Since 10 October 2026: 4 batteries entered, 35 MW, 1 left, 14 other changes.
The Bundesnetzagentur publishes the whole Marktstammdatenregister as a daily export. It is read once a week for the storage units of a megawatt or more, every export is kept, and the difference printed, unit by unit. Nothing here is inferred from the numbers; it is one capture against the one before, identifier by identifier. The column headed "our reading" is a rule, and it can be wrong.
By month
| Month | Entered | MW entered | Left | Other changes | Respelt or refiled |
|---|---|---|---|---|---|
| October 2026 | 4 | 35 | 1 | 14 | · |
Where this can be wrong
The register is filled in by operators and checked by grid operators, so an entry can change because an operator corrected it, because the grid operator did, or because the plant changed; the register does not say which, and the "grid operator check" column is the nearest thing to a signal. A unit that falls below a megawatt leaves this ledger without leaving the register. The first export is a baseline, not a report.
The Marktstammdatenregister, batteries of a megawatt and up
A unit enters when it is registered at a megawatt or more and leaves when it is deleted from the register or falls below a megawatt; the export is read weekly, and a planned unit becoming an operating one shows as a change of status. 2 captures held, 10 October 2026 to 15 October 2026.
15 October 2026, against 10 October 2026
19 changes.
| Battery | What changed | From | To | MW | Our reading |
|---|---|---|---|---|---|
| UW_Visbek SEE943914294755 | entered | · | · | 15 | new to this list |
| green flexibility BESS Ettringen gmbh SEE959904987606 | entered | · | · | 10 | new to this list |
| ACDC ZW8 SEE926242887332 | entered | · | · | 5 | new to this list |
| BESS UW Vierlinden SEE966521903452 | entered | · | · | 5 | new to this list |
| Speicher Kühbach IV - P24-064 SEE997803743657 | left | · | · | 3.4 | gone from this list |
| BESS Strübbel SEE963514247548 | grid operator check | under check | checked | 50 | changed |
| BESS UW Heessen SEE978423585698 | planned date | 2026-09-30 | 2026-10-23 | 16 | changed |
| Pfaffenklinge Speicher SEE912580321386 | grid operator check | checked | under check | 8.8 | changed |
| Speicher Beilrode I - Teilanlage 5 SEE939346315557 | net power, MW | 6.2 | 5.6 | 5.6 | down by 0.6 |
| Batteriespeicher-Buch SEE917146636904 | grid operator check | under check | checked | 5 | changed |
| Batteriespeicher SEE933255558609 | planned date | 2026-09-17 | 2026-11-05 | 4.8 | changed |
| MM9 - Speicher - Parey SEE919126258380 | grid operator check | under check | checked | 3.5 | changed |
| Theilheim Speicher BA III Ino SEE950334441102 | net power, MW | 3.0 | 3.1 | 3.1 | up by 0.1 |
| Theilheim Speicher BA III Ino SEE950334441102 | planned date | 2025-08-18 | 2026-10-19 | 3.1 | changed |
| BESS Sinzing SEE921014163461 | net power, MW | 3.4 | 3.0 | 3 | down by 0.4 |
| BESS Sinzing SEE921014163461 | grid operator check | under check | checked | 3 | changed |
| Batteriespeicher 2 SEE942088999749 | planned date | 2026-09-01 | 2026-12-30 | 2 | changed |
| Speicher Riesa Trst. Fertigung BA 4 SEE988302497264 | planned date | 2026-10-31 | 2026-11-27 | 1.1 | changed |
| Batteriespeicher I-Kubus Quedlinburg SEE911894016032 | grid operator check | under check | checked | 1 | changed |