Teresa W. Zhang

  • Engineer, entrepreneur, environmentalist

    I'm a mechanical engineer and clean energy enthusiast living in San Francisco. I bike in heels most days of the week.

  • Background


    Folsom Labs

    We help solar professionals design, optimize, and deploy residential and commercial solar projects with ease using HelioScope, the new standard in solar design software.


    SunEdison, Leidos, Applied Materials, UC Berkeley, MIT

    Led a global engineering innovations program, advised financiers on solar investments worth $5B, taught grad and undergrad engineering classes, and built walking robots.


    B.S. MIT, M.S. and Ph.D. UC Berkeley

    I spent a decade learning, designing, and building while pursuing three degrees in mechanical engineering.

    Early on

    Upstate New York & Beijing

    I grew up between two cultures, which helped me understand the connection between our consumption in the wealthy west and environmental impacts experienced globally. It's what drives me every day.







  • Areas of Expertise

    Solar Resource and Energy Performance Modeling

    I testified as an expert witness on solar resource and photovoltaic energy production modeling for GCL vs. PsomasFMG. I previously performed technical due diligence, including solar resource, energy production, and/or inter-annual variability analysis, on nearly 2.0 GW of solar asset transactions.

    Bifacial Photovoltaics

    With partners in Solar Modules, I spearheaded the deployment of bifacial, or double sided, module technologies in SunEdison solar power projects. I was invited by Sandia National Laboratory and TÜV Rheinland to chair their first workshop session on bifacial performance modeling.

    Life Cycle Assessment

    My PhD dissertation is on life cycle analysis of amorphous silicon photovoltaic systems using hybrid economic input-output (EIO) methods. I created life cycle analysis tools for semiconductor manufacturers and developed EIO-based methods of quantifying the impacts of energy-labor substitutions.





  • Speaking Engagements

    U.S. State Department TechWomen Delegation to Egypt

    March 2018 - Cairo

    Impact This:

    Gender Equality in Sustainability & Finance

    October 2017 - San Francisco

    The Cleanweb Initiative: The State of Solar Software

    July 2017 - San Francisco

    Photovoltaic Performance Modeling Collaborative Workshop (PVPMC)

    May 2017 - Albuquerque

    Solar Energy Industry Association

    Women's Empowerment Summit

    October 2016 - San Francisco

    10th Anniversary

    Energy Discuss San Francisco with Jigar Shah

    June 2016 - San Francisco

    U.S. State Department

    TechWomen Delegation to Kazakhstan

    March 2016 - Almaty & Astana

    4th PV Performance Modeling Collaborative Workshop

    November 2015 - Cologne

    What's Next in Clean Technology

    July 2015 - Palo Alto

    MIT Club of Northern California Pioneers of Clean Tech

    May 2015 - Palo Alto

    U.S. State Department

    TechWomen Delegation to South Africa

    January 2015 - Johannesburg and Cape Town