SSENT accepts Ofgem’s RIIO-T3 Final Determination

SSE PLC

02 March 2026

 

SSEN Transmission accepts Ofgem's RIIO-T3 Final Determination

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.

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.

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. 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.

Notes

·    The RIIO-T3 Price Control period runs from April 2026 - 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.

SSEN Transmission's dedicated Business Plan website:

www.ssen-transmission.co.uk/RIIO-T3

About SSEN Transmission

·    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's strategic objective is to enable the transition to a low carbon economy, helping to secure the country's clean power and energy security ambitions. It does this by building the electricity transmission network infrastructure required to connect and transport renewable electricity in the north of Scotland to the towns, villages and cities where it's needed, as it delivers a network for net zero emissions.

·    SSEN Transmission is owned 75% by SSE plc and 25% by Ontario Teachers' Pension Plan Board (Ontario Teachers').

·    Learn more about SSEN Transmission by visiting  www.ssen-transmission.co.uk, LinkedIn or Instagram.

Enquiries
Investors	SSE Investor Relations	[e-mail]	Michael Livingston	[phone]
Media	SSE Media	[e-mail]	Greg Clarke	[phone]

 

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