Ian Knows all there is to know about designing energy efficient buildings.

Ian Byrne is a pioneer in energy efficiency of domestic homes, non-domestic buildings and industry.  During his 25 years experience in energy conservation he has helped develop National Home Energy Rating (NHER), Standard Assessment Procedure (SAP), and.Convenor of the working group that wrote ISO 50047 on the determination of energy savings in organisations. 

The NEF is an independent, national charity at the forefront of improving the use of energy in buildings: understanding energy use; improving new and existing buildings; helping householders save energy and money.