Alpha Design approached Murton & Co following concerns that their designs for a development of eight office buildings on Hensingham Business Park in Whitehaven would not achieve compliance with Part L2A Building Regulations. Work had already started with a couple of buildings nearing completion. SBEM calculations had been carried out by another assessor which suggested each building required a solar PV array.
We carried out an initial review of the plans and building specification and were confident that the buildings would achieve compliance with Part L2A without reliance on solar PV.
Once we were formally instructed, we set about undertaking a full review of the building specification for each unit, calculated the U values for the building fabric, obtained the efficiencies for all the building services (space heating, hot water, lighting and ventilation systems).
We then used Design Builder software to create a 3D model of each building and run the SBEM calculations. We concluded that the predicted CO2 emissions for each building would be less than the Target Emission Rate (TER). Compliance with Building Regulations Part L2A could therefore be achieved without solar PV which saved the client around £100,000.