TENSIO TS AS

Overview

Tensio TS AS operates as a regional distribution system operator (DSO) with an extensive portfolio of 19 concession cases spanning transformer stations, cable replacements, and new high-voltage connections across Trøndelag and parts of Møre og Romsdal and Innlandet. The company's activity is primarily grid infrastructure — upgrading aging assets, expanding capacity to serve growing industrial and residential consumption, and replacing legacy equipment with modern alternatives. A notable industrial connection project involves a new 132 kV line to Holla smelteverk (60 MW consumption), reflecting the company's role in enabling industrial electrification in the region.

Active Regions

Strategic Focus

Tensio TS AS is focused exclusively on grid infrastructure development as a regional DSO, with an emphasis on upgrading voltage levels (66 kV to 132/145 kV), replacing aging equipment, expanding transformer station capacity, and building new connections to serve growing industrial and residential demand across Trøndelag. The company has no generation assets and does not participate in the Statnett grid queue, reflecting its pure network operator role.

Recent Activity

In the past 30 days, Tensio TS AS has been active on two fronts: on July 6, 2026, together with Statnett SF, it filed a joint permit application to upgrade and expand Klæbu transformer substation in Trondheim — a significant project involving voltage upgrades to 135/145 kV and expansion of the station area by 17.5 dekar. Earlier, on June 11, 2026, the company received a concession for earth fault neutralizing reactor replacement at Snillfjord transformer station in Orkland.