Fields of expertise
Daylighting and Greenlighting Technology; Passive and Active Solar; Sustainable Building Technology; Stochastic Building Simulation; Predictive Control; Air Infiltration and Ventilation.
BiographyDirector of EPFL Solar Energy and Building Physics Laboratory (1994-present); Founder & Director of ENAC Institute of Infrastructures, Resources and Environment (2002-2009); Founder & Director of EPFL Doctoral Program in Environment (2002-2009); Co-Director of EPFL Institute of Building Technology (1994-1997); Associate Professor of Building Physics at EPFL (1994-1997); Associate Professor of Building Physics at University of Geneva (1990-1997); Group Leader & Research Fellow at the EPFL Solar Energy Research Group (1981-1989); Research Fellow at the Applied Geophysics Institute of University of Lausanne (1980-1981).
BackgroundVisiting Professor at National University of Singapore (2009); Visiting Scientist at Lawrence Berkeley National Laboratory & UCLA (1988); PhD in Physics from EPFL (1986); Visiting Scholar at Colorado State University (1984); MSc in Geophysics from University of Lausanne (1981); MSc in Physical Engineering from EPFL (1980).
Leaderships & AdwardsSteering committee Speaker of Daylight Academy (2016-present), Member of Advisory Board of European Centre and Laboratories for Energy Efficiency Research (2009-present); Member of WEF Global Agenda Council on Sustainable Energy (2008-2010); Member of IPCC Working Group III Mitigation (2008-2011); Chairman of Research Commission of the Swiss Competence Centre for Energy and Mobility (2005-present); Member of Energy Commission of the Swiss Academy for Engineering Sciences (1989-2009); Member of the Swiss Federal Experts Panel for Solar Energy (1987-1998); President of the Swiss Solar Energy Society (1987-1995).
Solar Energy Valued Associate Editor (2008); European Solar Prize (2001/2002); Walsh-Weston Bronze Medal (1998); Honorary Member of the Swiss Solar Energy Society (1995); Dufour Foundation Special Prize (1975); Félix Roux Foundation Science Prize (1973).
Careers & Spin-offPascal Affolter, Research Associate 1996, Founder & Director Solstis (LESO-PB Spin-off)
Marilyne Andersen, PhD 2004, Chorafas Prize 2005, Former MIT Associate Professor (2004-2010), EPFL Associate Professor (2010-present)
Manuel Bauer, PhD 1998, Founder & Director Estia (LESO-PB Spin-off)
Jacques Bonvin, Research Associate 1996, Founder & Director Solstis (LESO-PB Spin-off)
Raphael Compagon, PhD 1993, Professor University of Applied Sciences Western Switzerland (Fribourg)
Gilles Courret, PhD 1999, Professor University of Applied Sciences Western Switzerland (Yverdon)
Professor University of Applied Sciences Western Switzerland (Yverdon)
Flourentzou Flourentzos, PhD 2001, Founder & Director Solstis (LESO-PB Spin-off)
Flavio Foradini, Research Associate 1997, Founder & Director E4Tech (LESO-PB Spin-off)
Jean-Marie Fürbringer, PhD 1994, EPFL Doctoral School & STI Dean Offices
Jean-Louis Genre, Founder & Director Epiqr Rénovation (LESO-PB Spin-off)
Antoine Guillemin, PhD 2003, Chorafas Prize 2004, Founder & Director Adhoco AG/Neurobat AG (LESO-PB Spin-off)
David Lindelöf, PhD 2007, CTO Neurobat AG (LESO-PB Spin-off)
Jessen Page, PhD 2007, Professor HES-SO Valais
Adil Racheed, PhD 2009, Research Associate SINTEF, Norway
Darren Robinson, Scientific Adjunct 2011, Full Professor University of Sheffield, UK
Anothai Thanachareonkit, PhD 2008, Research Associate Lawrence Berkeley National Laboratory, USA
Towards realization of an Energy Internet: Designing distributed energy systems using game-theoretic approachApplied Energy. 2021-02-01. DOI : 10.1016/j.apenergy.2020.116349.
Do energy performance certificates allow reliable predictions of actual energy consumption and savings? Learning from the Swiss national databaseEnergy And Buildings. 2020-10-01. DOI : 10.1016/j.enbuild.2020.110235.
Introducing reinforcement learning to the energy system design processApplied Energy. 2020. DOI : 10.1016/j.apenergy.2020.114580.
Self-commissioning glare-based control system for integrated venetian blind and electric lightingBuilding and Environment. 2020. DOI : 10.1016/j.buildenv.2019.106642.
Quantifying the impacts of climate change and extreme climate events on energy systemsNature Energy. 2020. DOI : 10.1038/s41560-020-0558-0.
Integrating urban form and distributed energy systems: Assessment of sustainable development scenarios for a Swiss village to 2050Renewable Energy. 2019-12-01. DOI : 10.1016/j.renene.2019.05.033.
Eight-month experimental study of energy impact of integrated control of sun shading and lighting system based on HDR vision sensorEnergy and Buildings. 2019-11-15. DOI : 10.1016/j.enbuild.2019.109443.
Redefining energy system flexibility for distributed energy system designApplied Energy. 2019-11-01. DOI : 10.1016/j.apenergy.2019.113572.
Automated ‘Eye-sight’ Venetian blinds based on an embedded photometric device with real-time daylighting computingApplied Energy. 2019-10-15. DOI : 10.1016/j.apenergy.2019.113317.
Performance assessment of the BTDF data compression based on wavelet transforms in daylighting simulationSolar Energy. 2019-09-15. DOI : 10.1016/j.solener.2019.07.096.
Split-pane electrochromic window control based on an embedded photometric device with real-time daylighting computingBuilding and Environment. 2019-08-15. DOI : 10.1016/j.buildenv.2019.106229.
A new clustering and visualization method to evaluate urban heat energy planning scenariosCities. 2019-05-19. DOI : 10.1016/j.cities.2018.12.007.
Design and Validation of a Compact Embedded Photometric Device for Real-time Daylighting Computing in Office BuildingsBuilding and Environment. 2019-01-15. DOI : 10.1016/j.buildenv.2018.11.016.
Evaluating the electricity saving potential of electrochromic glazing for cooling and lighting at the scale of the Swiss non-residential national building stock using a Monte Carlo modelEnergy. 2019. DOI : 10.1016/j.energy.2019.07.037.
A solar-based sustainable urban design: The effects of city-scale street-canyon geometry on solar access in Geneva, SwitzerlandApplied Energy. 2019. DOI : 10.1016/j.apenergy.2019.02.014.
Machine learning methods to assist energy system optimizationApplied Energy. 2019. DOI : 10.1016/j.apenergy.2019.03.202.
Assessing visibility in multi-scale urban planning: A contribution to a method enhancing social acceptability of solar energy in citiesSolar Energy. 2018-10-01. DOI : 10.1016/j.solener.2018.07.059.
Cooling potential of greening in the urban environment, a step further towards practiceSustainable Cities and Society. 2018-01-31. DOI : 10.1016/j.scs.2018.01.019.
Modeling the effects of future urban planning scenarios on the Urban Heat Island in a complex regionEarthArXiv. 2018. DOI : 10.31223/osf.io/c8mzb.
Passive design optimization of newly-built residential buildings in Shanghai for improving indoor thermal comfort while reducing building energy demandENERGY AND BUILDINGS. 2018. DOI : 10.1016/j.enbuild.2017.09.095.
Large-scale rooftop solar photovoltaic technical potential estimation using Random ForestsAPPLIED ENERGY. 2018. DOI : 10.1016/j.apenergy.2018.02.118.
Combinatorial study of low-refractive Mg-F-Si-O nano-composites deposited by magnetron co-sputtering from compound targetsAPPLIED SURFACE SCIENCE. 2018. DOI : 10.1016/j.apsusc.2017.10.229.
Thermal Comfort Maps to estimate the impact of urban greening on the outdoor human comfortUrban Forestry & Urban Greening. 2018. DOI : 10.1016/j.ufug.2018.08.007.
Improving the energy sustainability of a Swiss village through building renovation and renewable energy integrationEnergy and Buildings. 2018. DOI : 10.1016/j.enbuild.2017.10.057.
Optimum dispatch of a multi-storage and multi-energy hub with demand response and restricted grid interactionsEnergy Procedia. 2017-12-01. DOI : 10.1016/j.egypro.2017.12.434.
Bright Light Delights: Effects of Daily Light Exposure on Emotions, Rest-activity Cycles, Sleep and Melatonin Secretion in Severely Demented PatientsCurrent Alzheimer Research. 2017. DOI : 10.2174/1567205014666170523092858.
Outdoor human comfort and thermal stress: A comprehensive review on models and standardsUrban Climate. 2016. DOI : 10.1016/j.uclim.2016.08.004.
Diurnal variations of hormonal secretion, alertness and cognition in extreme chronotypes under different lighting conditionsNature Scientific Reports. 2016. DOI : 10.1038/srep33591.
CFSpro: ray tracing for design and optimization of complex fenestration systems using mixed dimensionality approachJournal of Applied Optics. 2016. DOI : 10.1364/AO.55.005127.
Effective and robust energy retrofitting measures for future climatic conditions — Reduced heating demand of Swedish householdsEnergy and Buildings. 2016. DOI : 10.1016/j.enbuild.2016.03.044.
Effects of urban compactness on solar energy potentialRenewable Energy. 2016. DOI : 10.1016/j.renene.2016.02.053.
Monitoring and rendering of visual and photo-biological properties of daylight-redirecting systemsSolar Energy Journal. 2016. DOI : 10.1016/j.solener.2015.12.052.
Annual Performance Assessment of Complex Fenestration Systems in Sunny Climates Using Advanced Computer SimulationsJournal of Daylighting. 2015. DOI : 10.15627/jd.2015.6.
Effects of realistic office daylighting and electric lighting conditions on visual comfort, alertness and moodLighting Research & Technology. 2015. DOI : 10.1177/1477153514531518.
Climate responsive strategies of traditional dwellings located in an ancient village in hot summer and cold winter region of ChinaBuilding and Environment. 2015. DOI : 10.1016/j.buildenv.2014.12.003.
Statistical-thermodynamics modelling of the built environment in relation to urban ecologyEcological Modelling. 2015. DOI : 10.1016/j.ecolmodel.2015.03.014.
Influence of doping in thermochromic V1−xWxO2 and V1−xAlxO2 thin films: Twice improved doping efficiency in V1−xWxO2Journal of Alloys and Compounds. 2015. DOI : 10.1016/j.jallcom.2014.08.264.
Nanocrystalline Low-Refractive Magnesium Fluoride Films Deposited by Reactive Magnetron Sputtering: Optical and Structural PropertiesAdvanced Engineering Materials. 2015. DOI : 10.1002/adem.201500129.
A multi-layer ground model to simulate outdoor surface temperature at urban scaleEnergy and Buildings. 2014.
Different colors of light lead to different adaptation and activation as determined by high-density EEGNeuroImage. 2014. DOI : 10.1016/j.neuroimage.2014.06.071.
Reactively sputtered coatings on architectural glazing for coloured active solar thermal façadesEnergy and Buildings. 2014. DOI : 10.1016/j.enbuild.2012.12.030.
Novel black selective coating for tubular solar absorbers based on a sol-gel methodSolar Energy. 2013. DOI : 10.1016/j.solener.2013.05.009.
A bottom-up stochastic model to predict building occupants' time-dependent activitiesBuilding and Environment. 2013. DOI : 10.1016/j.buildenv.2012.10.021.
Optical and morphological characterisation of low refractive index materials for coatings on solar collector glazingRenewable Energy. 2013. DOI : 10.1016/j.renene.2012.10.052.
Effects of prior light exposure on early evening performance, subjective sleepiness, and hormonal secretionBehavioral Neuroscience. 2012. DOI : 10.1037/a0026702.
Evening office lighting - visual comfort vs. energy efficiency vs. performance?Building And Environment. 2011. DOI : 10.1016/j.buildenv.2010.10.002.
A rules of thumb-based design sequence for diffuse daylightLighting Research & Technology. 2010. DOI : 10.1177/1477153509104765.
Ray tracing study for non-imaging daylight collectorsSolar Energy. 2010. DOI : 10.1016/j.solener.2010.03.008.
Visual Discomfort and Glare Rating Assessment of Integrated Daylighting and Electric Lighting Systems using HDR Imaging TechniquesArchitectural Science Review. 2010. DOI : 10.3763/asre.2009.0094.
Performance of Anidolic Daylighting Systems in tropical climates – Parametric studies for identification of main influencing factorsSolar Energy. 2010. DOI : 10.1016/j.solener.2010.01.014.
Editorial Solar Energy Journal - CISBAT 2007 Special IssueSolar Energy. 2010. DOI : 10.1016/j.solener.2010.02.013.
Modelling Complex Fenestration Systems using physical and virtual modelsSolar Energy. 2010. DOI : 10.1016/j.solener.2009.09.009.
Minimizing lighting power density in office rooms equipped with Anidolic Daylighting SystemsSolar Energy. 2010. DOI : 10.1016/j.solener.2009.05.001.
A generalised stochastic model for the simulation of occupant presenceEnergy And Buildings. 2008. DOI : 10.1016/j.enbuild.2007.01.018.
Editorial - CISBAT 2005 Special IssueSolar Energy. 2007. DOI : 10.1016/j.solener.2007.06.008.
On-site performance of electrochromic glazings coupled to an anidolic daylighting systemSolar Energy. 2007. DOI : 10.1016/j.solener.2007.01.011.
Sol-gel deposition and optical characterization of multilayered SiO2/Ti1-xSixO2 coatings on solar collector glassesSolar Energy Materials & Solar Cells. 2006. DOI : 10.1016/j.solmat.2006.05.003.
Solar Energy Journal - Special Issue CISBAT 2003Solar Energy. 2005. DOI : 10.1016/j.solener.2005.04.009.
Thin film multilayer design types for colored glazed thermal solar collectorsSolar Energy Materials & Solar Cells. 2005. DOI : 10.1016/j.solmat.2004.11.015.
Potential of quarterwave interference stacks for colored thermal solar collectorsSolar Energy. 2005. DOI : 10.1016/j.solener.2004.12.008.
Towards coloured glazed thermal solar collectorsSolar Energy Materials & Solar Cells. 2004. DOI : 10.1016/j.solmat.2004.02.042.
Special Issue : Proceedings of the International Conference on Solar Energy in Buildings CISBAT 2001, ForewordEnergy and Buildings. 2004. DOI : 10.1016/j.enbuild.2004.01.008.
On the feasibility of colored glazed thermal solar collectors based on thin film interference filtersSolar Energy Materials & Solar Cells. 2004. DOI : 10.1016/j.solmat.2004.02.045.
Implementing the Partial Daylight Factor Method under a Scanning Sky SimulatorSolar Energy. 2002. DOI : 10.1016/S0038-092X(02)00027-0.
Anidolic daylighting systemsSolar Energy. 2002. DOI : 10.1016/S0038-092X(02)00040-3.
Design of anidolic zenithal lightguides for daylighting of underground spacesSolar Energy. 2001. DOI : 10.1016/S0038-092X(01)00065-2.
Design and assessment of an anidolic light-ductEnergy & Buildings. 1998. DOI : 10.1016/S0378-7788(97)00066-2.
Bidirectionnal Photogoniometer for Advanced Glazing Materials Based on Digital Imaging TechniquesLighting Research and Technology. 1997. DOI : 10.1177/14771535970290040201.
Anidolic zenithal openings : Daylighting and shadingLighting Research and Technology. 1996. DOI : 10.1177/14771535960280010201.
Accounting free gains in a non residential building by means of an optimal stochastic controllerEnergy and Buildings. 1996. DOI : 10.1016/S0378-7788(96)00980-2.
On a Markovian approach for modeling passive solar devicesEnergy and Buildings. 1991. DOI : 10.1016/0378-7788(91)90003-L.
Les études à l'Ecole polytechnique fédérale de LausanneSchweizer Journal. 1989.
Using Markovian stochastic modelling to predict energy performances and thermal comfort of passive solar systemsEnergy and Buildings. 1987. DOI : 10.1016/0378-7788(87)90015-6.
Isolation between Amplifiers in a TEA CO2-Laser Using Absorbing GasesJournal of Physics D-Applied Physics. 1980. DOI : 10.1088/0022-3727/13/8/009.
Robust and sustainable cultivation of microalgae: recycling of nitrogen from liquid digestate and control of biological contaminationLausanne, EPFL, 2021. DOI : 10.5075/epfl-thesis-7812.
Alertness in work environments - on the role of indoor daylight exposureLausanne, EPFL, 2021. DOI : 10.5075/epfl-thesis-7980.
Optimization of a hybrid solar-geothermal energy system at building scaleHEPIA Geneva University of Applied Sciences and Arts Western Switzerland, 2021.
Teaching & PhD