Germany · renewables
Battery storage in Köln
13,827 storage units with 83.5 MW of gross capacity were in operation in Köln (Nordrhein-Westfalen) as of 2026-11-05, with a further 276 units (2.54 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 Köln (Nordrhein-Westfalen), and how large are they, as of 2026-11-05?
- 13,827 storage units with 83.5 MW of gross capacity were in operation in Köln (Nordrhein-Westfalen) as of 2026-11-05, with a further 276 units (2.54 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 Köln?
- 13,827 storage units with 83.5 MW of gross capacity were in operation in Köln as of 2026-11-05, with a further 276 units (2.54 MW) registered as planned; the count includes every registered unit down to home batteries (Bundesnetzagentur, Marktstammdatenregister).
- How much battery storage capacity was commissioned in Köln in 2025?
- 2,879 storage units with 16.0 MW went into operation in Köln in 2025; the strongest year of the last two decades was 2023 with 19.3 MW (Bundesnetzagentur, Marktstammdatenregister).
- What share of Köln's storage units are larger than 100 kW?
- 8 of 14,169 registered storage units in Köln (0.1 percent) exceed 100 kW, but they hold 1.99 MW of the 86.3 MW total capacity (Bundesnetzagentur, Marktstammdatenregister).
- Which company operates the most battery storage capacity in Köln?
- RheinEnergie AG operates 1 storage units over 100 kW with 0.50 MW in Köln, the largest organisational operator by registered capacity (Bundesnetzagentur, Marktstammdatenregister).
- Which technology has the most battery storage capacity in Köln?
- Lithium-Batterie leads with 6 storage units and 1.64 MW in Köln (Bundesnetzagentur, Marktstammdatenregister).
- What is the largest storage unit in Köln?
- The largest registered storage unit in Köln has 0.50 MW of gross capacity and is operated by RheinEnergie AG, commissioned 2021-09-30 (Bundesnetzagentur, Marktstammdatenregister).
How are the storage units in Köln distributed by size class?
| Size class | Units | Capacity | In operation | Planned |
|---|---|---|---|---|
| up to 30 kW | 14,131 | 82.4 MW | 13,794 | 271 |
| 30 to 100 kW | 30 | 1.90 MW | 26 | 4 |
| over 100 kW | 8 | 1.99 MW | 7 | 1 |
How much battery storage capacity was commissioned in Köln each year?
| Commissioning year | Units | Capacity added |
|---|---|---|
| 2026 | 3,278 | 18.5 MW |
| 2025 | 2,879 | 16.0 MW |
| 2024 | 2,794 | 18.4 MW |
| 2023 | 3,066 | 19.3 MW |
| 2022 | 818 | 4.99 MW |
| 2021 | 486 | 3.31 MW |
| 2020 | 275 | 1.37 MW |
| 2019 | 127 | 0.57 MW |
| 2018 | 63 | 0.36 MW |
| 2017 | 44 | 0.18 MW |
| 2016 | 26 | 0.10 MW |
| 2015 | 10 | 0.39 MW |
| 2014 | 13 | 0.08 MW |
| 2013 | 6 | 0.04 MW |
| 2012 | 1 | 0.01 MW |
| 2011 | 1 | 0.01 MW |
| 2010 | 2 | 0.01 MW |
| 2007 | 1 | 0.01 MW |
How many storage units in Köln are in operation, planned or decommissioned?
| Status | Units | Capacity |
|---|---|---|
| in operation | 13,827 | 83.5 MW |
| planned | 276 | 2.54 MW |
| permanently decommissioned | 57 | 0.22 MW |
| temporarily shut down | 9 | 0.03 MW |
Which storage units over 100 kW are registered in Köln?
| Unit | Capacity | Usable capacity | Status | Commissioned | Operator |
|---|---|---|---|---|---|
| MuLI-Batteriespeicher | 0.50 MW | 255 kWh | in operation | 2021-09-30 | RheinEnergie AG |
| PV Ladepark Heinrichshof | 0.46 MW | 495 kWh | in operation | 2024-10-23 | Frenger GbR Energie |
| LOG25 BESS | 0.25 MW | 500 kWh | planned | planned 2026 | Zeppelin Rental |
| Köln - Gummersbacher Str. 31b | 0.20 MW | 216 kWh | in operation | 2021-10-20 | Voltaro Power GmbH & Co. KG |
| K-Aachener300, Batterie USV 1 - RZ | 0.18 MW | 200 kWh | in operation | 2015-06-01 | ERGO Group AG z.H. Mike Belz |
| K-Aachener300, Batterie USV 2 - RZ | 0.18 MW | 200 kWh | in operation | 2015-06-01 | ERGO Group AG z.H. Mike Belz |
| Bild- und Tonfabrik_Speicher | 0.12 MW | 307 kWh | in operation | 2022-10-13 | btf GmbH |
| PV-Speicher | 0.11 MW | 241 kWh | in operation | 2026-06-26 | Autohaus Schmitz Holding GmbH |
Which organisations operate the most battery storage capacity in Köln?
| Operator | Units | Capacity |
|---|---|---|
| RheinEnergie AG | 1 | 0.50 MW |
| Frenger GbR Energie | 1 | 0.46 MW |
| ERGO Group AG z.H. Mike Belz | 2 | 0.35 MW |
| Zeppelin Rental | 1 | 0.25 MW |
| Voltaro Power GmbH & Co. KG | 1 | 0.20 MW |
| btf GmbH | 1 | 0.12 MW |
| Autohaus Schmitz Holding GmbH | 1 | 0.11 MW |
Which technology accounts for the most battery storage capacity in Köln?
| Technology | Units | Capacity |
|---|---|---|
| Lithium-Batterie | 6 | 1.64 MW |
| Blei-Batterie | 2 | 0.35 MW |
Battery storage in Nordrhein-Westfalen · 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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