Seagoing Hybrid Systems
Custom-engineered parallel hybrid solutions for offshore monohull sailboats, cruising catamarans, inspection launches, and water taxis.
Custom Engineering for Offshore Craft
No two offshore hybrid requirements are identical. Whether outfitting blue-water monohull sailboats, performance cruising catamarans, or commercial inspection launches, Hybrid Marine collaborates closely with naval architects and boat builders to tailor integrated parallel hybrid drivelines to exact vessel displacement and operational duty cycles.
Seagoing Driveline Architectures
Single-Motor Parallel Hybrid
Ideal for offshore sailing monohulls and light commercial vessels. This system pairs a single marine diesel engine with an electric motor/generator mounted parallel to the drive shaft.
- Silent Harbour Operation: Manoeuvres quietly in marinas and anchorages under pure electric power.
- Underway High-Output Generation: Converts diesel propulsion into high-kW 48V battery replenishment when motoring.
- Engine Compatibility: Built on industry-standard Yanmar Common Rail and Beta Marine diesel platforms.
Typical Single-Motor Parallel Hybrid System Assembly
Auxiliary Parallel Drive System
Designed for heavy-displacement seagoing yachts and commercial craft that require extended diesel range alongside substantial electrical power generation.
- Optimal Engine Loading: Uses energy buffering to run larger engines at peak thermal efficiency curves during generator mode.
- High Domestic Support: Powers onboard domestic loads, air conditioning, and watermakers without running a separate generator.
- Heavy Duty Integration: Matches Beta 75–150 hp and Yanmar diesels with heavy-duty hydraulic gearboxes.
Auxiliary Parallel Hybrid System Architecture
Catamaran / Twin Shaft Hybrid System
A specialised dual-hull driveline solution combining a complete Parallel hybrid on one hull shaft with a dedicated Electric drive motor on the second hull shaft.
- Weight & Space Savings: Eliminates the weight, cost, and maintenance of a second diesel engine on twin-hull catamarans.
- Balanced Twin Engine Power: Motor under diesel power on shaft A while generating battery charge, while shaft B runs under electric motor power for straight tracking.
- Hydro-Regeneration: Regenerates power from freewheel propellers on both shafts while under sail.
Catamaran / Twin Shaft Hybrid System Layout
Offshore Operational Advantages
System Functions & Capabilities
- Silent Electric Motoring: Navigate anchorage zones, marinas, and delicate coastal reserves with zero engine noise or exhaust fumes.
- Hydro-Regeneration Under Sail: Extract valuable electrical power from the freewheeling propeller while sailing on open passages.
- At-Anchor Stand-Alone Generator: Operates as a stationary high-output generator to charge house battery banks and support heavy AC loads like air conditioning.
- Extended Cruising Range: Significantly improves diesel fuel efficiency at low-to-mid speeds for long passage making.
- Essential Safety Redundancy: Dual independent transmission paths—electric motor drive gets you home if diesel fuel is contaminated, and vice versa.
- Off-the-Shelf Engine Integration: Compatible with Yanmar Common Rail and Beta Marine diesels for factory-level service and global parts availability.
Download Detailed Seagoing Hybrid Package Technical Specifications
Explore commercial passenger ferries, workboats, and eco-tour vessels.
Commercial Craft →