Energy Performance Certificates

BEMS Energy can provide non-domestic EPCs for buildings up to Level 4.

What is an EPC?

Energy Performance Certificates (EPCs) are a widely used measure of the energy performance of buildings in the residential, commercial, and public sectors, and are a key tool in identifying energy saving opportunities.

Do I need an EPC?

An EPC is required if you:

  • Rent or sell your commercial property
  • Complete construction of a new building
  • Significantly alter an existing building
  • Alter a building and the changes involve providing or extending fixed heating, air conditioning or mechanical ventilation.

What Level EPC do I need?

There are three different levels of EPC available, and the level you require will depend on the complexity of the heating and cooling equipment contained in the building:

  • Level 3: required for buildings classified as having simple heating and air conditioning systems.
  • Level 4: appropriate for buildings with more complex heating and cooling systems, such as linked boilers, multi-split and variable refrigerant cooling systems and centralised heating, ventilation, and air conditioning plant such as AHUs and central chiller systems.
  • Level 5: necessary for buildings categorised as the most complex, involving features such as ventilation with enhanced thermal coupling to the structure, automatic blind and vent controls, and atria. Level 5 buildings must be assessed using approved Dynamic Simulation Modelling (DSM) software.

BEMS Energy can provide non-domestic EPCs for buildings up to Level 4.

What information will an EPC provide?

The information specified by a non-domestic EPC looks very similar to the energy data displayed on fridges or washing machines, with the same A-G energy rating.  A building that has been issued an EPC rating of “A” signifies the highest achievable efficiency, with “G” being the lowest possible rating.

Non-domestic EPCs evaluate the performance of the building itself and its fixed services, such as heating, cooling, or ventilation equipment; this does not include the contents, such as computers or other such equipment.

BEMS Energy are also able to carry out an in-depth survey of the building performance, building services plant and control strategies in conjunction with an EPC.  A supplementary energy report can be provided detailing further energy saving opportunities that have not been covered by the EPC.  Our supplementary reports provide recommendations using a traffic light system, complete with simple payback and, if requested, Net Present Value. These recommendations provide clear indications of where viable improvements can be made to the energy consumption of the building.