The power to succeed with hydro.

Our mission, quite simply, is to seize the overlooked opportunity to acquire and modernize hydroelectric facilities and develop power at unpowered dams. And by doing so, demonstrate the value of renewable hydropower and reduce our nation’s reliance on harmful carbon-based energy. It’s a mission we feel strongly about and are well equipped to achieve. Cube Hydro, established in January 2015, is building a portfolio of hydroelectric assets through direct investment in and acquisition of existing assets and the development of new hydroelectric generation facilities that provide attractive risk-adjusted returns.

Our Capabilities


Putting our energy and expertise to work.

Our leadership team is comprised of experts in all aspects of the hydropower industry, including manufacturing, financing, power purchase agreements, energy technology, markets, operations and regulations. We have extensive experience working with regulatory agencies and have established close relationships in many sectors of the energy industry. Together we focus on improving hydropower efficiency and adding capacity for existing hydropower dams, and building hydroelectric capabilities to non-powered dams.

Discover our depth of experience.

John R Collins

John R. CollinsPresident

John has 30-years’ experience in the energy industry holding various senior leadership positions. Prior to joining Cube Hydro and its predecessor, Enduring Hydro in 2011, John spent over 22 years with Constellation Energy Group, Inc. and Baltimore Gas and Electric Company where he retired as Senior Vice President of Integration. As SVP, he oversaw the sale, closing and integration of a 49.99% ownership interest in Constellation Nuclear Energy to EDF, and the sale of Constellation Energy’s 50% ownership in Unistar Nuclear Energy to EDF. From May 2007 to October 2008, John served as the Constellation’s Chief Financial Officer where he led all financial activities of the company. Previously he served as the Constellation’s Chief Risk Officer and was a founding member of the company’s merchant energy business, Constellation Commodities Group, where he served as the Chief Financial Officer from 1997 through 2011.

John has an MBA from the University of Pittsburgh’s Katz School of Business and a BS in Business Administration from the University of Delaware. He is an inductee in the University of Delaware’s Wall of Fame. John currently serves on the Board of Advisors to the University of Delaware’s Lerner College of Business and the Executive Advisory Board of Special Olympics of Maryland. He previously served as a board member and Chairman of the Board of Managers of Constellation Energy Partners, and was a founding member, and Chairman of the Board of the Committee of Chief Risk Officers.

Dr. Kristina M. Johnson

Dr. Kristina M. JohnsonFounder

Prior to co-founding Cube Hydro, Dr. Johnson served as Under Secretary of Energy at the U.S. Department of Energy. As Under Secretary, she was responsible for unifying and managing a broad $10.5 billion Energy and Environment portfolio, including an additional $37 billion in energy and environment investments from the American Recovery and Reinvestment Act (ARRA) of 2009.

Previously, she was Provost and Senior Vice President of Academic Affairs at The Johns Hopkins University from 2007 to 2009, Dean of the Pratt School of Engineering at Duke University from 1999 to 2007 and Professor of Electrical and Computer Engineering at the University of Colorado at Boulder. Kristina is a Member of the Board of Directors of AES Corporation, Cisco Systems, Boston Scientific and GE’s Ecomagination.

A Fulbright Faculty Scholar in the Department of Electrical Engineering at the University of Edinburgh, Scotland and a NATO Post-Doctoral Fellow at Trinity College, Dublin, Dr. Johnson received her B.S., M.S. and Ph.D. degrees in electrical engineering from Stanford University and has honorary degrees from Trinity College, Dublin, Tufts University, McGill University and the University of Alabama at Huntsville. She is a fellow of the OSA, IEEE, SPIE, AAAS and recipient of the Lifetime Achievement Award from the Society of Women Engineers. She was awarded the Dennis Gabor Award for Creativity in Modern Optics, the John Fritz Medal, considered the highest award given in the engineering profession, and has been inducted into the US Inventors Hall of Fame, the National Academy of Inventors, the Colorado Women’s Hall of Fame, the Women in Information Technology Hall of Fame and the Small Business Technology Council Hall of Fame (2010). She holds 119 U.S and International patents and has published 142 refereed publications.


Ginger E. LewManaging Director

Ginger provides regulatory, financial and operational expertise to the company. From 2009 to 2011, she served as Senior Counselor to the White House National Economic Council. She provided economic policy advice on a broad range of matters, including innovation, commercialization, small business, capital access and formation, and entrepreneurship policies. Ginger gained regulatory experience as the General Counsel for the U.S. Department of Commerce, for which she was unanimously confirmed by the U.S. Senate. Under the Clinton Administration, Ginger was the Deputy Administrator and Chief Operating Officer of the U.S. Small Business Administration and had oversight responsibility for a $42 billion loan portfolio. Earlier in her career, she was the Chief Counsel for the U.S. Department of Energy for the western United States.

Ginger is the former CEO and partner to two venture capital funds located in the Washington, DC area. She was chair and board member of an European based investment fund. Ginger also served on the NASDAQ Listing and Hearing Review Council for 10 years.


Eli Hopson Vice President, Legal, Regulatory & Policy

Prior to joining Cube Hydro, Eli was an associate in the Finance and Environmental departments at Latham & Watkins, LLP. Eli focused his practice at Latham on energy and environmental regulation of the energy industry. Eli provided counsel on a variety of matters relating to energy projects, including several cleantech portfolio IPOs. Before joining Latham, Eli held positions in energy policy at the Georgetown Climate Center, the Mountain Association for Community Economic Development (MACED), the Union of Concerned Scientists, the U.S. House of Representatives’ Committee on Science, and as a Presidential Management Fellow at the U.S. Department of Energy.

Eli has a Masters of Engineering and Bachelors of Science in Environmental Engineering from M.I.T., and a J.D. from Georgetown Law.

Neal Simmons

Neal Simmons Vice President, R&D and Optimization

Prior to joining Cube Hydro, Neal spent over 10 years as a professor of mechanical engineering at Duke University. He played a key role in the formation of Duke’s Energy Engineering program. Neal remains committed to the importance of energy education and continues to teach courses on renewable energy technologies, modern power systems, hydroelectric generation, and engineering innovation at Duke. Neal brings to Cube Hydro expertise in mechanical systems, automation, control, and operation of hydroelectric facilities. He has overseen the rehabilitation, automation and management of several damaged and underperforming hydroelectric projects.

Neal has started two successful engineering companies and has been granted over 20 US patents, which are licensed worldwide. He has over 75 peer reviewed publications and conference proceedings. Neal graduated from Bucknell University with a degree in Mechanical Engineering and from Duke University with a Ph.D. in Mechanical Engineering and Materials Science.

Andrew Longenecker

Andrew LongeneckerVice President, Business Development & Asset Optimization

Andrew Longenecker has experience in energy development and project finance for energy infrastructure. Before joining Cube Hydro, Andrew was a Principal and Co-Founder of PSL Energy, an investment group focused on renewable energy assets. He also previously worked for Khosla Ventures, an early stage cleantech venture capital firm, and as a Management Consultant in McKinsey & Company’s Energy Practice, where he focused on energy infrastructure and technology. Andrew attained a joint MBA / MS degree at Stanford Graduate School of Business, with a focus on Energy Resources, as well as BS from Duke University.

Mark Gross

Mark GrossVice President, Operations

Mark Gross began his career as a Mechanical Engineer with the Aluminum Company of America (ALCOA) in 1988 after earning his BSME from North Carolina State University. While at ALCOA, Mark advanced his knowledge of industrial system and process controls and later moved into project engineering and project management. During this time, he held various roles at the Badin North Carolina Aluminum Smelter and the division level. In 2002, Mark took over the management of ALCOA’s 215 MW Yadkin hydroelectric project in central North Carolina. In 2011, Mark became the Vice President of ALCOA’s domestic hydro operations, which included the Yadkin Project, the 360 MW Tapoco hydro project (later sold to Brookfield Renewables) and the combined control center in Tennessee. In February 2017, ALCOA completed the sale of the Yadkin Project to Cube Hydro Partners. At that time, Mark joined Cube Hydro as the Vice President of Operations, where he is focused on applying his knowledge of operations excellence across the portfolio.

José Zayas

José ZayasVice President, Strategic Partnerships & Initiatives

José Zayas has over 20 years of experience in the renewable energy sector. Prior to joining Cube Hydro, he served as Director of the Wind and Water Power Technologies Office at the U.S. Department of Energy (USDOE). In this role José led efforts to improve performance, lower costs, and accelerate deployment of wind and water power technologies. Notably, José led the development of the USDOE Hydropower Vision report, an industry-wide vision for hydropower, and launched USDOE’s HydroNEXT strategy to drive new investments in hydropower and pumped storage.

Prior to joining USDOE in 2011, José spent fifteen years at Sandia National Laboratories, a Federally Funded Research and Development Center focused on addressing national security issues. While at Sandia, José served in several leadership positions, including serving as the Senior Manager for the Renewable Energy division. José holds a Bachelor of Science in Mechanical Engineering from the University of New Mexico and a Master of Science in Mechanical and Aeronautical Engineering from the University of California at Davis.

Aina Jumabaeva

Aina JumabaevaCorporate Controller

Aina Jumabaeva’s experience in finance and business spans over 20 years, working with both public and private companies, focusing on M&A, business integrations, restructuring and divestitures, and finance operations.  Prior to joining Cube Hydro Partners in early 2017, Aina served as Corporate Controller at TerraForm Global, Inc., an SEC registrant and a globally diversified owner of 900 MW clean power generation assets in attractive, high-growth emerging markets.  Prior to TerraForm Global, Aina served as Senior Director – Asset Management at SunEdison, Inc., responsible for managing a 300 MW portfolio of solar operating assets and serving on behalf of project owners. In her capacity as Latin America’s executive asset manager, Aina also guided integration of over 600 MW in M&A portfolios: Renova wind and hydro assets in Brazil, Latin American Power (LAP) hydro assets in Peru, and Globeleq Mesoamerica Energy (GME) wind and solar assets in Central America.

Aina’s involvement with the SunEdison and TerraForm group of companies was preceded by SunEdison’s 2014 acquisition of interest in Silver Ridge Power, Inc., a global 500 MW solar joint venture between The AES Corporation and Riverstone private equity group. Between 2006 and 2014, Aina held various positions of increasing responsibility at AES US corporate and London, UK locations and transitioned to the Silver Ridge affiliate in 2011. Aina was Silver Ridge’s Corporate Controller immediately prior to SunEdison’s 2014 acquisition of interest in Silver Ridge.

Aina holds a Master’s in Business Administration and a Master’s in Economics and Finance from State University of New York at Binghamton. Aina completed her Bachelor’s in Business Administration with the American University in Central Asia.

Jessica D'Oorazio

Jessica D’OrazioDirector, Human Resources

Jessica has over 10 years of experience in operations, administration, strategic planning and human resources management. Prior to joining Cube Hydro Partners, Jessica served as Director of Operations and Administration for MIP Global, Inc., an investment firm. At MIP Global, Inc., Jessica managed the company’s administrative, operations and human resources strategies, and compliance practices.

Prior to MIP Global, Inc. Jessica was the Operations Manager at Global Event Partners. Jessica managed domestic and international programs for prestigious clients such as the White House and the Smithsonian Institution.

Jessica is a graduate of Flagler College in St. Augustine, FL, where she received her Bachelors of Arts degree in Communications and Public Relations.

Rick Cunningham

Rick CunninghamDirector, Marketing and Sales

Rick has over 25 years of experience in sales and marketing leadership. Prior to joining Cube Hydro, Rick held Senior Vice President and Vice President sales and marketing leadership positions with American Traffic Solutions, Windstream/PAETEC and AT&T. With PAETEC Rick was responsible for over 18,000 customers and $400 million in annual revenue. Rick’s knowledge and leadership of specific vertical industries helped three different organizations grow quickly and led to two entities merging with or be acquired by larger enterprises.

Rick holds a Bachelor of Arts degree in Marketing from Michigan State University, and an Information Technology Certification from Massachusetts Institute of Technology (MIT).

David Fox

David FoxDirector, Environmental & Dam Safety Programs

David has expertise in environmental engineering and assessment with a focus on energy infrastructure projects. Prior to joining Cube Hydro, David spent five years as a geologist with URS Corporation where he worked with a range of public and private clients to address soil and groundwater contamination. He also worked at Anka Funds, a private equity fund focused on investing in environmentally sustainable startup businesses. David studied geology and economics at Hamilton College, and received his MBA with concentrations in Finance and Sustainable Enterprise from the University of North Carolina’s Kenan-Flagler Business School.

Join our team.

Cube Hydro is a company that invests in, develops, and modernizes hydroelectric facilities, and provides consulting services on project management, regulation, and development of hydroelectric power and other clean energy resources. We are currently looking for a new team member.

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