Germany · renewables
Battery storage in Heidelberg
1,818 storage units with 10.3 MW of gross capacity were in operation in Heidelberg (Baden-Württemberg) as of 2026-11-05, with a further 19 units (0.14 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 Heidelberg (Baden-Württemberg), and how large are they, as of 2026-11-05?
- 1,818 storage units with 10.3 MW of gross capacity were in operation in Heidelberg (Baden-Württemberg) as of 2026-11-05, with a further 19 units (0.14 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 Heidelberg?
- 1,818 storage units with 10.3 MW of gross capacity were in operation in Heidelberg as of 2026-11-05, with a further 19 units (0.14 MW) registered as planned; the count includes every registered unit down to home batteries (Bundesnetzagentur, Marktstammdatenregister).
- How much battery storage capacity was commissioned in Heidelberg in 2025?
- 421 storage units with 2.25 MW went into operation in Heidelberg in 2025; the strongest year of the last two decades was 2024 with 2.46 MW (Bundesnetzagentur, Marktstammdatenregister).
How are the storage units in Heidelberg distributed by size class?
| Size class | Units | Capacity | In operation | Planned |
|---|---|---|---|---|
| up to 30 kW | 1,843 | 10.2 MW | 1,814 | 19 |
| 30 to 100 kW | 4 | 0.27 MW | 4 | 0 |
How much battery storage capacity was commissioned in Heidelberg each year?
| Commissioning year | Units | Capacity added |
|---|---|---|
| 2026 | 388 | 2.04 MW |
| 2025 | 421 | 2.25 MW |
| 2024 | 421 | 2.46 MW |
| 2023 | 315 | 1.99 MW |
| 2022 | 108 | 0.74 MW |
| 2021 | 50 | 0.29 MW |
| 2020 | 51 | 0.26 MW |
| 2019 | 41 | 0.16 MW |
| 2018 | 11 | 0.06 MW |
| 2017 | 7 | 0.02 MW |
| 2016 | 7 | 0.02 MW |
| 2015 | 5 | 0.03 MW |
| 2014 | 2 | 0.01 MW |
| 2013 | 1 | 0.03 MW |
How many storage units in Heidelberg are in operation, planned or decommissioned?
| Status | Units | Capacity |
|---|---|---|
| in operation | 1,818 | 10.3 MW |
| planned | 19 | 0.14 MW |
| permanently decommissioned | 7 | 0.02 MW |
| temporarily shut down | 3 | 0.00 MW |
Which storage units over 100 kW are registered in Heidelberg?
| Unit | Capacity | Usable capacity | Status | Commissioned | Operator |
|---|
Which organisations operate the most battery storage capacity in Heidelberg?
| Operator | Units | Capacity |
|---|
Which technology accounts for the most battery storage capacity in Heidelberg?
| Technology | Units | Capacity |
|---|
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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