STOK Electric Hybrid Boat Drives

Name: STOK Electric Hybrid Boat Drives
Brand: Stok Electric

Serial and parallel hybrid propulsion systems combining 10-200 kW electric motors with diesel engines up to 900 hp or generators up to 200 kW, with LiFePO4 batteries and integrated controls.

Description

STOK Electric Hybrid Boat Drives are integrated serial and parallel hybrid propulsion systems for new builds and retrofits, combining electric motors of 10-200 kW with diesel engines up to 900 hp or generators up to 200 kW.

Configurations

Parallel hybrid: electric motor combined with a diesel engine, for vessels needing high power and speed; the electric motor typically provides 30-50% of the diesel power needed for nominal cruising speed
Serial hybrid: electric-only propulsion from batteries, supported by a generator sized at about 40-50% of the motor power; suited to low-speed or silent operation
Power segments: 10-30 kW, 40-90 kW, 100-200 kW

System components

Scalable LiFePO4 propulsion battery pack
Power distribution unit with plug-and-play architecture
Direct-drive electric motor (EPM series, 11-200 kW)
Bidirectional DC/DC converter linking 12/24 V service and high-voltage batteries
Marine generator up to 200 kW
Aluminium throttle, button panel and NMEA2000 display integration

Charging via shore power, generator or solar. Manual or automatic mode switching based on speed, load or state of charge.

Applications

Motor yachts and sailing yachts
Ferries, workboats and commercial vessels

OMEGA Suction & Bayonet Heaters

Flange-mounted laser-plate heaters inserted through the tank side: bayonet heaters for energy- and water-saving tank heating, and shrouded suction heaters that warm viscous cargo or fuel right at the pump suction.

Equipment

Everllence

Everllence 49/60DF Dual-Fuel Engine

Medium-speed dual-fuel marine engine, in-line 6–10 or V12/V14 cylinders, 7,800–18,200 kW, with Common Rail 2.2 injection, two-stage turbocharging and SaCoS 5000 control, for mechanical or electric propulsion.