Vaccinations in a fridge
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Eco products made in Wales helping customers save money

More firms in Wales are investing time and money in creating sustainable products.

Among them are a fridge that can work for days without electricity and insulation panels that can be installed into homes with solid walls.

Western Power Distribution has also found a way to reduce the voltage of power carried in its cables which it says will help cut bills for customers.

BBC Wales' environment correspondent Iolo ap Dafydd reports.

  • 18 Apr 2014