REG - SSE Plc - SSENT accepts Ofgem’s RIIO-T3 Final Determination

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RNS Number : 8085U  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
(http://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 (http://www.ssen-transmission.co.uk/) ,
(https://twitter.com/SSETransmission) LinkedIn
(https://www.linkedin.com/company/ssen-transmission/)  or Instagram
(https://www.instagram.com/ssentransmission/) .

 Enquiries
 Investors   SSE Investor Relations  ir@sse.com     Michael Livingston  +44 (0)345 0760 530
 Media       SSE Media               media@sse.com  Greg Clarke         +44 (0)345 0760 530

 

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