Power Transmission & Distribution

Our flexible offering covers project scoping, feasibility studies, design, construction and emergency response maintenance. Our teams are highly skilled with extensive industry knowledge and experience delivering on often complex schemes in challenging environments.

Our teams’ skills and technical capability ranges from Low Voltage (LV) to Extra High Voltage (EHV).

OCU deliver engineering solutions for all Distribution Network operators. We work collaboratively with our customers to provide safe and reliably engineered connections to grid infrastructure.

Our teams provide a combined overhead line, underground cabling and substation offering which is unique to the market and covers all our customers distribution needs.

Overhead Line
Underground Cabling
SubStation

Our range of Power Transmission & Distribution services includes:

Underground Cable

SHEPD, NPG, NGED, SPEN, SSEN, UKPN

Installation, Reinforcement, Design, Test, Commission up to LV to 132kV
HDD Design, Test, Commission LV to 132kV
New connections, overlays, diversions LV to 33kV
Faults, repairs, jointing, fault response, finding LV to 33kV
Cable pulling LV to 132kV Optioneering & feasibility

Overhead Line (Woodpole)

SHEPD, NPG, SSEN, UKPN, SPEN

OHL Install Design, Install, Test, Commission LV to 33kV
Overlay schemes LV to 33kV
Transformer install, replacement up to 33kV
Rewiring existing poles up to 33kV
Minor steel tower diversions

Substations

NPG, SSEN, UKPN

Design, Install, Test, Commission up to 132kV
New build, replacement and refurbishment of GIS and AIS up to 132kV
Specialist civils design up to 132kV
Cable Design, Install, test, Commission LV to 132kV
SAP and Commissioning engineers in house

What our clients say...

Featured Case Studies

Braidwood Primary Substation - SP Energy Networks (SPEN)

Delivering a full refurbishment of the 12 MVA primary transformer T2 at Braidwood Primary Substation, Scotland, restoring safe and reliable operation while ensuring full compliance with environmental and operational standards.

HS2 Infrastructure
Enabling and Multi Utility Diversion Works

Delivering utility diversions across water, gas, power and telecoms for a major UK rail project, with our Water and HDD teams applying NIRS, GIRS and WIRS accreditations to complete complex works in constrained environments.

Mill Hill, Longforgen

Upgraded the electrical infrastructure at Mill Hill, Longforgan with new 11kV wood poles, overhead switchgear, and a third conductor to supply a 200kVA transformer, enabling a three-phase connection for new solar and ground source heat pump installations.

Mill Drowndubbs

Upgraded the electrical infrastructure at Mill Drowndubbs with new 11kV wood poles, overhead switchgear, and an additional conductor to provide a three-phase supply and transformer upgrade for an SSEN customer.