Söderskogen wind farm BESS (wpd)
Being built, 30 MW · 60 MWh, in Vöyri, owned by wpd Söderskogen Vindpark Oy. 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 | 60 MWh |
| Duration | 2.0 hours |
| Status | Being built, as of 18 October 2026 |
| Owner’s date | 2027 summer, expected |
| Municipality | Vöyri |
| Grid connection | New substation on the 110 kV Toby–Lotlax line |
| Placed on the map | at the centre of Vöyri, its municipality (GeoNames) |
Who is behind it
| Owner | wpd Söderskogen Vindpark Oy |
| Built by | Merus Power |
| Business ID | 2999789-5 |
YTJ, by exact name: wpd Söderskogen Vindpark Oy. https://avoindata.prh.fi/opendata-ytj-api/v3/companies?businessId=2999789-5
Not published anywhere we have found: ultimate owner, developer, cells. The page says so rather than guessing.
What the sources say
Merus insider information (16 Jun 2026): 30 MW / 60 MWh, commercial use from summer 2027. Municipality from Merus's half-year report. CORRECTED 18 Oct 2026: was "planned". wpd's project page (read 18 Oct 2026): "Rakennustyöt käynnistyivät toukokuussa 2026"; substation this autumn, the battery plant at the turn of the year, ready and connected in summer 2027; 12 containers from Merus Power; built by wpd Construction Finland Oy.
Evidence and sources
- name: inderes.fi/releases/merus-power-plcs-half-year-report-janu…
- owner: sttinfo.fi/announcement/72142246
- status: sttinfo.fi/announcement/72142246
- grid connection: wpd.fi/projects/soderskogen
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-B055.