Storing energy temporarily in combination with an intelligent regulating system for efficient use of energy can cut energy consumption by 20%. 'It is a technical innovation', says Johan de Jong, Electrical Systems Manager at Imtech Marine & Offshore.

More and more dredgers, mega-yachts and other vessels are being equipped with sustainable diesel electric transmission systems. 'The on-board demand for energy can fluctuate considerably, so the equipment tends to be heavily oversized', says De Jong. 'What is more, it must run continuously to be able to cope with a peak load but without this power actually being used. The result is a considerable waste of energy, significant wear-and-tear and high emissions of harmful substances. If you could store the generated energy in batteries, it would be a lot more economical’. Together with a consortium of partners, De Jong is party to the beginning of this technical innovation. It is an ambitious project, but there is a lot to be gained', he says. 'Emissions of NOx and CO2 will be substantially less. New electricity grids have been adapted to use solar and wind energy. For the users this will reduce the total cost of ownership, thus making the new system very attractive in economic terms. It is good for the environment and good for our competitive position. And a demand exists', De Jong concludes.