Northernhv Ltd · Company 13601093 · Trading heritage since 2021
Active·main contractor & subcontractor & engineer·Head office Hartlepool
Northern HV operates across the UK and internationally, supporting clients in sectors including renewables, utilities, infrastructure, oil and gas, construction, data centres, and private networks. The company offers full electrical project delivery, from transformer builds and substation construction to switchgear installation, commissioning, and ongoing maintenance. Founded in September 2021, Northern HV has experienced rapid growth driven by a reactive approach to client needs and a focus on long-term relationships.
The team comprises directors, operations and project management, QHSE leadership, commissioning engineers, and administrative support, all committed to delivering high standards. Core values of commitment, discipline, honesty, hard work, dynamism, inclusivity, and community orientation shape their daily operations. Accredited with ISO 9001, ISO 14001, ISO 27001, and ISO 45001 certifications, and holding NERS accreditation and SSIP Certification Body Membership, Northern HV demonstrates a strong commitment to quality management, environmental responsibility, information security, and occupational health and safety.
They work with respected industry names such as Hitachi, Siemens, Eaton, Hyosung, AGS, and Vattenfall, built on trust, safety, and technical excellence.
Knutsford, UK
Northern HV was appointed to carry out essential high voltage cable repairs at the Barclays Innovation Centre in Knutsford following the need to replace a damaged section of cable between the Ring Main Unit (RMU) and transformer.
Client · Barclays Innovation Centre
UK
Northern HV carried out planned maintenance on a 132kV live tank SF₆ circuit breaker at a UK primary substation. Full hydraulic system service, timing tests, and gas quality analysis, returned to service with zero gas loss.
Client · Confidential UK DNO / ICP
UK
Northern HV delivered full installation and commissioning of a 400/33kV 60MVA power transformer at a UK grid substation. Vacuum oil filling, IEC 61850 protection integration, and energisation on schedule, over 8,000 man-hours without incident.
Client · Confidential Utility Client
UK
Northern HV installed and commissioned a 275kV disconnector earth switch at a live UK transmission substation. Delivered within the planned outage window with zero lost time incidents.
Client · Confidential UK Transmission Operator
UK
Northern HV installed and commissioned a Hitachi Energy LTA 145D1 145kV circuit breaker using eco-efficient CO₂ gas technology. Full mechanical, electrical, and gas handling works delivered within a constrained outage window.
Client · Confidential UK DNO / ICP
Hitachi, Siemens, Eaton, Hyosung, AGS, Vattenfall, SGB, Nissan UK, GE Verona, Barclays Innovation Centre, Confidential UK DNO / ICP, Confidential Utility Client and 1 others.
This profile was compiled from public records. Claim it to add the things buyers ask for:
Northern HV are specialist HV & LV commissioning engineers delivering electrical projects worldwide. ISO certified, SSIP approved. Their listed services include Electrical, Utilities and Civil engineering.
Northernhv Ltd is registered at HARTLEPOOL, TS25 2FE, in North East.
Northernhv Ltd states that it works across Scandinavia.
Companies House lists Northernhv Ltd as active.
Northernhv Ltd displays ISO 9001, ISO 14001, ISO 27001, ISO 45001, SSIP and NERS accreditation on its website.
Northernhv Ltd works in Energy, Infrastructure, Industrial and Commercial.
Northernhv Ltd was incorporated on 2021-09-03.
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