Board of Directors

Mr. Berger founded Sunnova in 2012 and has since then served as Chief Executive Officer, President and Chairman of the Board. With more than two decades of experience in the electric power industry, Mr. Berger is an energy entrepreneur who has always supported free market competition, consumer choice and the advancement of energy technology to power energy independence. Before Sunnova, Mr. Berger served as Founder and Chief Executive Officer at SunCap Financial, a residential solar service provider. He also founded Standard Renewable Energy, a provider and installer of renewable energy and energy-efficient products and services. Mr. Berger received his Masters of Business Administration from Harvard Business School and graduated cum laude from Texas A&M University with a Bachelor of Science degree in civil engineering.

Mr. D’Argenio was appointed to Sunnova’s board in March 2016. Mr. D’Argenio was appointed in connection with his affiliation with Energy Capital Partners, where he is a Partner and a member of the Investment Committee. He is involved in all areas of the firm’s investment activities, with particular emphasis on fossil and renewable power generation and energy related services. Mr. D’Argenio also currently serves on the boards of NESCO Holdings LP, CM Energy, Triton Power Partners LP, and PLH Group, Inc. Prior to realization, Mr. D’Argenio has previously served on the boards of Brayton Point Power, LLC, EquiPower Resources Corp., Odessa Power Holdings, LLC and Red Oak Power Holdings, LLC. Prior to joining ECP in 2010, Mr. D’Argenio spent seven years at First Reserve Corporation, an international energy-focused private equity firm based in Greenwich, Connecticut. His responsibilities at First Reserve included a leadership role in power, financial services and coal related investments. Prior to that, Mr. D’Argenio worked in the Energy & Utilities Investment Banking Group at Deutsche Bank Securities. Mr. D’Argenio began his career in the structured finance group at Sempra Energy Trading. Mr. D’Argenio received his Bachelor of Arts degree in Mathematics and Economics from the University of Pennsylvania in 2000.

Mr. DeNichilo was appointed to Sunnova’s board in March 2016. Mr. DeNichilo was appointed in connection with his affiliation with Energy Capital Partners, where he is a Partner. Mr. DeNichilo has been with the fund since 2008. Mr. DeNichilo serves as a co-head of ECP’s credit platform, and he is a member of the Credit Investment Committee and Credit Operating Committee. Mr. DeNichilo also currently serves on the board of Terra-Gen, LLC. Previously, Mr. DeNichilo served on the boards of PLH Group, Inc., Broad River Holdings, LLC, Empire Gen Holdings, Inc., Brayton Point Power, LLC and EquiPower Resources Corp. Prior to joining ECP, Mr. DeNichilo worked at JP Morgan in the Energy Investment Banking Group. While at JP Morgan, he focused on leveraged finance and mergers and acquisition transactions among independent power producers. Mr. DeNichilo received his Bachelor of Science in Engineering degree in Operations, Research and Financial Engineering from Princeton University.

Mr. Kimmelman was appointed to Sunnova’s board in March 2016. Mr. Kimmelman was appointed in connection with his affiliation with Energy Capital Partners, which he established in April 2005 and where he serves as its Senior Partner. Mr. Kimmelman also currently serves on the boards of Calpine Corporation, US Development Group, LLC, USD Partners, LP, and NESCO Holdings LP. Prior to realization, he served on the board of CE2 Carbon Capital, LLC. He is a member of ECP’s Management Committee and Investment Committee. Prior to founding ECP, Mr. Kimmelman spent 22 years with Goldman Sachs, starting in 1983 in the firm’s Pipeline and Utilities Department within the Investment Banking Division. He was named a General Partner of the firm in 1996 and remained exclusively focused on the energy and utility sectors in the Investment Banking Division until 2002 when he transferred to the firm’s J. Aron commodity group to help form a new business for the firm in becoming an intermediary in electricity trading markets. Mr. Kimmelman was instrumental in developing the Constellation Power Source concept as the initial entry point for Goldman Sachs as a principal into electricity markets. Mr. Kimmelman also played a leadership role at Goldman Sachs in building a principal investing business in power generation and related energy assets. Mr. Kimmelman received his Bachelor of Arts degree in Economics from Stanford University and his M.B.A. from the Wharton School at the University of Pennsylvania.

Mr. Morgan was appointed to Sunnova’s board in October 2015. Mr. Morgan was appointed in connection with his affiliation with Triangle Peak Partners, LP. Mr. Morgan has served as a director of Kinder Morgan, Inc. and its predecessors since 2007. He served in various management roles for the Kinder Morgan companies from 1997 to 2004, including as President of Kinder Morgan, Inc., Kinder Morgan G.P., Inc. and Kinder Morgan Management, LLC from 2001 until 2004. He has been Chairman and Chief Executive Officer of Triangle Peak Partners, LP, a registered investment adviser and fund manager, since 2008. He also has been President of Portcullis Partners, L.P., a private investment partnership, since 2004. Mr. Morgan was a director of Kayne Anderson MLP Investment Company and Kayne Anderson Energy Total Return Fund, Inc. from 2007 until 2008. Mr. Morgan received his M.B.A. from Harvard Business School and his Bachelor of Arts and his Masters of Arts degree from Stanford University.

Mr. Shaper was appointed to Sunnova’s board in October 2015. Since 2013, Mr. Shaper has been CEO of Seis Holdings, LLC, a private investment holding company. Mr. Shaper served in various management roles at Kinder Morgan, Inc. and at certain of its affiliates beginning in 2000 until March 2013, when he retired as President of Kinder Morgan, Inc., Kinder Morgan G.P., Inc., Kinder Morgan Management, LLC and the general partner of El Paso Pipeline Partners, L.P. Mr. Shaper was a director of Kinder Morgan Management, LLC and Kinder Morgan G.P., Inc. from 2003 until March 2013, President of Kinder Morgan, Inc., Kinder Morgan Management, LLC and Kinder Morgan G.P., Inc. from 2005 until March 2013, and a director and President of the general partner of El Paso Pipeline Partners, L.P. from May 2012 until March 2013. Mr. Shaper was CFO of the Kinder Morgan entities from 2000 until 2005. Mr. Shaper remains a director of Kinder Morgan, Inc., a position which he has held (including with its predecessor) since May 2008. Mr. Shaper received his Masters of Business Administration degree from the J.L. Kellogg Graduate School of Management at Northwestern University and his Bachelor of Science degree in Industrial Engineering and a Bachelor of Arts degree in Quantitative Economics from Stanford University. Mr. Shaper is also a trust manager of Weingarten Realty Investors and serves as the chairman of its compensation committee and a member of its audit committee.

Mr. Longstreth was appointed to Sunnova’s board in March 2018. Mr. Longstreth was appointed in connection with his affiliation with Quantum Strategic Partners Ltd. Mr. Longstreth is a Managing Director at Newlight Partners, LP, focusing on the power and energy sectors. Prior to joining Newlight Partners, LP upon its founding in 2018, he was a Managing Director in the Strategic Investment Group at Soros Fund Management LLC, also focusing on power and energy. Mr. Longstreth joined Soros Fund Management in 2007. Mr. Longstreth also currently serves on the boards of VPI Holding Limited and GRL Holdings Pty Ltd. Prior to that, Mr. Longstreth was an Analyst in Investment Banking at Bear Stearns & Co. Mr. Longstreth received his Bachelor of Science in Foreign Service in International Economics from Georgetown University in 2004.

Mr. Steimer was appointed to Sunnova’s board in December 2018. Mr. Steimer was appointed in connection with his affiliation with Energy Capital Partners, where he is a Vice President. He is involved in all areas of the firm’s investment activities, with particular emphasis on fossil and renewable power generation. Prior to joining ECP in 2015, Mr. Steimer worked in the Power & Utilities Investment Banking Group at Bank of America Merrill Lynch from April 2013 to March 2015. Mr. Steimer received his Bachelor of Science degree in Finance and Accounting from Ithaca College.

Ms. Andrew was appointed to Sunnova’s board in October 2019.  Ms. Andrew served as U.S. Ambassador to Costa Rica under President Obama and has a career spanning over 20 years as an energy and environmental attorney, Ms. Andrew is a social entrepreneur who has invested, advised and advocated for clean energy and sustainable development. Recent projects include co-founding TerViva, LLC, an agro-technology company developing environmentally sustainable crops for food and fuel; launching the Climate Forum with the NewDEAL, a rising stars network of exceptional state and local elected officials; investing and advising LNG, LLC, a Central American venture to collect and recycle used lubricant oil; and Co-founder of EARTH University's global platform for Leadership and Sustainable Solutions Impact. In addition, Ms. Andrew serves on the Board of Directors of Ad Astra Rocket Company (Chair, Audit Committee) in Houston, Texas, on the Natural Resources Defense Council (Chair, Governance and Nominating Committee), and on the Telluride Foundation (Executive Committee) in Telluride, Colorado. Ms. Andrew holds a Bachelor of Arts degree from Georgetown University and graduated cum laude from Indiana University McKinney School of Law with a Juris Doctorate.