Thursday, October 17, 2013

Staying Cool

Staying Cool: U.K. Grocer Tests Natural Refrigeration System
News from Mary Mazzoni

U.K. grocery chain Sainsbury’s is testing a new naturally refrigerated trailer to transport cold foods using a C02 refrigeration system.
We’ve seen businesses test out a wide range of methods for slashing the footprint of heavy truck shipping — from crazy trailer contraptions to fuel made from manure.

Now, U.K. grocery chain Sainsbury’s is testing the world’s first naturally refrigerated trailer to transport chilled and frozen goods with less environmental impact.

Made by Carrier Transicold, the truck fleet will be cooled with carbon dioxide using a modified version of a refrigeration system that was originally developed for deep sea containers and completed a rigorous sea trial program last year. The trucks will be tested in a two-year trial, where performance will be closely monitored by the company.

“The new carbon dioxide technology has much less of an impact on climate change and we hope it will play a big part in helping us reduce our carbon emissions,” Nick Davies, head of transport operations for Sainsbury’s, said in a press release. “We will be monitoring its performance closely and if successful, in line with our replacement plan, it could help us save over 70,000 tons of CO2 compared to the current refrigerated trailer fleet.”

This isn’t the first time Sainsbury’s made a big move to cut its footprint. It was the first U.K. retailer to commit voluntarily to phasing out harmful HFC refrigerants and plans to convert all its 1,000-plus stores to natural refrigeration by 2030.

That may seem like a long way out, but the company is already well on its way to achieving the goal. It converted all its refrigerated depots in 2011 and is on track to switch 250 stores to CO2 refrigerant by 2014. All new stores are currently fitted with CO2 refrigeration as standard, and more than 160 existing stores have already moved to the natural refrigeration system, the company said.

Additionally, Sainsbury’s recently extended its dual-fuel fleet to 51 vehicles — reducing carbon emissions by up to 25 percent. The eco-friendly fleet, now one of the largest in the U.K., operates on a combination of diesel and bio-methane, produced from decomposing organic material in landfills.

It’s all part of Sainsbury’s 20×20 Sustainability Plan, through which the company aims to reduce its depot-to-store transport emissions by 35 percent by 2020 and 50 percent by 2030.

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