Vitreous LabsEnergy transparency

Windpark Reußenköge batteries

33 MW, 56 MWh (1.7 hours) in Reußenköge, Schleswig-Holstein, registered as operating since 10 April 2024. Everything on this page is read from Germany’s register of power units and the other published records named beside each fact.

What it is

The register holds this battery as three units.

UnitRegister numberMWMWhCommissionedBatteryGrid operator check
Speicher 3SEE972880386287204016 December 2025Lithiumchecked
Windpark Reußenköge Batteriespeicher 2SEE9120135381526.4810 April 2024Lithiumchecked
Windpark Reußenköge Batteriespeicher 1SEE9396621920236.4810 April 2024Lithiumchecked

Power is the net power the operator registered, the most the unit may feed into the grid. Energy is the usable capacity of the unit’s installation. A grid operator check marked “checked” means the grid company has confirmed the entry; “under check” means it has not yet. On the large sites we compared, the register’s commissioning date often came months before the owner’s announced start, which suggests it records first energisation.

Who runs it and who owns it

Operator in the registerCommercial register entry, as the operator gave itSeat
Bürgerwindpark Reußenköge GmbH & Co. KGAmtsgericht Flensburg HRA 8301Reußenköge, Schleswig-Holstein

Owner. Local residents of Reußenköge (citizen wind park; privately held). Reported in the trade press and not yet confirmed by the owner or the commercial register. Evidence: Agentur für Erneuerbare Energien, ReWA profile Reußenköge, 28 May 2021: "fast alle Einwohner*innen der Gemeinde mit Eigenkapital an der BWP Reußenköge GmbH & Co. KG beteiligt sind". Checked 16 October 2026. Every battery of this family.

The register names the operator, the company that runs the unit. The owner behind it comes from the commercial register (Handelsregister) or the owner’s own publication, as marked. The register number is the one the operator typed in; on 11 October 2026 we found it wrong or missing for 26 of the companies we looked up.

Who trades it and what it is built from

Also publishedInferred, unconfirmed link: wind developer Dirkshof and EWE subsidiary be.storaged commissioned a 20 MW / 40 MWh battery in Reußenköge (reported 2026-02-06). It may be register unit Speicher 3 (20 MW), but the register operator is Bürgerwindpark Reußenköge and no source joins them our inference ZfK, 6 February 2026
Also publishedFor that Dirkshof battery: be.storaged handled planning, construction, operation and maintenance; Sungrow components our inference Dirkshof / be.storaged press release (pv magazine company news), 11 September 2025

From published documents: the owners’, builders’ and optimisers’ own announcements and the trade press, each linked. Where the owner’s power or energy differs from the register’s, both are shown and every figure on this site uses the register’s.

Where it connects

Grid companyReußenköge Netz & Infrastruktur GmbH
Connected atmedium voltage
MunicipalityReußenköge, district of Nordfriesland
StateSchleswig-Holstein
Land parcelReußenköge, 10; Flurstücke 54 und 56; Reußenköge, Flur 10 Flurstück 54
Registered position54.6154, 8.9069
Register locationSEL933885123659, SEL951192369232, SEL971586764801

As registered. The grid company and voltage come from the register’s public unit table; the position is the one the operator registered. See it on the Atlas.

What has changed in the register

First registered on 11 April 2024; last changed in the register on 6 January 2026. No change has shown in our reads since the first, on 10 October 2026.

What this page cannot show

Germany publishes no battery’s metered output. On 11 October 2026 we checked the four public sources that might carry it: the ENTSO-E Transparency Platform, SMARD, the yearly EEG data and the transmission companies’ redispatch records. None gives the output of any German battery, one by one or as a fleet. So this page cannot say what the battery exported, imported or earned, as Britain’s battery pages do.

Sources: Marktstammdatenregister, Bundesnetzagentur, Datenlizenz Deutschland, Namensnennung 2.0: the full export of 15 October 2026 and the public unit table of 15 October 2026. Company details from the register’s market actor table. Owners from the commercial register and the owners’ publications, as marked. Tender awards from the Bundesnetzagentur’s award lists.