Big Battery Lausitz
66 MW, 53 MWh (0.8 hours) in Brandenburg, registered as operating since 19 November 2020. 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 one unit.
| Unit | Register number | MW | MWh | Commissioned | Battery | Grid operator check |
|---|---|---|---|---|---|---|
| Big Battery Lausitz MaStR and owner disagree | SEE905930139120 | 66 | 53 | 19 November 2020 | Lithium | checked |
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 register | Commercial register entry, as the operator gave it | Seat |
|---|---|---|
| Lausitz Energie Kraftwerke AG | Amtsgericht Cottbus HRB 8327 | Cottbus, Brandenburg |
Owner. EP Group, through LEAG GmbH, through Lausitz Energie Verwaltungs GmbH (majority owner, per LEAG). From the owner’s own publication. Evidence: LEAG company page: Lausitz Energie Verwaltungs GmbH is the majority owner of Lausitz Energie Kraftwerke AG; an AG's shareholders are not shown in the register. Checked 11 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
| Owner, as published | LEAG (Lausitz Energie Bergbau AG and Lausitz Energie Kraftwerke AG), at the Schwarze Pumpe power station site pv magazine Deutschland, 10 July 2019 |
| Owner’s parent | LEAG is owned by EPH and PPF oEnergetice.cz, 21 December 2018 |
| Built by | EGEM (České Budějovice) responsible for construction of the 13 battery containers oEnergetice.cz, 21 December 2018 |
| Power, as the owner gives it | Over 50 MW (register holds 66.0 MW) pv magazine Deutschland, 10 July 2019 |
| Power, as the owner gives it | Up to 50 MW of primary control reserve ZfK, 13 January 2021 |
| Energy, as the owner gives it | 53 MWh pv magazine Deutschland, 10 July 2019 |
| In operation, as the owner gives it | Trial operation completed at the turn of 2020/2021; in the control reserve market by 2021-01-13 ZfK, 13 January 2021 |
| Also published | Funded by the state of Brandenburg; investment about EUR 25 million; 13 lithium-ion modules pv magazine Deutschland, 10 July 2019 |
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 company | 50Hertz Transmission GmbH |
| Connected at | extra high voltage (220 or 380 kV) |
| Municipality | , district of Spree-Neiße |
| State | Brandenburg |
| Permit | Landkreis Spree-Neiße, 00832-19-20, 00822-19-20, 70.2-02-612-004-19 |
| Register location | SEL981397405626 |
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 3 December 2020; last changed in the register on 14 February 2024.
| Seen | Unit | What changed | From | To |
|---|---|---|---|---|
| 15 October 2026 | Big Battery Lausitz | Municipality key | blank | 12071 |
Doubts about this entry
MaStR and owner disagree. Big Battery Lausitz, Lausitz Energie Kraftwerke (LEAG), registered at 66 MW and 52.6 MWh. It was reported at 50 MW when it was built (pv magazine, https://www.pv-magazine.de/?p=16237); the MWh agree and the MW do not. Counted at the register’s 66 MW. The register gives it no coordinates or municipality.
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.