Bradford Metropolitan District Council

Sabien was asked by City Of Bradford MDC to demonstrate the energy consumption and CO2 savings by installing Sabien’s M2G technology to eight boilers at three City Of Bradford MDC sites and piloting over a one month period. The project reduced energy consumption and CO2 emissions by up to 26%

The pilot sites were Alhambra Theatre, Eccleshill Baths and Keighley Town Hall. The chosen sites represented a good cross section of different boiler applications and types of buildings within the City of Bradford MDC portfolio

Sabien Technology Limited (Sabien) helps companies reduce their carbon emissions, energy consumption and therefore save money. Based upon its established technology, M2G, Sabien's approach is proven to deliver typical carbon emissions and energy consumption savings of between 10% and 25%.

Average savings of 20% - payback in 28 weeks

M2G delivered significant savings Alhambra Theatre 9% saving, payback 1.2 years, Eccleshill Baths 26% saving payback in 0.3 years, and Keighley Town Hall 23% saving payback in 1.2 years. Overall energy consumption was reduced by 20% and payback in just 28 weeks.

What is M2G?

The M2G is an intelligent boiler load optimisation controller that improves the efficiency of each individual boiler. A unit which can be retro-fitted to each boiler monitors the temperature of the water in the flow and return every 10 seconds and the information is recorded with heat transfer rates at the first and second stage firings.

When a loading demand is made the system, automatically checks the latest data it has stored and decides whether it is more economical to retain first stage firing or to introduce a second stage firing. The result is a substantial fuel reduction during less demanding situations while ensuring maximum capacity during heavy load periods.

Pilot Methodology

The test conditions and methodology were agreed with Bradford MDC. The 3 pilot sites were chosen by the client and represented a cross-section of the Bradford MDC building portfolio. The pilot was conducted over 30 days. M2G can be configured to operate in either ‘Save’ (i.e. days when the M2G is operational and makes savings) and ‘Bypass’ (i.e. days when the M2G is bypassed and makes no savings) mode. A comparison of the boiler firing periods was made between Save and Bypass days.

Variations in outside temperature were accommodated using industry standard degree day calculations. Ambient room and hot water temperatures were unaffected during the pilot period. Sabien managed the pilot from start to finish, working closely with the onsite engineers.

Integrates with Building Management Systems

The M2G integrated seamlessly with the existing Building Management Systems. The majority of M2G installations are in buildings which have sophisticated Building Management Systems.

To read the full report on the Bradford MDC project