Meet our Team

Our core team have worked for over 20 years to slow climate change and repair our climate—diligently and with passion. 

Accomplishments

  • Co-founding OptiSolar, a company that built the world’s first, fully-automated solar panel factory, created a breakthrough in solar panel cost per watt, and pioneered utility-scale solar.

  • Leading the effort to pass legislation that created the million solar rooftop programs in California

  • Managing a $30 B energy investment fund in Abu Dhabi

  • Marv Keshner

    Marv is an electrical engineer with SB, SM and ScD from MIT. During his 26 years at HP, he and his teams created billions of dollars of products in computer storage.

    Later, he became CTO of HP’s personal computer business.  In 2005, Marv left HP and co-founded OptiSolar, which raised $400 M, built the first completely automated solar panel factory, and pioneered low cost, utility-scale solar farms in 2007 – 2009. With the collapse of the financial markets in 2009, OptiSolar was sold to First Solar for $400 M.  First Solar built OptiSolar’s solar farm projects, including the Topaz 579 MW solar farm near San Luis Obispo. 

    Marv has extensive hands-on experience building electronics and creating software for measurements and for controlling complex systems.

  • Erik Vaaler

    Erik is a mechanical engineer and machine designer with SB from Berkeley, and SM and ScD from MIT.  He was also a co-founder of OptiSolar.

    In less than a year, Marv and Erik managed the design and construction of OptiSolar’s fully-automated, $20 M solar panel production line—the first in the world.

    Erik has designed all kinds of machines, large and small, ranging from machines that produce wind chimes, deposit thin-film silicon, and produce the world’s best SiC fibers.  Erik is also a machinist, mechanic, welder, and electrician. 

    He shares ownership of two garage machine shops (Redwood City, CA and Oakland, CA), where he has done prototyping work for Hewlett-Packard, Applied Materials, iRobot, UC Berkeley, Stanford, the U.S. Army, and the CIA. 

    Marv and Erik will lead our technology transfer activities.

  • Elliot Hoffman

    Elliot is our lead for partnerships with the Calif Energy Commission, utilities, developers, government agencies, and communities.

    He was the founder of Just Deserts, which he built into one of San Francisco’s premier food companies.  He was an early business leader successfully advocating for business support for California’s groundbreaking solar and GHG emissions policies in 2005-2006 (CSI and AB32).

    He’s worked with California’s IOUs in energy efficiency and business & community sustainability. 

  • Carl Sheldon

    Carl is also our lead for partnership, both in the U.S. and in Europe and North Africa—especially with large power generation developers and with CO2 sequestration sites.

    He is a managing partner at Station X Partners. Carl is well connected with current carbon sequestration efforts, and the need for certification.  Prior to Bellnote, Carl was the chief executive officer of the Abu Dhabi National Energy Company (TAQA), with over $30 billion in assets globally, and extensive investments in oil & gas sites, some of which can now be used for sequestration.

    Before that, Carl was managing partner of Allen & Overy LLP’s Frankfurt and New York offices during his 25 years with the firm. He is an avid startup technology investor with a particular penchant for seeing the world the way it could be.

    Carl received his B.A. from Cambridge University and is a solicitor of the Supreme Court of England & Wales, as well as a licensed attorney in the State of New York.  

    Carl will lead our outreach to sequestration sites, and to the processes for certifying those sites.

Advisory team:

We have a group of advisors and are in the process of establishing a formal Advisory Committee