Jacobs secures eight-year role in Scotland transmission programme

Jacobs has secured an eight-year multidisciplinary framework with Murphy to support projects in its SSEN Transmission portfolio, adding to the engineering capacity behind one of the UK’s largest electricity network buildouts. The agreement covers transmission and distribution infrastructure linked to the transition to lower-carbon power, with Jacobs providing high-voltage electrical design, verification and assurance, alongside engineering, environmental, geotechnical, and civil services.

The framework extends an existing relationship between the two companies and sits within a delivery model increasingly shaped by long-duration programmes rather than isolated project awards. Across transmission work in Scotland, substations, overhead line routes, cable links, and grid connections are being progressed at the same time, bringing heavier demands on design coordination, technical assurance, environmental assessment, and construction planning. That is pushing specialist engineering work further up the delivery chain. Design and assurance are no longer background functions completed before the main works begin; they are central to whether major projects move through approval, procurement, and construction at the pace now required.

SSEN Transmission’s wider programme gives the contract its scale. The company has set out plans to invest £29 billion in network infrastructure by 2030 across the north of Scotland, with the aim of connecting new renewable generation, strengthening transmission capacity, and enabling electricity from Scotland to move more efficiently across Great Britain. That programme includes new substations, major reinforcements, upgraded lines, and new connections, all of which depend on multidisciplinary engineering input well before heavy construction begins. Framework appointments of this kind therefore reflect the structure of the market as much as the needs of any single project.

The technical emphasis is significant. High-voltage design, verification, and assurance work sits at the junction between compliance, safety, constructability, and system performance. Transmission schemes now carry tighter requirements around environmental mitigation, land access, network resilience, and programme certainty, while the assets themselves must handle higher power flows, more renewable inputs, and a grid that is becoming more dynamic. As reinforcement programmes accelerate, the industry is placing greater weight on organisations that can manage those interfaces without slowing delivery or creating rework later in the process.

That pressure is visible across the wider UK grid market. Government policy around Clean Power 2030, strategic transmission planning, and connections reform is increasing the volume of projects that need to move through development and into construction. At the same time, utilities and delivery partners are contending with stretched supply chains, scarce specialist resource, and rising expectations around programme discipline. The result is a market in which long-term engineering frameworks carry increasing value. They give contractors and utilities a more stable route to design resource and create continuity across portfolios that would otherwise be broken up by repeated competition for the same limited expertise.

For Murphy, the agreement adds depth to its role in a transmission market that is now operating at programme scale. For Jacobs, it secures a position in one of the busiest parts of Britain’s network expansion cycle. More broadly, it reflects the industrialisation of grid delivery. Transmission reinforcement is no longer a narrow utility activity carried out at the margins of the power sector. It is becoming a large and sustained engineering market in its own right, shaped by long-term capital plans, repeated project types, and the need for consistent technical capacity across entire portfolios.