WaterWorld electric inboard motor 4–20 kW 48 V (i and hybrid)

• Reliable. Proven Dutch technology and simple installation ensure you can rely on the WaterWorld drive. That provides peace of mind.
  
  
• The motors have CESNI certification. This means they meet the stringent requirements for professional installation. For a pleasure craft, it is a sign of top quality; for a commercial vessel, it is a hard requirement.
  
  
• The WaterWorld motors are brushless asynchronous electric motors, which are powered by a 48 V battery pack and drive the propeller shaft directly.
  
  
• Quiet and clean. WaterWorld motors operate in complete silence. The quiet motor drives the shaft without gears. Enjoy the tranquility this provides and the clean air!
  
• Sustainable also means: Made in Holland. The WaterWorld systems are made in our own country by the craftsmen at Water World Electronics. And not in low-wage countries far away. And that means: no transporting products halfway around the world.
  
  
• Simple to install with adjustable motor mounts, which fit most existing foundations.
  
  
• Motor and electronics in one, equipped with air cooling. Water cooling is unnecessary. Highly efficient – Affordable and longer sailing. The WaterWorld motor is so efficient that it produces little heat. That is why no water cooling is needed! This makes installation easier, there is no chance of blockages, and maintenance is minimal. Once on the water, another major advantage becomes clear: you can sail your boat for longer.
  
  
• Modern technology and design. When you lift the hatch, you see the sleekly designed motor and electronics. In daily use, it is mainly the modern touchscreen color monitor and the design of the throttles that stand out. In addition to the standard included display, it is also possible to see all information on your NMEA screen or on your iPad via the special WaterWorld app (iOS integration).
  
  • Information about the gear position of the control lever: forward, neutral, reverse
  • Actual motor power in Watts
  • Number of revolutions per minute
  • Remaining sailing time
  • Notifications:
    • including voltage too low or too high
    • motor temperature too high, RPM lower than 70% of the expected RPM and less than 500 RPM
    • measured speed is less than 85% of the expected speed at maximum power
    • the measured RPM is equal to the expected RPM, but the current is less than 80% at maximum power.
      
• Suitable for intensive and professional use. WaterWorld systems are also used in charter ships, tour boats, and workboats. The robust motors, which can also deliver maximum power continuously, make this possible. The same applies to the WaterWorld batteries, which can handle up to 3,000 cycles while retaining virtually all energy.
  
  
• A complete system with 3 years warranty: that provides peace of mind. WaterWorld components are integrated into a single system. Via a CAN data connection, the motor, controller, batteries, display, and throttle work seamlessly together. This way, you always have the necessary information on your display regarding the condition of the motor and batteries and the remaining range.
  When purchasing a complete set, i.e., motor, WaterWorld batteries, charger, and DC distribution set, in combination with the mandatory commissioning and annually prescribed maintenance, 3 years warranty applies.
  
  
• In a hybrid situation: Regeneration can occur via two routes: via the propeller while sailing, or when a diesel engine rotates the propeller shaft. When at anchor without a rotating shaft, regeneration is not possible. The regeneration output in kW depends on the chosen system. In theory, a WW motor can regenerate its nominal power; in practice, this and more depends on settings and conditions.
  
  
• In a full electric situation with a sailboat, depending on the speed from 10 kilometers per hour, you should think of 500 W to 2 kW; in a hybrid setup (rigid connection to the propeller shaft) you can reach up to 8 kW. This option is available for the 10 kW and 20 kW motor: WaterWorld Regeneration package for hybrid or regeneration on sailboats 695,-.
  
• Replace diesel engine? A new diesel inboard engine is no longer an option, also because WaterWorld is more economical!
  • 30 hp diesel: more than 100 kilograms, 80 dB (loud conversation), 25% efficiency, annual oil change, winterization, environmental pollution.
    vs
    10 kW WaterWorld: 76 kilograms, 45 dB (inaudible on the water), more than 85% efficiency, no maintenance, environmentally friendly.
    
    
  • Or consider an even more economical pod motor.
    
    

Reviews

Models

• 4.0: Powerful compact inboard electric motor. This has a continuous power of 4 kW and a peak power of 4.8 kW.
  • Comparable to an 8 hp (propulsion power) to 12 hp (thrust) fuel engine.
  • The motor is suitable for bringing boats up to 3,600 (4,300 with peak power) kilograms to cruising speed and boats up to 1,200 (1,400 with peak power) kilograms to hull speed. Assume a consumption of 1.3 kWh per hour and 3 hours of sailing with a 4 kWh battery. At 8 kilometers per hour, the range is then 24 kilometers. Sufficient for most boaters.
  • Maximum power input (S1): 4.4 kW
  • Maximum current: 92 A
  • Nom. revolutions per minute: 1450 rpm. The motor can also be delivered in a version with 750 or 3,000 rpm.
  • Dimensions: (l × w × h) 55.8 x 22.5 x 22.1 centimeters. The controller can optionally be placed separately for more flexibility.
  • Weight: 39 kilograms
  • Mounting width: 29 - 40 centimeters
  • Torque: 27 Nm
    
    
• The 10.0 i has a continuous power of 10 kW and a peak power of 12 kW.
  • Comparable to a 20 hp (propulsion power) to 30 hp (thrust) fuel engine.
  • The motor is suitable for bringing boats up to 9,000 (11,000 with peak power) kilograms to cruising speed and boats up to 3,000 (3,600 with peak power) kilograms to hull speed.
  • Assume a consumption of 4 kWh per hour and 4.5 hours of sailing with an 18 kWh battery. At 10 kilometers per hour, the range is 45 kilometers. Sufficient for most boaters.
  • Maximum power input (S1): 11 kW
  • Maximum current: 230 A
  • Maximum speed: 1,450 rpm
  • Dimensions: (l × w × h) 68.1 x 29.0 x 27.1 centimeters. The controller can optionally be placed separately for more flexibility.
  • Weight: 76 kilograms
  • Mounting width: 34 - 47 centimeters
  • Torque: 64 Nm
    Example: the motor yacht Duna 8.5 is equipped with a 10.0i WaterWorld (see video on this page) or the Maril 7NXT and the TendR23 (see photos).
    
    
• The 20.0 i has a continuous power of 20 kW.
  • Comparable to a 35 hp (propulsion power) to 50 hp (thrust) fuel engine.
  • The motor is suitable for bringing boats up to 18 tons! to cruising speed and boats up to 6 tons to hull speed. Assume a consumption of 7 kWh per hour and 4 hours of sailing with a 27 kWh battery. At 10 kilometers per hour, the range is 40 kilometers. Sufficient for most boaters.
    • Maximum power input (S1): 20 kW
    • Maximum current: 400 A
    • Maximum speed: 1,450 rpm
    • Dimensions: (l × w × h) 76.2 x 30.7 x 30.0 centimeters. The controller can optionally be placed separately for more flexibility.
    • Mounting width: 29 - 40 centimeters
    • Torque: 115 Nm
      
      
• For heavier boats, the ePropulsion I-10, I-20, I40, H-100 Electric inboard motor 10-100 kW 96 V is available.

• Example AdmiralsTender 28: With 16 kilometers per hour, this goes above the hull speed, which is a step faster than you would expect. The electric motor is combined with three Torqeedo 5 kW lithium batteries. Good for a full day of boating. With the fast charger, the batteries can be charged in a few hours.
  
  

Hybrid.
WaterWorld systems can also function perfectly in a hybrid setup. Both parallel-hybrid: with a diesel and WaterWorld both driving the propeller shaft. And also as serial-hybrid where the internal combustion engine of a generator converts mechanical energy into electric current to store in batteries and power the WaterWorld motor.

Two parallel versions: 4 kW Hybrid version 4.0i and 10 kW Hybrid version 10.0i.

• For parallel-hybrid, customization is required and we need the following information for a proposal:
  • Make and model of boat and water length and displacement.
  • Wishes regarding speed, sailing time, and range.
  • Is recharging while sailing on diesel desired.
  • Engine make and model.
  • Maximum RPM of diesel engine.
  • Speed at 1,500 rpm with diesel.
  • Make and type of gearbox (and reduction of the gearbox).
  • Available space around the gearbox.
    Space above the gearbox or further aft around the propeller shaft is necessary. Space in front of the diesel engine is not usable.
  • Maximum applicable diameter for a gear pulley immediately after the gearbox. Common sizes are 135 or 155 mm.
  • How is the propeller shaft supported and (regarding force distribution) at what position? Please also provide photos of this.
  • Space around the propeller shaft/gearbox flange regarding diameter.
  • Gear ratio.
  • Angle of the setup.
  • Setup of propeller shaft and bearing (support bearing, python drive present).
  • Water lubrication propeller shaft; water scoop / auxiliary pump during electric sailing?
  • Type of propeller. This is for determining performance speed/torque.
  • What is known about the propeller and the speeds at certain RPMs?
  • Ventilation inlet and outlet openings engine room.
  • Available space for batteries.
    
    

• Hybrid WaterWorld options:

1. A new Hybrid diesel engine complete with WaterWorld 4.0i mounted:
   27 hp Craftsman CM3.27 hybrid or 42 hp Craftsman CM4.42 hybrid. Includes Twin Disc Technodrive TMC60-2R gearbox, Craftsman Alfa 20E panel with meters, and flexible motor mounts. Prices are listed on this page.
   
2. A WaterWorld motor can be mounted above or next to the propeller shaft on a bracket equipped with a pulley. WaterWorld pulley set consisting of 2 toothed belt pulleys and Taperlock clamping bush for propeller shaft and a toothed belt (HTD 30 - to be measured after installation). 455,-
   1. WaterWorld offers a standard hybrid solution for Vetus 27, 33, and 42 hp diesel engines. A proven and extensively tested hybrid drive. Ready-to-use frame hybrid Vetus Frame (see photos) for placing WaterWorld 4.0i next to Vetus diesel with 8-degree gearbox € 1,655
      
   2. For customization of the bracket construction, a welding or construction company or shipyard will need to be engaged to weld a frame.
      First, it must be determined how many kW electric motor is needed and what diameter pulleys, then the dimensions of the frame can be determined, as well as the legs for mounting on the hull or the foundation (frames). Usually, this is about 1 day of work + materials (estimate 150,-) such as (stainless steel) angle iron, bolts, threaded rod for tensioning, welding electrode, etc.
      Marinaut can provide the necessary drawings for this.
   3. A separate motor bracket standing on its own foundation above or next to the propeller shaft. The propeller shaft is fitted with a pulley, with a toothed belt providing the transmission. Since the electric motor is on vibration dampers and the toothed belt is put under tension (via a tensioner roller), the alignment of the electric motor must be adjustable.

• Hybrid installation time is therefore entirely dependent on, among other things, engine mounting, 4 - 6 days.

• References with WaterWorld hybrid:
  - Aquatec for e.g. Maril 7NXT, 42 hp Vetus standard hybrid option, sailing reference
  - De Kapiteinssloep, Yanmar / Volvo Penta hybrid option, sailing references
  - Qrafter Boats, standard full electric, optionally with 42 hp Vetus hybrid
  - Alumax RJ 28, hybrid option with Mercury 190 hp, sailing reference
  - Enkhuizensloep 615, hybrid option, sailing references
  
  
• Saildrive 1,615.-
  For new builds and retrofit conversion kit: your current cable control system remains untouched, thanks to the innovative installation block, which seamlessly regulates the electric motor speed while maintaining the integrity of the forward and reverse gears.
  Transform your vessel from diesel-dependent to electrically efficient in one day. The WaterWorld saildrive is flanged onto the existing gearbox and allows for seamless integration into your sailboat.
  Saildrive 10.0S for WaterWorld 10.0 kW 1,500 rpm and Saildrive 20.0S for WaterWorld 20.0 kW 1,500 or 3,000 rpm. Can be combined with the most common saildrives from, e.g., Volvo Penta (110s, 120s, 120sb, 130s), Technodrive Seaprop 60, and Yanmar (SD20, SD25). For re-motorization, retrofit, and as new propulsion including saildrive.

• WaterWorld Brochure
  
  
• WaterWorld Manual

SPECIFICATIONS

• Voltage: 3 X 34 Vac @ 50 Hz
• Insulation class: H (185 degrees)
• Thermal protection: PTY84-130 degrees Celsius
• Maximum temperature: 135 degrees Celsius
• Output shaft: 38MM / 28MM (depending on motor type)
• Cooling: Air-cooled, fan on shaft
• Maximum temperature: 85 °C
• Cooling: Air, 2 fans
• Electric motor control: sensorless
• Regulation: Rotation and hall sensor determined forward/reverse. (WW-017) Potentiometer + hall sensor for extra control and safe operation. (WW-016)
• Waterproofing of motor and controller: IP65 dust-tight and resistant to water jets
• Relay Voltage: 48 V DC
• Display Power supply: via motor controller

At Marinaut, this is included:

• Main battery switch
• ANL fuse with fuse holder
• Motor including controller (1 unit)
• The motor and motor controller are pre-mounted in a strong stainless steel frame. The frame is equipped with 4 adjustable stainless steel supports so that the motor can be perfectly aligned with the propeller shaft.
• Thrust bearing integrated into the motor, shaft equipped with a flange to attach a counter-flange (not included) to mount the propeller shaft (not included).
• Controller
• 48 V relay
• Power cables of 0.5 and 1.0 meters already connected to the motor controller
• Digital touchscreen color display with 2 data cables (1 meter and 3 meters)
  
• Ignition switch with keys
• Throttle and 3-meter RJ45 data cable
  

Accessories, options, and installation parts

• Batteries excluded
  • WaterWorld 6.8 kW 48-6800 battery with battery charger. WaterWorld batteries guarantee regeneration and also include support and an extended warranty: 5 years provided.
  • Other LiFePO4 batteries are also available.
    
    
• Extra power cables with pressed cable lugs and busbars available custom-made.
• Propeller shaft counter-flange (25/30/35/40 mm). This is often already on your boat. The counter-flange depends on your propeller shaft diameter. Most sloops have 25 mm. Some have 30, and very few have 35 or 40 mm. However, it is the case that sloops being converted that had a heavy diesel engine more often have a 30 mm or larger diameter propeller shaft.
• Propeller shaft excluded.
• Propeller excluded (advice for propeller). The propeller must be matched to the motor (power, torque, rpm) and the boat (length, width, hull shape). In a conversion, the propeller may need to be replaced. We can advise on this based on a possible calculation and supply the propeller.
  
  
• 15 A battery charger suitable for 1 or 2 WW 48-6800 batteries, IP65 waterproof (850 W, 4 A at 230V) € 425
• 35 A battery charger suitable for 1 or more WW 48-6800 batteries, IP65 waterproof (2000 W, 9 A at 230V) € 675
• Victron Multiplus 35A Victron MultiPlus-II 48/3000/35 programmed for WaterWorld batteries, additional cost € 150. Multiple chargers, including a combination of 15 and 35 A, can be used in parallel
• BatteryLink 1-4 Communication module for WaterWorld motor and 48-6800 battery, suitable for 1 - 4 batteries € 430
• BatteryLink 5-8 Communication module for WaterWorld motor and 48-6800 battery, suitable for 5 - 8 batteries € 495
• BatteryLink data cable 0.5 meter M/F € 25
• BatteryLink data cable 1.5 meter M/F € 35
• WaterWorld BatteryLink data cable 3 meter M/F € 45
• Top-mount lever 'Ball' Additional cost for round top-mount control lever instead of the standard side-mount control € 250
• Top-mount lever 'Lever' Additional cost for new top-mount control lever instead of the standard side-mount control € 250
• Smartshunt set VE.Direct gateway, shunt, and data cables - for displaying external batteries on WW display € 450
• WaterWorld Connect Bluetooth for using WaterWorld Apple iOS app for phone or tablet, including map function € 420

• WaterWorld NMEA Connect This module ensures that motor data is translated into an NMEA 2000 signal. This allows you to display motor data (such as consumption and rpm) on chart plotters from brands such as Raymarine, Garmin, or Simrad. € 420

• Set of vibration dampers 4 vibration dampers 65 shore, incl. M12 pin, suitable for all WaterWorld motors € 130
• Flexible coupling 140 Nm Flexible coupling + propeller shaft counter-flange (25/30/35 mm) - for the WW 4.0i € 275
• Flexible coupling 214 Nm Flexible coupling + propeller shaft counter-flange (25/30/35 mm) - for the WW 10.0i / 20.0i € 430
• Python thrust bearing For the WW 20.0, it is mandatory to use an external thrust bearing, suitable for all motors € 285
• Python-drive complete Set of CV joint, thrust bearing, and adapter flange for full decoupling of motor and drive shaft € 875
• DC distribution WW 4.0 + 1 battery Pre-mounted mounting plate with main switch, fuses, and interconnections € 265
• DC distr. WW 10.0 + 2 batteries Pre-mounted mounting plate with main switch, fuses, DC distribution, and relay € 400
• DC distr. WW 20.0 + 3 batteries Pre-mounted mounting plate with main switch, fuses, DC distribution, and relay € 425
• Battery cable sets 1.5, 3, and 5 m. Battery cables 35 mm² or 50 mm², including connectors, 1.5, 3, or 5 meters from € 95
• Optionally, DC distribution and/or power cabling can be custom-made and included
• Shore power set 16 A. Stainless steel inlet, 15 m shore power cable 16 A, fuse/earth leakage circuit breaker, and CEE/Schuko adapter € 395

• Sentinel Remote monitoring BM50 Lite - GPS location, geofence, battery, shore power, and bilge monitoring (excl. subscription from € 96 excl. VAT p/y, no external antenna possible) € 450

• Sentinel Remote monitoring BM50 Standard - GPS location, geofence, battery, shore power, and bilge monitoring, NMEA 2000, and remote switching (excl. subscription from € 96 excl. VAT p/y) € 895

• WaterWorld Connect Bluetooth with iPhone / iPad app € 420
  Full control over your WaterWorld motor and battery on iPhone or iPad via the WaterWorld dashboard app.
  - perform software updates yourself easily
  - change system settings; e.g., for rental purposes, you can set the maximum power and boost time, you can adjust the rotation direction of the motor, and a second control lever can be added.
  - everything can be secured with a personal PIN code
  - real-time insight while sailing; sailing time, range (with map view), battery status, motor information, and any error messages.
  - display of 2 motors in a twin setup.
  - update controller software
• With the new NMEA Connect, you can easily connect to any NMEA 2000 network.
  - display motor and battery data on screens from Raymarine, Garmin, Victron, and Nextfour - in hybrid mode, assign diesel and electric motor as motor 1 and 2
  - connect with Victron for remote monitoring € 345
• Installation by Marinaut from € 2,995 and Hybrid from € 5,745.
  
  
• Subsidy: electric boat motors and Lithium batteries are eligible for the Environmental Investment Allowance (MIA) and Arbitrary Depreciation of Environmental Investments (Vamil) for vessels used for commercial purposes. The tax benefit with the MIA\Vamil can amount to over 14% of the investment amount.
  
  

  About electric boating

• Benefits of electric boating
• How fast can I sail?
• How much motor and battery power do I need?
• How long and how far can I sail?
• How much money will I save?
• Read all about it here
  and calculate it for your own boat.