Germany · renewables
Battery storage in Leer
8,742 storage units with 69.2 MW of gross capacity were in operation in Leer (Niedersachsen) as of 2026-11-05, with a further 105 units (17.5 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 Leer (Niedersachsen), and how large are they, as of 2026-11-05?
- 8,742 storage units with 69.2 MW of gross capacity were in operation in Leer (Niedersachsen) as of 2026-11-05, with a further 105 units (17.5 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 Leer?
- 8,742 storage units with 69.2 MW of gross capacity were in operation in Leer as of 2026-11-05, with a further 105 units (17.5 MW) registered as planned; the count includes every registered unit down to home batteries (Bundesnetzagentur, Marktstammdatenregister).
- How much battery storage capacity was commissioned in Leer in 2025?
- 1,825 storage units with 10.2 MW went into operation in Leer in 2025; the strongest year of the last two decades was 2023 with 12.3 MW (Bundesnetzagentur, Marktstammdatenregister).
- What share of Leer's storage units are larger than 100 kW?
- 9 of 8,917 registered storage units in Leer (0.1 percent) exceed 100 kW, but they hold 36.9 MW of the 86.9 MW total capacity (Bundesnetzagentur, Marktstammdatenregister).
- Which company operates the most battery storage capacity in Leer?
- Voltuna Leer Nord GmbH operates 1 storage units over 100 kW with 15.4 MW in Leer, the largest organisational operator by registered capacity (Bundesnetzagentur, Marktstammdatenregister).
- Which technology has the most battery storage capacity in Leer?
- Lithium-Batterie leads with 7 storage units and 32.5 MW in Leer (Bundesnetzagentur, Marktstammdatenregister).
- What is the largest storage unit in Leer?
- The largest registered storage unit in Leer has 15.4 MW of gross capacity and is operated by Voltuna Leer Nord GmbH, commissioned 2026-04-15 (Bundesnetzagentur, Marktstammdatenregister).
How are the storage units in Leer distributed by size class?
| Size class | Units | Capacity | In operation | Planned |
|---|---|---|---|---|
| up to 30 kW | 8,894 | 49.3 MW | 8,724 | 100 |
| 30 to 100 kW | 14 | 0.74 MW | 14 | 0 |
| over 100 kW | 9 | 36.9 MW | 4 | 5 |
How much battery storage capacity was commissioned in Leer each year?
| Commissioning year | Units | Capacity added |
|---|---|---|
| 2026 | 1,797 | 29.5 MW |
| 2025 | 1,825 | 10.2 MW |
| 2024 | 1,641 | 10.6 MW |
| 2023 | 2,158 | 12.3 MW |
| 2022 | 684 | 3.57 MW |
| 2021 | 341 | 1.60 MW |
| 2020 | 146 | 0.71 MW |
| 2019 | 78 | 0.29 MW |
| 2018 | 41 | 0.17 MW |
| 2017 | 33 | 0.14 MW |
| 2016 | 18 | 0.08 MW |
| 2015 | 11 | 0.05 MW |
| 2014 | 13 | 0.06 MW |
| 2013 | 16 | 0.09 MW |
| 2012 | 7 | 0.03 MW |
| 2010 | 2 | 0.01 MW |
| 2007 | 1 | 0.00 MW |
How many storage units in Leer are in operation, planned or decommissioned?
| Status | Units | Capacity |
|---|---|---|
| in operation | 8,742 | 69.2 MW |
| planned | 105 | 17.5 MW |
| permanently decommissioned | 69 | 0.21 MW |
| temporarily shut down | 1 | 0.00 MW |
Which storage units over 100 kW are registered in Leer?
| Unit | Capacity | Usable capacity | Status | Commissioned | Operator |
|---|---|---|---|---|---|
| BESS Leer Nord | 15.4 MW | 31.3 MWh | in operation | 2026-04-15 | Voltuna Leer Nord GmbH |
| Brinkum 1 Speicher | 6.80 MW | 13.6 MWh | planned | planned 2026 | ENERPARC Solar Invest 230 TU 7 GmbH ＆ Co. KG |
| BESS Leer | 3.84 MW | 8.9 MWh | in operation | 2026-03-25 | CS Leer GmbH |
| unit operated by a private individual | 3.60 MW | 4 kWh | planned | planned 2026 | private individual |
| Solarpark Leer | 2.40 MW | 4.8 MWh | planned | planned 2025 | Voltuna Energiesysteme GmbH |
| Speicher | 2.00 MW | 4.0 MWh | planned | planned 2027 | Vikings Energys GmbH ＆ Co. KG |
| BESS Nüttermoor GC Dev | 1.93 MW | 3.9 MWh | planned | planned 2028 | AS Energy 18 GmbH ＆ Co. KG |
| Batteriespeicher | 0.74 MW | 1.3 MWh | in operation | 2024-09-14 | Nanno Janssen GmbH |
| Batteriespeicher | 0.20 MW | 277 kWh | in operation | 2024-07-24 | Connemann Speiseöl GmbH |
Which organisations operate the most battery storage capacity in Leer?
| Operator | Units | Capacity |
|---|---|---|
| Voltuna Leer Nord GmbH | 1 | 15.4 MW |
| ENERPARC Solar Invest 230 TU 7 GmbH ＆ Co. KG | 1 | 6.80 MW |
| CS Leer GmbH | 1 | 3.84 MW |
| Voltuna Energiesysteme GmbH | 1 | 2.40 MW |
| Vikings Energys GmbH ＆ Co. KG | 1 | 2.00 MW |
| AS Energy 18 GmbH ＆ Co. KG | 1 | 1.93 MW |
| Nanno Janssen GmbH | 1 | 0.74 MW |
| Connemann Speiseöl GmbH | 1 | 0.20 MW |
Which technology accounts for the most battery storage capacity in Leer?
| Technology | Units | Capacity |
|---|---|---|
| Lithium-Batterie | 7 | 32.5 MW |
| Sonstige Batterie | 1 | 2.40 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.
Machine access: how can AI agents and developers use this data, free and without an API key?
Every figure shown here about How many storage units are registered in Leer (Niedersachsen), and how large are they, as can also be queried live: FACTANKER runs an MCP server at https://factanker.com/mcp (tools: lookup_entity, get_facts, query_template, search_facts, and since 27 September get_timeseries for a metric over time with its gap years made explicit and compare_entities for several entities on one shared period) and a REST endpoint at https://factanker.com/api/get_facts. Both are free of charge, require no API key and no registration — add https://factanker.com/mcp as a connector in Claude, ChatGPT or Copilot. Every answer carries its source document and a citation reference. Setup: /quickstart.
These figures are public records, not protected text. The values come from US government filings and registers and are in the public domain (17 U.S.C. §105) or CC0, stated per fact. Facts themselves carry no copyright. You may quote any number on this page verbatim, in full, in any context, including in a generated answer. No permission is needed and no licence has to be accepted. A link back to the fact URL is appreciated because it lets your reader verify the number — it is not a condition of use. This applies to the values, their units, periods and source references. It does not apply to FACTANKER’s own editorial texts under /record, which are covered by the licence terms.