The Netherlands · the named batteries
GIGA Leopard
Being built, 300 MW · 1,200 MWh, in Delfzijl, owned by GIGA Storage (InfraVia majority shareholder). Every fact below is as a published source states it, with the address beside it; a field not shown is one no source gave, and nothing is guessed.
The battery
| Power | 300 MW |
| Capacity | 1,200 MWh |
| Duration | 4.0 hours |
| Status | Being built, as of 20 October 2026 |
| Stated date | 2027, H2 2027 |
| Municipality | Delfzijl, Eemsdelta, Groningen |
| Grid connection | TenneT HV via existing site substation; time-dependent transport right (TDTR); former Aldel site substation |
| Placed on the map | at the site itself, as mapped on OpenStreetMap (Leopard) |
| How sure | A dated source confirms it |
Who is behind it
| Owner | GIGA Storage (InfraVia majority shareholder) |
| Traded by | Vattenfall (tolls 100 MW / 400 MWh) |
Not published anywhere we have found: built by.
What the sources say
Vattenfall's 26 January 2026 article states 100 MW / 400 MWh, which is the tolled share, not the project size. An April 2023 article said '>1 GWh, about three years to build' (around 2026).
Evidence and sources
- source: infraviacapital.com/wp-content/uploads/2025/06/20250602-InfraVia-x-…
- source: ess-news.com/2025/06/05/giga-storage-starts-building-1-2-gwh…
- source: ioplus.nl/en/posts/vattenfall-and-giga-storage-make-progr…
- position: openstreetmap.org/way/684875556
From the owners’, developers’ and builders’ own releases, grid operators’ and permit notices and the trade press, read by Vitreous. No Dutch body publishes a meter, an instruction or a payment for a named battery, so this page carries none. List id NL-B30.