SSEN Transmission Unveils £31 Billion Pound Grid Investment Plan for Northern Scotland

In a landmark announcement, SSEN Transmission has submitted ambitious proposals to regulators, outlining plans for a £31 billion upgrade to the electricity transmission network across northern Scotland. The comprehensive investment strategy, spanning 2026 to 2031, is projected to generate approximately 37,000 jobs throughout the United Kingdom.

The substantial financial commitment will facilitate the construction of new pylons, overhead lines, cabling, and substations, alongside essential infrastructure developments. SSEN Transmission, which operates under the ownership structure of 75% SSE (FTSE 100 energy infrastructure group) and 25% Ontario Teachers’ Pension Plan Board, anticipates creating 17,500 jobs in Scotland alone, injecting an estimated £7 billion into the Scottish economy.

The investment programme includes a proposed £100 million community benefit fund, demonstrating a commitment to local development. This extensive grid enhancement is crucial for accommodating the upcoming renewable energy projects, particularly the 27.6 gigawatts of offshore wind capacity planned under the ScotWind initiative.

Rob McDonald, managing director of SSEN Transmission, emphasised the significance of the project, stating it represents “an ambitious, deliverable blueprint” essential for achieving the UK government’s target of 95% low-carbon generation by 2030. The programme aims to revolutionise Scotland’s energy infrastructure while creating lasting economic benefits.

Ofgem, the energy regulator, is expected to deliver its verdict on the business plan by late 2025. The proposed expenditure ranges from a baseline of £22.3 billion to a potential £31.7 billion, with variations dependent on planning approvals, supply chain dynamics, and regulatory modifications.

SSE Chief Executive Alistair Phillips-Davies has called for regulatory support through “an appropriate cost of equity” framework, acknowledging the unprecedented investment required for economic decarbonisation and the establishment of a clean power system. The implementation of these network upgrades could potentially impact consumer energy bills through adjusted network service charges.

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