CO2 supermarkets: Sainsbury’s

Sainsbury's has doubled the size of its supermarket in Durham, UK, and has cut energy consumption by 10%. The store will be "carbon negative" thanks to a number or technologies including ground-breaking CO2 refrigeration technology and on-site renewable power generation. The energy efficiency features and renewable energy generation will enable the carbon footprint of the store to be neutralized within a mere 2 years. This is the first Sainsbury's extension to use CO2 refrigeration, and the chain's CEO has announced the company's intention to switch to CO2 refrigeration in all stores by 2030. By 2019, new legislation is expected to ensure that all new commercial developments in the UK will have to be zero carbon.