Connecting the UK since 1966

EHV Projects Division

Transmission, Distribution and Renewable Grid Connections

PN Daly Transmission

Cable Route Feasibility

Cable System Design

FEED studies

33kV to 400kV

Construction, Installation and Turnkey Solutions

Cable Route Civils

Substation Cabling and Private Grid Connections

Testing & Commissioning

UK wide

Our EHV Projects Division are a specialist EHV cabling contractor delivering bespoke EHV cable system solutions to valued clients across the UK and Ireland.

We aim to be the first choice EHV cable system design and build specialist contractor for our client base offering tailored, optimised cable system design and installation solutions alongside a safe, customer-centric, flexible and collaborative approach to delivery.

We design, supply, install, test and commission private grid connections and substation cabling projects across the UK.

Whether it’s a BESS, Solar, Synchronous Condenser or Grid connection, we offer our clients a comprehensive service from design or installation, right up to a one-stop, trouble free, turnkey service for their projects.

The EHV Projects Division have a long standing reputation for delivering technically and logistically challenging EHV cabling projects safely, on-time and to a high quality.

We have been Lloyd’s Register National Electricity Registration Scheme (NER’s) accredited to 132kV since 2005 and are experts in the design and installation of cable systems from 11kV up to 400kV.  

Collectively our management team have experience of working  on projects for most of the UK Transmission Network Operators (TNO’s), Distribution Network Operators (DNO’s), Private Networks and switchgear or cable manufacturers, on both onshore and offshore platform projects.

We can support developers or renewable energy providers with assessing project viability by assisting with cable system design, route feasibility, project costing and project planning.   Our in house Design and Engineering department, including CAD Technicians, are able to support projects throughout their life cycle, meanwhile our project delivery teams use their considerable experience to ensure a hassle free experience for our clients.

The wider business has been operating since 1966 in the water, gas, electricity and multi-utility markets ensuring we have access to in-house expertise associated with all the utilities likely to be encountered along a cable route and a dedicated Section 50 department for highway works.

We have an excellent reputation and strong track record of successful delivery for our clients enabling our ambition to strive to be first choice for our clients.

Discuss your project About Us


HV cable ducts completed and 3 phases pulled ready for termination. Big thanks to the PN Daly Ltd team.

National Grid, Control Interface Engineer

Always a pleasure to see PN Daly on my projects; quality, efficiency with gold plated health & safety standard as the norm.

Scottish Power, Construction Manager

The PN Daly team are always proactively communicating, providing solutions to issues where required and leaning on their extensive experience of working with the various Transmission Operators across the UK.

Welsh Power, Project Manager

Excellent communication. PN Daly and Welsh Power have built a strong relationship and both parties work very well together.

Welsh Power, Director

We found PN Daly always willing to contribute to the design solution with good suggestions and technical expertise.

Freedom Group, Project Director


Welsh Power
Peel Energy
SP Energy Networks

Discover our Renewable, Transmission and Distribution EHV Cable Projects

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