Finland · the named batteries

Isokangas (Eco Stor)

Being built, 50 MW · 50 MWh, owned by Å Energi (majority), with Farvatn Capital and Eco-Stor AS; AMP Tank keeps a minority. 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	50 MW
Capacity	50 MWh
Duration	1.0 hours
Status	Being built, as of 6 June 2025
Owner’s date	2026, expected
Grid connection	By a substation recently built by Fingrid, part of the Aurora Line
Placed on the map	not placed: no municipality in any source

Who is behind it

Owner	Å Energi (majority), with Farvatn Capital and Eco-Stor AS; AMP Tank keeps a minority
Developer	AMP Tank
Built by	Eco Stor (build; Energy-Storage.news only)

Å Energi (Norway). No Finnish company for Isokangas found by name in YTJ.

Not published anywhere we have found: ultimate owner, cells. The page says so rather than guessing.

What the sources say

Å Energi (4 Jun 2025): "50 megawatt/1hour", near Oulu ("Uleåborg"), to be completed in 2026; AMP Tank developed it. Municipality not given. "Under construction" rests on Energy-Storage.news. Developer corrected 12 Oct 2026 (was blank).

Evidence and sources

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-B032.

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