HV Energy Systems

What HV Energy Systems does

HV Energy Systems is a Bristol, UK-based specialist Independent Connection Provider (ICP) delivering high-voltage grid connection infrastructure for renewable energy, battery energy storage, and industrial clients across the United Kingdom. The company specialises in technically complex connections ranging from 33kV to 400kV, holding National Electricity Registration Scheme (NERS) accreditation under LRQA registration alongside ISO 9001, ISO 14001, and ISO 45001 certifications. Its operations span the full project lifecycle, organised across five integrated service lines: design engineering, preparation and management (including DNO / G99 grid connection applications), supply and site installation works (including substation construction and SAP duties up to 132kV), testing and commissioning, and ongoing 24/7 operations and maintenance with a 24-hour mainland UK response guarantee.

The business is built around a 24-person engineering team with in-house Senior Authorised Person capabilities, supported by an off-site construction facility at Bristol where DNO substations can be assembled. Reference projects include a 60MW battery energy storage system for British Solar Renewables at Fareham (two 33kV connections to SSEN substations) and a 20MVA solar park connection for Low Carbon at Maldon, alongside medium-voltage infrastructure work for a marine test facility. Revenue is generated through project-based engagements with renewable energy developers, energy storage project developers, and Distribution Network Operators, supplemented by recurring managed-service O&M contracts.

In May 2026, HV Energy Systems was acquired by RSK Group, a global environmental consultancy operating over 200 companies across 40 countries with revenues of £2.24 billion. Co-founders Craig Steven (Managing Director) and Louis Wright (Technical Director) continue to lead the business under its existing delivery-led operating model, with RSK providing integrated energy-transition scale across international markets.

Name

HV Energy Systems

Legal name

HV Energy Systems

Website

https://hvenergysystems.co.uk

Company type

Private

Operating status

Acquired

Headcount range

1–10 employees

Ownership category

akta.pro rank

Product category

High-Voltage Grid Connection Services

NAICS

Power and Communication Line and Related Structures Construction (237130)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Substations, Transformers & Grid Step-Up Facilities (EHV Substations, GSU Transformers) (EUAMAFAE)

akta.pro secondary industry

Overhead Transmission Line EPC (HV/EHV) (EUAEABAA)

Keywords

• High voltage connections
• Grid connection services
• Renewable energy infrastructure
• Independent connection provider
• Substation construction services

Headquarters

HQ city

Bristol

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. High-Voltage Grid Connection Infrastructure: Design, build, and commission high-voltage grid connection infrastructure for renewable energy and energy storage projects. Revenue is generated through project-based engagements with renewable energy developers and Distribution Network Operators (DNOs).
2. Engineering and Technical Services: Provides technical services including design engineering, project management, site technical works, and Senior Authorised Person (SAP) duties. Services are offered as part of complete project delivery or standalone engagements.
3. Operations and Maintenance: Ongoing maintenance and support services for high-voltage infrastructure including 365-day/24hr SAP on-call facility, periodic inspections, and preventative maintenance programs.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

HV Energy Systems designs, builds, and commissions high-voltage grid connection infrastructure (33kV to 400kV) for renewable energy developers, energy storage project developers, and Distribution Network Operators across the UK. The company provides end-to-end project delivery spanning design engineering, project management, site installation, testing and commissioning, and 24/7 operations and maintenance, with in-house Senior Authorised Persons (SAPs) up to 132kV enabling work on live HV systems.

Product overview

HV Energy Systems offers a unified suite of high-voltage electrical power solutions centered around grid connection infrastructure for renewable energy and energy storage projects. The company's service portfolio comprises five integrated offerings: Design Engineering (complete HV and LV energy systems design packages), Preparation and Management (grid connection applications and project coordination), Supply and Site Installation Works (substation construction, cable installation, and equipment supply), Testing and Commissioning (switchgear, cable, and transformer testing services), and Operations and Maintenance (24/7 SAP on-call support and preventative maintenance). These services work together to deliver end-to-end high voltage connection solutions from initial design through to operational support, with the company specializing in technically complex connections ranging from 33kV to 400kV.

Differentiator

Problem solved

Functional benefit

Products and services

• Design Engineering Comprehensive HV and LV energy systems design packages including power quality monitoring, harmonic distortion assessment, voltage fluctuations assessment, earthing design studies, cable and switchgear selection, protection systems design, protection grading studies, controls and communications design, civil and construction works design, and due diligence reporting on third-party designs. Offered to renewable energy developers, energy storage project developers, DNOs, and industrial clients requiring high-voltage infrastructure.
• Preparation and Management Project preparation and management services including technical feasibility assessments, cost estimates, completion of technical documents, DNO and ENA G99 grid connection applications, review and negotiation of DNO grid connection offers, liaison with third-party landowners, and consultation with statutory and utility organisations. Targeted at renewable energy and energy storage developers requiring grid connection application and approval management.
• Supply and Site Installation Works Complete substation building and compound construction services including groundworks, roads, structures and building services; installation of HV conductors, cables and busbar systems; LV cables and busbar systems; earthing systems; power transformers; HV switchgear and ancillary equipment; electrical system protection; and Senior Authorised Person (SAP) duties on live HV systems. Delivered for renewable energy developers, DNOs, and industrial clients.
• Testing and Commissioning Comprehensive testing and commissioning services for switchgear, protection and controls including functional checks, ductor testing, AC pressure testing, insulation resistance tests, primary injection tests, protection settings and logic setup, secondary injection, protection timing tests, SCADA interface testing, G99 device setup, and FFR/EFR testing; cable testing including VLF, sheath integrity, and partial discharge; and power transformer testing including voltage withstand, induced voltage, and dielectric oil sampling. Offered as part of project delivery or standalone engagement.
• Operations and Maintenance 24/7 SAP on-call facility with site attendance within 24 hours for mainland UK; periodic HV inspection and preventative maintenance designed to monitor for deterioration and prevent significant failures; and bespoke maintenance packages tailored to meet technical and commercial requirements. Provided as ongoing managed service to clients with installed high-voltage infrastructure.

Quantifiable outcome

• 100% project success rate across 479 completed projects
• +3 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Two partnerships are on record, tiered minor.

• British Solar RenewablesminorStrategic or Co-development PartnerPartnership on the Fareham 60MW Battery Energy Storage System project. HV Energy Systems delivered two 33kV grid connections to the SSEN Fareham bulk supply point substation for a 60MW battery storage facility. British Solar Renewables is working towards a net zero carbon future through development of renewables and battery projects.
• Low CarbonminorStrategic or Co-development PartnerPartnership on the Maldon Solar Park project. HV Energy Systems designed and installed a new 33kV loop in loop out grid connection and new 33kV customer and DNO substations for a 20MVA solar park. Low Carbon owns and operates the operational solar park generating renewable energy to the grid.

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• M Group Services: UK infrastructure services platform (private equity-backed) delivering utility connections, HV works, and energy infrastructure for DNOs and developers. Direct competitor in UK HV ICP market with deeper scale and broader service breadth; potential acquirer profile for HVES-like specialists.
• UK Power Networks Services: DNO-affiliated HV design, build, and connections contractor serving large commercial and industrial customers in the UK. Comparable in HV grid connection delivery and DNO-adjacent positioning, though backed by a DNO parent (UK Power Networks) which gives it preferred-supplier dynamics HVES must compete against.
• Burns & McDonnell: Global engineering, EPC, and consulting firm with substantial transmission & distribution practice delivering HV substations and grid connections for utilities and developers. Comparable on the design, EPC, and T&D services stack though operating at much larger scale and broader portfolio.
• Balfour Beatty: Major UK-listed infrastructure group with significant HV transmission, substation, and power systems capability through its Power Transmission & Distribution business. Competes with HV Energy Systems on large utility-scale HV connections as part of a broader infrastructure portfolio.
• SSE Energy Services: Utility-affiliated HV contracting and connections business within SSE group, competing for renewable and BESS grid connections in the UK. Comparable in HV connection scope and customer overlap with HV Energy Systems, with the strategic advantage of utility parentage.
• Quanta Services: NYSE-listed infrastructure pure-play providing HV transmission, substation, and renewable interconnection EPC across North America. Comparable on the utility-scale HV grid connection EPC business model; a useful scale and execution benchmark for the ICP-to-EPC evolution.

Regional players

• Wilson Power Solutions: UK manufacturer and service provider for distribution and power transformers, with adjacent HV systems capabilities. Comparable on the UK HV power systems domain, though focused on transformer equipment supply rather than full ICP delivery.

Direct peers

• Freedom (Morrison Energy Services): Major UK ICP and utility infrastructure contractor providing HV connections, substation build, and contestable works for DNOs and developers. Direct competitor in the UK HV ICP market, with significantly larger scale than HV Energy Systems but overlapping service portfolio and customer base.
• Linxon: Hitachi/AtkinsRéalis joint venture delivering HV and EHV substation EPC for utilities and renewable developers globally. Closest comparable on the substation EPC side of HV Energy Systems' offering, with comparable end-to-end design-build-commission scope at transmission voltages.
• G2 Energy: UK-based Independent Connection Provider delivering HV grid connections (11kV-132kV) for renewable energy, BESS, and commercial developers. Most directly comparable peer to HV Energy Systems by virtue of overlapping ICP scope, UK focus, NERS accreditation, and renewable/BESS customer base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about HV Energy Systems