A project which uses sensors to identify and analyse different types of tennis shots has won the overall prize at this year's BT Young Scientist and Technology Exhibition.

The winning project was put together by 15-year-old Alexander Amini from Castleknock College in Dublin.

The announcement was made by the Tánaiste and Minister for Education and Skills, Mary Coughlan, this evening at the RDS in Dublin where the exhibition has been running all week.

Alexander Amini, who is in Fourth Year, wins a cheque for €5,000 and a Waterford Crystal trophy.

He will also go on to represent Ireland at the 22nd European Union Young Scientist Competition in Helsinki in September. His entry was in the Intermediate section of the Technology category.

The Best Group award went to Fourth Year students Thomas Cronin, Dylan Cross and Jeremy Barisch-Rooney from Coláiste Muire, Crosshaven, Co Cork, for their project on portable community wind-powered generators for developing countries.

The individual runner-up was Fifth Year student James Doyle from Presentation De La Salle College, Carlow, for his project entitled ‘The potential of waste materials from hedgerow cuttings as a feasible biomass fuel.’

The exhibition continues tomorrow and it is estimated that almost 40,000 people will have visited it by the time it comes to a close.