BUILDING ENERGY MANAGEMENT SYSTEMS (BEMS)
Building’s Energy Expenditure
Within a typical commercial property 40-60% of a building’s energy expenditure comes from HVAC equipment. In
addition lighting adds another 20% to these costs.
Through the implementation of a smart building energy management system, on average 10-15% savings can be made
by optimising HVAC , and further savings on lighting using the appropriate energy efficiency technologies together with
automated intelligent management as part of an energy efficiency strategy.
Not only does this reduce consumption and costs but improves sustainability within the building and having a positive effect in helping reduce the organisation’s carbon footprint.
MAINTAINED BUILDING ENERGY MANAGEMENT SYSTEM
By implementing a well maintained system, between 15 and 35% saving on energy bills can be achieved over
a non-maintained one.
ENERGY CONTROL SYSTEM
Maintained, monitored and controlled by a service delivery team providing continued system efficiencies,
with ongoing site and remote support services.
PPM & PLANNED MAINTENANCE
Combining a site PPM (planned and preventative maintenance) program with the remote services provides
optimum energy efficiency and comfort well-being in your building.
ENERGY REDUCTION SOFTWARE ENGINEERING
For the following:
- Time schedules for efficiently planning engineer inspections, visits and activity
- Optimum Stop to disable the plant prior to the end of any occupancy. Determines the earliest time that
the equipment can be shut down without causing the space temperature to deviate from the set-point.
- AHU – Compensated Supply Set point to control the AHUs based on the floor temperature so that the
AHU can respond to demands.
- Night Purge used to enable AHUs overnight to supply full fresh air to the space if the internal
temperature is found to be too warm outside normal occupancy times. Allows the space to be pre-
cooled using full fresh air instead of running the chiller plant first thing in the morning.
- Boiler Control to maintain a compensated return temperature set-point to reduce boiler operation so
that the boiler load is modulated based on actual demand.
Provision of an EMC (energy monitoring centre) to connect remotely to the BEMS and adjust parameters,
strategy and settings on the fly to ensure all connected plant / lighting systems only operate when required i.e. on demand. A client comfort policy will be accompanied with this in parallel, to optimise without
compromising site comfort conditions.
On days where sites operate under reduced or increased occupancy hours, the EMC will program the system
in advance of the date of the event in order to ensure optimisation. On days where building occupancy is
reduced ensures energy consumption is also reduced, again without building comfort conditions being
EXCESS ENERGY INVESTIGATIONS
Alerting of sites where high energy wastage is occurring. The cause will be identified and recorded for later
reference, together with the effects of the resolutions for full audit-ability and EPC compliance mitigation.
SYSTEM OVERRIDE MANAGEMENT
Where direct connectivity is provided override alarms can be configured for data reporting and analysis
purposes. For sites that abuse these override parameters reports are created and sent back to the client for review and further action. This also identifies where systems have underlying faults or perhaps where bad housekeeping practices are in effect by some site personnel.
CRITICAL ALARM MONITORING
Sites are configured to transmit critical alarms where they are monitored 24/7 x 365 and acted upon as per
client escalation procedures. All alarms are accessible easily by the client or maintenance team for effective
investigation and resolution. Comprehensive reporting is providing for all alarms which can also determine
deterioration of plant and full transparency within the services provided by the EMC.