UCL Energy Institute

Prof Tadj Oreszczyn

Prof Tadj Oreszczyn

Professor of Energy and Environment

Bartlett School Env, Energy & Resources

Faculty of the Built Environment

Joined UCL
25th Sep 1989

Research summary

Tadj has for 34 years undertaken energy and building research with a particular focus around the performance gap between theory and practice and the unintended consequences (health, comfort, etc.) of building energy efficiency. His first degree was in Applied Physics followed by a PhD in Solar Energy. 

Tadj has been involved in over 200 research publications. He was invited to: give evidence to the House of Lords Science and Technology Select Committee on Energy Efficiency, co-author two papers for the special issues of the Lancet on Energy and Health and prepare three papers for a State of Science Review for the Office of Science and Innovation. Tadj has provided research support for the development of the English and Welsh Building Regulations. He has presented at invited public and academic lectures at the Royal Society and the Royal Institution. 

Teaching summary

Tadj Oreszczyn is lead for the Fundamentals module of the Smart Energy and the Built Environment MSc at the UCL Energy Institute


Open University
Doctorate, Doctor of Philosophy | 1984
Brunel University
First Degree, Bachelor of Science | 1979


Tadj Oreszczyn FCIBSE MInstE, PhD, CEng is Professor of Energy and Environment at the UCL Energy Institute. He was founding Director of the UCL Energy Institute in 2009 and the Bartlett School of Environment, Energy and Resources (BSEER) in 2014.  Tadj was the Director of the RCUK Centre for Energy Epidemiology (CEE). He is Principal Investigator of the Smart Energy Research Lab (SERL) that facilitates access to smart energy meter data to the research community and leads the building theme of the Centre for Research in Energy Demand Solutions (CREDS). He is a member of the Executive Committee of the Lancet Countdown on Health and Climate Change and co-leads the mitigation theme.  


Tadj is a Fellow and was Vice President of the Chartered Institute of Building Services Engineers (CIBSE). Tadj is a member of the NHBC Expert Panel and a member of EDGE, an inter-institutional ginger group. Previously Tadj was a member of the UK Department of Energy and Climate Change (DECC, now BEIS) Scientific Advisory Group and has advised the Energy Efficiency Deployment Office at DECC.