Valkeakoski (Alpiq)
Operating, 30 MW · 36 MWh, in Valkeakoski, owned by Alpiq. 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 | 30 MW |
| Capacity | 36 MWh |
| Duration | 1.2 hours |
| Status | Operating, as of 2026-02 |
| Owner’s date | October 2025, actual |
| Municipality | Valkeakoski |
| Grid connection | Fingrid grid |
| Placed on the map | at the centre of Valkeakoski, its municipality (GeoNames) |
Who is behind it
| Owner | Alpiq |
| Developer | Merus Power |
| Built by | Merus Power (full delivery, O&M) |
Alpiq (Switzerland). YTJ lists Alpiq Finland Oy (3114085-8) but no source read says it holds this battery.
Not published anywhere we have found: ultimate owner, cells. The page says so rather than guessing.
What the sources say
Alpiq (11 Dec 2025): "In October, Alpiq commissioned its first own BESS (30 MW / Valkeakoski, Finland)". Merus says the first grid-forming storage in commercial use in the Nordics. Fingrid's magazine (25 Mar 2026) says it opened "last autumn".
Evidence and sources
- name: https://news.cision.com/fi/merus-power-oyj/r/sisapiiritieto--merus-powerille-lahes-20-milj…
- owner: https://news.cision.com/fi/merus-power-oyj/r/sisapiiritieto--merus-powerille-lahes-20-milj…
- status: https://www.alpiq.com/newsroom/media-releases/alpiq-expands-its-project-portfolio-for-batt…
From the owners’, developers’ and builders’ own releases, council decisions and permit bulletins, read by Vitreous and checked against the owners’ own words on 12 October 2026; a bracket such as “(Energy-Storage.news only)” in a field means the trade press is still the only source for it. Fingrid publishes no meter, no price and no instruction per battery, so this page carries no money: what one megawatt is paid in Fingrid’s markets is on the markets page, for the whole market and never for a named battery. List id FI-B014.