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Marine Electrofit Atelier
French marine electrification studio

Electric conversions for motor yachts engineered around range, silence, and modern marina life.

Our atelier develops tailored electric and hybrid propulsion upgrades for private motor yachts, transforming conventional vessels into cleaner, quieter, and more efficient craft without sacrificing elegance or practical performance. We combine naval engineering analysis, drivetrain integration, battery planning, charger architecture, thermal management, and owner-focused usability so each project feels like a thoughtful evolution rather than a compromise. From day cruisers and chase boats to premium leisure yachts operating on rivers, lakes, and coastal routes, we help owners modernize propulsion while improving onboard comfort, reducing vibration, simplifying service demands, and preparing vessels for a lower-emission future.

Quiet

Near-silent maneuvering and calmer guest experience in marinas and anchorages.

Smart

Integrated energy logic, battery oversight, and charging pathways designed around real usage.

Refined

Engineering upgrades delivered with respect for yacht aesthetics, balance, and serviceability.

Electric motor yacht at a marina
Marine engineering team planning an electric yacht retrofit
About us

We approach yacht electrification as a balance of engineering discipline, owner comfort, and long-horizon value.

Our team was formed around a simple observation: many yacht owners want cleaner propulsion, reduced noise, and improved low-speed efficiency, yet standard marine repower offers often ignore the realities of luxury use, onboard hotel loads, vessel balance, and marina charging logistics. We therefore build conversion strategies that begin with the boat itself—its hull form, weight distribution, operating profile, maneuvering requirements, accommodation loads, and owner expectations. This technical groundwork lets us specify electric motors, reduction systems, battery modules, cooling arrangements, control interfaces, and charging equipment that suit the vessel instead of forcing the vessel to suit a generic package.

Beyond propulsion hardware, we coordinate the entire modernization path with a yacht-minded perspective. That includes digital monitoring, shore-power compatibility, energy safety design, equipment placement, service accessibility, thermal protection, documentation support, and transparent performance modelling for realistic cruising patterns. Owners and operators receive clear guidance on what can be fully electric, what benefits from hybrid architecture, and how to optimize the relationship between propulsion, comfort systems, and future maintenance cycles. The result is an upgrade program that preserves the pleasure of yachting while aligning the vessel with contemporary expectations for efficiency, refinement, and responsible operation.

Company advantages

Six reasons owners choose a specialist retrofit partner instead of a basic repower workshop.

Every project is built around practical operation, premium finish expectations, and technical clarity from first survey to post-launch handover.

Converted yacht systems and electric propulsion details

Yacht-Specific Engineering Assessment

We do not treat electric conversion as a simple engine swap. Each project begins with a yacht-specific feasibility review covering displacement, hull resistance, shaft arrangement, hotel load profile, trim sensitivity, operating waters, maneuvering habits, and owner expectations around speed, comfort, and charging behavior. This allows us to compare full-electric and hybrid pathways with realistic technical consequences, rather than marketing assumptions. We model energy use for harbor work, day cruising, low-noise anchorage transfers, and intermittent high-demand bursts, then translate those findings into architecture choices that are understandable for owners and captains. By resolving these variables early, we reduce redesign risk, protect investment decisions, and create a propulsion strategy that feels coherent across the whole vessel.

Integrated Battery & Safety Planning

Battery integration on yachts requires more than available space; it demands careful consideration of weight concentration, enclosure design, ventilation, temperature stability, emergency isolation, fire containment logic, cable routing, and service access. Our approach combines electrical safety best practice with marine practicality so the battery system supports dependable propulsion without compromising onboard layout or operational confidence. We coordinate module selection, mechanical mounting, battery management communication, and thermal design around the vessel’s real duty cycle. This creates installations that are safer to maintain, easier to inspect, and better suited to premium marine use where reliability, discretion, and long-term support matter just as much as headline capacity figures.

Refined Noise and Vibration Reduction

One of the most immediate benefits of electric propulsion is experiential: smoother departures, calmer social spaces, easier conversations underway, and less fatigue for crew and guests. We design conversions to maximize this benefit through alignment checks, mount selection, acoustic isolation considerations, and low-speed control tuning. Rather than viewing silence as a by-product, we treat it as part of the finished yacht experience. This is especially valuable for owners who use their vessels for entertaining, premium day cruising, waterside hospitality, or regular marina movement where diesel rumble can feel outdated. The outcome is a more elegant onboard atmosphere that supports the comfort standards expected from a contemporary leisure yacht.

Marina-Ready Charging Strategy

Charging design is often the weak point of marine electrification projects, especially when systems are specified without considering marina infrastructure, owner itineraries, berth access, or turnaround windows between outings. We map the vessel’s charging reality from the start, including shore-power standards, charger sizing, cable management, recharge timing, and contingency planning for seasonal or travel-based operation. Where hybrid support is preferable, we frame it around operational resilience rather than novelty. This practical planning reduces downtime anxiety and makes the finished yacht easier to live with in normal use. Owners gain an energy ecosystem they can understand and plan around, instead of a propulsion system that works only under ideal conditions.

Transparent Technical Communication

Marine upgrades can become confusing when owners receive fragmented information from different suppliers. We centralize technical communication so propulsion performance, battery behavior, charging limitations, cooling requirements, instrumentation, and maintenance implications are explained in plain but precise language. This transparency supports smarter approvals, clearer budgeting, and stronger trust throughout the project. Captains, managers, and owners know what to expect in terms of cruising range, recharge time, seasonal care, and service intervals. We also document installation logic and operating guidelines in a structured way, helping future technicians understand the retrofit without reverse-engineering the entire system. Clarity reduces operational mistakes and protects the yacht’s long-term usability.

Future-Focused Modernization Path

A well-planned electrofit should serve not only today’s usage but tomorrow’s standards, marina expectations, and resale conversations. We therefore think in phases: what should be modernized now, what can be prepared for later, and how cabling, monitoring, charger allocation, and component positioning can preserve flexibility for future upgrades. This protects owners from dead-end decisions and allows the vessel to evolve with changing energy practices. By aligning propulsion renewal with broader onboard modernization, we help transform legacy motor yachts into more contemporary assets—cleaner to operate, more pleasant to use, and easier to position in a market that increasingly values efficient, forward-looking marine systems.

Services

Complete retrofit support from feasibility and design through commissioning and owner handover.

Our service structure is meant for owners, representatives, and marine stakeholders who need a coherent upgrade pathway instead of isolated equipment supply.

Luxury motor yacht prepared for electric conversion service

Electric & Hybrid Feasibility Studies

We perform initial vessel reviews that examine propulsion loads, operational profile, speed expectations, charging access, battery placement opportunities, thermal constraints, and budget logic. These studies help determine whether a yacht is best served by full-electric propulsion, serial hybrid assistance, or a staged modernization path. Owners receive grounded technical direction before committing to hardware decisions.

Propulsion System Design & Integration

We specify electric motors, controllers, reduction components, shaft interface solutions, power electronics, and auxiliary energy architecture around the vessel’s layout and intended use. Attention is given to service access, control ergonomics, structural accommodation, and marine compliance-minded installation planning so the conversion operates as a unified system rather than a collection of parts.

Battery, Charging & Energy Management

This service covers battery bank design, enclosure strategy, charger configuration, shore-power compatibility, energy dashboards, and owner guidance on daily operating routines. We create energy systems that support propulsion while respecting hotel loads and marina realities, giving owners confidence in how the yacht performs during real outings.

Installation Coordination & Yard Support

For active conversion projects, we coordinate integration steps with yards, specialists, electricians, and fabricators to keep technical intent aligned throughout implementation. We review mounting logic, cable pathways, cooling arrangements, instrumentation placement, and system interfaces so the final result reflects both engineering integrity and premium finish expectations.

Commissioning, Testing & Owner Handover

After installation, we support commissioning procedures, systems verification, dockside checks, and on-water testing workflows to confirm that propulsion response, charging behavior, monitoring, and safety functions perform as intended. Documentation and orientation materials are structured to help owners and crew adopt the new system with confidence.

Upgrade Roadmaps & Long-Term Planning

Not every vessel needs a full conversion at once. We also prepare phased modernization roadmaps that prioritize the most valuable improvements first while preserving compatibility for later battery expansion, digital monitoring upgrades, or broader onboard electrification. This approach protects capital while keeping the yacht on a credible path toward cleaner marine operation.

Contacts

Discuss your yacht conversion project with a team focused on practical marine electrification.

We support early-stage assessments, retrofit planning, and structured project conversations for owners exploring electric propulsion on leisure motor yachts.

Address

11 Quai du Président Paul Doumer, 92400 Courbevoie, France