Sainsbury’s has launched a new flagship supermarket in Hook, Hampshire, which is projected to use only half the energy of a similar-sized Sainsbury’s store and 25% less electricity than its other most energy-efficient supermarkets.

Combining innovations in construction and engineering to arrive at the design of the new 25,000 sq. ft. supermarket, Sainsbury’s is building on and bringing together an array of energy-saving features that can now be found in other stores across its estate.

A store that is Better for the planet:

Sainsbury’s Hook will operate using 100% renewable electricity and will not rely on any fossil fuels. It will keep aisles at their optimum temperature using a cold aisle retrieval system, which takes any air that may leave the fridges and displaces it to other areas of the store to keep those aisles cooler. Warm air is then taken from the back of its fridges and re-purposed to heat other sections.

About two-thirds of the energy consumed will be reused by the cold aisle retrieval system.

The store is also part of a new trial that uses doors on chilled cabinets, keeping cold air in and reducing their energy demands by up to 60%[1]. Further energy savings have been driven by adding lids on frozen food display cabinets, which work in the same way.

Ambient air door curtains will help to reduce the store’s heating requirements and make customers’ experience more comfortable by counteracting naturally occurring drafts.

The roof features over 700 solar panels, which are expected to provide up to 300 megawatt hours (MWh) of energy for the store per year.

100% LED lighting has been installed throughout the store, and on the shop floor sensors will enable it to adapt in response to the level of natural daylight so that energy is not wasted.

Sainsbury’s Hook will contribute to the retailer’s target of becoming water-neutral by 2040 with low-pressure bathroom taps and rainwater harvesting.

The new store will set the standard for future Sainsbury’s Superstores and the retailer will replicate and build on everything that works well from Sainsbury’s Hook in new supermarkets it constructs, as well as retrofitting its existing estate with the technology wherever it can.

Sainsbury’s currently operates with 100% renewable electricity and by the end of 2023 the retailer projects that up to 40% of its electricity will come from new-to-the-planet wind and solar power. The improvements in the store’s efficient energy design are part of Sainsbury’s wider commitment to becoming Net Zero in its own operations by 2035.

Sainsbury’s Hook represents a brand-new shopping destination for customers in northern Hampshire, offering greater choice, quality and value, with thousands of products available to choose from.

The store will be an active member of Sainsbury’s Food Donation Programme via Neighbourly, which works to reduce the amount of food waste within its operations and redistribute surplus food to those who need it most.