Lohja solar park storage (Helen)
Being built, 0 MW, in Lohja, owned by Helen. 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
| Status | Being built, as of 2 December 2025 |
| Municipality | Lohja |
| Placed on the map | at the centre of Lohja, its municipality (GeoNames) |
Who is behind it
| Owner | Helen |
| Business ID | 2630573-4 |
YTJ, by exact name: Helen Oy. https://avoindata.prh.fi/opendata-ytj-api/v3/companies?businessId=2630573-4
Not published anywhere we have found: ultimate owner, developer, built by, cells. The page says so rather than guessing.
What the sources say
Helen (2024) says it is "of similar size" to its 5 MW Lakiakangas unit; no figure given, so MW is left blank.
Evidence and sources
- name: https://www.helen.fi/en/news/2024/Helen-to-improve-the-flexibility-of-the-electricity-syst…
- status: https://www.helen.fi/en/news/2024/Helen-to-improve-the-flexibility-of-the-electricity-syst…
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-B039.