An Atlantic crossing powered by batteries for 72% of the journey
Following the Atlantic crossing completed by the solar-electric Silent 62 3-Deck Open “100%”, we are glad to share the main performance data from the voyage between Gibraltar and Antigua.
Over a distance of around 3,800 nautical miles, completed in 25 effective travel days, the yacht crossed the Atlantic using electric propulsion throughout the journey. Energy was stored in batteries and replenished through solar input, with limited generator use when required. Total fuel consumption for the entire crossing was about 5,500 litres, approximately 40% less than a conventional 60-foot motor-driven catamaran over a similar distance.
During the voyage, the onboard solar array generated a total of about 1,250 kWh. Given that the crossing took place during winter in the Northern Hemisphere, even higher solar gain would be expected in summer conditions.
The route was completed in four legs, each with different weather and sea conditions. From Gibraltar to Agadir, higher average speeds were needed to deal with adverse weather. The following leg to Lanzarote was affected by strong headwinds and swell. Between Lanzarote and Cape Verde, the yacht encountered trade winds from the north, before benefiting from more favourable following winds and equatorial currents on the final and longest leg to Antigua.
Watch Steve Bell’s reflections on the Atlantic crossing, recorded just after arriving in Antigua.
