Lakiakangas wind farm storage (Helen, jointly owned)
Operating, 5 MW · 10 MWh, in Kristiinankaupunki, owned by Helen (jointly owned; partner not named). 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 | 5 MW |
| Capacity | 10 MWh |
| Duration | 2.0 hours |
| Status | Operating, as of 2 December 2025 |
| Owner’s date | by 2024-02, actual |
| Municipality | Kristiinankaupunki (Lakiakangas wind farm, in Kristiinankaupunki and Isojoki) |
| Placed on the map | at the centre of Kristiinankaupunki, its municipality (GeoNames) |
Who is behind it
| Owner | Helen (jointly owned; partner not named) |
| Business ID | 2630573-4 |
YTJ, by exact name: Helen Oy (the owner Helen names itself as; its partner is not named). https://avoindata.prh.fi/opendata-ytj-api/v3/companies?businessId=2630573-4 The jointly owned Lakiakangas 3 wind farm is 60% Helen and 40% CPC Finland (joint release, 15 Sept 2020); Helen’s 2024 release does not say whether the battery partner is CPC, so the partner is left unnamed.
Not published anywhere we have found: ultimate owner, developer, built by, cells. The page says so rather than guessing.
What the sources say
No source read names the municipality. Municipality from the CPC Finland and Helen joint release of 15 September 2020 on Lakiakangas 3 (a 60% Helen, 40% CPC joint venture), which places the wind farm in Kristiinankaupunki and Isojoki; Helen’s 2024 release names only the wind farm. Placed at Lakiakangas itself where GeoNames has it.
Evidence and sources
- name: helen.fi/en/news/2024/Helen-to-improve-the-flexibility-o…
- municipality: renewable-energy-industry.com/news/press-releases/pm-6794-cpc-finland-helen-s…
- power: helen.fi/en/news/2024/Helen-to-improve-the-flexibility-o…
- capacity: helen.fi/en/news/2025/one-of-finlands-largest-electricit…
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-B003.