Bill has spent most of his career as a tech CEO. His first company, which he co-founded in high school, provided graphics software for early, text-based personal computers. His second company, Da Vinci Systems, was started out of his college dorm room and grew to serve millions of users across 45 countries. Later, he spent several years as a venture capitalist with Greylock. In 1998, he left the firm to run a portfolio company, iXL, which went public and grew to almost $500 million in revenue. After iXL, he joined Silverpop as CEO. Silverpop grew to nearly $100 million and became a global leader in cloud-based marketing. In 2014, IBM acquired the company and made it the foundation of the IBM Marketing Cloud. Shortly after the acquisition, Bill was promoted to VP Corporate Strategy out of IBM’s world headquarters in New York. Bill’s companies have created thousands of jobs and billions of dollars in value.

For the last few years, Bill has been conducting research for a 2019 book called Freeing Energy. Supported by 150 interviews across the world, the book’s mission is to help non-industry readers understand how we can accelerate the shift to clean energy. The core ideas focus on decentralized (or local) energy, novel business models, and new approaches to ownership and finance. Much of his early research was shared at Bill’s October 2017 TED talk called Accelerating the Shift to Clean Energy.

In 2018, Bill co-founded Solar Inventions. Based at Georgia Tech’s ATDC incubator, the company’s mission is to commercialize a series of scientific breakthroughs for improving silicon photovoltaics.

Bill received a degree in electrical engineering from North Carolina State University and an MBA from Harvard Business School. He holds several patents and has published two books.

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