Sweden · the named batteries
Mälarenergi battery park at the Västerås power station
Being built, 30 MW · 60 MWh, in Västerås (SE3), owned by Mälarenergi. 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 16 March 2026 |
| Owner’s date | 2026, expected |
| Municipality | Västerås |
| Bidding zone | SE3, Stockholm |
| Placed on the map | at Västerås, the seat of its municipality (GeoNames) |
Who is behind it
| Owner | Mälarenergi |
| Developer | Mälarenergi |
Not published anywhere we have found: ultimate owner, traded by, built by, cells.
What the sources say
Twelve containers of 5 MWh; the earlier plan was 100 MWh. Mälarenergi expects the end of 2026, SVT spring 2027.
Evidence and sources
- name, municipality, owner, developer, power, capacity, bidding zone: via.tt.se/pressmeddelande/4257681/malarenergi-bygger-batt…
- status: svt.se/nyheter/lokalt/vastmanland/ny-batteripark-i-vas…
From the owners’, developers’ and builders’ own releases and the press, read by Vitreous. Svenska kraftnät publishes no meter, no price and no instruction per battery, so this page carries no money: what one megawatt is paid in each reserve market is on the markets page, for the market as a whole. List id SE-B055.