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BW ESS Germany 1GW Long-Duration Battery Energy Storage System

Sector: Energy Storage • Location: Klostermansfeld, Saxony-Anhalt, Germany

Source: Energy-Storage.News

Project
Under Construction

BW ESS is developing its first project in Germany, a large-scale battery energy storage system (BESS) with a capacity of 1GW and a duration of up to 5.7 hours, located in Klostermansfeld, Saxony-Anhalt. The project is connected to a critical substation operated by the 50Hertz transmission system operator and is part of a significant infrastructure upgrade including the SuedOstLink interconnector.

Status
Under Construction
Sector
Energy Storage, Commercial
Location
Klostermansfeld, Saxony-Anhalt, Germany
Updated
22 Jul 2026
Source
Energy-Storage.News

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The project “BW ESS Germany 1GW Long-Duration Battery Energy Storage System” is an infrastructure initiative in the Energy Storage sector, located in Klostermansfeld, Saxony-Anhalt, Germany. Taiyo aggregates data on it from Energy-Storage.News.

Participants

Not available for this record.

Status

Original status

under construction

Taiyo status

Under Construction

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

BW ESS is developing its first project in Germany, a large-scale battery energy storage system (BESS) with a capacity of 1GW and a duration of up to 5.7 hours, located in Klostermansfeld, Saxony-Anhalt. The project is connected to a critical substation operated by the 50Hertz transmission system operator and is part of a significant infrastructure upgrade including the SuedOstLink interconnector. Early-stage construction has begun with road reinforcement and topsoil removal, and the project targets commercial operation date in Q4 2028. BW ESS is in the process of contracting suppliers and EPCs, aiming to optimize the duration and ensure grid fee exemption by August 4, 2029.

Original sector

Energy Storage

Location

Country

Germany

State

Saxony-Anhalt

City

Klostermansfeld

Source

Source

Energy-Storage.News

URL

More Details

Record type

Project

Sector

Energy Storage, Commercial

Article published date

2026-07-20

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