The Netherlands · the named batteries
EOS Volans (phase 1)
Operating, 20 MW · 40 MWh, in Neeltje Jans, owned by E-Connection. 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 | 20 MW |
| Capacity | 40 MWh |
| Duration | 2.0 hours |
| Status | Operating, as of 20 October 2026 |
| Stated date | May 2026, phase 1 delivered, fully operational |
| Municipality | Neeltje Jans, Zeeland |
| Grid connection | OSKneT closed distribution system; private 150 kV wind hub; E-Connection wind hub Neeltje Jans |
| Placed on the map | not placed: Neeltje Jans is not in GeoNames |
| How sure | A dated source confirms it |
Who is behind it
| Owner | E-Connection |
| Built by | Alfen (full EPC) |
Not published anywhere we have found: traded by.
What the sources say
Described as phase 1, so later phases are implied but not sized.
Evidence and sources
- source: alfen.com/en/news/strengthening-the-grid-with-wind-and-ba…
- source: solarmagazine.nl/nieuws-zonne-energie/i43755/alfen-levert-batter…
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-B15.