Low Emission Water Transport for Urban Waterways

Medaka Eco Commuter Ferry

The Medaka solar electric eco-ferry or eco commuter ferry is being developed by Eco Marine Power (EMP) and it's strategic partners with the aim of providing a cost effective water transport solution for the low carbon & clean energy cities of the future.

The Medaka includes a range of cutting-edge technologies such as an advanced battery management system, Lithium NMC battery technology, electric propulsion and a unique marine solar panel array. These technologies will work together to dramatically reduce fuel consumption and the emission of noxious exhaust gases.

Primarily the Medaka is designed to operate as a urban commuter ferry but it could also fulfil the role of a sightseeing vessel or tourist cruiser for example. The Medaka could also operate like the water transport equivalent of light rail. It will be light, nimble and able to operate totally emission free when running on batteries.

In addition this eco ferry will be significantly quieter than existing commuter vessels which is becoming increasingly important in cities where residential homes are located along waterways.

As part of the Medaka design project Eco Marine Power is also looking into the wider aspects of how commuter ferries can be better operated and methods to reduce maintenance costs by using for example, the Aquarius Monitoring and Automation System or Aquarius MASTM.

For example advanced hyrbid battery technology is being incorporated into the design of the Medaka. These batteries are not only 99% recyclable but also require no maintenance. In addition they are fully sealed thus removing the danger leaking chemicals may pose to the environment.

Medaka Eco Commuter Ferry (Preliminary Information)

Length 22 metres Cruising Speed 10-12 knots
Beam 12 metres Solar Lightweight marine  panels
Draft 1.5 metres Energy Storage Hybrid VRLA batteries
Height 4 metres Propulsion Solar-electric hybrid power system
Passengers 100-150 Power Management Integrated HMP with BMS
Vessel Type Twin Hull
Construction Marine aluminium

Other Features:

  • Rapid battery re-charging technology.
  • Advanced propulsion control system.
  • Eco-mode (all electric operation) function.
  • Integrated Aquarius Management & Automation System (MAS)

See also: Medaka Solar-Electric Ferry Medaka Media Downloads Tonbo HMP Vessel


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Hybrid marine power solutions including solar power save fuel, reduce pollution and are cost effective. Eco Marine Power is at the forefront of developing low emission & fuel saving solutions for ships, Our computer systems also provide a control interface between renewable energy & other systems on-board ships.
Eco Marine Power is at the forefront of providing innovative marine renewable energy technologies for shipping that harness the power of the sun & wind. These solutions include Aquarius MRE, EnergySail & Aquarius Marine Solar Power. These reduce fuel consumption, lower noxious gas emissions and deliver cost benefits.
Aquarius Management & Automation System or Aquarius MAS is a cost effective alarm handling, monitoring & data logging platform suitable for a wide range of ships. The system is based upon the reliable KEI 3240 Data Logger and is class approved. Aquarius MAS can also monitor fuel use & calculate vessel emissions.
Our design & consulting services include green ship & eco ship concept designs, renewable energy surveys, renewable energy systems design & consulting support for new ship and retrofit projects. We work with ship owners, ship managers and ship yards to develop the right renewable energy solution for their needs.
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