ENERGY REDUCTION SAINSBURY’S
S
ainsbury’s is a big business.
The retailer currently serves 23m people a week from around 600 supermarkets and 600
convenience stores. But it wants to serve more. Its ambitious plans for growth saw 93,000 m2
of fl oor space added to its
estate in 2012, with another 93,000 m2 expected this year. Along with its commitment to growth,
Sainsbury’s has also made a signifi cant pledge to sustainability with the recent launch of the 20x20 Sustainability Plan, an initiative based on 20 commitments to be achieved by the year 2020. From an environmental perspective, the plan includes some challenging targets, including reducing the amount of own-brand packaging by half, compared with 2005 levels, and cutting the carbon emissions associated with its own- brand products by a similar amount.
From an engineering perspective, however, by far the biggest 20x20 challenge is the commitment to reduce absolute operational carbon emissions from the estate by 30%, again compared
with 2005 levels. That equates to a 65% reduction in emissions for every square metre of existing fl oor space, including distribution centres, stores and offi ces. And as Mark Hawker, head of
engineering for the estate, points out, the 30% fi gure stays, ‘no matter how much Sainsbury’s estate grows’. So what innovations is it using to hit its target?
Enlightened approach The engineering team is currently focusing its energy-saving efforts on lighting, which makes up 20% of the company’s energy use. ‘To minimise this, we try to use natural light wherever we can,’ says Hawker. As a result, most new stores now feature a form of
SAVING WATER
Globally, water is becoming a resource issue, and it is also a cost issue for Sainsbury’s. The retailer has reduced its operational water consumption across its entire estate by 50% relative to the size of the store – an annual saving equivalent to 393 Olympic-sized swimming pools. All new stores incorporate automatic meter reading linked to a central monitoring station. This ensures any major water leaks can be detected and allows Sainsbury’s to compare consumption of one store against another. Stores use waterless urinals and percussion taps, toilets are fl ushed using harvested rainwater and the carwash recycles water. Sainsbury’s has also become one of the fi rst organisations – and the fi rst retailer – to achieve the Carbon Trust Water Standard, showing that it’s measuring, managing and reducing water use year on year.
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