RC Infrastructure
High-voltage substation lattice structures with porcelain insulators against blue sky.
Capability 02 · Power distribution & HV

Engineered to energise on time.

From 11 kV distribution to 132 kV feeders, autotransformer sites and DNO grid connections. The hidden infrastructure that decides whether a scheme lights up on programme.

11–132 kV
Voltage band
ENA G5/5
Commissioning std
DNO · Rail · BESS
Sectors
What we deliver

From feasibility to energisation.

The hidden infrastructure that gets schemes through DNO approval, installation and test on programme.

Four phases · one schedule

Feasibility. Design. Build. Commission.

Route selection and DNO liaison are where most HV delays are won or lost. We engage before the connection application is filed, then carry design, build and commissioning through one accountable team.

G59 · G99
Generation stds
132 kV
Max voltage
DNO-liaison
Pre-application
SCADA
Integration
I. Feasibility & grid strategy

Route selection is where most HV delays are won or lost.

We work with clients before a connection application has even been made. Route selection, point-of-connection optioneering and DNO liaison set the trajectory of the whole programme. We start here.

Ground-mounted distribution transformer at a UK DNO site.
II. Design

Design for buildability, commission, and audit.

Load studies, protection grading, earthing and bonding, full detailed design to ENA standards. Our installers will build what we draw. Our commissioning engineers will commission what they install.

Electrical substation switchyard with overhead gantry and switchgear at dusk.
III. Build

Own plant, own crews, own logistics.

Self-delivered civils, cabling, switchgear installation and substation fit-out. Cable pulling through rail troughing, direct burial across rural corridors and ducted installation in urban sites. We run our own cable pulling equipment.

Aerial view of the Bramley BESS facility with green battery containers and a substation.
IV. Test, commission & maintain

Audit-ready packs. Long-term relationships.

Site acceptance, point-on-wave commissioning, protection testing, SCADA integration. Then planned maintenance, fault response and emergency call-out for private HV networks.

Distribution transformer unit on a factory test bay.
Typical scheme

The shape of an HV programme we would take on.

Voltage band
11 kV to 132 kV
Scope
Greenfield feeders, brownfield upgrades, grid connections
Duration
6 months to 3 years
Value band
GBP 500k to GBP 30m+
Sectors
Rail, DNO, renewables, data centres, industrial
Accredited
  • RISQS accreditation
  • Link-up accreditation
  • ISO 9001, 14001 & 45001 accreditation
  • Constructionline accreditation
  • CHAS accreditation
  • Achilles UVDB accreditation

Planning a grid connection or HV upgrade?

Pre-application route reviews, DNO liaison, PQQ and framework support. First response within one working day.