The Company brings expertise, ideas, and passion together to expand the use of solar thermal technology to meet energy needs and to facilitate environmental excellence. ergSol’s team members bring a strong combination of scientific, technical, and business skills and experience in the renewable energy and solar thermal markets, along with an objective judgment on issues of strategy, resources and performance standards.


Dr. Monika Weiss


Monika is an environmental pioneer and management consultant with extensive national and international experience in helping people and organizations turn potential to success. She has a strong background in collaborative leadership in cross-cultural, multi-industry environments and public-private consortium. As an experienced project manager and change agent she is committed to developing sustainable organizations. Her skills include:  finding organizational forms to fit the tasks of innovating a new technology; preparing the infrastructure and raising the public awareness for product commercialization; valuing diversity to create synergy.  Monika’s work focus is on sustainable business strategies and renewable technologies, especially in the solar thermal realm. She holds a M.S. in Mathematics and a Ph.D. in Organizational Psychology.

Wolfgang Weiss


Former executive and CTO at various energy and technology companies. Proven expertise in start up, executive and project management, business development, Research & Development, and manufacturing in Cleantech and other advanced technology ventures. 

Prior to founding ergSol, Mr. Weiss was Chief Technology Officer at AE Biofuels (2006 – 2008), where he was instrumental in defining the strategic and technical alternatives for next generation biofuels. He contributed largely to the development and execution of a new strategic pathway in regards to cellulosic ethanol technology and the thermodynamic in fuel processing.

Mr. Weiss held various positions during his employment with Daimler AG (1987 – 2006), spanning from Senior Engineer, Senior Researcher to General Manager. He established and headed the successful Fuel Cell R&D program at Daimler AG for fuel cell cars, was an instrumental member of the California Fuel Cell Partnership, conceived and organized the “Cross Country” – World record drive with a fuel cell car and co-chaired the “California Hydrogen Highway Net” Project initiated by Governor Schwarzenegger (80+ multi-stakeholder, public-private participants, 2004). 

He has in-depth expertise in solar thermal technologies and thermodynamics and holds an advanced Master of Science in Physics (Diplom Physicist) from the University of Stuttgart, Germany.


Advisory Board Members

Jared Blumenfeld

Jared Blumenfeld, is the founder of Advising Impact and the host of Podship Earth. He was appointed by President Obama to be the regional administrator of the US Environmental Protection Agency (2009-2016), he also served as the Director of the San Francisco Department of the Environment, chaired the first United Nations World Environment Day held in the US, and founded the Business Council on Climate Change and Green Cities California. He worked for non-profits including the Natural Resources Defense Council (NRDC) and the International Fund for Animal Welfare (IFAW) where he helped protect millions of acres for wildlife and held corporations accountable. He thru-hiked the Pacific Crest Trail from Mexico to Canada. He is a trusted source for environmental stories and appears frequently in the New York Times, BBC, Economist, Los Angeles Times, NPR and other media outlets.


Werner B. Koldehoff

Mr. Koldehoff – Chemist by education – has worked for companies in the field of International Sales & Marketing as well as Project Management and Strategic Corporate Planning.  He was also shareholder and CEO of a medium-sized group of companies for Thin Film & Fibre Optics and Environmental Technologies.  He established his own business in 2000 as a Management Consultant – mainly in the field of “Renewable Energies” (focus on Solar Energy) as well as “Smart Coatings on Glass."  He was also lecturer for Strategic Corporate Planning and International Project Management at both the “Management Institute” and “Boston Business School” in St. Gallen, Switzerland.  Mr. Koldehoff was for many years Member of Board at the “German Solar Industry Association” (BSW) and Member of the Advisory Board.  He was also Member of the Advisory Council at the “European Solar Thermal Industry Federation” (ESTIF).


Roger Boulton

Roger is a chemical engineer who has been involved in process engineering in winemaking and winery design for more than 40 years. He is a Professor of Enology and Chemical Engineering at the University of California, Davis where he was responsible for the sustainable design features of the world’s first LEED Platinum Winery, in 2010 and which was designed to be energy and water positive and to have zero carbon emission. The Winery will eventually operate on incident solar energy and onsite rainwater capture, making it self-sustainable and independent of the energy and water grids. The ambient cleaning solutions are potassium salt and hydrogen peroxide based, and will be recovered to 90% and reused at least 10 times. The Winery and its passive Jackson Sustainable Winery Building led a revolution in green buildings, solar energy and rainwater capture on the campus.  In 2017, UC Davis was chosen to be the most sustainable university campus in the world in 2017. He works as a consultant to wineries within California, across the US and throughout the world. 


Dr. Alan C. Lloyd

Dr. Lloyd is currently a Senior Research Fellow at the Energy Institute, University of Texas at Austin.

Alan C. Lloyd served as President of the International Council on Clean Transportation (ICCT) from 2006 to 2013. The ICCT has the goal of dramatically improving the environmental performance and efficiency of cars, trucks, buses and transportation systems in order to protect and improve public health, environment and quality of life.

Dr. Lloyd served as Secretary of the California Environmental Protection Agency, being appointed by Gov. Arnold Schwarzenegger in December 2004.  He oversaw a budget of $1.5 billion and 4,500 employees throughout California. As Secretary, Dr. Lloyd led the governor's Climate Action Team (CAT) to develop a plan to implement the governor’s aggressive Executive Order to reduce greenhouse gas emissions in California to 80% of 1990 levels (subsequently introduced as AB 32). The Agency is composed of the following boards, departments and offices: Air Resources Board, Department of Pesticide Regulation, Department of Toxic Substances Control, Integrated Waste Management Board, Office of Environmental Health Hazard Assessment, and the State Water Resources Control Board

Dr. Lloyd served as Chairman of the California Air Resources Board from 1999 to 2004. He was appointed by Gov. Gray Davis in February 1999 and reappointed by Gov. Arnold Schwarzenegger in August 2004 before his appointment as Secretary of the Air Resources Board (ARB). At that time, the ARB consisted of 11 members appointed by the governor with the consent of the Senate. During his tenure CARB passed the first United States regulation to control green house gases from automobiles and light trucks (following the AB 1493 legislation). 

Prior to joining the ARB, Dr. Lloyd was the Executive Director of the Energy and Environmental Engineering Center at the Desert Research Institute at the University and Community College System of Nevada, Reno. Prior to that he was Chief Scientist at the South Coast Air Quality Management District from 1988 to 1996, heading up the newly created Technology Advancement Office.  Dr Lloyd has given numerous presentations internationally, written many articles and has served on several Boards—both national and International.  Dr. Lloyd earned both his B.S. in Chemistry and PH.D. in Gas Kinetics at the University College of Wales, Aberystwyth.