Germany · renewables
Battery storage in Viersen
13,038 storage units with 81.4 MW of gross capacity were in operation in Viersen (Nordrhein-Westfalen) as of 2026-11-05, with a further 135 units (3.48 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 Viersen (Nordrhein-Westfalen), and how large are they, as of 2026-11-05?
- 13,038 storage units with 81.4 MW of gross capacity were in operation in Viersen (Nordrhein-Westfalen) as of 2026-11-05, with a further 135 units (3.48 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 Viersen?
- 13,038 storage units with 81.4 MW of gross capacity were in operation in Viersen as of 2026-11-05, with a further 135 units (3.48 MW) registered as planned; the count includes every registered unit down to home batteries (Bundesnetzagentur, Marktstammdatenregister).
- How much battery storage capacity was commissioned in Viersen in 2025?
- 2,813 storage units with 16.2 MW went into operation in Viersen in 2025; the strongest year of the last two decades was 2023 with 19.7 MW (Bundesnetzagentur, Marktstammdatenregister).
- What share of Viersen's storage units are larger than 100 kW?
- 4 of 13,239 registered storage units in Viersen (0.0 percent) exceed 100 kW, but they hold 3.12 MW of the 85.0 MW total capacity (Bundesnetzagentur, Marktstammdatenregister).
- Which company operates the most battery storage capacity in Viersen?
- Stadtwerke Kempen GmbH operates 1 storage units over 100 kW with 2.50 MW in Viersen, the largest organisational operator by registered capacity (Bundesnetzagentur, Marktstammdatenregister).
- Which technology has the most battery storage capacity in Viersen?
- Lithium-Batterie leads with 4 storage units and 3.12 MW in Viersen (Bundesnetzagentur, Marktstammdatenregister).
- What is the largest storage unit in Viersen?
- The largest registered storage unit in Viersen has 2.50 MW of gross capacity and is operated by Stadtwerke Kempen GmbH, registered as planned (Bundesnetzagentur, Marktstammdatenregister).
How are the storage units in Viersen distributed by size class?
| Size class | Units | Capacity | In operation | Planned |
|---|---|---|---|---|
| up to 30 kW | 13,208 | 80.4 MW | 13,008 | 134 |
| 30 to 100 kW | 27 | 1.48 MW | 27 | 0 |
| over 100 kW | 4 | 3.12 MW | 3 | 1 |
How much battery storage capacity was commissioned in Viersen each year?
| Commissioning year | Units | Capacity added |
|---|---|---|
| 2026 | 2,924 | 16.5 MW |
| 2025 | 2,813 | 16.2 MW |
| 2024 | 2,542 | 17.3 MW |
| 2023 | 2,804 | 19.7 MW |
| 2022 | 941 | 5.73 MW |
| 2021 | 524 | 3.16 MW |
| 2020 | 292 | 1.64 MW |
| 2019 | 123 | 0.63 MW |
| 2018 | 57 | 0.36 MW |
| 2017 | 28 | 0.13 MW |
| 2016 | 14 | 0.07 MW |
| 2015 | 7 | 0.03 MW |
| 2014 | 14 | 0.07 MW |
| 2013 | 11 | 0.05 MW |
| 2012 | 2 | 0.01 MW |
| 2011 | 3 | 0.01 MW |
| 2010 | 1 | 0.00 MW |
How many storage units in Viersen are in operation, planned or decommissioned?
| Status | Units | Capacity |
|---|---|---|
| in operation | 13,038 | 81.4 MW |
| planned | 135 | 3.48 MW |
| permanently decommissioned | 64 | 0.19 MW |
| temporarily shut down | 2 | 0.00 MW |
Which storage units over 100 kW are registered in Viersen?
| Unit | Capacity | Usable capacity | Status | Commissioned | Operator |
|---|---|---|---|---|---|
| HKW - Batteriespeicher | 2.50 MW | 5.0 MWh | planned | planned 2026 | Stadtwerke Kempen GmbH |
| Kluth Batteriespeicher | 0.35 MW | 398 kWh | in operation | 2025-11-28 | GreenRock International GmbH |
| SVA FZ Viersen Batterie | 0.15 MW | 216 kWh | in operation | 2026-07-31 | Kreis Viersen - Der Landrat |
| PV Anlage Bürdestr. | 0.12 MW | 104 kWh | in operation | 2024-08-13 | Schiffer |
Which organisations operate the most battery storage capacity in Viersen?
| Operator | Units | Capacity |
|---|---|---|
| Stadtwerke Kempen GmbH | 1 | 2.50 MW |
| GreenRock International GmbH | 1 | 0.35 MW |
| Kreis Viersen - Der Landrat | 1 | 0.15 MW |
| Schiffer | 1 | 0.12 MW |
Which technology accounts for the most battery storage capacity in Viersen?
| Technology | Units | Capacity |
|---|---|---|
| Lithium-Batterie | 4 | 3.12 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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