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Sabien’s M2G reduces energy consumption for RAF Odiham

18 November 2010

RAF Odiham has reduced its gas consumption and CO2 emissions by 15% by installing Sabien’s patented M2G intelligent boiler load optimiser – with a predicted payback of just 36 weeks.

Installation of the M2G at boiler houses on the site was completed on behalf of Scottish and Southern Energy Contracting and its performance in the main boiler house was analysed using onsite meter consumption data, degree day corrected to normalise the influence of the weather. The analysis showed a 15% reduction in gas consumption, giving an anticipated payback of 14 weeks for the main boiler house, and 36 weeks for the entire site, reducing energy costs by over £89,000 a year.

“The savings delivered were during one of the coldest periods, with boiler dry cycling at a minimum, yet savings of 15% were still achieved,” recalled Richard Plester, Area Development Manager with Scottish & Southern Energy Contracting. “Quick payback, integration with existing controls and the ease to implement across an estate have demonstrated M2G as a key technology to reduce energy costs and carbon emissions,” he added.

How M2G reduces energy consumption

The M2G is an intelligent boiler load optimisation controller that improves the efficiency of each individual boiler by removing “dry cycling”, an inherent problem found in over 80% of commercial boilers.

M2G is retro-fitted to each boiler and monitors the temperature of the water in the flow and return every 10 seconds, enabling the M2G to analyse the temperature losses from the boiler. The M2G calculates whether the temperature loss is caused by a genuine heating demand or from standing losses i.e. temperature losses through boiler casing and flue. When the boiler tries to fire as a consequence of the standing losses the M2G will prevent the boiler from firing unnecessarily.

M2G complements and integrates with existing building controls resulting in substantial reductions of energy consumption with quick payback periods. The combination of volatile energy prices and increasing legislation is placing pressure on organisations to improve their energy efficiency. As a result, M2G has been incorporated within the estates of some the UK’s leading organisations.

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