Norway · the named batteries
Husøy grid battery (Smart Senja)
Operating, 2 MW and 2 MWh, in Senja, owned by Arva AS. Every fact below is as a published source states it, with the address beside it; a field not shown is one no source gives.
The battery
| Power | 2 MW |
| Capacity | 2 MWh |
| Duration | 1.0 hours |
| What the sources say about the size | NVE gives 2 MW / 2 MWh at Husøy and 0.8 MW / 0.8 MWh at Senjahopen; the supplier described three units of 4.25 MVA and 3.79 MWh together, two of them on Husøy. |
| Kind | Grid support |
| Status | Operating, as of March 2026 |
| Stated date | November 2021, actual |
| What it is for | grid support; ran the local grid as an island several times in storm Ingunn (2024) |
| Municipality | Senja, Troms |
| Bidding zone | NO4, the north (Tromsø); read from its county |
| Placed on the map | GeoNames, Husøy (island) |
Who is behind it
| Owner | Arva AS |
| Brønnøysund number | 979151950 |
| Built or supplied by | Rolls-Royce (mtu EnergyPack) |
What the sources say
Part of the Smart Senja pilot run by the grid company Arva. The 0.8 MW Senjahopen unit is under the one megawatt this list starts at and is left out.
Evidence and sources
- NVE fact sheet 04/2026 (size and date): publikasjoner.nve.no/fakta/2026/fakta2026_04.pdf
- Rolls-Royce (supplier; Arva's project): rolls-royce.com/media/our-stories/discover/2021/tomorrows-p…
Statnett publishes no meter, price or instruction per battery, so this page carries no money; what one megawatt would be paid in each reserve market is on the markets page. List id NO-B02.