The company will initially roll out its technology at 15 Sainsbury’s stores in 2014 and expand it to further stores in the coming years.
The first phase of the rollout is being facilitated through a new £15m loan fund managed by Macquarie Lending.
British Gas will manage and maintain the systems after their installation.
Geoscart has already installed or under contract 40MW of its technology with a pipeline of planned installation of over 100MW across different sectors over the next four years.
Geoscart CEO Grahame Newton 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-consumerspace.
"We are looking forward to rolling out the technology to a wider audience with the help of our operational partners."
Sainsbury’s head of sustainability for engineering & energy Paul Crewe 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."
