Germany · renewables
Battery storage in Nienburg (Weser)
6,056 storage units with 38.0 MW of gross capacity were in operation in Nienburg (Weser) (Niedersachsen) as of 2026-11-05, with a further 67 units (152.0 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 Nienburg (Weser) (Niedersachsen), and how large are they, as of 2026-11-05?
- 6,056 storage units with 38.0 MW of gross capacity were in operation in Nienburg (Weser) (Niedersachsen) as of 2026-11-05, with a further 67 units (152.0 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 Nienburg (Weser)?
- 6,056 storage units with 38.0 MW of gross capacity were in operation in Nienburg (Weser) as of 2026-11-05, with a further 67 units (152.0 MW) registered as planned; the count includes every registered unit down to home batteries (Bundesnetzagentur, Marktstammdatenregister).
- How much battery storage capacity was commissioned in Nienburg (Weser) in 2025?
- 1,197 storage units with 7.10 MW went into operation in Nienburg (Weser) in 2025; the strongest year of the last two decades was 2023 with 8.95 MW (Bundesnetzagentur, Marktstammdatenregister).
- What share of Nienburg (Weser)'s storage units are larger than 100 kW?
- 5 of 6,161 registered storage units in Nienburg (Weser) (0.1 percent) exceed 100 kW, but they hold 152.3 MW of the 190.2 MW total capacity (Bundesnetzagentur, Marktstammdatenregister).
- Which company operates the most battery storage capacity in Nienburg (Weser)?
- Kyon-56 Battery Storage GmbH operates 1 storage units over 100 kW with 146.5 MW in Nienburg (Weser), the largest organisational operator by registered capacity (Bundesnetzagentur, Marktstammdatenregister).
- Which technology has the most battery storage capacity in Nienburg (Weser)?
- Lithium-Batterie leads with 5 storage units and 152.3 MW in Nienburg (Weser) (Bundesnetzagentur, Marktstammdatenregister).
- What is the largest storage unit in Nienburg (Weser)?
- The largest registered storage unit in Nienburg (Weser) has 146.5 MW of gross capacity and is operated by Kyon-56 Battery Storage GmbH, registered as planned (Bundesnetzagentur, Marktstammdatenregister).
How are the storage units in Nienburg (Weser) distributed by size class?
| Size class | Units | Capacity | In operation | Planned |
|---|---|---|---|---|
| up to 30 kW | 6,149 | 37.4 MW | 6,046 | 65 |
| 30 to 100 kW | 7 | 0.50 MW | 7 | 0 |
| over 100 kW | 5 | 152.3 MW | 3 | 2 |
How much battery storage capacity was commissioned in Nienburg (Weser) each year?
| Commissioning year | Units | Capacity added |
|---|---|---|
| 2026 | 1,202 | 7.39 MW |
| 2025 | 1,197 | 7.10 MW |
| 2024 | 1,193 | 7.81 MW |
| 2023 | 1,325 | 8.95 MW |
| 2022 | 460 | 2.92 MW |
| 2021 | 349 | 2.00 MW |
| 2020 | 144 | 0.80 MW |
| 2019 | 57 | 0.31 MW |
| 2018 | 33 | 0.14 MW |
| 2017 | 27 | 0.13 MW |
| 2016 | 27 | 0.15 MW |
| 2015 | 32 | 0.18 MW |
| 2014 | 23 | 0.12 MW |
| 2013 | 20 | 0.09 MW |
| 2012 | 4 | 0.03 MW |
How many storage units in Nienburg (Weser) are in operation, planned or decommissioned?
| Status | Units | Capacity |
|---|---|---|
| planned | 67 | 152.0 MW |
| in operation | 6,056 | 38.0 MW |
| permanently decommissioned | 36 | 0.13 MW |
| temporarily shut down | 2 | 0.01 MW |
Which storage units over 100 kW are registered in Nienburg (Weser)?
| Unit | Capacity | Usable capacity | Status | Commissioned | Operator |
|---|---|---|---|---|---|
| Kyon-56 Battery Storage | 146.5 MW | 294.4 MWh | planned | planned 2027 | Kyon-56 Battery Storage GmbH |
| BESS PV-Hassel II | 5.01 MW | 10.0 MWh | planned | planned 2028 | M+S Wind GmbH ＆ Co KG |
| Batteriespeicher | 0.43 MW | 230 kWh | in operation | 2022-01-13 | Schlamann Kalksandsteinwerk GmbH |
| Batteriespeicher | 0.22 MW | 430 kWh | in operation | 2026-06-18 | Frerk Aggregatebau GmbH |
| Speicher 2026 Kläranlage Diepenau | 0.12 MW | 215 kWh | in operation | 2026-09-16 | Samtgemeinde Uchte Abwasserentsorgungsbetrieb |
Which organisations operate the most battery storage capacity in Nienburg (Weser)?
| Operator | Units | Capacity |
|---|---|---|
| Kyon-56 Battery Storage GmbH | 1 | 146.5 MW |
| M+S Wind GmbH ＆ Co KG | 1 | 5.01 MW |
| Schlamann Kalksandsteinwerk GmbH | 1 | 0.43 MW |
| Frerk Aggregatebau GmbH | 1 | 0.22 MW |
| Samtgemeinde Uchte Abwasserentsorgungsbetrieb | 1 | 0.12 MW |
Which technology accounts for the most battery storage capacity in Nienburg (Weser)?
| Technology | Units | Capacity |
|---|---|---|
| Lithium-Batterie | 5 | 152.3 MW |
Battery storage in Niedersachsen · 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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