity, the facility stabilizes the electricity grid and supports the integration of renewable energy sources. Using advanced lithium-ion technology, it stores excess renewable energy and releases it when needed, providing essential flexibility to the power network. Realized as the first project under the MW Storage Fund, launched in 2022, it was developed with Reichmuth Infrastructure as majority shareholder, alongside Bayernwerk and ZENOB as co-investors.

Commissioning:

Q4 2025

2025

Source of Revenue:

Ancillary Services, Energy Trading

Technology Provider:

Fluence Energy

Optimizer / Aggregator:

Entrix & Enspired

Aerial view of the Arzberg battery storage facility with white containers arranged in rows and a construction crane on site.
  • Large power transformer with oil cooler on a concrete foundation next to a high-voltage switchgear with insulators and overhead line masts at a substation under construction.
  • Drone shot of a utility-scale battery energy storage facility under construction with densely arranged storage containers, a substation and construction vehicles, surrounded by agricultural fields and woodland edges.
  • Drone shot of a utility-scale battery energy storage facility with multiple rows of installed storage containers, a substation under construction and high-voltage pylons, surrounded by agricultural fields.
  • Opened battery energy storage container revealing stacked lithium-ion battery modules with orange high-voltage connectors and internal wiring at an outdoor utility-scale storage facility.
  • Aerial view of a utility-scale battery energy storage facility under construction, showing installed storage containers, prepared foundations, construction vehicles, transformers and a high-voltage pylon at the edge of the site.
  • Exterior view of multiple large-scale battery energy storage containers featuring ventilation grilles, emergency shut-off switches and hazard labels.
  • Rows of battery storage units with switchgear cabinets and cooling systems on a gravel surface at a utility-scale BESS site under construction.

More Projects

  • Mattila

    Mäntsälä, Finland

    20 MW

    21.5 MWh

  • Kapuli

    Mäntsälä, Finland

    20 MW

    21.5 MWh

  • Ikaalinen

    Ikaalinen, Finland

    13.4 MW

    22 MWh

  • Ingenbohl I

    Ingenbohl, Switzerland

    20 MW

    18 MWh

  • Ingenbohl II

    Ingenbohl, Switzerland

    8 MW

    8 MWh

  • Kerava

    Kerava, Finland

    20 MW

    20 MWh

Project Overview