Oxford University

Oxford University reduces energy consumption & CO2 by up to 13%

Oxford University is the oldest university in the English-speaking world and a leader in learning, teaching and research, with almost 20,000 students. OxfordUniversity conducted a pilot of Sabien’s M2G technology across 3 boiler houses.

Sabien Technology focuses on helping both Private and Public sector organisations reduce their carbon emissions and energy consumption by up to 35%.

Sabien and M2G delivered

During the pilot, energy consumption and carbon emissions were reduced by up to 13%. Payback ranged from 28 to 39 weeks, with annual carbon savings of 82 tonnes.

Pilot Methodology

The test conditions and methodology were agreed with OxfordUniversity. The 3 pilot sites were chosen by the client and represented a cross section of the OxfordUniversity building portfolio. The pilot was conducted over a period of 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 onsite engineers and third party stake holders.

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 can be a substantial fuel reduction during less demanding situations while ensuring maximum capacity during heavy load periods.

Integrates with Building Management Systems

The M2G integrated seamlessly with the existing Building Management Systems across the 3 sites. The majority of M2G installations are in buildings which have sophisticated Building Management Systems already in place.

Payback in under 39 weeks

During the pilot energy consumption and carbon emissions were reduced by up to 13%. Payback ranged from 28 to 39 weeks, with annual CO2 savings of 82 tonnes.