12/04/2011 (Agence Europe) - Energy efficiency prize winners 2011. 25 winners from 14 member states were rewarded this year in the three categories - GreenLight, GreenBuilding and MotorChallenge - featured in this year's edition of the energy efficiency awards managed by the Joint Research Centre, the European Commission's in-house science arm. Between them, the three programmes save more than 837,000 MWh of electricity each year, the Commission says. The full list of prize winners is...