Waitrose could be initiating a new era of greener supermarkets using a revolutionary door that promises to cut its electricity bills by up to 10 per cent. The AirDoor is the brainchild of Nick Wirth, a British engineer who used to design Benetton Formula One cars and invented the quad-copter drone. It uses sensors on the roof to anticipate weather conditions and computer-controlled jets to limit airflow in and out of shops, preventing energy loss. The first system will be tested at the Waitrose store in Berkhamsted, Hertfordshire, next month and rolled-out to all 353 of its supermarkets later this year if successful. Initial estimates suggest it could save the chain £10 million to £15 million per annum.
Times 6th May 2019 read more »