by Michael Smith (Veshengro)
Power station malfunction and the unpredictability of wind power can also cause changes in supply to the grid, but such changes could become more manageable thanks to the innovative ‘Smart Grid' system at the new Sainsbury's store in Hythe, Kent, which opens on Wednesday, February 22, 2011.
The system monitors the grid and activates the store's biofuel generator when there is an increased demand for electricity. As a result, reserve power stations will not have to be used as much and the UK's carbon footprint will be reduced.
The generator is the first of its kind and will be powered by waste oil and fat from Sainsbury's stores to act as an auxiliary power source. Additional technology in the store will reduce strain on the grid further by deactivating or reducing the store's heating, ventilation and lighting systems at peak times.
Neil Sachdev, Sainsbury's property director explains: "To ensure that both consumers and businesses have enough electricity at all times, power stations are kept on stand-by, ready to come into action when required. The trouble is that two-thirds of the UK's stand by power comes from high-carbon-emitting non-renewable sources.
"By introducing this technology, we will cut the UK's dependence on fossil fuels, reduce our own energy costs and reduce our CO2 emissions."
The introduction of the Smart Grid system is part of Sainsbury's environmental stores programme, through which the company invests in environmental technology to drive energy and carbon efficiency in an effort to lessen the impact of climate change. Technology trialled in environmental stores is often rolled out to future store developments as standard.
Neil added: "We are absolutely committed to introducing experimental carbon-reducing innovations such as this. As a large retailer, we are able to make a tremendous difference by investing in new technology and rolling it out onto our estate. We are extremely agile as a business so can implement changes quickly by ourselves, rather than waiting for climate change legislation to bring about change.
"When we find a technology that can work at scale, we immediately set about planning how we can roll that into the rest of our business. Our customers trust us to make sure we minimise our environmental impact, so we are constantly working to ensure we meet their expectations."
Sainsbury's has been at the forefront of environmental store development for many years. It was the first retailer to use anaerobic digestion at scale to dispose of food waste, and opened the first store to be heated and cooled using geo thermal energy at Crayford last September.
Neil said: "The testing of the geothermal energy system at Crayford has gone extremely well, so we now aim to roll this out to at least 6 stores by the end of the year. If this Smart Grid technology trial goes well, we'll be looking at how we can roll that out too."
The creation of the Smart Grid store is the first major output of Sainsbury's partnership with Imperial College London's Faculty of Engineering and Grantham Institute for Climate Change. The partnership, which launched last year, was created to develop technologies and solutions that will help Sainsbury's lower its carbon footprint to help it meet with future climate change legislation, and continue to be the UK's greenest grocer.
While this biofuel generator is a great idea as the fuel is a renewable fuel but let's be honest, it is still going to put out CO2 emissions, and also, as it is more than likely basically a converted diesel generator, quite a bit of soot particles.
I would be more impressed here if there would be photo-voltaic panels in play too and wind turbines to reduce the power that the store uses and not just a biofuel (bio-diesel) generator. But it is a start and maybe we could see a greater move to renewable energy being used by Sainsbury's and others.
© 2011
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