MJ 12. Speicher
MJ 12. Speicher battery storage overview.
MJ 12 is a lithium battery storage installation at Langenisarhofen in Moos, Bavaria. Germany’s market register records 4.75 MW of discharge power and 13.416 MWh of usable storage, with commissioning on 5 June 2025. The AC-coupled installation connects to Bayernwerk Netz and is operated by MJ 12. Solarbetriebsgesellschaft.In OperationGermany
At a Glance
Capacity
4.8 MWEnergy storage
13.4 MWhStorage duration
2.8 hoursStorage type
UnknownOwner
MJ 12. Solarbetriebsgesellschaft GmbH & Co. KGOperator
Data coming soonCountry
GermanyLocation
48.729°, 12.975°Website
Official project pageOwnership
1 record| Share | Organisation | Role | Details | Period |
|---|---|---|---|---|
| Unknown | Operator | Germany’s market register identifies MJ 12. Solarbetriebsgesellschaft as the operator of unit SEE963176274500. | Current / not dated |
Organisations
3 recordsOrganisations recorded as working on this asset or its project, and their role.
| Organisation | Role | Details |
|---|---|---|
| Connection network operatorGrid Connection | Bayernwerk Netz is recorded as the connection network operator for MJ 12; the register lists a high-voltage connection. | |
MJ 12. Solarbetriebsgesellschaft | Operator | Not set |
| Registered battery operatorOperations Maintenance | Registered operator of the MJ 12 storage unit, separate from the neighbouring MJ 6 unit. |
Supplier registration
Contact page onlyHow suppliers get onto this project's radar: its standing register, supplier portal or contact route.
General business enquiries can use the operator’s contact details in Germany’s official market register. This company-wide route does not provide project-specific supplier registration.
The operator’s general business contact details published in MaStR; the route applies to the company rather than a project-specific supplier register.
SourceChecked 28 Oct 2026