Alexander “Hap” Ellis III General Partner

Alexander “Hap” Ellis III

Path to RockPort

Hap’s interest in energy took root during his first job out of college, when he went to work for US Senator Edward Brooke (R-MA) as a Legislative Assistant. In the ensuing four years, Middle East events changed forever both the politics and the economics of the global energy sector. Once in the private sector he formed a boutique insurance brokerage group to work with independent power companies. He was recruited away from the energy space by Knoll International to help re-invigorate this now well known furniture name. After the sale of Knoll to Westinghouse, he was recruited to Kenetech Corporation, the leading wind development and turbine manufacturer at the time, to help globally position this venture-backed company in anticipation of an IPO. After Kenetech and prior to joining RockPort, Hap and a partner developed, permitted and sold two 500+MW gas-fired power plants in the US, among other entrepreneurial ventures. Hap is a graduate of Colorado College with a BA in Political Science and earned an MBA from the Yale School of Management.

Other Passions & Pursuits

  • Member of the Board, George Bush Presidential Library Foundation
  • Member of the Board, Cornell Lab of Ornithology
  • Massachusetts Audubon Society, council member and member of the finance and administration committee.


Corporate Boards serving on

Came aboard RockPort

Yale School of Management
Colorado College


While Hap gets a kick out of the fact that many of RockPort’s companies are contributing to improving the environment, his main motivation is much simpler: "I just want to do my part to help the RockPort team deliver superior results to our LPs. It's a challenge I welcome and it drives me to hit every airport concourse with a smile (well, at least with resolve)."