Scottish Power Boost: 3 Contract Milestones, £600m Financing and Suppliers Confirmed for Eastern Green Link 4

In a concentrated set of developments that refocus investor and industrial attention on Britain’s east-coast grid upgrades, scottish power has been linked to a £600 million financing and sits alongside more than £3 billion of new contracts awarded for the Eastern Green Link 4 (EGL4) subsea interconnector. The package — financing from the National Wealth Fund and major supply contracts for cables and converter stations — composes a clear milestone in the EGL4 procurement and capital stack.
Scottish Power financing and contracts
The financing element features the National Wealth Fund providing a £600 million facility to scottish power through its parent company, Iberdrola, specifically to support the development of the 2 GW Eastern Green Link 4 high-voltage direct current subsea power link. Separately, SP Energy Networks, a subsidiary in the same corporate group, has awarded more than £3 billion in contracts tied to the project.
Contract awards include a roughly £2 billion agreement for subsea and underground cables with Prysmian and a contract confirmed with Siemens Energy to deliver two HVDC converter stations, one in Fife and one in Norfolk. Project partners named in the procurement process include SP Energy Networks and National Grid Electricity Transmission (NGET).
Deep analysis: scale, economics and timing
EGL4 is described as a 2 GW HVDC link spanning approximately 530 kilometres between Fife and Norfolk, with capacity stated as sufficient to transmit the equivalent of power for around 1. 5 million homes. That scale helps explain the magnitude of the procurement and financing: long cables and converter stations for HVDC links are capital intensive, and the combined awards and facility place heavy deployment and payback expectations on the underlying project economics.
Timing is material to risk and value. Subject to planning consent, the project is expected to enter main construction in 2028 (ET) and to complete in 2033 (ET). EGL4 is the fourth of five subsea links planned along Britain’s east coast; partners are also progressing EGL1, expected to complete in 2029 (ET). The multi-stage schedule extends execution and regulatory exposure across years, meaning financing structures and contractor performance will be central to whether projected benefits — reduced grid constraints and increased flows of renewable power — are realised within forecast windows.
Expert perspectives and institutional roles
Legal and project-finance counsel have been active: Norton Rose Fulbright advised the National Wealth Fund on the £600 million financing. The law firm team was led by David Milligan, London-based Partner at Norton Rose Fulbright, assisted by Peter Weiland, Counsel, and Aysha Ahmed, Associate, with UK tax advice from Partner Julia Lloyd and Trainee Roly Peel. David Milligan commented, “We are pleased to have advised the National Wealth Fund on this significant financing, which supports the delivery of nationally important energy infrastructure. Projects such as EGL4 play a vital role in strengthening the UK’s electricity network. ”
On the industrial-supply side, Darren Davidson, UK Vice President for Siemens Energy, said, “Eastern Green Link 4 is a critical project for strengthening the UK’s electricity network and enabling more renewable power to flow between Scotland and England. Working with our partners, at SP Energy Networks, National Grid Electricity Transmission and Prysmian, we’re investing in the supply chain to deliver this nationally significant HVDC infrastructure. ” Iain Adams, Deputy Project Director of EGL4, described securing Siemens Energy and Prysmian as “a real project milestone” that will precede further UK contract awards for the programme.
Regional and systemic consequences
The combined package of procurement and financing is tailored to reduce grid constraint costs by enabling higher-volume flows of domestically generated electricity from Scotland to demand centres in England. That functional objective underpins the rationale for the National Wealth Fund’s facility to scottish power and for awarding major contracts now: the assets being procured — conversion stations and long-distance HVDC cable — are the core enablers of cross-border transfer capacity.
At the corporate level, Iberdrola’s market metrics have been referenced alongside the project momentum: Iberdrola’s share price and valuation multiples appear to be weighed against the expectation of a multi-year pipeline of offshore wind and distribution upgrades that projects like EGL4 will support. Those valuation signals intersect with the financing and procurement outcomes to shape investor assessments of balance-sheet impact and future earnings potential.
Will scottish power’s role in EGL4 — combining a major financing facility and the routing of multi-billion-pound contracts — change the investment narrative for the group and for the broader UK grid upgrade programme as it moves toward construction in 2028 (ET) and completion in 2033 (ET)?




