6 November, 2006
The winner of the WR award was Tesco Stores whose new Swansea store breaks new ground. In addition to a number of energy-saving technologies at the site, it is equipped with the UK’s first transcritical cycle carbon dioxide based refrigeration system. The store also harnesses solar power, north light technology, and cold air retrieval. It is claimed to use 32 percent less energy than a conventional store of the same size. The transcritical system cools three HT cases, while a carbon dioxide based cascade system, using a hydrocarbon secondary, serves the low temperature units. Throughout the project, Tesco has operated an open approach to the development, enabling the industry to share information and technical understanding. If the trial is successful, it could become the forerunner for a new generation of supermarket refrigeration technology.