Built for the Power Demand Ahead

John Clapp is the CEO of Deriva Energy, where he leads a team of over 530 professionals at one of the leading renewable developer/owner/operators in the US. John brings 30 years of expertise in global power, energy transition, and renewables project finance, development, and operation to the Deriva team and to the Brookfield family.

Previously, he served as CFO at Scout Clean Energy, where he oversaw 1 GW of operating assets and helped advance a 17 GW project pipeline as well as running the sale process that led to the Brookfield acquisition of that platform in 2022.

John has been a renewable development CEO/CFO for over a dozen years in both the utility-scale and distributed generation space. Prior to his move to renewable development, he was a Managing Director in the Global Power team at Citigroup where he worked on industry leading transactions in the global renewable sector, including the financing of the Shepards Flat wind farm – now owned and repowered by Brookfield.

John began his career in management & economic consulting to the power industry – working on power sector reform overseas (Russia/Ukraine/Kazakhstan) before transitioning to the establishment of competitive power markets in the United States (Midwest ISO) and asset valuations for project financing and M&A.

Paul Tivnan is Chief Financial Officer of Deriva Energy LLC, one of the largest independent renewable power producers in the United States and a Brookfield portfolio company. He brings more than 25 years of senior leadership experience in finance, capital markets, and corporate governance across the energy, infrastructure, shipping, and cleantech sectors. In his role, Mr. Tivnan oversees financial strategy, capital markets execution, governance, and organizational leadership, supporting Deriva’s long-term growth and value creation in the energy transition.

Previously, Mr. Tivnan served as Chief Financial Officer of Brookfield Renewable Ireland and as Chief Financial Officer of Ardmore Shipping Corporation, where he helped build the company from a private equity–backed platform through its successful initial public offering on the New York Stock Exchange in 2013. Earlier in his career, he worked at Ernst & Young in Financial Services Advisory, specializing in international tax and corporate structuring. He has also served as a Director of Element 1 Corp, a developer of advanced hydrogen technologies.

Mr. Tivnan is a Certified International Director from INSEAD Business School and has completed executive leadership and corporate governance programs at INSEAD and London Business School. He holds a B.A. in Accounting and Finance and a Master of Business Studies from Dublin City University and is a Fellow of the Institute of Chartered Accountants of Ireland, a Chartered Tax Advisor, and a member of the Institute of Chartered Shipbrokers. A recognized board-level executive and industry thought leader, he is an accomplished public speaker and a contributor and co-author of The Routledge Companion to Performance Management and Control.

Diana oversees Deriva’s commercial efforts across transmission, power trading, origination, and communications.

Diana has more than 30 years of experience in the energy sector, with hands-on experience across every facet of generation technologies. She served as Chief Commercial Officer at Savion, where she spent the last five years driving strategic growth and commercial success. Prior to that, she held a distinguished 16-year tenure at Avangrid Renewables as their Vice President of Origination and Renewable Strategies, where she helped shape the future of clean energy through innovative partnerships and market leadership.

Diana has completed the Women’s Leadership Program at the Yale School of Management and the Executive Management Program at Esade in Madrid, Spain.

Russell Young is responsible for Deriva’s operational strategy, with a focus on scaling its capabilities, optimizing performance, and delivering long-term value through innovation and collaboration.

Russ has more than 30 years of experience in renewable operations across wind, solar, and energy storage, as well as renewable equipment manufacturing. Most recently, he served as Managing Director of Technical Services at Clearway Energy Group. Prior to that, he held multiple senior leadership roles at ENGIE North America, including Vice President of Operations for Renewables across the U.S. and Canada. Russ also brings valuable experience to Deriva from his time at leading equipment manufacturers, including GE, Vestas, and ABB Power-One.

Russ holds a Bachelor of Science from Clemson University, pursued an MBA from the University of Miami Herbert Business School, and has completed executive education at IMD in Lausanne, Switzerland.

Jacob Pollack is General Counsel for Deriva Energy, where he is responsible for the company’s legal functions, including compliance, tax policy, and land use. He has over two decades of experience serving as counsel to developers, owners, and operators of U.S. renewable and fossil power generation.

Before joining Deriva, Jacob was general counsel for Brookfield Renewable’s U.S. business, which he joined in 2018, and from 2006 to 2018 he held multiple in-house legal positions at Cogentrix Energy, ultimately serving as Senior Vice President, General Counsel and Secretary for the Charlotte, N.C.-based generation asset developer, owner and operator, which was a wholly owned subsidiary of Goldman Sachs until its acquisition by The Carlyle Group in 2012. Prior to Cogentrix, Jacob was an associate attorney in the corporate law department of Stroock & Stroock & Lavan LLP, working within the firm’s power-focused energy practice group.

He holds a Bachelor of Science in Engineering degree in Civil Engineering and Operations Research from Princeton University, as well as a JD from Columbia Law School.

Brandon oversees key corporate enablement functions across the organization and partners closely with leadership to strengthen talent programs, coordinate enterprise-wide services and investments, and translate business strategy into clear goals and effective operating practices. His background in AI-enabled transformation, lean process design, and workforce-of-the-future strategies supports Deriva’s continued evolution into a high-performance, future-ready organization.

Curry brings more than 15 years of experience leading enterprise transformation, workforce strategy, and operational excellence across Fortune 500 organizations, including JPMorgan Chase, Walmart, BNSF Railway, and TD Ameritrade. Throughout his career, he has built and led high-performing global teams, managed large, complex portfolios, and delivered measurable results across operations, AI- and automation-enabled initiatives, workforce optimization, and future-of-work programs.

Most recently, Brandon served as Executive Director at JPMorgan Chase, where he led a global organization of approximately 75 associates within Fraud & Consumer Protection Services. His leadership helped eliminate more than 10 million annual customer interactions while unlocking multimillion-dollar efficiencies, improving both customer and employee experiences.

As Deriva’s Vice President of External Affairs, Regulatory Strategy, and Communications, Gizelle brings over a decade of experience in energy regulation and public policy, with deep expertise spanning power markets, grid reliability, and clean energy deployment.

Prior to joining Deriva, Wray served as Vice President and General Counsel of the Solar Energy Industries Association (SEIA), representing more than 1,200 member companies across the U.S. solar and storage industry. In that role, she was the primary legal advisor to SEIA’s CEO and Board, led the organization’s legal, regulatory, and compliance strategy, and oversaw governance, risk management, and internal operations. She also directed a legal team managing more than 100 active federal and state regulatory proceedings, shaping energy markets nationwide.

Before serving as General Counsel, Wray built and led SEIA’s federal regulatory affairs strategy as Senior Director of Regulatory Affairs and Counsel, developing advocacy strategies across Federal Energy Regulatory Commission, North American Electric Reliability Corporation (NERC), the Department of Energy, and regional transmission organizations. Her work focused on transmission policy, energy storage, cybersecurity, and power market modernization.

Wray previously served as Senior Director of Regulatory Affairs at Savion, a Shell portfolio company focused on utility-scale solar and energy storage development. There, she led federal and state regulatory strategy and supported the development and integration of a 20-gigawatt project portfolio across 20 states, working closely with regulators, utilities, corporate buyers, and policymakers.

Earlier in her career, Wray held regulatory and enforcement roles at National Association of Regulatory Utility Commissioners and NERC, where she worked on grid reliability, compliance, and cybersecurity issues affecting power utilities across North America.

She began her career in Washington, D.C., supporting legislative and communications efforts for a member of the U.S. House of Representatives.

Wray is a recognized industry leader and frequent speaker on energy regulation, grid reliability, and clean energy policy. She lives in the Washington, D.C. area and is a native Virginian.

Mark brings more than 20 years of experience in the renewable energy sector, with deep expertise spanning operations, product development, quality, and digital and business strategy. Throughout his career, he has built high-performing teams, led large-scale global business transformations, and delivered meaningful strategic impact for the organizations he has served.

Most recently at Vestas, Mark played a key role in overhauling the enterprise-wide product development process from sales and engineering through to manufacturing and service operations. He also led Product Reliability, Operations Quality, Business Process Development, and the implementation of advanced analytics that drove fleet and service performance to record levels. Earlier in his career, his time as a NextEra Plant Leader gave him valuable insight into the operational performance of a diverse wind turbine fleet. Mark holds both a Bachelor’s and a Master’s degree in Mechanical Engineering.

Matt leads engineering and technical support for Deriva Energy’s wind, solar, and battery storage projects. He is responsible for strategic equipment procurement, project execution and environmental permitting support to projects in development and construction.

Before his current position, Matt held a variety of senior roles at Duke Energy in engineering and construction for commercial solar projects, asset management, and reliability engineering. Prior to joining Duke Energy, Matt was a project director for NextEra Energy Resources, where he led a regional team responsible for developing greenfield solar projects.

Matt holds a Bachelor of Science degree in Mechanical Engineering from the University of Kentucky and an MBA from Wake Forest University.