High-voltage engineering · United Kingdom
Unit Vector Solutions is an independent UK electrical engineering consultancy. We design AC substations from 11 kV to 400 kV, run the power system studies behind grid connections, engineer renewable and storage connections, and provide HVDC consultants for converter station control and protection — from feasibility to energisation and handover.
What we do
Most of our work sits where design, systems and delivery meet. We can take a discrete package — a relay settings study, an earthing report — or carry a scheme from connection application through to energisation.
FEED and detailed design for AC substations: primary, secondary and P&C, civil interfaces, HV cables and BIM.
The analysis behind a connection offer or compliance submission — carried out so the results stand up to network-operator scrutiny.
Converter station control and protection is where we started, and it remains our deepest specialism.
Solar, onshore and offshore wind and battery storage — from grid connection strategy to energisation.
Independent design assurance and delivery support for the people who own the risk.
Specialist practice
Converter station control and protection is where Unit Vector Solutions started. Our HVDC consultants define scheme parameters, specify control and protection, and witness the testing that proves it — and because the same firm designs the AC yard, a converter station and its substation can be engineered by one team.
Functional specifications, sequences and protection philosophy for LCC and VSC schemes.
Development and independent review of main circuit parameters and reactive compensation.
Test specification, execution and witnessing on real-time simulator and replica platforms.
Export links, interoperability and interface review across vendors and terminals.
Sectors
The engineering is common; the constraints are not. We adapt to the standards, governance and commercial model of each sector we work in.
New-build, extension and refurbishment substations for transmission and distribution operators and their delivery partners, including protection and control replacement programmes and framework support.
Solar farms, battery storage and onshore or offshore wind — connection design, compliance evidence and the electrical balance of plant behind the meter.
Converter station control and protection, scheme parameters, sequence design and owner-side technical assurance on long-lead DC schemes.
Private HV and MV networks, resilience studies, load-management systems and plant upgrades where an outage costs more than the works.
How we deliver
Clients join us at whichever stage they need. The value of covering all five is that decisions made early are made by people who know what they cost later.
Options, constraints, connection strategy and an honest view of cost and programme risk.
FEED through detailed design, studies and specification, co-ordinated across primary and secondary.
Tender packages, technical evaluation, supplier negotiation and delivery expediting.
Issued-for-construction drawings, technical queries, temporary works interfaces and site support.
FAT and SAT, settings application, energisation support and as-built close-out.
About Unit Vector Solutions
Unit Vector Solutions Ltd is an independent UK consultancy. Our engineers have spent their careers inside utilities, OEMs and tier-one contractors, which means we understand the standards a design will be judged against and the commercial pressures on the people asking for it.
We stay deliberately lean. Clients deal directly with the engineer doing the work, our overheads stay low, and we bring in trusted specialists rather than pretending to cover everything in-house.
Standards & assurance
A short conversation is usually enough for us to tell you whether we are the right people, what the work involves and roughly what it will take. If we are not the right fit, we will say so.