The prototype will use the Basingstoke firm's cell to completely replace the traditional diesel generator and power all instruments and air conditioning as well as auxiliary propulsion for the yacht.

Fuel cells generate no pollution with water the only exhaust. They generate electricity, heat and water by mixing oxygen and hydrogen.

Freivokh, now based in new riverfront headquarters at Sarisbury Green's Universal Marina, said fuel cells represented the future for the industry.

'In five years' time we will be at designing the whole yacht round a cell and accommodating a fuel cell will be standard issue in the marine design industry.'

Despite being significantly quieter and lighter than traditional diesel power, fuel cells can still propel the ship for long periods, Voller Energy claims.

It also saves space on board when compared to a bulky generator, offering new design possibilities.

'It's the potential reliability and ease of maintenance of the fuel cell which are its attributes to boating,' said Stephen Voller, chief executive of Voller Energy.