Bobby is responsible for assessing the building physics of ZED buildings in order to ensure that they perform well in the climate and use for which they are intended whilst maintaining zero net carbon emissions with an appropriate mix of low energy systems and renewable energy sources. He is a mathematician with 15 years experience of developing mathematical models, simulations and monitoring systems specialising in the physics of building development performance. He has a first degree in mathematics from Bath University, an MA in architecture & advanced energy studies from UEL and he is also a chartered mechanical engineer. As well as working at ZEDFactory Bobby has a number of other clients including the Building Research Establishment where he assesses schemes to reduce carbon emissions in large developments using bespoke models of energy usage some of which are being developed into commercially available software. He also lectures in building physics for the MSc Architecture at the UEL, in Europe for the British Council, and writes course material for a Master's degree at the University of Manchester. Bobby's recent work will shortly be published as chapters on "ZED Physics" in the revised second edition of "From A to ZED - Realising Zero (fossil) Energy Developments".