Germany · renewables
Battery storage in Stormarn
8,871 storage units with 48.8 MW of gross capacity were in operation in Stormarn (Schleswig-Holstein) as of 2026-11-05, with a further 330 units (8.70 MW) registered as planned (Bundesnetzagentur, Marktstammdatenregister) — every unit over 100 kW with capacity, status, commissioning date and operator, from the Marktstammdatenregister.
Questions this page answers
- How many storage units are registered in Stormarn (Schleswig-Holstein), and how large are they, as of 2026-11-05?
- 8,871 storage units with 48.8 MW of gross capacity were in operation in Stormarn (Schleswig-Holstein) as of 2026-11-05, with a further 330 units (8.70 MW) registered as planned (Bundesnetzagentur, Marktstammdatenregister) — every unit over 100 kW with capacity, status, commissioning date and operator, from the Marktstammdatenregister.
- How many storage units are in operation in Stormarn?
- 8,871 storage units with 48.8 MW of gross capacity were in operation in Stormarn as of 2026-11-05, with a further 330 units (8.70 MW) registered as planned; the count includes every registered unit down to home batteries (Bundesnetzagentur, Marktstammdatenregister).
- How much battery storage capacity was commissioned in Stormarn in 2025?
- 1,893 storage units with 9.91 MW went into operation in Stormarn in 2025; the strongest year of the last two decades was 2024 with 11.1 MW (Bundesnetzagentur, Marktstammdatenregister).
- What share of Stormarn's storage units are larger than 100 kW?
- 5 of 9,279 registered storage units in Stormarn (0.1 percent) exceed 100 kW, but they hold 6.72 MW of the 57.7 MW total capacity (Bundesnetzagentur, Marktstammdatenregister).
- Which company operates the most battery storage capacity in Stormarn?
- QQ17 Solarkraft GmbH operates 2 storage units over 100 kW with 5.44 MW in Stormarn, the largest organisational operator by registered capacity (Bundesnetzagentur, Marktstammdatenregister).
- Which technology has the most battery storage capacity in Stormarn?
- Lithium-Batterie leads with 5 storage units and 6.72 MW in Stormarn (Bundesnetzagentur, Marktstammdatenregister).
- What is the largest storage unit in Stormarn?
- The largest registered storage unit in Stormarn has 5.00 MW of gross capacity and is operated by QQ17 Solarkraft GmbH, registered as planned (Bundesnetzagentur, Marktstammdatenregister).
How are the storage units in Stormarn distributed by size class?
| Size class | Units | Capacity | In operation | Planned |
|---|---|---|---|---|
| up to 30 kW | 9,257 | 50.1 MW | 8,856 | 324 |
| 30 to 100 kW | 17 | 0.91 MW | 13 | 3 |
| over 100 kW | 5 | 6.72 MW | 2 | 3 |
How much battery storage capacity was commissioned in Stormarn each year?
| Commissioning year | Units | Capacity added |
|---|---|---|
| 2026 | 2,041 | 10.6 MW |
| 2025 | 1,893 | 9.91 MW |
| 2024 | 1,865 | 11.1 MW |
| 2023 | 1,802 | 10.7 MW |
| 2022 | 580 | 2.91 MW |
| 2021 | 310 | 1.53 MW |
| 2020 | 185 | 0.93 MW |
| 2019 | 95 | 0.45 MW |
| 2018 | 47 | 0.23 MW |
| 2017 | 37 | 0.16 MW |
| 2016 | 30 | 0.18 MW |
| 2015 | 20 | 0.10 MW |
| 2014 | 29 | 0.16 MW |
| 2013 | 10 | 0.04 MW |
| 2012 | 2 | 0.01 MW |
| 2010 | 1 | 0.01 MW |
| 2009 | 1 | 0.00 MW |
How many storage units in Stormarn are in operation, planned or decommissioned?
| Status | Units | Capacity |
|---|---|---|
| in operation | 8,871 | 48.8 MW |
| planned | 330 | 8.70 MW |
| permanently decommissioned | 71 | 0.21 MW |
| temporarily shut down | 7 | 0.02 MW |
Which storage units over 100 kW are registered in Stormarn?
| Unit | Capacity | Usable capacity | Status | Commissioned | Operator |
|---|---|---|---|---|---|
| Sturmwind 2.1 | 5.00 MW | 6.8 MWh | planned | planned 2026 | QQ17 Solarkraft GmbH |
| PV-Speicher Benstaben | 1.02 MW | 2.0 MWh | planned | planned 2026 | IMS Erneuerbare Energien GmbH |
| Sturmwind 1.1 | 0.44 MW | 900 kWh | planned | planned 2026 | QQ17 Solarkraft GmbH |
| unit operated by a private individual | 0.14 MW | 288 kWh | in operation | 2023-01-02 | private individual |
| unit operated by a private individual | 0.12 MW | 144 kWh | in operation | 2023-01-02 | private individual |
Which organisations operate the most battery storage capacity in Stormarn?
| Operator | Units | Capacity |
|---|---|---|
| QQ17 Solarkraft GmbH | 2 | 5.44 MW |
| IMS Erneuerbare Energien GmbH | 1 | 1.02 MW |
Which technology accounts for the most battery storage capacity in Stormarn?
| Technology | Units | Capacity |
|---|---|---|
| Lithium-Batterie | 5 | 6.72 MW |
Battery storage in Schleswig-Holstein · Battery storage in Germany
Source: Bundesnetzagentur, Marktstammdatenregister (MaStR), full data export of 2026-11-05, Datenlizenz Deutschland – Namensnennung – Version 2.0. Counts and capacity by district, size class, commissioning year and status cover every registered unit, including small rooftop and balcony systems. Unit lists, operators and grid operators cover units over 100 kW gross capacity; units operated by private individuals are shown without name, operator or coordinates. Capacity is gross capacity (Bruttoleistung) as registered; planned units are those registered as 'In Planung'. District (Landkreis) is the register's own assignment. Source record.
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