Irish families could save hundreds of euro every year by reducing the energy they use, according to the Power of One campaign.
Participants in the Department of Energy's initiative are celebrating the end of their six-month challenge to cut back on energy use in the home and work place.
Five families, two businesses and a school took part, and all managed to save over 20% in energy costs.
Power of One Energy Coach Aodhan Mac Phaidin, says it is easy to follow their example.
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