Frequently Asked Questions

What stage of development have the technologies reached?

Wind engines have been developed for wind tunnel tests, outdoor tests on 1:20 scale models and full scale land-based tests at Port of Blyth in Northumberland.  The next stage is pre-production models for sea trials.

What reduction can I expect from the Turbo Foil aerodynamic drag kit?

Our wind tunnel tests based on scale models of the cranes and superstructure of a Supramax bulk carrier show a reduction in above deck drag of at least 20% resulting in a typical fuel reduction of 50 tones of fuel per ship per year resulting in a CO2 saving of just over 150 tons.

What reduction can I expect from the Wind Engines?

Tests at full scale supported by 4 years actual ships? log data on wind speed and direction for a small bulk carrier fleet show average savings of around 13% per ship per year. This would typically result in savings of around 1,000 tons of fuel (worth US350,000 a year with bunkers at $350 per tone) and over 3,000 tons of CO2.

Who verifies the performance of the Wind Engine technology?

The design and components of the full scale test model together with methodology for calculation of performance results and calibration of test equipment and test process has been approved by Lloyds Register who have issued the appropriate type approval certificates.

How do I find out if Greenwave technologies would suit my ship(s)?

Contact Greenwave on 020 7977 1734 and we will discuss with you the vessels you operate, the routes they serve and suitability of Greenwave technologies to reduce your fuel and emissions.

Who manufactures and fits the technologies?

The technologies are manufactured and fitted by experienced maritime engineering companies who have been licensed by Greenwave  to supply and fit the technologies to the standards specified by Greenwave and approved by Lloyds Register.

What do they cost?

Precise costs will be given after a preliminary survey. As a guide, each Wind Engine costs between US $200,000 and ?250,000.

How long is the payback?

Payback calculations are subject to a) exchange rates with the US dollar and b) the price of bunkers.

As a guide, bunkers at US$350 per ton will deliver a payback within approximately 2.2 ? 2.8 years.

What routes are best for Grenwave technologies?

The Turbo Foil aerodynamic drag kit will be most appropriate for vessels regularly sailing routes with the wind on the bow.

Wind engines cannot be sailed into the wind but vessels with voyages where the wind is on the beam (and particularly in the aft quarter) will find the payback well above the average.