Greenline 58 Fly

Greenline Yachts has developed a Responsible Power Pack that negates the need for generators across its entire range of yachts from 39-58ft. The new technology combines a bigger battery package and alternators, so a generator is not needed on diesel models.

All Greenline yachts are offered with either diesel, hybrid (sixth-generation H-Drive) or electric propulsion, while solar panels and lithium batteries are standard on all models, hugely reducing emissions.

All the Slovenian shipyard’s boats will now offer at least 48 hours of silent battery power at anchor or while docking, so owners can run the entire hotel load including full-power air-conditioning without the noise, vibration and smell of a generator.

Greenline 48 Fly

Instead of a generator, Greenline can fit a high-powered alternator that can take power from the running engine to recharge a large lithium battery bank. This enables the yacht to arrive at its destination with full batteries, ready for days of silent operation at anchor.

“When energy is used efficiently, the autonomy of the yacht can be extended for days by using solar power to cover hotel loads such as induction cooking and lighting,” Greenline stated.

The move is particularly appealing for owners who opt for a conventionally diesel-powered Greenline yacht, but still wish to reduce emissions, consumption and noise at anchor.

Greenline 45 Coupe

Vladimir Zinchenko, Greenline’s owner, said: “For conventional yachts, eliminating the generator is nothing short of revolutionary. There’s barely a yacht on the market in Greenline’s class of length and luxury capable of doing this. My mission has always been to further the concept of responsible yachting, and this shift towards using high-powered alternators and batteries will save tonnes of CO2 emissions.”

To illustrate the effectiveness of the new technology, the shipyard has cited the Greenline 45, its best-selling model. The yacht previously needed an 11kW generator to cover hotel loads, consuming about four litres of fuel per hour and often running constantly to power air-conditioning. This amounted to consumption of nearly 200 litres over a 48-hour period at anchor.

Greenline 45 Fly

Fitted with the new Responsible Power Pack, the Greenline 45 would require just nine hours of motoring to fully recharge the 34.2kWh batteries, giving emissions-free power on board for more than 48 hours.

To produce its 6kW of power, the alternator places additional load on the engine, which marginally increases fuel consumption for that period. However, when compared side by side, the new system slashes the emissions of covering hotel loads by up to 88 per cent.

Responsible Power Pack’s effect on Greenline 45

Luca Raumland, Greenline’s Chief Commercial Officer, said: “The figures are unequivocal. Our Responsible Power Pack can eliminate a staggering amount of the carbon emissions associated with running a yacht at anchor.

“By tapping the engine’s spare power when the yacht is under way, we can make non-hybrid models almost as efficient to operate as their hybrid alternatives. In fact, with careful use of the air-con, the solar panels fitted as standard to every yacht can fully replenish the batteries during the day and keep the boat emissions-free at anchor indefinitely.”

Greenline’s focuses on sustainability throughout its design and production. This includes ‘super-displacement’ hulls developed and tested to provide a smooth, ride, stability and efficiency at low and high speeds, while the high-tech foam sandwich used to strengthen the hull comes from recycled PET plastic.

Interior of Greenline 45 Fly

Lay-up is through vacuum infusion, ensuring precise material use, with the use of vinyl-ester resin allowing a five-year warranty against osmosis. The yard is currently experimenting with natural fibres and green resins in the lay-up. 

The shipyard is also reducing waste and power usage on production lines. Any offcuts of wood from the interior fit-out are collected and pressed into heating pellets, while leftover foam is reused by a neighbouring company to produce home insulation. Every new Greenline yacht delivered is equipped with biodegradable green yacht wash that does no harm to the ocean.

www.greenlinehybrid.com