SSEN Transmission said it has accepted a new five-year funding settlement from energy regulator Ofgem — securing a big programme of investment for grid upgrades across the north of Scotland.

“Following a thorough review of Ofgem’s Final Determinations for the RIIO-T3 Price Control period, SSEN Transmission confirms its acceptance of the settlement, recognising it as an investable and deliverable settlement overall,” said SSE’s transmission business.

“The RIIO-T3 price control comes at a critical time for securing clean, affordable and reliable power for families and businesses across the country.

“The investment it delivers will help reduce reliance on imported energy from overseas, remove grid bottlenecks and strengthen energy security.

“It will also act as a major catalyst for economic growth, jobs and supply chain investments across the UK to unlock the country’s full clean energy potential.”

The RIIO-T3 Price Control period runs from April 2026 to March 2031 and is part of Ofgem’s regulatory framework aimed at ensuring energy network companies have enough revenue to invest in maintaining and improving their networks for the benefit of UK businesses and consumers.

Headquartered in Perth — with offices in Aberdeen, Inverness and Glasgow — SSEN Transmission is responsible for the electricity transmission network in the north of Scotland, investing in and maintaining the high voltage 132kV, 220kV, 275kV and 400kV electricity transmission network.

SSEN Transmission is owned 75% by SSE plc and 25% by Ontario Teachers’ Pension Plan Board.

“SSEN Transmission has already demonstrated its commitment to delivering the critical transmission infrastructure upgrades required to help deliver the country’s energy and economic ambitions,” said the company.

“These investments are largely represented by 11 major transmission reinforcements, which SSEN Transmission continues to progress having already secured 75% of major planning consents, with six of these schemes fully consented and five already in the construction phase.

“Securing the remaining consents will be a focus for the business for the remainder of this calendar year.

“SSEN Transmission continues to work constructively with Ofgem, Government and wider stakeholders as it delivers the investments in new and upgraded infrastructure that are required to help deliver clean power, energy security and lower bills for current and future generations.”