Tristan Grimbert leads EDF Renewables’ activities throughout North America overseeing three primary business lines: Grid-Scale Power, Asset Optimization, and Distributed Solutions. With 16 gigawatts (GW) of renewable projects developed, 11 GW of projects under service contracts, and 35 years of experience, the company is dedicated in its mission to deliver renewable solutions to lead the transition to a sustainable energy future, through the development, generation, operations and maintenance of utility, commercial, and distributed generation renewable energy projects.
His tenure began in 2004 as President and Chief Operating Officer. He was appointed Chief Executive Officer in July 2008 and later that same year was named CEO of both the Canada and Mexico subsidiaries, leading the expansion into both countries from the North American headquarters in San Diego, California. Under Mr. Grimbert’s leadership, North American operations have experienced significant growth, emerging as one of the most respected and successful renewable energy companies in the industry.
Mr. Grimbert has been instrumental in the growth of the company; overseeing a fourteen-fold increase in revenues since 2004. The U.S. portfolio consists of 13 GW of developed projects. The company launched project development in Canada in 2007, and today, EDF Renewables Canada boasts 1.9 GW of wind and solar in development or operation. Mexico development activities commenced in 2010, which now has over 1 GW of wind and solar capacity in development or operation. In addition, EDF Renewables acquired Own Energy, groSolar and Powerflex, and made strategic investments in Nuuve and Entersolar. In 2018, EDF Renewables North America and Shell New Energies US formed a joint-venture company – Atlantic Shores Offshore Wind, LLC – to develop a lease area located off the coast of New Jersey.
Mr. Grimbert is a board member of EDF Inc., the holding company encompassing all other EDF entities in North America. He serves on the board of directors of Atlantic Shores Offshore Wind and also served as the 2017-2018 Chairman of the board of directors for the American Wind Energy Association (AWEA).
Mr. Grimbert's career began in sales and international consultancy. He is a graduate of Institut National Agronomique Paris Grignon and holds a management degree from Insead. He spent seven years prior to EDF Renewables as President and CEO of Mensi SA, a wholly-owned subsidiary of EDF, and later with Trimble Navigation Limited.
Sandi Briner leads the Corporate Communication efforts for EDF Renewables North America.
In this role, she directs the planning, development and execution of EDF Renewables North American internal and external communication strategies including business development marketing, media relations and public affairs activities.
Prior to joining the company in November 2007, she worked in the financial sector managing the sales & marketing efforts for the retail division of large regional bank in the Midwest. Sandi holds a Master’s degree from Miami University (Ohio) and Bachelor of Business Administration from Ohio University.
Raphael provides leadership for the Distributed Solutions business unit of EDF Renewables North America, supervises the activities of Sales of Structured Assets and works with the President & Chief Executive Officer to craft and implement the Strategy of EDF Renewables.
Raphael has responsibility over the teams and legal entities conducting activities at the distribution level. In his strategy role, he has a focus on identifying and supporting analysis on growth opportunities and risks of EDF Renewables businesses in North America. He is also in charge of the portfolio strategy for EDF Renewables through divestitures, supervising the asset marketing and the actual execution of the transactions.
Prior to transferring to the North American headquarters in 2011, Raphael worked for EDF Renouvelables in Paris as Deputy Executive Advisor. Earlier in his career, Raphael was a strategy consultant at McKinsey & Company where he primarily focused on the energy and heavy industry sectors. Raphael holds Masters in Management from HEC Paris business school and CEMS (Community of European Management Schools).
Mark is the Vice President of Technical Services in San Diego, California. He began his career in 1992 in GE as a Field Engineer working on gas turbine installation and commissioning. Those roles were followed by assignments in 1996 as an engineer in Accessory Systems Engineering and later as a Black Belt.
Mark first joined GE Renewable Energy in 2002 in the reliability engineering function where he was responsible for RCA Programs and continuous improvement of the Wind Fleet. In 2004 the role expanded into leading Global Fleet Support Engineering, combining the strengths of a globally diverse workforce from China, Europe and the US. In 2007, he led the Onshore Systems Engineering and played a key role in the launching for the Mark Vie, 1.6-82, and the 1.6-100. Mark was the Senior General Manager for Onshore Wind from 2011 to 2015. Mark lead the Global Hydro Engineering organization based in Grenoble France from 2015 to 2018.
He received his bachelor's degree in Mechanical Engineering from North Carolina State University and his MBA from the University of South Carolina.
Kristin Machacek Leary leads the human resources team responsible for developing and implementing innovative human capital solutions to enable greater business results, career development, and employee engagement. She has over 25 years of progressive leadership and human resources experience focusing on transformation and high performance. Ms. Leary has worked extensively across the globe with leaders and employees at all levels to transform and create high-performing cultures with highly engaged employees.
Before joining EDF Renewables, she served as the Chief Human Resources Officer in public and private organizations – Bullhorn, Hitachi Vantara, Forcepoint, and Alphatec Spine; Ms. Leary also held global human resources leadership roles at Quintiles, Hewlett-Packard, and Boston Scientific.
Ms. Leary, a native of Minnesota, holds a Bachelor of Arts in Organizational Communications and English from Concordia College in Moorhead, Minnesota.
Robert F. Miller serves as Executive Vice President, Legal/General Counsel & Corporate Secretary of EDF Renewables. Mr. Miller brings over 24 years of legal experience with a special emphasis in construction and project finance for energy projects. His legal experience includes work on global projects ranging from 200 MW to 1200 MW.
Prior to joining EDF Renewables, Mr. Miller served as Vice President, General Counsel & Corporate Secretary of NextLight Renewable Power, LLC. During his tenure the company secured 570 MW under PPAs and over 3,487 MW in early development. He guided the company's legal efforts to establish site control of numerous project sites throughout the Southwest including, the first long-term lease for a solar project with the Fort Mojave Indian Tribe and the first large-scale solar energy project on U.S. public lands in Nevada.
Mr. Miller also served as Vice President & General Counsel to Altra Biofuels, Inc., and earlier served as Associate General Counsel to the Engineering & Construction Group and Global Procurement for the Union Oil Company of California (Unocal), prior to its acquisition by Chevron.
Mr. Miller, a member of the California, Virginia, and the District of Columbia Bars, earned a B.A. from Claremont Men's College, a M.S. from the University of Southern California, and holds a J.D. from the University of the Pacific, McGeorge School of Law, where he was a recipient of the National Contract Management Scholarship.
Gerardo Pérez Guerra joined EDF Renewables México in November 2014 as Vice President & General Manager, reporting to Tristan Grimbert, President and Chief Executive Officer.
Gerardo’s over 25 years’ experience in the energy sector includes 23 years with Siemens México. For Siemens he held the role of Business Director for the Mesoamerican Energy Market for 13 years. In that role, Gerardo was responsible for sales strategy, negotiation and profit of sales for five divisions and a sales volume of 1.5 Billion USD annually.
During this past year, as Acciona’s Director of Windpower for México and Central America, Gerardo is proud to have led the charge to the signing of a nearly 300MW project in North México and closing an agreement with Actis for the design, engineering and construction of a 50MW wind project in Oaxaca.
Gerardo’s overall wind business development expertise and proficiency in relationship management with industrial sector companies, EPC's, fund investment companies, off takers, developers and government entities, is sure to lead to success as he assumes responsibility for the overall operation and development of EDF EN México’s renewable energy project portfolio and daily operation of the organization.
Ryan Pfaff leads EDF Renewables' Grid-Scale Power activities in North America, across multiple technologies, including solar, on- and offshore wind, and energy storage. With 25 years of international renewable energy and finance experience, he has played a key role in the commercialization of over 5 GW of renewable generation facilities globally.
Prior to joining EDF Renewables in 2012, Mr. Pfaff served in a variety of roles with the AES Corporation over the course of seven years, most recently VP & Head of Global Wind Development. In this capacity, he played a key role in growing AES’ wind business from 102 MW in the US to over 1.7 GW in construction or operation across six countries, including the US, UK, France, Bulgaria, China and India. Other roles with AES included, VP – North America Business Development, Managing Director - Renewable Generation, and serving on AES’ Global Development Steering Committee.
Mr. Pfaff began his energy career in 1997 with privately-held IPP SeaWest Windpower. As EVP, Business Development and Project Finance, he was a key member of the management team responsible for the turnaround and sale of SeaWest to AES in 2005. Prior to joining the energy industry, Mr. Pfaff worked in commercial banking with Credit Suisse First Boston and Union Bank of California (now MUFG Union Bank).
Mr. Pfaff holds a B.S. in Business Administration, concentration in Finance, from San Diego State University. He serves on both the Board and Executive Committee of the Solar Energy Industries Association.
Remi Raphael is a computer scientist by training and author of a dozen scientific publications on data integration, ontologies and workflow systems.
He spent over a decade developing software in industry and academia prior to shifting his focus to the energy industry and the application of information technology to risk management, quantitative finance, and business strategy. Most recently, he was tasked to accelerate Duke Energy Business Transformation, enabling rapid execution of its Digital Strategy, focusing on Mobility & Digital tools adoption across all business units, and tracking digital maturity and business success metrics.
Prior to that, he held various positions in Risk Management at Duke Energy leading its international renewable energy assets in Latin America and at Sempra Energy as the joined Risk Manager for SoCal Gas and San Diego Gas & Electric.
Remi earned a bachelor’s degree in Applied Mathematics, and a Master of Computer Science from Claude Bernard University in Lyon-France, He holds a PhD in Computer Science from National Institute of Applied Sciences Lyon, France (INSA de Lyon) and an MBA focusing on Finance from University of California, San Diego.
Luis Silva is Chief Financial Officer for EDF Renewables joining the company in late 2013. In this position he is responsible to develop and implement the financial strategy for EDF Renewables as well as oversee the day-to-day operations of the corporate finance teams throughout North America. He advises and evaluates the financial plans and economic modeling for the divisional leaders and has oversight to all fiscal and fiduciary responsibilities for the organization, in conjunction with the EDF Renouvelables’ (EDF EN) corporate finance department.
Mr. Silva brings nine years of experience working within the EDF EN group, most recently as CFO of Polat Enerji – EDF EN’s Turkish subsidiary. In this role, he managed all the financial activity of the company while representing EDF EN’s interest and participation in Turkey. He was further responsible for all financial matters of the company, and its portfolio of project companies. During his five year tenure with Polat Enerji, he provided direction to all areas of the financial group including accounting, treasury, financial controllership, and insurance to ensure the effective processes and procedures. In addition, he implemented a significant portfolio of project finance operations that supported the construction of approximately 500 MW of wind energy projects.
Mr. Silva served EDF EN Portugal as Financial Controller from 2005 to 2009 having taken the position of Assistant CFO in 2008. There he oversaw and managed the financial, budgeting and general accounting processes of the Portuguese portfolio.
Prior to joining EDF EN, Mr. Silva worked as a financial auditor in the Assurance and Advisory Business Services group with Ernst&Young in Lisbon, Portugal.
Mr. Silva holds an Economics Degree from Universidade Católica Portuguesa and a post-graduate degree in Financial Instruments, Institutions and Markets from Euronext Lisbon.
Dan Summa serves as the Executive Vice President, Asset Optimization where he is leads the O&M and Asset Management groups. Prior to joining the company in 2011, he worked for Invenergy, LLC and served eight years in the navy as a surface warfare officer (nuclear).
He holds a Bachelor of Science Degree in Ocean Engineering from the United States Naval Academy and an MBA from Kellogg Graduate School of Management at Northwestern University.