Germany · renewables
Battery storage in Calw
8,191 storage units with 49.8 MW of gross capacity were in operation in Calw (Baden-Württemberg) as of 2026-11-05, with a further 46 units (0.50 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 Calw (Baden-Württemberg), and how large are they, as of 2026-11-05?
- 8,191 storage units with 49.8 MW of gross capacity were in operation in Calw (Baden-Württemberg) as of 2026-11-05, with a further 46 units (0.50 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 Calw?
- 8,191 storage units with 49.8 MW of gross capacity were in operation in Calw as of 2026-11-05, with a further 46 units (0.50 MW) registered as planned; the count includes every registered unit down to home batteries (Bundesnetzagentur, Marktstammdatenregister).
- How much battery storage capacity was commissioned in Calw in 2025?
- 1,477 storage units with 9.59 MW went into operation in Calw in 2025; the strongest year of the last two decades was 2023 with 10.2 MW (Bundesnetzagentur, Marktstammdatenregister).
- What share of Calw's storage units are larger than 100 kW?
- 4 of 8,292 registered storage units in Calw (0.0 percent) exceed 100 kW, but they hold 1.05 MW of the 50.5 MW total capacity (Bundesnetzagentur, Marktstammdatenregister).
- Which company operates the most battery storage capacity in Calw?
- TWIN-TEC Packaging GmbH operates 1 storage units over 100 kW with 0.70 MW in Calw, the largest organisational operator by registered capacity (Bundesnetzagentur, Marktstammdatenregister).
- Which technology has the most battery storage capacity in Calw?
- Lithium-Batterie leads with 4 storage units and 1.05 MW in Calw (Bundesnetzagentur, Marktstammdatenregister).
- What is the largest storage unit in Calw?
- The largest registered storage unit in Calw has 0.70 MW of gross capacity and is operated by TWIN-TEC Packaging GmbH, commissioned 2025-12-01 (Bundesnetzagentur, Marktstammdatenregister).
How are the storage units in Calw distributed by size class?
| Size class | Units | Capacity | In operation | Planned |
|---|---|---|---|---|
| up to 30 kW | 8,274 | 48.6 MW | 8,176 | 43 |
| 30 to 100 kW | 14 | 0.87 MW | 12 | 2 |
| over 100 kW | 4 | 1.05 MW | 3 | 1 |
How much battery storage capacity was commissioned in Calw each year?
| Commissioning year | Units | Capacity added |
|---|---|---|
| 2026 | 1,438 | 9.21 MW |
| 2025 | 1,477 | 9.59 MW |
| 2024 | 1,508 | 9.93 MW |
| 2023 | 1,608 | 10.2 MW |
| 2022 | 691 | 3.77 MW |
| 2021 | 555 | 2.85 MW |
| 2020 | 383 | 1.82 MW |
| 2019 | 226 | 1.07 MW |
| 2018 | 107 | 0.45 MW |
| 2017 | 87 | 0.37 MW |
| 2016 | 83 | 0.34 MW |
| 2015 | 50 | 0.23 MW |
| 2014 | 24 | 0.14 MW |
| 2013 | 8 | 0.04 MW |
How many storage units in Calw are in operation, planned or decommissioned?
| Status | Units | Capacity |
|---|---|---|
| in operation | 8,191 | 49.8 MW |
| planned | 46 | 0.50 MW |
| permanently decommissioned | 54 | 0.20 MW |
| temporarily shut down | 1 | 0.00 MW |
Which storage units over 100 kW are registered in Calw?
| Unit | Capacity | Usable capacity | Status | Commissioned | Operator |
|---|---|---|---|---|---|
| Batteriespeicher (24038 P) | 0.70 MW | 853 kWh | in operation | 2025-12-01 | TWIN-TEC Packaging GmbH |
| Outood_Speicher | 0.12 MW | 261 kWh | in operation | 2026-07-08 | Firma Elsner Elektronik GmbH Markus Kalmbach |
| unit operated by a private individual | 0.12 MW | 240 kWh | planned | planned 2025 | private individual |
| Stromspeicher Sungrow/SG 110 KW | 0.11 MW | 225 kWh | in operation | 2026-10-13 | Lehre GmbH ＆ Grundstückverpachtungen KG |
Which organisations operate the most battery storage capacity in Calw?
| Operator | Units | Capacity |
|---|---|---|
| TWIN-TEC Packaging GmbH | 1 | 0.70 MW |
| Firma Elsner Elektronik GmbH Markus Kalmbach | 1 | 0.12 MW |
| Lehre GmbH ＆ Grundstückverpachtungen KG | 1 | 0.11 MW |
Which technology accounts for the most battery storage capacity in Calw?
| Technology | Units | Capacity |
|---|---|---|
| Lithium-Batterie | 4 | 1.05 MW |
Battery storage in Baden-Württemberg · 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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