Heesen Electra's hybrid engine system embraces the very best of 21st-century technology. Vast improvements in alternative power systems allow us to meet our increasingly important aims of diminishing our environmental impact. The hybrid system offers irresistible advantages over a conventional diesel-powered system: cleaner, quieter and more fuel efficient.
The engine can be operated in four different cruising modes:
The technology behind hybrid engines is complex, but the operation is simple. Benefits are undeniable, notable from your first time cruising in smooth silence.
Hybrid Mode drives the yacht at speeds up to 9 knots. Power is derived purely from the yachts’ e-motors and generators. Hybrid Mode is beautifully silent, with maximum noise levels in the owner’s stateroom reaching just 46 dB(A) – the sound of softly falling rain. Boxed and insulated generators result in vibrationfree cruising, whilst fuel consumption is no more than 70 litres per hour.
For speeds between 9 and 12 knots, Economic Mode allows you to switch off the generators. Running off the main engines alone, the emotors supply the hotel load.
This is the most conventional mode. The e-motors are switched off, with the generators providing power to the hotel load. The main engines drive the yachts’ propellers. In Cruising Mode, Home achieves speeds between 12 to 15 knots.
Boost Mode enables Heesen Electra to hit her top speed of 16.3 knots with ease. The yacht runs on the main engines and generators, whereby the e-motor is fed on the gearbox.
Home is all about fuel efficiency and comfort. Her lightweight aluminium hull offers superlative performance and efficiency in a luxurious design package under 500 GT. She has a transatlantic range of 3,750 nautical miles at a cruising speed of 12 knots. Her top speed of 16.3 knots is remarkable for a displacement yacht of her size. The hybrid propulsion operates near-silent in electric mode. Another innovation is the wide central staircase leading from the generous swim platform to the main deck aft that provides a grand entrance when arriving by tender.
