This website uses cookies primarily for visitor analytics. Certain pages will ask you to fill in contact details to receive additional information. On these pages you have the option of having the site log your details for future visits. Indicating you want the site to remember your details will place a cookie on your device. To view our full cookie policy, please click here. You can also view it at any time by going to our Contact Us page.

Sabien’s M2G continues to deliver energy savings 7 years on

29 June 2017

Seven years on from the first installation for Lincolnshire County Council, Sabien Technology’s M2G boiler load optimisation controllers continue to deliver energy savings in line with those predicted at the time of specification.

The M2Gs were installed during two programmes, primarily to prevent wasteful boiler dry cycling.

The first programme saw 87 units installed on boilers across 23 Council properties, including Council offices, residential homes, libraries and registry offices.

CUSUM analysis at three sites showed weighted average savings in gas consumption of 15%. Having proven the technology, the Council decided to extend the use of M2G, installing 1,100 units in a range of primary and secondary schools.

On completion of the schools project, the Council then undertook further measurement and verification of energy savings.

“We carried out further CUSUM analysis following the school project, comparing fuel consumption with the same period the previous year and correcting the results using degree day data,” recalled the Council’s Senior Sustainability Officer Steve Golightly.

“The average savings across all the schools that were assessed was 9.1%, though some were as high as 30%.

“We supplied the equipment to the schools at no charge, and they were able to keep all of the savings, so the M2G installation has effectively freed up funds for them to use in other areas,” he added.

In most cases, the highest savings have been achieved during spring and autumn when boilers are running for longer periods at part-load and boiler dry cycling is most likely to occur.

In some cases, though, the Council also measured savings as high as 20% in winter.

“When we investigated this further, we found these were smaller schools with a single, over-sized boiler. Because the boilers were over-sized they were also running at part-load, and dry cycling, through the winter.

"Installation of M2G prevented this energy wastage, which accounts for the winter savings,” Steve Golightly explained.

Most boilers in the Council’s school estate were already fitted with relatively simple controllers providing timed control and weather compensation, though some larger schools have building management systems.

In all cases, the M2G units have worked in harmony with existing controls to increase the energy savings that are being achieved.

“The M2Gs that we first installed have now been running for seven years; without any issues, they are all still working well and we have not had any problems with ambient temperature control.

"So we are very pleased with the investment we have made in M2G and when we visit sites in the County to advise on energy savings, M2G is one of the first things I recommend,” Steve Golightly concluded.

Contact Details and Archive...

Print this page | E-mail this page


View more articles
Article image

Drive to improve procurement practices continues to gather pace

Following calls to improve procurement processes in all areas following the collapse of Carillion last year, the Construction Industry Training Board (CITB...
Article image

Government urged to 'avoid Apprenticeship Levy mistakes' in T levels

Lack of awareness for the new T level qualifications has been highlighted by a recent survey conducted by manufacturers' association Make UK....
Article image

Early involvement of FMs called for in Soft Landings topic guide

Publication of its Soft Landings and Business-Focused Maintenance Topic Guide has been announced by BSRIA, designe...
Article image

Communication is essential for delivery of health and safety

Complying with legislative requirements in all areas of facilities is one of the overriding areas of concentration for all FMs and these are often regarded...
Article image

The rise of the specialist service provider

There is a big shake up going on across the facilities management (FM) market as clients recognise they need more engineering support to help them keep the...
Article image

Why the Law Says You Need a Nappy Bin Disposal Service

At home, parents are used to disposing of their babies’ used nappies the same way they do any other domestic waste - bagging it up and sticking it in the r...