Volt Expertise — an independent HV/LV electrical expertise firm. Field measurements, testing, diagnostics and disturbance investigation, across the national territory and for export.
The precision of measurement and hands-on field expertise, serving the reliability and safety of your HV and LV electrical installations.
Pragmatic field expertise to identify, measure and correct anomalies on your HV/LV networks.
Instrumented field measurement campaigns — the foundation of reliable results and autonomous interventions.
Testing and commissioning of protection chains and network equipment, HV/LV.
Rigorous support from specification through to on-site execution checks.
Asset assessment and command of regulatory constraints to secure your investments.
Engineering and numerical simulation studies, delivered in partnership with LDHT Engineering.
We rely on our own precision measurement equipment (power analysers, micro-ohmmeters, thermal cameras) and on the industry's reference software (ETAP, PowerFactory, Elec Calc).
Work for demanding clients, from industry to major events, in France and for export.
A support mission for the testing and parameterisation of electrical equipment for adaptation to Japanese infrastructure.
Harmonic measurement and power-quality analysis campaign to trace the origin of nuisance tripping and overheating on a production installation.
Owner's engineering assistance on a 40 MW datacenter — specification review, technical coordination and execution follow-up through to energisation.
Support for factory (FAT) and site (SAT) acceptance testing for the acceptance of MV substations of renewable-energy plants prior to connection and energisation.
Investigation and measurement of stray voltages and leakage currents affecting livestock — source localisation, corrective measures and expert report.
Analysis of electrical network reliability and continuity of supply in the event of a power outage, to safeguard the critical installations of hospital facilities.
Testing & parameterisation of protection relays on an MV cubicle
Support for measurements on installations — Japan
Measurements on a ground-mounted solar plant
Volt Expertise works in tandem with LDHT Engineering. Where LDHT carries out upstream modelling and engineering studies, Volt Expertise brings the field measurement, expertise and high-precision verification that feed and validate them.
From numerical simulation to physical on-site measurement, this tandem gives you complete command of electrical risk — unique on the Breton and national market.
Volt Expertise is an independent firm specialising in HV/LV electrical expertise, founded by Lény Arribas in 2024, with over 14 years of experience.
A career built within Socotec — from regulatory inspection to technical expertise — then as a technical missions officer at GL Events for the Paris 2024 Olympics, before founding Volt Expertise.
Describe your need, its location and the intended schedule — we'll get back to you for an initial no-obligation discussion.
Contact us