The Cambridge University Energy Network


The Chair

Stephen Stretton, Research Associate, 4CMR

Stephen Stretton,, is a Research Associate at Cambridge Centre for Climate Change Mitigation Research, (4CMR), University of Cambridge. Stephen has a Bachelor’s degree in Mathematics from Cambridge and also holds higher degrees in Physics, Philosophy and Economics. He worked for three years in risk management in the city, modelling the value and risks of credit derivatives and bank loans given ‘fat-tail’ credit risk, long before the present financial crisis. Stephen now specializes in policy to deal with our economic, energy and climate crises. In June 2006 he wrote and published a pamphlet “A Zero Carbon Economy”, describing a feasible strategy involving the massive scaling up of renewable, nuclear and carbon capture electricity; electric cars and eco-homes, reducing CO2 emissions by around 90% by 2030. He sent the report to all the main political leaders, and founded the Cambridge Zero Carbon Society,, to develop economic policy to achieve the same goal, while increasing per-capita wealth (natural and anthropogenic). He supports ‘simple numbers’ and positive policy to achieve energy system decarbonization. Stephen also founded the annual Cambridge Climate,, conference, and is advising the latest one entitled: “Towards Zero Carbon Prosperity”. Stephen’s work in 4CMR involves modelling the economics of the energy system and the design of politically-feasible policy to achieve rapid decarbonization of the world economy.

The Speakers

Cédric Philibert, Administrator, International Energy Agency

A former science journalist, Cédric Philibert, born in 1954, advised the French environment minister 1988 - 1990. In 1990 he published two books on climate change and on renewable energies. From 1992 to 1998 he advised the CEO of the French Agency for the Environment and Energy Efficiency, then joined UNEP and, in 2000, the IEA, in charge of the "evolution of climate policy". In 2002 he published with Jonathan Pershing the IEA's "Beyond Kyoto" book. In 2005 he co-authored with Richard Baron the IEA's publication "Act Locally Trade Globally". In 2008 he published "Price Caps and price floors in Climate policy - A quantitative assessment". In 2009 he will work with the newly-formed Renewable Energy Division of the IEA. Since 2007, he also teaches Energy and Climate at Sciences-Po Paris.

Qualified in political sciences, he studied economics and published numerous papers in peer-reviewed and other journals. Married, he has three children.

Dr. Henner Gladen, Chief Technology Officer, Solar Millennium AG

Dr. Henner Gladen was born in 1962. He studied at the University of Erlangen-Nürnberg, Germany and graduated in Materials Science Engineering. Dr. Gladen initially worked as a Scientific Assistant for the Institute of Materials Science Engineering, after which he worked as a Quality Management and an Assurance Engineer at BROSE Fahrzeugteile GmbH from 1994 to 1995. From 1995 to 1997, he was a Technology Consultant for the Technology and Management Transfer Team in Nürnberg, Fürth and Erlangen. Following this role Dr. Gladen then worked for various Venture Capital companies from 1997 to 1998 focusing on the management of equity investments.

In 1999, Dr. Gladen co-founded Solar Millennium AG and was appointed Member of the Management Board. He is responsible for the Technology Development sector within the company.

Dr. Gladen is an expert surveyor for new technologies and strategic project development in the environmental sector and power generation. He has extensive experience in Research and Development of power plant and structural engineering.

Furthermore, he is an adviser to solid GmbH Fürth, a non-profit association centre for information and demonstration of solar energy for the cities Nürnberg, Fürth and Erlangen, Germany.

Jenny Chase, Lead Solar Analyst, New Energy Finance

Jenny Chase leads the Solar team at New Energy Finance. New Energy Finance has 125 analysts, based across 10 offices in Europe, the Americas, Asia & Africa are continuously monitoring market changes, deal flow and financial activity allowing instantaneous transparency into the clean energy and carbon markets. Within this, the Solar team comprises five analysts based in Washington DC, Beijing and London.

Jenny joined the company in September 2004, and launched the Solar Insight team in July 2006. Since then it has produced several groundbreaking pieces of research, including a Silicon Index of forward contract prices, and counts most of the major investors in the solar industry and many of the corporates among its clients. Jenny holds a BA in Physical Sciences and an MSci in Physics from the University of Cambridge.

Dr. Gerry Wolff PhD CEng, Co-ordinator of DESERTEC-UK

Dr Wolff‚s career has been mainly in research and teaching in computing and cognitive science (see He has had long-standing interests in environmental protection, focussing in recent years on what can be done to combat the threat of climate change. In 2001 he and his wife Marianne Jones set up a website about what ordinary householders can do to reduce their own direct emissions of CO2 (see This led on to an interest in clean energy and the huge potential of desert regions for the development of solar energy and wind power. Since 2006, he has been Coordinator of DESERTEC-UK, working to raise awareness of the DESERTEC concept in the UK and beyond (see

Prof. Gehan Amaratunga, EPEC Research Group, Department of Engineering, University of Cambridge, UK

Professor Gehan Amaratunga is the Group Leader of the Electronics, Power and Energy Conversion (EPEC) Research Group, Electrical Engineering Division, Cambridge University Engineering Department. He is also a Fellow of Churchill College, Cambridge. He has published over 450 research articles in journals and conference proceedings. Professor Amaratunga is a Fellow of the Institute of Electrical Engineers and a Chartered Engineer. He was elected a Fellow of the Royal Academy of Engineering in 2004. Then in 2007 he was awarded the Royal Academy of Engineering Silver Medal "for outstanding personal contributions to British Engineering". Research interests include: Nanoscale materials and device design for electronics and energy conversion. Novel materials and device structures for low cost, high efficiently solar cells. Power electronics for optimum grid connection of large photovoltaic electric generation systems. Integrated and discrete semiconductor devices for power switching and control.

Dr. N.J. Ekins-Daukes, Department of Physics and Grantham Institute for Climate Change, Imperial College London, UK

Dr. Ekins-Daukes researches future photovoltaic solar energy concepts and technologies and in partnership with a UK company Quantasol, holds the record for the highest efficiency nano-structured solar cell made to date. Previously, he worked in Australia at the University of Sydney and at the University of New South Wales on a range of solar energy technologies. Prior to that he held a JSPS Fellow at the Toyota Technological Institute, Japan, researching the application of nano-structures to improve the efficiency of solar cells. Dr Ekins-Daukes received his PhD degree from Imperial College London in 2000.

Gus Schellekens , Director, PricewaterhouseCoopers Sustainability and Climate Change Team

Gus is a Director in PwC’s Sustainability and Climate Change Team. Building on a 20 year career that has been focussed on delivering large programmes of work with private and public sector organisations globally, he is now leading PwC’s efforts to research and communicate the opportunity to accelerate the development of a SuperGrid, and the uptake of renewable sources of electricity, in particular Concentrating Solar Thermal Power (CSP), globally as a direct means of tackling Climate Change and energy security.

His current focus is on the opportunity for Supergrids and CSP in Europe, the Middle East and North Africa building on the results of a number of earlier detailed studies. Through his work with The Climate Group and the Potsdam Institute for Climate Impact Research, PwC have developed the Solar Potential concept to engage business and governments. Gus’s longer term interest is then to explore how this might begin to provide an illustrative roadmap for how we might then deliver on Earth’s Solar Potential globally in the coming years.

Dr. Rainer Tamme, Institute of Technical Thermodynamics of the German Aerospace Center (DLR), Stuttgart, Germany

Rainer Tamme is head of "Thermal Process Technology" department at the Institute of Technical Thermodynamics of the German Aerospace Center (DLR) in Stuttgart, Germany. He is a recognized expert in the field of thermal energy storage, thermo-chemical conversion and fuel processing technologies. Key Qualifications in the subject energy storage are material development, design and integration of TES systems for power generation and for the industrial process heat sector. He has many years of experience in managing and coordinating numerous German and international projects involving a wide range of industrial companies and research institutes, e.g., he co-ordinated EC PF5 and FP6 projects dealing with energy conversion and storage for high temperature solar thermal applications.

Rainer Tamme is a Diplom Chemiker in chemistry and chemical engineering from the Technische University Hannover and has got a Ph.D. in solid state and inorganic chemistry. He has published more than 80 reviewed papers in international journals and proceedings on the subject thermal energy storage, thermal management, advanced heat exchanger, solar power plants, catalysis, Hydrogen generation and storage. He is teaching "solar thermal technology II - high temperature applications" at the Mechanical Engineering Faculty of the University of Stuttgart and has supervised numerous students during their diploma, master and bachelor thesis.

He is acting as Operating Agent of the IEA ECES Annex 19 "Optimised Industrial Process Heat and Power Generation with Thermal Energy Storage" and is associated editor of the ASME Journal of Solar Energy Engineering responsible for the subject storage. In addition he provides experts and evaluator services for German Ministries and for the EC.

Professor Sir Richard Friend, Department of Physics, University of Cambridge, UK

Richard Friend has been on the Faculty in the Department of Physics, University of Cambridge, since 1980, where he is the Cavendish Professor of Physics. Professor Friend has pioneered the study of organic polymers as semiconductors, and his research group has demonstrated that these materials can be used in wide range of semiconductor devices, including light-emitting diodes and transistors. He has been active in the process of technology transfer of this research to development for products. He co-founded Cambridge Display Technology Ltd in 1992 who have developed polymer LED displays. He co-founded Plastic Logic Ltd in 2000 to develop directly-printed polymer transistor circuits that are currently being developed for use as the flexible active-matrix transistor backplane for electronic paper displays. He is currently working on the use of polymer and related materials for thin-film photovoltaic diode applications.

Graham Ford, Managing Director of HelioDynamics Ltd, UK

Graham Ford is Managing Director of, HelioDynamics Ltd, a UK company based near Cambridge. HelioDynamics was founded in 2000.

He is one of the inventors of HelioDynamics concentrated solar energy technology, and has led the technical team developing HelioDynamics products.

Graham is an experienced product and process development engineer, having previously served as a technology and management consultant with PA Consulting Group for over 20 years, working in a wide range of industrial sectors.

Graham is married, with three grown up children, all of whom are also dedicated to solving the climate change crisis.