FROM CONCEPT
TO CONNECTION
snap shot
Value: Multi Million
Voltage: 33kV
Duration: On-going
90MVA 33kV CONTESTABLE CONNECTION
JSM is delivering the design and construction of a 90MVA, 33kV contestable connection for a major advanced manufacturing facility. The works combine an approximately 10km off-site cable route with new on-site 33kV and 11kV substation infrastructure, including primary transformers, switchgear, protection and control systems, associated civil engineering and commissioning.
THE CHALLENGES
- Two separate crossings of the M5 motorway, requiring location-specific engineering, specialist construction planning and close coordination with National Highways and the wider stakeholder team.
- The crossing of Crandon Bridge at Kings Sedgemoor Drain, requiring bridge-specific design development, surveys, structural assessment and coordinated approvals with the local planning authority, Indigo and affected utility stakeholders.
- Delivery of a long 33kV route through operational highways, third-party land and constrained working areas, requiring careful traffic management, access planning, utility coordination and sequencing.
WHAT WE DELIVERED
- A complete 33kV cable connection between Dunwear Point of Supply. And the new on-site substation infrastructure.
- New 33kV and 11kV compounds incorporating modular switchrooms, primary and auxiliary transformers, switchgear, earthing, drainage, access roads, fencing and supporting services.
- Engineered solutions for the two M5 crossings and the Crandon Bridge crossing, supported by route-specific surveys, design submissions and stakeholder approvals.
10km
Cable route
33kv
11kv
Substation
90MVA
specialisms used
- 33kV cable systems
- Substation design and construction
- Primary transformers
- Switchgear installation
- Highway engineering
- Bridge crossings
- Earthing and civil engineering
- Testing and commissioning
“Supporting the project has required close collaboration across design, engineering, construction and stakeholder teams. The project combines significant substation infrastructure with a complex cable route featuring motorway and bridge crossings, demonstrating JSM’s capability to deliver technically demanding power connection solutions at scale.“
Dean Wingham
Contract Manager