Woolworths now boasts 14 transcritical CO2 stores in Australia and New Zealand

The company announced its latest progress with natural refrigerant system installations in its 2019 sustainability report.

Woolworths' first transcritical CO2 store in Colebee, NSW.

Australian food retailer Woolworths now has 14 stores operating on transcritical CO2 systems throughout Australia and New Zealand (operating under its Countdown brand), according to its recently released 2019 sustainability report.

Woolworths commissioned its first transcritical CO2 system in Australia in July 2017 in Colebee, New South Wales.

Its latest transcritical CO2 store, which opened this past June in the Melbourne suburb of Heidelberg, marked the company's 7th transcritical CO2 store in Australia in just two years.

In addition, Woolworths is making significant progress deploying transcritical CO2 systems that fully integrate HVAC&R requirements for entire stores.

In December 2018, Woolworths commissioned a fully HVAC&R integrated transcritical CO2 system in Prestons, New South Wales.

The system was a technological milestone for the company as it was the first in the company's fleet that combined "the natural refrigeration and HVAC systems into an integrated transcritical CO2 platform", the 2019 sustainability report states. "This virtually eliminates synthetic refrigerants from the store.

The Woolworths store that opened in Heidelberg last June also features a fully integrated transcritical CO2 system that serves the store's entire space cooling and heating, hot water and refrigeration needs. Australian HVAC&R journal Ecolibrium covered the installation in its August 2019 issue here.

The Heidelberg store has also been designed in accordance with the requirements of a 5-Star Green Star Design and is now undergoing certification for an 'As-Built v1.2' Rating from the Green Building Council of Australia, according to the report.

"It’s quite fitting that what constitutes our 7th transcritical CO2 store at Heidelberg…is an integrated [refrigeration and air conditioning] system that does away with dependency on gas fired boilers and synthetic refrigerants altogether," said Dario Ferlin, sustainable innovations engineer for Woolworths in a post on LinkedIn last week.

By Devin Yoshimoto

Sep 03, 2019, 08:51

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