Board of Directors


Bob Powell

Bob Powell - Chairman

Mr. Powell has over 25 years of industry experience, he is passionate about changing the industry paradigm by putting customers at the center of the energy universe.  He has customer and technology experience in renewables, cogeneration technologies, as well as efficiency measures. His experiences include being the CEO of a solar developer, an innovator in financing energy projects, the CFO of a large utility, the North America President of the largest worldwide renewable company and a Partner at Andersen and PWC’s energy consulting practices.


Marc Van Den Berg

Marc Van Den Berg - Member

Marc is a Part­ner at DBL Part­ners. Prior to DBL Part­ners, Marc was a Gen­eral Part­ner at Tech­nol­ogy Part­ners, since join­ing the firm in 2012. Marc’s ven­ture invest­ing career began early last decade where he spent 6 years as a Man­ag­ing Direc­tor at Van­tage­Point Cap­i­tal also focused in energy and advanced tech­nol­ogy invest­ments.

Dur­ing Marc’s 10 years in ven­ture invest­ing he has backed numer­ous suc­cess­ful com­pa­nies in the mate­r­ial sci­ence and energy effi­ciency land­scape such as Bridgelux, Amprius, iWatt and Kaiam Inc.

Prior to his ven­ture cap­i­tal career Marc spent 25 years in both ven­ture backed star­tups and multi-national pub­lic com­pa­nies here in Sil­i­con Val­ley and abroad.

Marc is a grad­u­ate of Santa Clara Uni­ver­sity with a degree in Elec­tri­cal Engi­neer­ing with an empha­sis on high energy physics. Marc is active at Santa Clara; serv­ing on the board of the Busi­ness School’s accred­ited Cen­ter of inno­va­tion and Entre­pre­neur­ship. Marc was also recently selected to be an Exec­u­tive Direc­tor of Santa Clara’s Engi­neer­ing school after serv­ing for many years on the school’s Indus­try Advi­sory Board.


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Tim Hysell - CEO

For seven years, ZincFive co-founder Tim Hysell has expertly guided the creation and deployment of the world’s first nickel-zinc rechargeable battery technology. He founded and chaired PSI Acquisitions and Millennium Power Solutions--where the UPStealth® was invented--and ZincFive, which establishes nickel-zinc as only the fifth rechargeable battery to scale across the world.

Mr. Hysell has over three decades of entrepreneurial success in founding, owning and directing profitable business operations in renewable energy, banking, manufacturing and medical devices. His companies partnered with global giants such as Siemens, Phillips and Hewlett-Packard. He excels at corporate transaction negotiations, fundraising, merger and acquisitions, IPO preparation, market share growth and board leadership. Prior to owning his own businesses, Mr. Hysell worked for General Electric, Hewlett-Packard and Providence Health Systems. 

Mr. Hysell is co-founder and board member of Pacific West Bank in Oregon and a former youth football, basketball and baseball coach.