Thanks to our innovative electric propulsion drive system, our electric catamarans save a lot of energy.
Our 1120 Ah, 48 V lithium battery bank (by MG Energy) recharges using renewable energy sources first: solar power, hydrogeneration, and wind power.
When sailing on the motor, the electrical draw, connected with the power needed to counteract the drag of the hulls, increases exponentially between 6 and 8 knots. At 6 knots, the Windelo 50 consumes 10 kW. The electrical draw increases to 15.57 kW at 7 knots, and then to 27 kW at 8 knots.

• At 6 knots, the Windelo 50 has a range of nearly 4 hours and roughly 22.7 nautical miles per day with an 1120 Ah battery bank.
• At 7 knots, the Windelo 50 has a range of nearly 2 hours and 17 minutes and roughly 15.47 nautical miles per day with an 1120 Ah battery bank.

When the energy consumed is not compensated by renewable energies, the 18 kW backup 500 L diesel generator(s) start(s) up to supply the electric motors and recharge the batteries. The generator is in the aft engine bays and communicates with the Boat Management System. It starts up automatically when the batteries are low and/or when the power required is greater than the power the batteries can supply. So, the full cruising range of our catamarans on the motor is 1100 nautical miles. The generator can also be started manually by the skipper in 2 different modes:

• Cruising range mode: for example, the skipper wishes to start his generator to increase his cruising range when there is no wind.
• Recharge mode: the skipper starts his generator, which automatically switches off when the batteries are fully charged.