Sophisticated building modelling reduces overall energy consumption at Broad Quay House
“This case was a classic example of how the straight forward need for an energy performance certificate (EPC) can lead on to more substantial changes and improvements for the client.”
Broad Quay House, Bristol – an eight-floor, multi-tenanted building in the heart of Bristol’s business district. Tenants include Just Eat, Regus maintained offices and super computer company Cray UL Ltd.
Aberdeen Standard Investments (ASI)
Type of consultancy
Energy Performance Certificate, LED lighting upgrade and landlord mains distribution board replacement.
This case was a classic example of how the straight forward need for an energy performance certificate (EPC) can lead on to more substantial changes and improvements for the client. In this case, ASI required an EPC model and recommendations on the changes needed to improve the building’s existing poor energy rating to achieve a minimum “E” rating, to ensure compliance with the Minimum Energy Efficiency Standard (MEES) legislation.
EVORA EDGE was able to confirm the existing poor EPC rating was correct as well as the various electrical consumption ranges by different tenants.
Various scenarios were then modelled that would improve the rating using sophisticated dynamic simulation software. This showed that if the client converted to an LED lighting scheme then the building would not only achieve the desired ‘E’ rating but would also reduce overall energy consumption and require less maintenance.
EVORA EDGE prepared a project specification and undertook the management of all work required, including tendering and project management. Work and power shut-downs were undertaken out of hours followed by careful cleaning each night to ensure minimum disruption to the daily business of tenants.
Once the LED upgrade was completed a new EPC was issued reflective of the improvements carried out.
In addition to this change, EVORA EDGE was also able to identify further opportunities to improve the daily running and efficiency of the building.
This included switching from a Direct Network Operator (DNO) supplied system to a Building Network Operator (BNO) supplied system to enable automated billing of electricity bills. Changing to a BNO system allowed the tenants to have more flexibility around choosing suppliers and managing their own energy consumption.
It was also determined that all existing electrical usage could be put onto a single transformer instead of the two currently being used. This would mean the building now has standby capacity that can be utilised in the case of any future works being required to the primary transformer.
The mains distribution upgrade required coordinated weekend power shutdowns to avoid tenant disruption whilst ensuring planned works were tested and completed on time.