Research Affiliates

CBE’s research affiliates are internationally recognized leaders in diverse fields including architecture, engineering, business, computer science and social science.

Carl Blumstein, PhD, is the Director of the California Institute for Energy and Environment (CIEE) and the Managing Director of the i4Energy Center. One of the founders of CIEE, he has 30 years of experience in energy research and R&D management. He served for 10 years as the Associate Director of CIEE before becoming the Director in 2002. As Associate Director he represented UC in the regulatory and legislative proceedings that lead to the establishment of the California Energy Commission’s Public Interest Energy Research (PIER) program. He has worked with the PIER program in a variety of capacities since the program began in 1998. He also has a research appointment at the UC Energy Institute where he has been an Energy Policy Analyst since 1981. Dr. Blumstein is Chairman of the Board of Directors of the American Council for an Energy-Efficient Economy (ACEEE), Vice Chair of the Board of Trustees of the Consortium for Energy Efficiency, and a member of the Gas Technology Institute’s Public Interest Advisory Committee. He served on the Board of Governors of the California Power Exchange from 1997 to 2003. He has a BS from Reed College, an MS from San Diego State University, and a PhD from the UC San Diego in Chemistry.

Francesco Borrelli received the `Laurea' degree in computer science engineering in 1998 from the University of Naples `Federico II', Italy. In 2002 he received the PhD from the Automatic Control Laboratory at ETH-Zurich, Switzerland. He is currently an Associate Professor at the Department of Mechanical Engineering of the University of California at Berkeley, USA. He is the author of more than fifty publications and in the field of predictive control. He is author of the book Constrained Optimal Control of Linear and Hybrid Systems published by Springer Verlag, the winner of the `Innovation Prize 2004' from the ElectroSwiss Foundation and the winner of the 2009 NSF CAREER award. In 2008 he was appointed the chair of the IEEE technical committee on automotive control. His research interests include constrained optimal control, model predictive control and its application to advanced automotive control and energy efficient building operation.

Karl Brown is Deputy Director of the California Institute for Energy and Environment (CIEE) at the University of California (UC). With over twenty-five years experience in energy systems, Karl helps coordinate CIEE operations, manages RD&D in building end-use energy efficiency, and assists with energy planning for UC facilities. Karl was named “Energy Engineer of the Year” in 2003 by the Association of Energy Engineers Bay Area Chapter, and received the 2008 “Go Beyond” Award from the International Institute for Sustainable Laboratories and R&D Magazine for his contributions to the Laboratories for the 21st Century Program. In 2010, Karl was honored as the UC Sustainability Champion for his leadership role in the planning and documentation of deep energy efficiency at UC’s new Merced campus and for his role in the adoption of monitoring-based commissioning practices at UC facilities. He was also recognized for his substantial contributions to the development of the UC system’s Policy on Sustainable Practices. Karl is currently thinking about how to scale up these deep efficiency initiatives.

Fred Buhl is a Senior Scientific Engineering Associate and veteran building simulation program developer with over 30 years of experience in developing simulation models for commercial building HVAC systems. He is a co-author of DOE-2 and EnergyPlus, making significant contributions to the simulation of HVAC systems in each program. He led the Simulation Research Group for three years and acted as PI for the DOE-funded project to develop EnergyPlus. He is a co-awardee of the R&D 100 award for his work on the development of EnergyPlus.

Duncan Callaway received his PhD in Theoretical and Applied Mechanics from Cornell University in 2001 and subsequently held an NSF Postdoctoral Fellowship in the Department of Environmental Science and Policy at the University of California, Davis. He then spent 4 years working in the energy industry in senior engineering positions, first at Davis Energy Group and later at PowerLight Corporation. He was a member of the research faculty at the University of Michigan from 2006-2009. He is now an Assistant Professor of Energy and Resources and Mechanical Engineering at the University of California, Berkeley and a faculty scientist at Lawrence Berkeley Laboratory. Professor Callaway’s work can be categorized in three areas: modeling and control of aggregated storage devices; power management in buildings and vehicles; and system analysis of energy technologies and their impact. His research involves the use of a variety of methods, including stochastic modeling, system identification, dynamics and control, and spatial analysis.

Rick Diamond, PhD, is a Staff Scientist and Deputy Group Leader of the Energy Performance of Buildings Group. His research has focused on consumer behavior and user interactions with the built environment, including post occupancy evaluations of housing, schools and work environments. Diamond was the convener for the commercial building sector for the California Long-Term Energy-Efficiency Plan, and recently led the effort to provide a strategic plan and technical assistance for the greening of the U.S. House of Representatives. He is also a Senior Advisor at the California Institute for Energy and Environment, (CIEE), where he is working to develop support for research and development in behavior and decision making related to energy efficiency. He has been on the faculty at Harvard University’s Graduate School of Design, the California College of Arts and Crafts, and as a visiting professor in the Architecture Department at UC Berkeley. He has a BA in Visual and Environmental Studies from Harvard College, and an M. Arch and Ph.D. from the University of California at Berkeley.

William Fisk holds an MS in mechanical engineering. He is a Senior Staff Scientist and Group Leader of the Indoor Environment Group at Lawrence Berkeley National Laboratory. He has conducted research on indoor environments since 1980, has authored or co-authored approximately 100 related journal or conference papers. His research interests include indoor pollutant exposure, sick building syndrome, advanced ventilation and air cleaning technologies, use of tracer gases to study ventilation and indoor air flow, indoor air quality control technologies, and the relationship between indoor environmental quality and health and productivity. Mr. Fisk is a member of the Editorial Board for the journal Indoor Air (1989-present), is an ASHRAE Fellow, and is a member of the International Academy of Indoor Air Sciences.

Ashok Gadgil has a doctorate in physics from Berkeley. He is Rudd Foundation Distinguished Professor of Civil and Environmental Engineering at UC Berkeley, and Director of Environmental Energy Technologies Division at Lawrence Berkeley National Laboratory. He has conducted research in building energy simulation, indoor heat transfer, airflow, and pollutant entry into and transport within buildings. He has led research on protecting building occupants from indoor release of airborne chemical and biological toxicants. He is the co-Chief Editor of the Annual Reviews of Environment and Resources, and an elected Fellow of the American Physical Society. He has won numerous awards and honors, including the Heinz Award for the Environment in 2009, Sustainability Pioneer Award in 2010, the European Inventor Award in 2011, and the Zayed Future Energy Prize in 2012.

Philip Haves, PhD, is the Leader of the Simulation Research Group. He has worked on different aspects of commercial buildings since 1986, with particular interests in simulation and in building operations. He is a Fellow of ASHRAE, the chair of its Technical Committee on Energy Calculations and a former Chair of its Technical Committee on Building Operation Dynamics. He is the immediate past president of IBPSA-USA, the US affiliate of the International Building Performance Simulation Association. He has a BA in Physics from Oxford University and a PhD in Radio Astronomy from Manchester University.

Andrew Krioukov is the CEO and Co-Founder of Building Robotics. As a Ph.D Candidate in Computer Science at U.C. Berkeley, he worked on software infrastructure for implementing building applications at scale. He has previously worked at Intel Research, Google and IBM on energy efficiency and large-scale distributed systems. Andrew is a recipient of the 2014 Forbes 30 Under 30 award in Energy & Industry.

Dusan Licina is a Postdoctoral researcher in the Department of Civil and Environmental Engineering at UC Berkeley, working with Professor William Nazaroff. His overall research interests includes sustainable and healthy building design, ventilation and building airflow, aerosol dynamics, the implications of HVAC systems in air quality and energy consumption, and transport and control of airborne pollutants. Dusan received a Master of Mechanical Engineering from University of Belgrade in 2010. In 2011, he commenced doctoral studies under a joined PhD program between National University of Singapore (Department of Building) and Technical University of Denmark (International Center for Indoor Environment and Energy). His research involves studying the airflow characteristics around the human body and its impact on the contaminant transport. Dusan’s work contributes to a better understanding of how room air distribution affects airborne pathogen transmission and how to be optimally designed in order to decrease the risk of human exposure. In parallel to his PhD studies, he was involved in teaching duties at both universities and he is a past president of the ASHRAE Student branch at National University of Singapore and ISIAQ current student representative.

Paul Mathew, PhD, is a Staff Scientist and Group Leader of the Commercial Building Systems group at Lawrence Berkeley National Laboratory (LBNL), where he conducts applied research and market transformation activities on energy use in buildings. His current work is focused on energy benchmarking tools and techniques for commercial buildings, energy-related risk analysis, as well as energy efficiency for laboratories and data centers. Prior to joining LBNL, he worked at Enron Energy Services and the Center for Building Performance at Carnegie Mellon University. He has a Bachelor’s degree in Architecture, and a Ph.D. in Building Performance and Diagnostics.

Mark P. Modera is a Professor in Civil and Environmental Engineering, as well as Mechanical and Aerospace Engineering, and holds the Sempra Energy Chair in Energy Efficiency, all at UC Davis. Professor Modera is also the Director of the UC Davis Western Cooling Efficiency Center (WCEC), and a Fellow of the American Society of Heating Refrigerating and Air-conditioning Engineers. Dr. Modera joined the WCEC from Carrier Corp., and from Lawrence Berkeley National Laboratory (LBNL). At LBNL, Dr. Modera was a Principal Investigator on many research projects, and developed a new research program focused on thermal energy distribution in buildings. While at LBNL, Mark developed an aerosol-based duct sealing process, and he subsequently established Aeroseal, Inc. to commercialize the technology. Aeroseal’s technical success and market promise became recognized by Carrier, who bought the business in 2001 and retained Mark to help manage it. The WCEC currently consists of more than 20 people working to help facilitate the implementation of efficient HVAC technologies through manufacturer/utility/customer partnerships, as well to develop and test new energy-efficient and peak-demand-sensitive HVAC technologies.

William W. Nazaroff, PhD, is the Daniel Tellep Distinguished Professor of Engineering in the Department of Civil and Environmental Engineering at UC Berkeley. He earned his PhD degree in Environmental Engineering Science at Cal Tech after completing a BA in Physics and a Master of Engineering degree in Electrical Engineering and Computer Science at UC Berkeley. Prof. Nazaroff's research focuses on understanding the factors that govern the concentrations and fates of indoor air pollutants. His research group is also studying source-receptor relationships for characterizing human exposure to air pollutants. He serves as Editor-in-Chief of Indoor Air. He is a Fellow of the American Association for Aerosol Research, a member of the Academy of Fellows of the International Society of Indoor Air Quality and Climate.

Therese Peffer, PhD, works on Demand Response, Smart Grid and "Building-to-Grid" research projects. She supports the University of California’s i4Energy Center, working on projects based at CITRIS and the Lawrence Berkeley National Laboratory. Her current focus, energy consumption displays, thermostats, and consumer behavior, includes developing metrics for EnergyStar specifications on climate controls, and other user interface usability research. Therese's doctoral research at UC Berkeley involved residential demand-response enabling technology, including the design of an in-home energy display/thermostat device. As an architect, she has worked in small firms in San Francisco and Pismo Beach. Therese earned a Master’s degree in Architecture at the University of Oregon in 1998. She formerly lived on a solar- and wind-powered homestead in southern Oregon and wrote for Home Power magazine.

Mary Ann Piette is the Deputy of the Building Technologies Department, and Group Leader of the Commercial Buildings Systems Group and the Demand Response Research Center. The DRRC recently developed the Open Automated Demand Response Communications Specification which is a key element of the NIST Smart Grid standards. During her more than 25 years with LBNL she has gained extensive experience developing and evaluating low-energy and demand response technologies for buildings. She specializes in commissioning, energy information systems, benchmarking, and diagnostics and has authored over 100 papers and several book chapters. In 2006 Ms Piette received the Benner Award at the National Conference on Building Commissioning for contributions to making commissioning “business as usual”. Ms. Piette completed her BA UC Berkeley in Physical Science. She has a MS in Mechanical Engineering from UC Berkeley and a Licentiate in Building Services Engineering from the Chalmers University of Technology in Sweden. She is a member of ASHRAE, and recently elected to the NIST Smart Grid Architecture Committee.

Cindy Regnier, P.E., P.Eng., LEED AP, is Group Leader for Commercial Building Systems at Lawrence Berkeley National Lab in the U.S., and Executive Manager for FLEXLAB, the U.S. Department of Energy’s newest building technologies testing facility – the Facility for Low Energy Experiments in Buildings. FLEXLAB is a series of testbeds focused on low energy integrated systems, building technologies and controls research. She also manages the Commercial Buildings Partnerships Program overseeing technical assistance for deep, low energy projects, and manages a project to develop tools for small commercial deployed through a community scale approach, the 2030 Districts. Prior to joining the lab in 2009, she spent over 13 years as a mechanical design engineer, focusing on integrated HVAC design for innovative deep low energy projects, including an AIA COTE Top 10 winner, several LEED Platinum buildings, and a net zero energy, carbon neutral science museum. Her Bachelor’s degree is in Mathematics and Engineering, with a specialty in Mechanical Engineering from Queen’s University in Canada.

Stephen Selkowitz is Group Leader, Windows and Building Envelope Materials, and Strategic Advisor for Building Technology and Urban Systems at Lawrence Berkeley National Laboratory. He has over 35 years of experience in building energy performance and sustainable design, with an emphasis on RD&D of energy efficient technologies, systems and design practices. Projects range from basic materials research for glazing and daylighting to development of energy simulation tools for integrated building design and operations, and from near term field demonstrations of emerging technologies to research supporting “net zero energy” buildings. He led the proposal team for LBNL’s new FLEXLAB, the Facility for Low Energy eXperiments in Buildings. The research program balances R&D with an aggressive technology transfer effort so that research results are effectively adopted by the building industry. Selkowitz participates in a wide range of building industry, government, and professional activities in the U.S. and internationally, and author of over 170 publications and holds 2 patents. In 2012 he was the recipient of the first LBNL Lifetime Achievement Award for Societal Impact and in 2014 he received the McGraw Hill/ENR 2014 Award of Excellence for “relentlessly working to reduce the carbon footprint of buildings and for moving the nation towards better building performance.” He holds an AB degree from Harvard College with a major in Physics and an MFA in Environmental Design from California Institute of the Arts.

Kyle Steinfeld is an Assistant Professor specializing in digital design technologies in the Department of Architecture at University of California Berkeley, where he teaches undergraduate and graduate design studios, core courses in architectural representation, and advanced seminars in digital modeling and visualization. Professionally, he has worked with and consulted for a number of design firms, including Skidmore Owings and Merrill, Acconci Studio, Kohn Petersen Fox Associates, Howler/Yoon, Diller Scofidio Renfro, TEN Arquitectos, and others. His research interests include collaborative design technology platforms and bioclimatic design visualization. Kyle hails from the humid swamps of Northern Florida, holds a Masters of Architecture from MIT and a Bachelor's Degree in Design from the University of Florida.

M. Susan Ubbelohde is a Professor in the Department of Architecture at University of California, Berkeley where she teaches graduate design studios and seminars in design theory, lighting design, high performance facades and sustainability. She received an AB degree from Oberlin College in Urban Studies, a BS from the University of Michigan in Architecture and her MArch from the University of Oregon. As Principal of Loisos + Ubbelohde Associates since 1994, she has led consulting and design services for a wide range of projects including corporate headquarters, commercial office buildings, schools, low- carbon and zero-energy residential projects, university facilities, laboratories, and sustainable demonstration buildings. L+U projects have received 29 AIA design and sustainability awards, including three projects that have received the AIA/COTE Top Ten Green Projects Award. Sixteen of our projects have been LEED certified, including five Platinum certifications. Susan has directed research for the U.S. Department of Energy, the National Science Foundation, the University of California Energy Institute, and the California Institute for Energy Efficiency on daylighting design, daylighting software, climate responsive design and monitored building performance. Her research includes the development and evaluation of design tools as well as building performance prediction and field evaluation. She has examined the use of daylighting controls and emerging electrical lighting technologies to reduce peak electrical demands, monitored thermal performance of buildings in India and the United States, and performed extensive evaluation and development of daylighting software. Susan has received the Progressive Architecture Research Award, the Morse-Alumni Award for Undergraduate Teaching and a CIES/Fulbright Indo-American Fellowship to support research on building thermal performance in India. Her professional affiliations include AIA, USGBC, ACHPS, IESNA and ASES.

Jennifer Wolch is Dean of the College of Environmental Design, and Professor of City and Regional Planning at UC Berkeley. Dean Wolch is a leading scholar of urban analysis and planning. Her past work focused on urban homelessness and the delivery of affordable housing and human services for poor people. She has also studied urban sprawl and alternative approaches to city-building such as smart growth and new urbanism. Her most recent work analyzes connections between city form, physical activity, and public health, and develops strategies to improve access to urban parks and recreational resources. The founding director of the University of Southern California’s Center for Sustainable Cities, Wolch worked to promote sustainable metropolitan development through research, education, and policy outreach programs. She also headed the Green Vision Plan for 21st Century Southern California, a planning guide for habitat conservation, watershed health, and recreational open space.
Wolch has authored or co-authored over 100 academic journal articles and book chapters. She was also a recipient of fellowships from the Guggenheim Foundation, Center for Advanced Study in the Behavioral Sciences, the Rockefeller Foundation’s Bellagio Study Center, and other prestigious honors.

Paul Wright, PhD, was born in London and obtained his degrees at the University of Birmingham, England. He is the A. Martin Berlin Professor of Mechanical Engineering at Berkeley. He is also the co-chairman of the Management of Technology Program, and the Associate Dean for Distance Learning and Instructional Technology in the College of Engineering. He has co-authored over 200 articles for journals and conferences, as well as co-authored "Manufacturing Intelligence", with D.A. Bourne, and "Metal Cutting", with E.M.Trent. His most recent book, "21st Century Manufacturing," just won the book of the year award from the Society of Manufacturing Engineers. Recent research accomplishments are in “Internet-based CAD/CAM Systems” based on the “CyberCut” project. The work takes place in the Ford Prototyping Studio and Manufacturing Laboratory, a 2000 sq.ft. space on the 2nd Floor of Etcheverry Hall at Berkeley, which is being used for teaching and research. In the last year, the Studio has prototyped energy-scavenging, pico-radio systems for the Berkeley Wireless Research Center (BWRC), small “mote” platforms and the Personal Server device for Intel, fire-rescue products for the Chicago Fire Department, in-tire sensors for Pirelli, and (in newer work) Demand-Response thermostats, nodes and meters for the California Energy Commission. All these projects are under the CITRIS umbrella.