Each Challenge has a designated panel of expert judges that convene to review and discuss any ideas that have been submitted to that specific Challenge. Judges only review the Challenge most relevant to their area of expertise. Challenges have three judges at minimum.

Lindsay Baker

Lindsay Baker is the President of Building Robotics, leading relationship building and serving as our chief evangelist for Comfy. An established thought leader and writer in the green building community, Lindsay was previously at Google, working as a sustainable operations consultant. She is a Ph.D. Candidate in Building Science at U.C. Berkeley, and was on the original staff team developing the LEED Rating System at USGBC.

Mark Banta

Mark Banta is currently the Manager for Research & Development and Advanced Systems at GE Appliances. He leads a team of Senior Level Engineers responsible for creating a future pipeline of industry leading features for current products and new products for growth. Mark has over 25 years of experience working in Product Design and Development at GE Appliances in the areas of Washer, Dishwasher, Refrigeration and Innovation. Mark holds a BSME and MEng Degree from the University of Louisville.

Fred Bauman

Fred S. Bauman, P.E., is a Project Scientist at the Center for the Built Environment at UC Berkeley, leading CBE’s research program on advanced integrated systems with a focus on radiant slab cooling (thermally activated building systems, TABS). He is the Principal Investigator for California’s EPIC Program, "Optimizing Radiant Systems for Energy Efficiency and Comfort." Fred was the author of the first Underfloor Air Distribution (UFAD) Design Guide, published by ASHRAE. He has written more than 60 technical articles on UFAD, displacement ventilation, and radiant systems. He received an MS degree in Mechanical Engineering from UC Berkeley, and a BS in Mathematics from Harvey Mudd College

Raphael Carty

Currently, CEO and Head of Product at Callida Energy, Raphael Carty has over 20 years of leadership experience commercializing innovative software technology beginning in Silicon Valley with Hewlett-Packard Information Networks Division. As a new HP product manager, Raphael performed the initial product market investigation and business requirements definition leading to the successful HP OpenView network management product line. Raphael has also taught in the Marketing department at Harvard Business School, served as VP Product Management and CMO at CertCo a venture-backed information security startup, built a startup ecommerce business to $55 million in 2 years at Chase Credit Cards and headed Marketing at DealerTrack (NASDAQ:TRAK) a SaaS application software provider. Raphael received an MBA with Distinction from Harvard Business School and a bachelor’s degree in Engineering/Computer Science from Harvard College.

Andre Desjarlais

André Desjarlais is the Program Manager for the Building Envelope Research Program at the Oak Ridge National Laboratory. He has been involved in building envelope and materials research for over 40 years, first as a consultant and, for the last 24 years, at ORNL. Areas of expertise include building envelope and material energy efficiency, moisture control, and durability. Desjarlais has been a Member of American Society for Testing and Materials (ASTM) since 1987 and serves on Committees C16 on Thermal Insulation and D08 on Roofing. He is the past Chairman of ASTM Committee C16 and was awarded the title of Fellow in 2011. He now serves as the chairman of ASTM’s committee on Technical Committee Operations (COTCO). He has been a member of ASHRAE since 1991 and serves on Technical Committees TC 4.4 on Thermal Insulation and Building Systems, TC 1.8 on Mechanical Insulation Systems, and TC 1.12 on Moisture Control in Buildings, and is past Chairman of TC 4.4. André is also a founding director of the RCI Foundation.

Steve Dunn

Steve Dunn is a Project Manager with the U.S. Department of Energy, Building Technologies Office, responsible for developing new initiatives to advance residential energy efficiency. He has worked in the public and private sectors for twenty years, focused on innovative approaches to advancing energy efficiency, renewable energy policies and programs at the state and local levels. At DOE, he supported the development and implementation of the Better Buildings Neighborhood Program, managing a $500 million Recovery Act portfolio comprised of more than 40 programs nationwide, and is staff lead for the SEE Action Residential Retrofit Working Group. He has published reports, studies and articles on advanced building energy codes, state clean energy policies, and energy efficiency financing programs and investment strategies. Mr. Dunn holds a Bachelors Degree in environmental studies from the University of California at Santa Cruz, and a Masters Degree in Environmental Management from the School of Forestry and Environmental Studies at Yale University.

John Ellis

John has held several roles at Siemens from engineering to sales support and is currently a Senior Strategist at Siemens. He monitors industry trends, leads innovation projects, and provides strategic consulting and research services. John holds a BS in Mechanical Engineering, an MS in Engineering Management, an MBA in Marketing, is a certified Project Management Professional (PMP), and a LEED AP Building Design and Construction.

Brian Fricke

Dr. Brian Fricke is an R&D Staff member in the Building Equipment Research Group at the Oak Ridge National Laboratory (ORNL). He has over 15 years of experience in the areas of commercial and industrial refrigeration. Dr. Fricke has analyzed the energy and environmental impacts of various commercial refrigeration systems and has studied the energy consumption and sales productivity of open and doored vertical refrigerated display cases. He has also enhanced the refrigeration modeling capabilities of the whole building energy modeling tool, EnergyPlus, including modeling of transcritical CO2 booster systems and two-stage compression systems. Dr. Fricke has authored or co-authored over 150 journal articles, chapters in books, presentations and research reports. Dr. Fricke is an active member of the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), where he is a member of Technical Committee (TC) 10.7, Commercial Food and Beverage Cooling Display and Storage; Standing Standards Project Committee (SSPC) 34, Designation and Safety Classification of Refrigerants; and the Multidisciplinary Task Group on Low GWP Refrigerants. In addition, Dr. Fricke is a member of the International Institute of Refrigeration (IIR) where he serves as a vice-chairman of Commission C2 (Food Science and Engineering) and newsletter editor for the U.S. National Committee of the IIR.

Kyle Gluesenkamp

Dr. Kyle R. Gluesenkamp joined ORNL in 2012. He is an expert in thermodynamic cycle analysis and experimental evaluation, with research focusing on energy efficient water heating, appliances and sorption systems. He has published a book chapter, 16 conference and journal articles, numerous invention records, contributed to the IEA Heat Pump Program Annex 34 Final Report, and has been invited to present his work in Europe, Asia and North America for industrial and academic audiences.

Mark Graham

Mark S. Graham holds a Bachelor of Science degree in Architectural Engineering from the Milwaukee School of Engineering. In 1984, he began his career in the roofing industry when he joined F.J.A. Christiansen Roofing Co. Inc. in Milwaukee as an estimator and project manager. In 1986, he joined Wiss, Janney, Elstner Associates Inc., in Northbrook, Ill., as a project engineer specializing in the investigation, design and repair of roof and waterproofing systems. Graham joined NRCA in 1993 and is responsible for the association's Technical Services Section. Responsibilities of this section include response to inquiries for technical information and assistance, serving as the association's technical liaison with outside organizations, and developing and maintaining the association's technical documents, including The NRCA Roofing and Waterproofing Manual. Graham is the staff liaison to NRCA's Technical Operations Committee and Manual Update Committee. He also is contributing editor for Professional Roofing magazine. Graham is a member of the American Society for Testing and Materials (ASTM) and is active in ASTM Committees D-8—Roofing and Waterproofing, C-16—Thermal Insulation, E-5—Fire Standards, and E-6—Performance of Buildings. He also is a member of the American Society of Heating, Refrigerating and Air-Conditioning Engineers Inc., International Code Council and National Fire Protection Association.

Erik Hitzelberger

Erik Hitzelberger is currently the Advanced Systems Manager for Refrigeration at GE Appliances. He leads a team of Technical Directors and Senior Engineers who primarily focus on Core Technologies including energy reduction. Erik has introduced a number of appliance products into the marketplace over the last 20 years and has over 30 issued or pending patents. He earned a BSME at Tennessee Technological University and MBa at Eastern Kentucky University.

Raphael Imhof

As Director of Strategy for the Building Technologies Division of Siemens, Raphael Imhof leads the development and execution of the building technology portfolio across the Americas. With 20 years of experience in building control products and systems, he drives the innovation strategy efforts for Siemens to enhance the integration of hardware and software platforms across the company’s building automation, fire and security system portfolio.

Mike Kearney

Mike Kearney has been in the building infrastructure industry for 26 years with demonstrated performance in areas of energy solutions, marketing, sales management, business development, staffing and client relations. He has been with Siemens since May 1997 and has held positions of increasing responsibility within the company. Currently, Mike is the Sr. Director of Enterprise Client Solutions for the Americas Building Technologies Division of Siemens Industry. In his role, he is responsible for leading and working with sales executives, client managers, engineers, project managers and program managers to deliver outstanding value to enterprise clients throughout the Americas. Mike and his staff work to create innovative, cost-effective solutions for building and facility owners operating in almost every sector of the economy. Under his leadership, a network of Siemens representatives deliver comprehensive solutions and services that make buildings safer, more comfortable, energy efficient, sustainable and reliable. Mike holds a Bachelor of Science in Mechanical Engineering from the University of Illinois. He is a LEED Accredited Professional (AP) and is on the Board of Directors for the National Association of Energy Service Companies (NAESCO).

Emily Kemper

Emily Kemper is a licensed architect, building science expert, and proponent of smart and high performance homes. She received her BArch from the University of Cincinnati and her Master of Building Science from the University of Southern California. Ms. Kemper manages CLEAResult’s engineering and technical team in support of residential energy efficiency programs and projects across the country.

Kurt Koch

Kurt Koch holds a BS Degree in Civil Engineering from Clemson University as well as an MBA from the University of Washington in Seattle. Kurt is a professional engineer with registration in 20 States. For most of his career, Kurt has been involved in the structural design of buildings utilizing a variety of building materials with a particular expertise in design with wood and engineered wood. After gaining experience with several consulting structural engineering firms, he started a consulting engineering practice in suburban Washington DC where he was a partner in the firm for 4 years. After working for Weyerhaeuser as a Senior Engineer and as a General Manager for a new business unit, Kurt joined Huber Engineered Woods LLC (HEW) in 2003. He is currently the Vice President of Product Engineering & Innovation and works out of the Charlotte office. Kurt is responsible for Building Code recognition for HEW specialty products, training and education activity, technical support services related to in-field product use and new product innovation. Kurt is a LEED GA and an ICC Green Building Residential Examiner.

Christian Kohler

Christian Kohler is a researcher at the Windows and Envelope Materials Group at Lawrence Berkeley National Laboratory. For over 18 years he has been involved in all aspects of software development for various tools (THERM, WINDOW, Optics5) and the development of highly insulating and dynamic windows. His activities include algorithm development, user support, training, developing embedded controllers and experimental work on highly insulating and dynamic windows. Prior to that he was working at the LBNL Infrared Thermography research facility. He received his Masters degree in Building Physics in 1997 from Eindhoven University of Technology in the Netherlands.

Nanette Lockwood

Nanette Lockwood is the global director of Policy and Advocacy for the Center for Energy Efficiency and Sustainability (CEES) at Ingersoll Rand. In this role, Lockwood is responsible for leading global advocacy efforts for climate-related policies for Ingersoll Rand. She also leads the company’s U.S. and international efforts on refrigerant policies and is actively involved in the United Nations Framework Convention on Climate Change and Montreal Protocol processes. The CEES is a unique global organization that sits in the Office of the CTO and is designed to make sustainability core to Trane and Ingersoll Rand. Nanette Leads company-wide efforts to influence climate-related building codes, standards and policies impacting products to gain market advantage.

Nanette also serves as an internal and external thought leader and connects leaders and strategic brands (Club Car, Ingersoll Rand, Trane and Thermo King) with NGO partners, government agencies, academic institutions, and strategic partners to meet growth and business targets. Lockwood has more than 14 years of state and national codes, standards and policy advocacy experience with increasing responsibility in the energy and building sectors. Prior positions include director of Engineering and Building Codes for the Institute for Business and Home Safety, an insurance-funded association dedicated to increasing the natural disaster resistance of the U.S. built environment. Lockwood has advanced engineering and law degrees and is a Florida registered professional engineer.

Timothy Lynch

Timothy Lynch PE is the VP of Energy Engineering at Callida Energy. Timothy is a Certified Energy Manager with over 30 years of experience as a professional engineer delivering energy efficiency, load management, auditing and sustainability services to commercial and residential properties. Tim is an Adjunct Professor at CUNY and is President of the New York City chapter of the Association of Energy Engineers. He was named the Energy Engineer of the Year in 2012 for the Association of Energy Engineers Region 1 and the Energy Engineer of the Year in 2011 for the NYC chapter. Tim has held leadership positions at Con Ed and SAIC. Tim received a BEE from the University of Detroit and an MS Mechanical Engineering from Stevens Institute of Technology.

Isaac Mahderekal

Dr. Mahderekal leads the research and development efforts at Intellichoice Energy. For the past eleven years, his area of research and product development has been in building technologies and integration. In his ongoing role at Intellichoice Energy, he lead Cooperative Research and Development Agreement (CRADA) collaborations with Department of Energy/ National Laboratories, Department of Defense and utility partners that result in more efficient building equipment options in the marketplace. His most recent collaboration resulted in the market introduction of a natural gas heat pump rooftop unit that was honored with an R&D 100 Award in 2011 and a patent.

David Maruna

David Maruna is an Intelligent Systems growth manager for TRANE ® Commercial. David works with portfolio product teams to provide next generation, efficient solutions to lower environmental impact and reduce greenhouse gas emissions of critical building systems in which people work, play, heal and create. Currently assigned to the office of Product Management Excellence, David works with Trane engineering leaders to ideate, generate, develop and launch climate and energy solutions for a global customer base. David holds an M.B.A. from the UVa Darden school of business, is a former member of the Special Operations community and a 1995 graduate of the U.S. Naval Academy. He is active in the start-up community in Charlotte, NC and mentors several entrepreneurs in the Mid-Atlantic region.

Steve Memory

Since 2009, Dr. Steve Memory has been a Director at the Corporate Technology Center for A. O. Smith Corporation, a major manufacturer of residential and commercial water heating, water treating and boilers. He received his Ph.D in Mechanical Engineering from the University of London in 1989. Upon graduation, he taught for 7 years in the US at the Naval Postgraduate School in California and the University of Miami in Florida. In 1997 he joined Modine Manufacturing Co, leading their vehicular HVAC group. He is a registered PE in the state of Florida and obtained his MBA from the University of Wisconsin in 2003.

Claire Miziolek

Claire Miziolek is the Market Strategies Program Manager at Northeast Energy Efficiency Partnerships (NEEP). Her role is to help speed the adoption of efficiency solutions in the Northeast and Mid-Atlantic. Claire manages NEEP's work in Consumer Electronics, Home Energy Management Systems, and Residential Lighting and is working to develop strategies and recommendations to bring these efficient technologies to broader scale and ultimately decrease the amount of energy homes and businesses use.

Mike Moats

Mike Moats heads up the Marketing & Strategy organization at Siemens Building Technologies. Mike has worked to translate research insights into actionable strategies and inspired breakthrough programs to position Siemens as a leader in the Building Technology space. In his role, he has oversight for the strategic direction of Siemens Building Technologies, deriving customer insights from hard to reach business-to-business sectors. Mike's organization Includes business line marketing , vertical marketing, business intelligence, and customer voice initiatives. Mike's team, works directly with in-house research, creative and client service teams to instill the voice of the customer in all marketing programs. Moats started with Siemens in 1999 as Manager of Proposals and Contracts with the facility management group. His other duties within Building Technologies have included Pricing Manager for Controls and Product Business, where he focused on market intelligence, value pricing and our international market strategy. Mike is a graduate of Iowa State University with a degree in Political Science and earned his MBA from George Mason University in 1999.

Samuel Yana Motta

Samuel F. Yana Motta received his BS degree from the National Engineering University in his native Peru, and his Ph.D. from the Catholic University (Brazil), all in mechanical engineering. Following a Guest Researcher appointment at the National Institute of Standards (Thermal Machinery Group – Gaithersburg, MD, USA), he joined Honeywell as a Scientist in the Buffalo Research Laboratory in 2000. At Honeywell, he participated in the development of new environment-friendly refrigerants such as HFO-1234yf and HFO-1234ze. He has also assumed positions of increasing responsibility and leadership in the development of such fluids. He now leads the Global R&D teams responsible for developing new heat transfer fluids.

Ralph Muehleisen

Dr. Ralph T Muehleisen is the Principal Building Scientist and Lead of the Building Energy Decision and Technology Research (BEDTR) program in the Energy Systems Division of Argonne National Laboratory. At Argonne, Dr. Muehleisen leads research to increase the energy efficiency of the built environment, including advanced building energy and urban scale modeling, development and deployment of energy efficient technologies, and development innovative building envelope diagnostic equipment. Dr. Muehleisen is a licensed Professional Engineer, a LEED BD+C Accredited Professional. He is a member of the Board of Directors of the Midwest Energy Efficiency Alliance (MEEA), Vice Chair of the Chicago Chapter of the International Building Performance Simulation Association (IBPSA), Chair of the ASHRAE subcommittee on Data Driven Modeling, and an active member of many professional organizations.

Hung Pham

Hung Pham is Director Integrated Technologies within Emerson Climate Technologies Air Conditioning Business. Hung joined Emerson since 1986 after ten years with GE and Trane. He has over 35 years of experience in advanced HVAC system technology involving refrigerants, comfort control algorithms, diagnostic solutions and system integration. He has been named inventor or co-inventor on over (70) U.S. patents.

Helene Hardy Pierce

Helene is Vice President of Technical Services, Codes, and Industry Relations for GAF. Helene has spent over 36 years in the roofing industry and has been very active in many of the industry’s organizations. She received the ASTM Award of Merit and title of Fellow from ASTM Committee D08 on Roofing, Waterproofing and Bituminous Materials in 1998, the James Q. McCawley award from the Midwest Roofing Contractors Association in 1999 for contributions to the roofing industry, and the title of Fellow of the Institute from the Roof Consultants Institute in 2005.

Helene serves as the current Chair for the PIMA Board of Directors and is a director for SPRI, RCMA, and the RCI Foundation. Helene is also Vice Chair of ASTM Committee D08 on Roofing and Waterproofing.

Joshua Posamentier

Joshua Posamentier is a Principal with Prelude Ventures, joining in 2012 after a successful career as an operating executive and engineer in which he brought to market products in wireless, optics, and energy management sectors. He is focused on disruptive alternative energy companies, actively helping them grow and succeed. Joshua has over 50 patents issued or pending and holds a BA in physics from the University California at Berkeley and MBAs from the Columbia Business School and the Haas School of Business. He serves on the board of directors for Heliotrope and also works with Sense Labs, Quantumscape, Aquion, and yerdle.

Allen Sealock

ZIP System® Products Director Allen Sealock has served in diverse leadership roles across Huber Engineered Woods in his 10-years with the specialty building products manufacturer. While Allen has held cross-functional positions from manufacturing and R&D to product development and marketing, he has maintained a subject matter focus on building science and product performance. A graduate of the University of Georgia with a bachelor’s and master’s of science degrees in Forest Resources, he has also completed HERS rating and Passive House training and is an active participant in a range of industry organizations promoting best design and construction practices.

Reshma Singh

Reshma Singh is the Program Director for the Center for Building Energy Research and Development (CBERD) at Lawrence Berkeley National Lab. She is focused on Energy Information Systems as part of IoT for smart building energy efficiency and comfort. Apart from her professional life, she teaches dance and recently co-produced an acclaimed children's musical. Reshma holds a Masters degree in Landscape Architecture from Harvard University, a Bachelors degree in Architecture from New Delhi, India and is a LEED Accredited Professional and PMP.

Karma Sawyer

Dr. Karma Sawyer is the Technology Manager for Windows & Envelope and Technology-to-Market at BTO. Sawyer joined DOE in 2010 as an ARPA-E fellow and later became an Assistant Program Director. She has a B.S. and Ph.D. in Chemistry and has studied phonon localization, homogeneous catalysis and direct air CO2 capture. She has been named an Excellence in Government fellow, a AAAS Science and Technology Policy fellow and a fellow at the ACS Petroleum Research Fund.

Norman Trapp

Norman Trapp is the Director of SW Engineering for Siemens Building Technologies Americas R&D since July 2014, leading a team of Software/System Architects, Software Developers & Testers, Project Leads and Technical Writers. Norman is a Siemens certified Software and System Architect with a masters degree in Computer Science. Before joining BT, he worked for Siemens Healthcare beginning in 2002, mainly within the Oncology (Cancer Therapy) domain as a Business Analyst, SW Developer, SW Tester, Technical and Offshoring Lead, SW and System Architect and System Engineer.

Timothy Wagner

Dr. Tim Wagner is a Principal Engineer at United Technologies Research Center (UTRC). He is currently serving as Deputy Director of the Consortium for Building Energy Innovation in Philadelphia, PA. During his 28 years at UTRC, Dr. Wagner has received nine patents for his work in the fields of energy systems, heat transfer and advanced propulsion. He also worked for 20 years as an adjunct associate professor of mechanical engineering at Rensselaer Polytechnic University at Hartford.