New range of variable speed marine generators from Volvo

Volvo Penta has launched a new range of variable speed marine generator sets, which it says are a ‘key enabler’ for electric propulsion for marine vessels.

Now a standard part of the Dame Award-winning Volvo Penta marine offer, the range of variable speed marine generator sets allows shipyards to install hybrid-electric modular propulsion systems. This move towards modular propulsion enables operators to invest in new vessels, knowing they are built ready for emerging alternative energy sources. 

The variable speed marine generator sets make it possible to build vessels with smaller battery banks and charge them while on the move. This technology is already being used by Volvo Penta customers, such as Swedish Transport Administration and MHO-Co. 

Volvo Penta says that now the technology is proven to work efficiently in real-world applications, it is offering the new range with models starting from D8, 190 kWe and running up to 545 KWe for the D16.

All Volvo Penta diesel engines can run on HVO 100 fuel, instead of standard diesel, to reduce fossil Co2 emissions by up to 90 per cent.

“By making our Volvo Penta variable speed marine generator sets more widely available, it takes us further forward in our journey towards more electric- and fuel-cell propulsion for the marine industry,” said Johan Inden, head of the Volvo Penta marine business.

“Now, more vessels will be able to install modular hybrid propulsion systems ready to be adapted to future energy choices, meanwhile delivering important sustainability and fuel efficiency gains from day one.” 

A typical installation sees a modular series of variable speed marine generator sets installed to power electric drives with or without battery packs. This direct current (DC) grid system is easy to upgrade with alternative power sources and has fewer components, weighing less – especially when compared to batteries as the sole energy carrier, making the vessel more efficient. The modular installation also creates the option of using the minimum number of engines to deliver the power needed.

Volvo says these sets are also the most compact solutions that meet the latest IMO Tier III regulations, and because they are water-cooled, the generators provide less noise.