eConowind unit

eConowind offers an innovative foldable and autonomous unit for wind-assisted ship propulsion, helping to propel a variety of coastal vessels.

The eConowind unit is based on a 40 ft sea container and can quickly be placed and removed. Giving a flexible solution for a variety of vessels such as general cargo vessels, tankers or other vessels with room for one or two 40 ft sea container(s).

The Ventifoil is a wing shaped element using modern innovations in aerodynamics creating high propelling force relative to its size. Smart suction is integrated in the wing, resulting in double the force of the Ventifoil while reefing when needed.

The Ventifoils can be rotated automatically to find the optimal angles relative to the apparent wind. The generated force will be transferred right into the deck and thus helping with propulsion of the vessel. To maintain the ships optimal speed, the engine power can be reduced.

In heavy and/or unfavourable wind conditions the Ventifoils can be easily stored in the container.

All equipment, like hydraulics, automation and ventilation are integrated in the containerised unit. The only support of the vessel to the unit is 400-460 V, 3 phase, 50-60 Hz power connection.

Currently a prototype is being tested on sea (picture), after an optimization step with the prototype, production can start mid 2019.

Predicted savings

The goal of the eConowind unit is to reduce fuel costs and CO2 emissions by reduction of used main engine power. Due to the generated thrust by the eConowind-unit, the thrust of the propeller can be reduced to maintain the same speed. This leads to fuel savings and emission reductions of 10 to 30%, depending on vessel type and number of eConowind-units, what brings us closer to IMO’s goals on reduction of carbon emissions.

Technical specification

Main particulars

  • Deployed: 12.20 x 2.44 x 13.30 m
  • Closed: 12.20 x 2.44 x 02.60 m
  • VentiFoil: 1.80-1.30 x 1.10 x 10.30 m
  • Weight (complete): 9600 kg
  • Material container: steel
  • Material Ventifoils sails: aluminium

Electrical particulars

  • Power supply: 18 kW
  • 3 phase, 400-460 V @ 50-60 Hz
  • 3 phase, 400-460 V @ 50-60 Hz

Operational conditions

  • Max. operational apparent wind speed: 17 m/s
  • Thrust (max. contiuous): 25 kN

Typical forces per container fitting (vessel specific)

  • pull (up) / push (down) 80/140 kN
  • Shear (forward) / Shear (sideways) 40/40 kN

Unique selling points

  • High fuel savings due to modern aerodynamics

  • Your vessel “Green” in just a few hours.

  • Easy installation at container positions by means of twist locks.

  • Foot print of a 40 ft container

  • ‘Plug and Play’ installation

  • Easy (re)moveable

  • Supported equipment inside the container, no additional equipment on the vessel.

About us

eConowind is a Dutch based company, related to HCP in Amerongen and Conoship international, a ship design and engineering office in Groningen. eConowind is fully dedicated in developing, building and testing a wind-assisted propulsion unit: the eConowind-unit.

The development of the eConowind unit is supported in the form of a subsidy by the European Union and the three northern Dutch counties (SNN) with the VIA funding for regional development.

The project is being carried out in seven stages. It starts with the building and testing of an 1:2 scale test model in early-2018 and ends mid-2019 with the test execution of the complete working prototype on a vessel at different sea states.

After the construction of the actual size prototype mid-2018, the focus of the development team will shift to the automation and control of the unit. In provision of the final stage to install the unit on a vessel.



Contact us

Visiting address:
Leonard Springerlaan 9
9727 KB Groningen
The Netherlands

Postal address:
P.O. Box 6029
9702 HA Groningen
The Netherlands

T +31 (0)50 526 88 22
F +31 (0)50 525 22 23
E econowind@econowind.nl