Radial Power Management Team

John has held senior positions in NRG Energy, Sunnova Energy, and TXU/Luminant. As SVP of Operations at Sunnova Energy John was part of the executive team and was responsible for sales, channel partner development, product development, supply chain, and operations. During his 13 years at NRG Energy, he held senior positions as SVP of Supply Chain, COO of its nuclear development joint venture with Toshiba, and SVP of NRG Solar and a member of its 5-person executive team that successfully IPO’d NRG Yield. He led NRG’s commercial distributed solar business for large national customers.

His roles in NRG were commercially focused in supporting or leading project development and operations across multiple generation technologies. Prior to NRG John was VP of Development at TXU in a leadership role in restructuring the company’s corporate functions and its $10B development program, leading to the largest LBO at that time in the US. John spent the initial 10 years of his career at Chevron Corporation in various roles in shipping, trading, and logistics.

John holds a B.S. from United States Merchant Marine Academy and an M.B.A. from the Cullen School of Business at University of Houston.

Prior to joining Radial, she served as Senior Vice President, Service and Energy Operations at Sunnova Energy and was responsible for national operation and maintenance functions including central command center. Additionally, she developed the virtual power plant program, launched the C&I segment, and was head of international expansion to Europe. Ms. Graham previously served in various service operations roles at energy, storage and manufacturing companies including LBC Tank Terminals, HCL Technologies, Therma Tru, Capgemini Energy and Gexa Energy.

Ms. Graham received her Bachelor of Science in Business Administration and Management from Liberty University.

Previously led financing and development efforts for Starmex Energy a private equity sponsored development company focused on Mexico and the United States. Hector served as V.P. of Finance and Business Development in Prana Power (Mexican IPP) in which he was responsible for the acquisition and financing of a 108MW of solar PV plant and the acquisition and development of additional 200MW. Additionally, he was responsible for the formation of a Distributed Generation business which deployed US$10MM+ in onsite C&I systems in Mexico.

Prior to Prana, he was Senior Associate for Artha Capital where he participated in the deployment of the first energy and infrastructure fund raised by Artha. Previously, he participated in Strategy and Operations at Schlumberger and Equity research at Credit Suisse.

Héctor holds a Bachelor’s degree in Economics with concentration in finance from ITAM in Mexico City where he graduated top 5% of his class.

Gerritt was one of the Founders and CFO/Treasurer of Sunnova International, a retail solar company now trading on the New York Stock Exchange (NOVA). Prior to this, he served as CFO of Tessera Solar, a start-up company developing and financing power projects using the Stirling energy technology. Mr. Ewing also served as Assistant Treasurer at TXU Energy in Dallas, TX working on general corporate finance matters for the regulated and unregulated businesses. Prior to this, Gerritt served as Vice President of Entergy Corporation in the unregulated subsidiary developing and financing renewable energy Projects. In this role he served 4 years in Entergy’s London Office and closed financing on about $2.0 billion in project financings. Prior to these roles, Mr. Ewing worked for 15 years in corporate banking in the energy sector for Security Pacific (now BofA) and Marine Midland Bank (now Hong Kong Shanghai Bank).

Mr. Ewing holds a B.A. Degree in Economics from Lafayette College in Easton, PA and a Masters Degree in Financial Management from the Pace Graduate School in New York, New York.