SSE shares drop as £12bn Scotland grid expansion stretches spending nerves

London, June 30, 2026, 19:01 BST

• SSE closed at 2,436p, slipping 0.94%. FTSE 100 added 0.12%.
• SSEN Transmission said the new Beyond 2030 update from NESO shows about £12 billion more possible investment for northern Scotland.
• SSE holds a 75% stake in SSEN Transmission. That puts the implied portion for SSE at roughly £9 billion, before financing, approvals, and final scope.
• SSE’s AGM is set for July 16, when it’s also due to release its Q1 trading update. The final dividend trades ex-div on July 23.

SSE PLC (LON:SSE) dropped 0.94% to 2,436p on Tuesday, lagging a stronger FTSE 100, after its electricity transmission unit flagged that a new UK grid plan may bring about £12 billion of possible investment in northern Scotland. The shares took a hit as investors focused on the higher capex hints instead of any immediate boost to earnings.

Putting the £12 billion number in stock terms sharpens the view. That’s about 41% of SSE’s market cap. Based on SSE owning 75% of SSEN Transmission, the figure drops to about £9 billion, or roughly 31% of the group’s market value, ahead of any debt, partner share, regulator outcomes, or the final project slate.

NESO said the UK will need about £89 billion to upgrade its power grid through the 2030s, up 53% from its last estimate two years ago. The group said power demand might jump more than 30% by the mid-2030s on higher use from electric cars, housing, industry and AI-driven data centres. Right now, network fees are around 25% of an average home energy bill. Ofgem usually signs off on grid upgrade costs, which are then passed on to bills.

SSE’s main focus is still the north of Scotland. SSEN listed new projects, including two 2GW HVDC links — EGL5 running from Longside, Aberdeenshire, down to Lincolnshire, and EGL6 going from the Newmachar area to southeast England. There’s also a plan for a 400kV Greens-to-Harburn line. SSEN mentioned it might upgrade the Dounreay-Loch Buidhe-Beauly route, but says it isn’t moving ahead with that for now.

SSEN Managing Director Rob McDonald called investment in the transmission network “the key enabler” for a cleaner and more secure grid, describing it as a “major catalyst of economic growth.” SSEN said it still needs to go through public consultation and get a regulatory framework in place, as well as delivery-body confirmation, planning approval and other regulatory clearances. SSEN Transmission

SSE has faced capex questions before. In May, it said adjusted investment and capex for the year to March 2026 would be £3.59 billion, up 23%. About 72% of that comes from regulated electricity networks. SSEN Transmission reported adjusted operating profit up to £562.6 million from £322.5 million. Regulated asset value climbed to £9.0 billion, from £7.2 billion.

Chief Executive Martin Pibworth said in the May results that the fully funded £33 billion investment plan through 2030 is “well under way” and “central to long-term value creation.” SSE has left its adjusted EPS goal for 2026/27 at 168p-193p, and said capex for this year should top £5 billion.

Analysts are mostly bullish, but the range of price targets points to the grid news as a mixed bag. Consensus from WSJ/FactSet has the stock at overweight, with eight buys, two overweights, three holds, and one sell. The average price target sits at £27.34, or 2,734p, compared to the 2,436p close on Tuesday.

The stock’s story is all about whether new grid assets will pay off fast enough to cover their costs and risk from approvals and building. Next up for SSE is July 16, when it releases its Q1 trading update and holds its annual meeting. The final dividend goes ex-date on July 23.