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Why Are SBEM Calculations Important?

SBEM Calculations

The standards for energy efficiency are becoming increasingly rigorous, posing challenges for developers and property builders.

All new properties should comply with Part L2A of the Building Regulations in England and Wales and should be taken into consideration at design stage.

A SBEM (Simplified Building Energy Model) is a computer program that provides a detailed analysis of a building’s energy consumption for commercial buildings.

SBEM calculations are required for all newly built non-domestic units with a heated or cooled environment and an internal floor area greater than 50m2 to ensure they will meet the requirements of Part L2A of the Building Regulations.

SBEM calculations assess the overall thermal efficiency of the building. Additionally, it assesses the amount of energy that will be required for internal services. These are:

  • Heating
  • Cooling
  • Ventilation
  • Lighting
  • Hot water

It calculates monthly energy use and carbon dioxide emissions of a building and uses the construction, use, HVAC, lighting, and geometry of the building to make the calculation.

When Are SBEM Calculations Needed?

SBEM calculations are required for new build commercial buildings, extensions and refurbishments. Typically, SBEM calculations are undertaken both before and after project completion.

The stage before the project has been built is known as the ‘as design’ stage, and ‘as built’ when the project has completed.

The SBEM calculations produce a BRUKL Report. This shows the energy efficiency rating for the building.

The project passes Building Regulations Part L2 when a Building Emission Rate (BER) is lower than the Target Emission Rate (TER).

Why Are SBEM Calculations Important?

As Design

SBEM calculations are important during both ‘as design’ and ‘as built’ stage due to a number of factors.

During the As Design Stage, an SBEM calculation may anticipate any potential barriers in achieving compliance with Building Regulations.

We recommend that you do this early in the process as it will reduce your costs and will provide you with more flexibility regarding materials and energy-efficient systems used.

It is important to note that without a Design Stage SBEM calculation, building control bodies cannot allow construction on the commercial building to commence.

As Built

During the As Built Stage, it’s important that the SBEM calculation is carried out so that building control can sign the project off.

If alterations on the building have been carried out, this will be incorporated into the As Built SBEM calculation.

The property cannot be issued with an Energy Performance Certificate (EPC) until the SBEM calculation has passed the required targets.

Why Are SBEM Calculations Important To Us?

Sustain Quality has a vision for designing sustainable buildings across sectors. We help clients make better decisions, integrate sustainability into their projects and create innovative solutions.

We also aim to make your building process as smooth and efficient as possible, providing you with certification that enables you to achieve completion and compliance.

By reducing energy demand and increasing supply through renewable energy sources, Sustain Quality will enable users to benefit from more sustainable, reliable energy sources in the future.  

If you would like any more information on how we can provide you with energy statements to meet your local authority’s emission target-whether it is an SAP or SBEM calculation-get in touch today.

cta your guide to sbem calculations ebook