Our Board & Leadership

Joseph Dominguez is the President and Chief Executive Officer of Constellation, which employs 14,000 workers, has generating capacity of more than 32,400 megawatts and serves more than 16 million homes and businesses with clean energy. With revenues of more than $17 billion and total assets of $49 billion, Constellation comprises both the nation’s lowest-carbon fleet among large power producers and the largest competitive energy supplier. Together, they are America’s clean energy leader, producing about 10% of the nation’s clean energy and helping America transition to a clean, sustainable future.

As CEO, Dominguez oversees Constellation’s clean energy fleet of nuclear, wind, solar, hydroelectric and natural gas facilities in 19 states, and the nation’s top competitive retail and commodities business, which provides electricity, natural gas and other energy-related products and services to two million residential, public sector and business customers nationwide, including more than three-fourths of the Fortune 100.

Previously, Dominguez served as CEO of ComEd, an Exelon company, which powers the lives of more than four million residential and business customers, or 70 percent of Illinois’ population. In that role, he was responsible for the safe and reliable delivery of electricity to customers and oversight of the management of the electric grid for over four million customers in Chicago and most of northern Illinois.

Prior to joining ComEd, Dominguez served as executive vice president of governmental and regulatory affairs and public policy for Exelon, where he led the development and implementation of federal, state, and regional governmental, regulatory, and public policy strategies.

Prior to joining Exelon, Dominguez was a partner in the law firm of White and Williams, LLP, with a broad-based litigation practice counseling large and small corporations, institutions, and government entities. He is a former assistant U.S. Attorney, Eastern District of Pennsylvania.

Dominguez currently serves on the board of directors for:

Dominguez earned his bachelor’s degree in mechanical engineering from the New Jersey Institute of Technology. He earned his law degree from Rutgers University School of Law, where he graduated magna cum laude, and was recognized as a Dean’s Scholar.

The Honorable Nelson A. Díaz, is a distinguished lawyer, respected jurist, successful partner, exceptional public servant, Fortune 100 corporate director, activist, columnist and author. In 1972, he graduated from Temple University’s James Beasley School of Law and in 2021, he created the endowed Honorable Nelson A. Díaz Professorship in Law at Temple. Presently, he is a member of Temple University’s Board of Trustees, of Counsel at Dilworth Paxson and co-founder of Hispanics in Energy.

Mr. Díaz is a trailblazer who broke many barriers. He was the first Latino attorney to pass the Pennsylvania bar, the first Latino Judge in the history of the Commonwealth of Pennsylvania, the first person of color to be selected Administrative Judge in the Court of Common Pleas, the first Puerto Rican White House Fellow serving Vice President Walter Mondale, the first Puerto Rican Japan Society Fellow, and the first minority General Counsel at United States Department of Housing and Urban Development (HUD). He is a proud co-founder of Black American Law Student Association (BALSA) at Temple University School of Law and co-founder of the Hispanic Bar Association of Pennsylvania. Judge Díaz served on the Supreme Court of Pennsylvania Criminal Procedure Rules Committee and the Committee on Racial and Gender Bias.

From his humble beginnings, this native New Yorker grew up in a public housing development in Harlem. He dedicated his life to fight for the expansion of civil and human rights for all. As a recipient of three United States Presidential Appointments, his public service exemplifies the qualities of intelligence, imagination and judgment impacting public policy nationwide as evidenced by the “Díaz Opinion”. This “breakthrough opinion” helped inaugurate a new model for affordable housing development using mixed finance through public/private funding and mixed low income and market rate units to revitalize housing for the poor.

As champion for diversity, equity and Inclusion, Judge Díaz has mentored young professionals throughout his career. He advocated for marginalized and underrepresented groups, including African Americans and other communities of color, Soviet Jews, women, Latinos and the Puerto Rican diaspora. As a leader in economic development, pioneer in court reform, champion for fair housing, fighter for bilingual education, employment and voting rights, as well as, immigration protections, Judge Díaz positively impacted the lives of the voiceless and the most vulnerable.

Nelson A. Díaz monitored elections in Latin America; he was the first American Judge to sit on a Japanese Court as a Japan Society Fellow; he fought for the human rights of Soviet Jews in USSR and he taught the American legal and jurisprudence system in Albania, Peru, Columbia and China. As a co-founder of the Latino-Jewish Coalition of the American Jewish Committee, he promoted stronger collaboration between the two communities. This Fulbright Scholar, received five (5) Honorary Doctorate Degrees and numerous awards in recognition of his legal contributions including the Justice Sonia Sotomayor Diversity Award. The Legal Intelligencer awarded 100 of Pennsylvania’s most influential attorneys with a Lifetime Achievement Award including Judge Díaz.

In his numerous ground-breaking professional roles, as a partner in a Top 100 law firm, City Solicitor of Philadelphia, or Corporate Director of Exelon Corporation, a fortune 100 company, Nelson Díaz has fought for diversity, equity and inclusion in the public and private sectors and paved the way for many others.

His powerful and inspirational autobiography, “Not from Here, Not from There – No Soy De Aquí Ni De Allá,” which has been positively received, Díaz said, “I may have been the first but I don’t want to be the last.”

Lewis Binswanger is senior vice president of Government, Regulatory and External Affairs at ComEd. He leads governmental, regulatory, and external affairs. He also serves as a member of the ComEd Management Committee and has over 40 years of utility industry experience.

ComEd is a unit of Chicago-based Exelon Corporation (NASDAQ: EXC). ComEd delivers electricity to more than 9 million people across northern Illinois, or 70 percent of the state’s population.

Lewis Binswanger previously served as Vice President Governmental and External Affairs at Nicor Gas where he developed, oversaw and directed the regulatory and legislative policy, strategy and planning in the State of Illinois. He represented the business interests of the company within the regulatory and legislative environment and served as a key strategic advisor to the enterprise. Binswanger led a team of regulatory specialists engaged in the formulation of regulatory solutions and strategies designed to achieve the financial and operational goals and objectives of the Company. He directed the legislative team and external lobbyists to establish company policy regarding state legislation.
 
Prior to joining Nicor Gas, served as Senior Vice President Legal, Governmental and Regulatory Affairs at Source Gas, led Business and Regulatory Affairs at TECO Energy and served in high level management and regulatory roles in other energy enterprises.
 
Binswanger serves as Board Member of the American Red Cross, a Board Member of the Illinois Hispanic Chamber of Commerce, Advisory Council Member of the Illinois Economic Development Corporation, and as Advisory Council Member of the Center for Public Utilities, New Mexico State University. He earned his Bachelor of Science in Electrical and Electronics Engineering at the University of Texas at El Paso.

Dennis V. Arriola is an Operating Partner at Sandbrook Capital, a global private equity firm focused on investments transforming the world's energy infrastructure. He previously served as chief executive officer of Avangrid, Inc., a publicly traded utility and renewable energy company, from 2020 until 2022. He joined Avangrid from Sempra Energy, a publicly traded utility and energy infrastructure company, where he served as executive vice president and group president, and chief sustainability officer. Throughout his career, Mr. Arriola has served in a broad range of leadership positions in gas and electric utilities as well as renewables, including as chairman, president and chief executive officer of Southern California Gas Co., senior vice president and chief financial officer of both San Diego Gas & Electric and Southern California Gas Co., vice president of communications and investor relations for Sempra, and regional vice president and general manager of Sempra's South American operations. He was previously the executive vice president and chief financial officer of SunPower Corporation, a Silicon Valley-based solar technology company.

Mr. Arriola currently serves on the board of directors of ConocoPhillips, Meritage Homes, Commercial Metals Company and the Automobile Club of Southern California. He previously served on the boards of Avangrid, Inc., the California Latino Economic Institute, the U.S. Chamber of Commerce, the California Business Roundtable, the Edison Electric Institute, and the boards of several Sempra operating companies, including Infraestructura Energética Nova, a publicly traded company in Mexico, Luz del Sur SAA, a publicly traded company in Peru, and Chilquinta Energía in Chile.

Mr. Arriola received his A.B. in Economics from Stanford University and his MBA from Harvard University.

Maria Pia Tamburri is vice president–Intergovernmental Affairs and Economic Development.

She is responsible for the strategic oversight and development of the company’s relationships with non-governmental and advocacy organizations across Dominion Energy’s footprint. Tamburri additionally oversees Dominion Energy’s Economic

Development Strategy to bolster local, regional, and state economic development efforts.

Tamburri joined Dominion Energy in 2019 as senior community engagement policy director, and became director-Diversity, Equity & Inclusion and Employee Engagement in 2020. She was promoted to vice president–Diversity, Equity & Inclusion and Employee Engagement in 2022 and assumed her current position in August 2023.

Prior to joining Dominion Energy, she led global public affairs and crisis management for Allegion, plc. in Carmel, Ind., and previously lived in Germany where she served as the chief of strategic outreach initiatives for U.S. Africa Command, U.S. Department of Defense. From 2001 to 2008, Tamburri held a variety of roles in the administration of President George W. Bush, where she worked as senior advisor for public diplomacy and public affairs at the Department of State’s Bureau of Western Hemisphere Affairs and director of specialty media and Hispanic spokesperson in the White House Office of Media Affairs. She also served in the Department of Housing and Urban Development and the U.S. Environmental Protection Agency. Earlier in her career, she worked in the U.S. House Judiciary Committee and House Government Reform Committee.

Tamburri serves as the executive sponsor for the Hispanics in Energy Virginia Chapter. She is also on the board of directors for the National Hispanic Corporate Council, YMCA of Greater Richmond and is a member of the Hispanic Association of Colleges and Universities Corporate and Philanthropic Council and The Presidential Precinct Global Advisory Council. She earned a bachelor’s degree in political science from Florida International University in Miami, Florida and studied Latin American politics at the Universidad de Belgrano in her native city of Buenos Aires, Argentina.

Over the past thirty years, Jose F. Niño has built a national and international business development company. His company, El Niño Group, LLC, has a long and productive history serving as the primary connection in establishing partnerships, business development opportunities, government and corporate certifications, and strategic planning for clients.

Product distribution includes fuel additives for oil and gas; energy solutions such as generators and solar panels; telecommunications infrastructure including towers, dark fiber, and micro data centers; financial instruments; construction services and materials; workforce development; and food services—providing dairy, shelf-stable products, and IT applications for grocery stores.

Mr. Niño has extensive experience working with entrepreneurs, the federal government, and corporations in the United States—particularly within Hispanic and other ethnic communities—as well as in Mexico, the Caribbean, and Latin America. He assisted MicroTech, based in Virginia, in obtaining a $50 billion IDIQ (Indefinite Delivery/Indefinite Quantity) federal government contract. The agreement is to re-infrastructure the U.S. government's telecommunications and IT systems. He is also co-founder of Allied Wireless Infrastructure Services.

Mr. Niño is a longtime member and the first paid President/CEO of the U.S. Hispanic Chamber of Commerce (USHCC). He helped expand the Chamber from fewer than 30 chambers to more than 258, representing the interests of over 1.3 million U.S. Hispanic-owned businesses. Today, he serves as an advisor to the organization. The USHCC provided the climate to foster more businesses and more customers by building the brand, institutionalizing, and endowing programs for perpetual growth. The Chamber is now a significant force within the U.S. economy, representing the interests of 4.7 million Hispanic-owned businesses and promoting the economic growth and development of Hispanic entrepreneurs nationwide.

Mr. Niño currently serves as Chairman of the Board of Biofriendly Corporation (an environmental education and energy company); Advisory Board Member at Helios Altas (green energy—power spinning wheels in rivers to create electricity); former Board Member of Instant Translation Services; member of the National Executive Committee of the Boy Scouts of America; Advisor to the Cyber Warrior Academy; and Advisor to the International Migrant Workers Union (legal workforce development).

He is a graduate of the University of Maryland and holds an honorary Ph.D. from Claustro Doctoral Iberoamericano in Mexico. He is also a former member of the Small Business Advisory Board of the Federal Reserve Bank of Chicago.

Mr. Niño lives in Maryland with his wife, Theresa. Together, they have three daughters and ten grandchildren.

Deanna Rodriguez is president and CEO of Entergy New Orleans, an electric and gas utility that serves more than 211,000 customers in New Orleans, Louisiana. She is responsible for the company’s safe and reliable service, financial performance, customer service, regulatory and public affairs, resource planning, economic development programs and charitable contributions.

Before assuming her current role in 2021, Rodriguez served as vice president of regulatory and public affairs for Entergy Texas. She previously served as vice president of regulatory affairs for Entergy New Orleans, where she worked closely with the New Orleans City Council to launch the first Energy Smart program. The comprehensive energy efficiency plan was developed in collaboration with the New Orleans City Council and continues assisting customers today.

As vice president of corporate contributions for Entergy from 1999 to 2003, Rodriguez oversaw the creation of the Entergy Charitable Foundation and the company’s volunteer program, Community Connectors. Earlier, she served as director of external affairs, where she led the effort to secure $200 million in community development block grant funding to help Entergy’s Louisiana, Mississippi and New Orleans operating companies rebuild after Hurricane Katrina.

Before joining Entergy in 1994, Rodriguez was the minority affairs liaison for the State Bar of Texas, where she created the Texas Minority Counsel Program, a corporate partnership responsible for increasing participation of minority and women lawyers in the State Bar of Texas.

She serves on the boards of directors for The National WWII Museum in New Orleans, Louisiana’s International Women’s Forum, the Ogden Museum of Southern Art, The Youth Empowerment Project and the Children’s Hospital of New Orleans.

Rodriguez received a master’s degree in public affairs from the Lyndon B. Johnson School of Public Affairs at The University of Texas at Austin and a bachelor’s degree in government from The University of Texas at Austin.

Entergy New Orleans provides electricity to more than 211,000 customers and natural gas to more than 109,000 customers. Entergy New Orleans is a subsidiary of Entergy Corporation, a Fortune 500 company headquartered in New Orleans. Entergy powers life for 3 million customers through our operating companies in Arkansas, Louisiana, Mississippi and Texas. We’re investing in the reliability, resilience and growth of the energy system while helping our region transition to cleaner, more efficient energy solutions. With roots in our communities for more than 100 years, Entergy is a nationally recognized leader in sustainability and corporate citizenship. Since 2018, we have delivered more than $100 million in economic benefits each year to local communities through philanthropy, volunteerism and advocacy. Entergy is headquartered in New Orleans, Louisiana, and has approximately 12,000 employees.

Francisco J. Leon is President and Chief Executive Officer of California Resources Corporation (CRC), an independent energy and carbon management company committed to energy transition.

Mr. Leon previously served as Executive Vice President and Chief Financial Officer of CRC, a position he held since August 2020. He originally joined CRC in 2014 during the spin-off from Occidental Petroleum as Vice President of Portfolio Management and Strategic Planning. In 2018, Mr. Leon was named Vice President of Corporate Development, where he oversaw all acquisition and divestiture activities for the company.

Prior to joining CRC, Mr. Leon worked at Occidental Petroleum Corporation, where he held various roles in Finance, Planning and U.S. and International Business Development. Mr. Leon started his career with Petrie Parkman & Co., Inc., an energy-focused boutique investment banking firm.

Mr. Leon currently serves on the American Red Cross Los Angeles Region Board and the BBA Advisory Board of the University of Texas McCombs School of Business. From 2019 to 2022, he served on the Board of the Union Rescue Mission of Los Angeles, which is one of the largest privately run homeless shelters in the U.S.

Mr. Leon holds an M.B.A. from the University of Texas, Austin, and a Bachelor of Arts in International Business from San Diego State University and CETYS Universidad in Mexico.