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Matalan goes wireless with its new building energy management system and achieves 20% energy savings BEMS designed by WEMS and installed & commissioned by Aimteq is paying significant dividends for retail giant Matalan. • Retail giant Matalan selects Aimteq & WEMS for 206 of its 216-store estate • Average electricity savings of 20% achieved • WEMS’ wireless systems are 50% cheaper and 75% quicker to install The Matalan management team identified the need for a more robust The world’s first truly web enabled level of control over environmental wireless Building Energy Management comfort, varying levels of lighting and System (BEMS) has been installed at electro-mechanical equipment. 206 of Matalan’s 216-store estate. Impressive average energy savings of With the Matalan estate registering a 20% have been reported from a recent combined energy cost of over £12m measure taken across all stores, while per year, energy consultants Inenco the annual financial saving is estimated suggested that the company consider at a staggering £1.5m. the UK-manufactured WEMS’ wireless system and Aimteq as the installation ‘Opting for wireless is a big deal for a retail organisation where the floor space is populated by customers, as a conventional hardwired system would undoubtedly disrupt trading.’ partner. Opting for wireless is a big deal for a retail organisation where the floor space is populated by customers, as a conventional hard-wired system would undoubtedly disrupt trading. Wire-free technology In a bid to revolutionise the market Matalan decided to implement the and remove the expense attached to WEMS system, installed by Aimteq cabled BEMS, the WEMS System is an at five trial stores. At the end of innovative wireless BEMS designed the trial phase in May 2012, the to be as simple to install and use as company was suitably convinced that possible. The system is completely a full roll-out would deliver significant wireless, infinitely scalable, developed savings. Obviously an investment using open source platforms and can be such as this must compete with other controlled from anywhere in the world important capital projects, but with via the internet. “incredibly sharp payback periods” of only 6-7 months, justification was straightforward. “Matalan has made the commitment to install WEMS system in all our retail outlets. The installed stores have shown a considerable reduction in energy consumption of circa 20% and this is reflected in our energy bill which has decreased dramatically since implementation.” David Derbyshire - Environmental Manager aimteq.co.uk The Project The ‘WEMS System’ directly controls and monitors Matalan’s lighting, heating and cooling plant, removing the possibility of human error and minimising waste energy. This incorporates sales area lighting, backof-house lighting, external lighting, air handling units (AHUs), over-door heaters, gas-fired heaters, split air conditioning units and electric panel heaters. Among the innovations at Matalan, is a wireless key switch to ensure a minimal overnight base load with regard to lighting. When the keyswitch is unset, the system enables a level of lighting adequate for stocking and cleaning prior to the store opening. Furthermore, modulating control oversees any heating or cooling actuators and dampers with regard to the AHUs, while gas-fired heaters are manipulated on a trading time versus temperature dead band basis. This means that when the stock temperature drops to a level 2°C below the set point, the heating is activated to heat the room back to the required temperature. The Results In terms of financial return, measuring across all 206 stores, financial savings to date are estimated at a staggering £8.6m (taken from the Sept 2016 report), whilst annual savings are projected to be in excess of £1.5m. Quick Facts Since implementation: • 20.74% Saved • 79,119,648kWh saved • £8,576,063 saved • Over £1.5m saved annually Now fully rolled-out, the company says it will “close the loop” in terms of its approach to energy management by seeking certification to ISO50001. Need help with your energy consumption? Call us today 0161 475 1777 North office The Mission, Wellington Street, Stockport SK1 3AH South west office Unit 8, Cirencester Office Park, Tetbury Road, Cirencester GL7 6JJ London office Niddry Lodge, 51 Holland Street, London W8 7JB t 0161 475 1777 t 01285 655 772 t 020 3872 8222 [email protected] aimteq.co.uk aimteq.co.uk @aimteqenergy