Bullerforsen
Operating, 20 MW · 20 MWh (SE3), owned by Centrica. 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 | 20 MW |
| Capacity | 20 MWh |
| Duration | 1.0 hours |
| Status | Operating, as of 15 April 2026 |
| Owner’s date | April 2026, actual |
| Bidding zone | SE3, Stockholm |
| Placed on the map | not placed: no municipality in any source |
Who is behind it
| Owner | Centrica |
| Developer | Fu-Gen |
| Traded by | Centrica Energy |
| Built by | Omexom |
Not published anywhere we have found: ultimate owner, cells.
What the sources say
One of two Centrica batteries of 20 MW and 20 MWh each, built from projects bought ready to build from Fu-Gen in September 2024; Centrica announced both energised in April 2026, while Omexom, the builder, says both ran by the end of 2025. Centrica Energy trades them. Its municipality is not stated: Energy-Storage.news puts both in Borlänge, ESS News one north of Stockholm, Omexom both in Dalarna.
Evidence and sources
- name, owner, builder, power, capacity, bidding zone: omexom.com
- developer: centrica.com/media-centre/news/2024/powering-up-centrica-ene…
- optimiser, status: energy-storage.news/british-gas-owner-centrica-activates-40mw-bess-…
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-B043.