Sainsbury’s is pioneering new technology that will allow stores to save heat produced by store fridges, to use in the store’s heating system.
A company called Geoscart will work with Sainsbury’s and British Gas to provide ground-source heating across 100 stores. The technology cuts energy consumption by more than 30 per cent.
How does it work?
- Fridges in the stores produce heat as part of the refrigeration process
- This heat – which would otherwise be lost as waste – is transported to an underground vault through a series of pipes
- The heat is kept underground using subsurface rock, which has good insulating properties
- When it is required, the heat is pumped back into the store at whatever rate is needed
- Store heating bills are cut as less is needed from the National Grid to heat stores
Paul Crewe, Head of Sustainability, Engineering & Energy at Sainsbury’s said: “We’re delighted to be leading the way on this groundbreaking technology – helping to reduce energy use and carbon. I hope that with Geoscart’s help we’ll now see more retailers following suit.”
Grahame Newton, CEO of Geoscart, said: “This marks the next stage in Geoscart’s growth. We developed the baseline technology from the oil and gas sector and have successfully applied it to the retail-consumer space. We are looking forward to rolling out the technology to a wider audience with the help of our operational partners.”