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Germany · renewables

Battery storage in Schleswig-Flensburg

10,381 storage units with 214.9 MW of gross capacity were in operation in Schleswig-Flensburg (Schleswig-Holstein) as of 2026-11-05, with a further 108 units (148.7 MW) registered as planned (Bundesnetzagentur, Marktstammdatenregister) — every unit over 100 kW with capacity, status, commissioning date and operator, from the Marktstammdatenregister.

Cite: FACTANKER, https://factanker.com/germany-renewables/storage/schleswig-holstein/schleswig-flensburg

Questions this page answers

How many storage units are registered in Schleswig-Flensburg (Schleswig-Holstein), and how large are they, as of 2026-11-05?
10,381 storage units with 214.9 MW of gross capacity were in operation in Schleswig-Flensburg (Schleswig-Holstein) as of 2026-11-05, with a further 108 units (148.7 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 Schleswig-Flensburg?
10,381 storage units with 214.9 MW of gross capacity were in operation in Schleswig-Flensburg as of 2026-11-05, with a further 108 units (148.7 MW) registered as planned; the count includes every registered unit down to home batteries (Bundesnetzagentur, Marktstammdatenregister).
How much battery storage capacity was commissioned in Schleswig-Flensburg in 2025?
2,056 storage units with 116.1 MW went into operation in Schleswig-Flensburg in 2025; the strongest year of the last two decades was 2025 with 116.1 MW (Bundesnetzagentur, Marktstammdatenregister).
What share of Schleswig-Flensburg's storage units are larger than 100 kW?
13 of 10,551 registered storage units in Schleswig-Flensburg (0.1 percent) exceed 100 kW, but they hold 302.9 MW of the 363.8 MW total capacity (Bundesnetzagentur, Marktstammdatenregister).
Which company operates the most battery storage capacity in Schleswig-Flensburg?
ECO POWER ONE GmbH operates 2 storage units over 100 kW with 103.5 MW in Schleswig-Flensburg, the largest organisational operator by registered capacity (Bundesnetzagentur, Marktstammdatenregister).
Which technology has the most battery storage capacity in Schleswig-Flensburg?
Lithium-Batterie leads with 13 storage units and 302.9 MW in Schleswig-Flensburg (Bundesnetzagentur, Marktstammdatenregister).
What is the largest storage unit in Schleswig-Flensburg?
The largest registered storage unit in Schleswig-Flensburg has 103.0 MW of gross capacity and is operated by ECO POWER TWO GmbH, registered as planned (Bundesnetzagentur, Marktstammdatenregister).

How are the storage units in Schleswig-Flensburg distributed by size class?

Size classUnitsCapacityIn operationPlanned
up to 30 kW10,51559.5 MW10,352101
30 to 100 kW231.38 MW230
over 100 kW13302.9 MW67

How much battery storage capacity was commissioned in Schleswig-Flensburg each year?

Commissioning yearUnitsCapacity added
20261,83910.9 MW
20252,056116.1 MW
20242,28516.9 MW
20232,25612.7 MW
20228564.53 MW
20214992.69 MW
20203141.76 MW
20191260.61 MW
20187648.4 MW
2017450.24 MW
2016370.18 MW
2015200.08 MW
2014260.10 MW
201320.01 MW
201220.01 MW
201110.00 MW
200910.01 MW

How many storage units in Schleswig-Flensburg are in operation, planned or decommissioned?

StatusUnitsCapacity
in operation10,381214.9 MW
planned108148.7 MW
permanently decommissioned600.18 MW
temporarily shut down20.00 MW

Which storage units over 100 kW are registered in Schleswig-Flensburg?

UnitCapacityUsable capacityStatusCommissionedOperator
ECO POWER TWO103.0 MW200.0 MWhplannedplanned 2026ECO POWER TWO GmbH
ECO POWER ONE CD51.8 MW119.3 MWhin operation2025-03-13ECO POWER ONE GmbH
ECO POWER ONE AB51.8 MW119.3 MWhin operation2025-03-13ECO POWER ONE GmbH
BESS Jardelund48.0 MW48.0 MWhin operation2018-04-01EnspireME
Kyon-100 Battery Storage20.0 MW46.2 MWhplannedplanned 2026Kyon-100 Battery Storage GmbH
Batteriespeicher Jagel10.1 MW20.1 MWhplannedplanned 2026WWS Invest 2 GmbH & Co. KG
BESS Eggebek5.25 MW14.5 MWhplannedplanned 2026Energreen SH GmbH & Co.KG
BESS Solarpark Kropp5.00 MW10.0 MWhplannedplanned 2026Solarpark Kropp GmbH & Co. KG
EGS Nordwall-Speicher3.20 MW6.7 MWhplannedplanned 2027EGS Nordwall-Solar GmbH & Co. KG
Speicher Oeversee3.00 MW8.0 MWhin operation2024-12-12Sonnenenergie Osterhof 37 GmbH & Co. KG
Batteriespeicher Sonnenwende Busdorf1.50 MW3.9 MWhplannedplanned 2026reon AG
Speicher Barderup 20260.23 MW225 kWhin operation2026-10-20Kiesbye GbR
Moltkestraße Parkhaus0.15 MW152 kWhin operation2025-03-12GEWOBA Nord

Which organisations operate the most battery storage capacity in Schleswig-Flensburg?

OperatorUnitsCapacity
ECO POWER ONE GmbH2103.5 MW
ECO POWER TWO GmbH1103.0 MW
EnspireME148.0 MW
Kyon-100 Battery Storage GmbH120.0 MW
WWS Invest 2 GmbH & Co. KG110.1 MW
Energreen SH GmbH & Co.KG15.25 MW
Solarpark Kropp GmbH & Co. KG15.00 MW
EGS Nordwall-Solar GmbH & Co. KG13.20 MW
Sonnenenergie Osterhof 37 GmbH & Co. KG13.00 MW
reon AG11.50 MW

Which technology accounts for the most battery storage capacity in Schleswig-Flensburg?

TechnologyUnitsCapacity
Lithium-Batterie13302.9 MW

Battery storage in Schleswig-Holstein · 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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