Coldstore software cuts Asda’s costs and CO2 emissions

Glasgow, Scotland: Use of Star’s Ethos software in nine of Asda’s coldstores has led to a 1,100 tonne CO2 emissions saving in four years.

Ethos software monitors refrigeration plant performance and allowed Asda to save 5GWh on energy costs and 1,100 tonnes of CO2e on the sites using Ethos software.

Asda has reduced its energy consumption by 35% since 2010 helped by Star Refrigeration’s data monitoring business, Star Data Analytics and City Facilities Management.

Asda has driven down its overall energy consumption at all of its CDCs in mainland UK by actioning Ethos’s energy data insights which were produced from the information collected from the existing refrigeration plants to reduce energy usage.

Asda has also signed up to the cold chain sector’s Climate Change Agreement (CCA) – a UK government incentive for business in energy intensive industries.

Andrew Dodson, energy bureau manager, City Facilities Management said, “This project has highlighted how cross-company collaborations can work successfully. Both Star and City Facilities Management offered specific expertise to Asda to help it achieve its vision of vastly reducing its carbon footprint. By investing in preventative maintenance, data monitoring and energy performance optimisation of its cold stores, Asda is now reaping the financial rewards too”.

The Ethos software was first installed in Asda’s Bedford chilled distribution centre. In four years of monitoring the plant and making recommendations to improve efficiency, the site reported energy savings of 556,000kWh and also saved 760 tonnes of carbon dioxide from being released into the atmosphere.

Brian Churchyard, engineering and energy senior manager, Asda, said “We have made tangible reductions in energy use throughout our chilled depots whilst continuing to run our business as usual with no disruption, and have not decreased our capacity requirements resulting in reduced operational costs improving like-for-like profit margins. 

“These changes behind the scenes also reduce your overall carbon footprint.”Ethos is a bespoke data driven analysis software designed by a team of award-winning senior refrigeration consultants, field engineers and software engineers. It collects data from refrigeration plants in real time and the cloud based software then compares actual operating performance with a computer model of theoretical performance at the given ambient conditions and operating temperatures.

This comparison of actual performance with the ‘digital twin’, highlights any energy gap and enables the SDA team to identify problems and suggest corrective actions to reduce energy usage and meet environmental goals.

Live data is provided through a digital dashboard which conveys the performance clearly. Alerts are sent to plant owners and maintenance contractors when irregular equipment behaviour is detected. Additionally, a spending chart within the Ethos dashboard allows customers to see at a glance how much money is being spent running the refrigeration plant and what the potential savings could be following implementation of recommended energy insights.

With the UK following many other countries around the world by introducing legislation to decarbonise by 2050, all businesses need to have a plan to net zero. Innovative software such as Ethos can offer large gains when it comes to reducing energy usage and cutting carbon footprints.


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