Our Team

The people working with the community to make it possible.

Our Team

Trisha Miller

Chief Executive Officer

Trisha Miller is the Chief Executive Officer of DC Green Bank, where she is in charge of leading the entire team and expanding the scope and scale of the institution’s climate and community impacts. She recently served as a Senior Director in the White House Domestic Climate Policy Office, where she led industrial and building decarbonization policy for the Biden-Harris Administration and supported national partnerships. She also co-chaired the Federal Buy Clean Task Force. Previously, Trisha was the Chief Innovation and Development Officer at Elevate, a national organization dedicated to ensuring that the benefits of clean energy reach those who need them most. Prior, she served as a Senior Director at Gates Ventures, the private office of Bill Gates, as well as at Breakthrough Energy. 

Trisha is an expert in climate and energy solutions and served as a Senior Advisor at the U.S. Department of Housing and Urban Development (HUD) in the Obama-Biden Administration, where she worked on the Climate Action Plan. At HUD, she oversaw the expansion of the Better Buildings Challenge to the multifamily sector and led a federal initiative to triple the amount of renewable energy reaching low-income communities. Prior to this role, Trisha also managed the National Green Communities Program at Enterprise Community Partners, where she helped in the development of 20,000 green affordable homes. Before joining Enterprise, Trisha launched and ran the Lawyers’ Committee for Civil Rights’ Community Development Initiative, which provided legal services to thousands of individuals across the Gulf Coast. 

She holds a J.D. from Stanford Law School, a Master of City Planning from the Massachusetts Institute of Technology, and a B.A. from the University of Michigan. Trisha enjoys teaching and mentoring students, having previously held adjunct faculty positions at Georgetown University and George Washington University. 

Gary Decker

Chief Operating Officer

Gary Decker serves as the Chief Operating Officer at DC Green Bank. Gary has spent fifteen years working on public policy at the national and international levels to improve lives in the United States and around the world. He has worked on a range of issues including renewable energy, sustainable development and climate change, the protection and expansion of voting rights, health care, and building a more equitable and inclusive economy.

Gary holds an M.A. in International Relations and International Economics from the Johns Hopkins School of Advanced International Studies (SAIS) and a B.A. in Political Science and International Relations from Goucher College. 

Greg Haygood

Chief Financial Officer

Greg is the Chief Financial Officer at DC Green Bank. He is dedicated to aligning the organization’s vision with practical financial strategies that will promote sustainability, clean economy, and inclusive prosperity for all of DC’s stakeholders. Greg’s career has been defined by his expertise in financial operational excellence, business strategy, governmental compliance, and asset management.  Most recently, Greg served as the Chief Financial Officer for the NoMa BID, a community development organization in the NoMa DC neighborhood, and in the prior decade, Greg served as Director of Finance for Motley Fool Asset Management.

Greg holds a B.S. in finance from American University and an M.S. in accounting and finance from the University of Maryland.

Dionne Joemah

General Counsel

Dionne Joemah serves as general counsel where she oversees the legal department. Ms. Joemah has over 20 years of legal experience in financial services, affordable housing and real estate, working in both the public and private sectors, handling complex real estate transactions. Most recently, Ms. Joemah served as deputy general counsel with the District of Columbia Department of Housing and Community Development.

Ms. Joemah is a graduate of Howard University and holds a bachelor’s degree in economics from North Carolina A&T State University.

Sri Sekar

Chief Investment Officer

Sri Sekar is DC Green Bank’s Chief Investment Officer. He joined DC Green Bank after a more than six-year tenure at Deloitte where his work centered on investment in clean energy technology and grid modernization across five continents. His portfolio of clients and counterparts at the firm included major international development organizations such as the World Bank Group and the U.S. Agency for International Development, as well as domestic federal agencies, municipal governments, major multinational companies, and renewable energy developers and financiers. Prior to his work at Deloitte, Sri managed utility scale onshore wind transactions for GE’s Renewable Energy business, and was selected for the company’s inaugural class of its flagship executive leadership program. Sri started his career working for the DC Mayor’s Office, where he drove policy and legislation that supported the Mayor’s economic development agenda, which spanned affordable housing, commercial and retail development, and workforce development.

He holds an M.B.A. from Georgetown University, a J.D. from George Washington University, and a B.A. from Virginia Commonwealth University.

Mary Edwards

Senior Director of Credit Administration

Mary Edwards, a native of Raleigh, NC, has lived in the DC Metro area since 2007. She has 15 years of commercial lending experience, focusing on Credit Risk Management at Large Regional Banks, International Banks and local Community Banks. She has extensive experience in crafting commercial lending processes and procedures, including processes relating to Commercial Real Estate, ABL financing and Non-for-Profit financing. Mary is a graduate of Salem College, located in Winston-Salem, NC. 

Marc Ericson

Senior Director of Real Estate

Marc Ericson is the Senior Director of Real Estate for DC Green Bank, where he is responsible for designing, implementing, and overseeing new programs to deploy capital with a focus on decarbonization and climate resilience, affordable housing, and green buildings. His previous experience with affordable multifamily housing includes his role as a Director of Underwriting with a focus on affordable housing for a Fannie Mae and Freddie Mac lender. He has worked on multiple affordable housing types, including Low-Income Housing Tax Credits, tax-exempt bond deals, limited equity cooperatives, and HUD Section 8 HAP contracts. As a Senior Vice President at National Cooperative Bank, he has structured the financing for various multifamily housing types, including Multifamily Housing Cooperatives, Condominium Associations, and Community Associations. He also worked on the structuring and sale of subordinate debt. 

Marc received his M.B.A. from the University of Washington, M.A. in Secondary Education from Loyola Marymount University, and B.A. in Mathematics from the University of Virginia. 

Mojdeh Efatian

Human Resources Director

Mojdeh ‘MJ’ Efatian is DC Green Bank’s Human Resources Director.  Mojdeh has 4 years of experience with a financial services institution through her previous roles with Northwestern Mutual. Mojdeh has served as a human resources consultant and additionally has experience in training and development.  

Mojdeh received her master’s in jurisprudence in Labor & Employment Law from Tulane University and obtained her bachelor’s degree in International Relations from Louisiana State University. Mojdeh is a member of The Junior League of Washington. 

Ronald K. Hobson

PACE Program Director

Ronald Hobson serves as the DC PACE Program Director at DC Green Bank. Ronald is a highly skilled, veteran financial services provider and leader in the Washington DC market who has earned the solid reputation of providing access to capital and financial advisory assistance to some of the most successful and highly regarded government contractors, professional services firms and nonprofit organizations. Ronald has worked at a number of regional banks in the DC markets, most recently with Customers Bank where he worked as a Senior Vice President. Mr. Hobson also served as the Associate Deputy Administrator for Government Contracting and Minority Enterprise Development at the Small Business Administration where he oversaw the nation’s $27 billion 8(a) program.

Ronald graduated with cum laude honors from Howard University with a Bachelor of Business Administration degree in Finance and is a Betta Gamma Sigma inductee (an academic honor society for top business students). He is also a distinguished veteran, having served in the US Army, Office of Assistant Chief of Staff for Intelligence at the Pentagon. He is the proud father of three whose children have also excelled in material science engineering/physics, medical school, and mathematics.

Shiva Patel

Associate Director of Investments

Shiva Patel has nearly a decade of experience with community-based organizations, start-ups and impact investment firms, particularly in the areas of energy and climate justice, transformative finance, and worker-owned cooperatives. This includes developing and implementing local/state/national projects and programs, policy analysis and advocacy, as well as conducting financial due diligence and investment deal structuring. He recently served as a Senior Fellow with The Solutions Project, an advisor to the Justice40 Accelerator, and played an integral role in the development of the Healthy, Equitable, Resilient Communities (HERC) accelerator and investment fund, a joint effort on behalf of Justice Capital and Full Spectrum Capital Partners. Prior to this, he co-launched the energy justice program at the Center for Biological Diversity. 

He holds an M.B.A from UC Berkeley Haas School of Business, and a B.S. in Environmental Economics and Policy and a B.A. in Interdisciplinary Studies, also from UC Berkeley. 

Vanessa Angeles

Senior Accounting and Finance Manager

Vanessa Angeles serves as the Senior Accounting and Finance Manager at DC Green Bank, where she supports the CFO, manages the accounting and finance operations of the organization and oversees the financial compliance requirements. She is a skillful accounting professional with over seven years of experience in: financial planning and analysis, system implementation, general ledger management, financial performance reports, GAAP, sustainable finance and accounting, internal audits, and process efficiencies. Before joining the team, Vanessa worked as a consultant for DC Green Bank providing accounting services. Her prior experience includes consulting at a DC accounting firm, specializing in government accounting support services and as a team lead for consolidated accounting services with an international organization.

Vanessa graduated from Menlo College and holds a B.S. in Business Management with a concentration in Accounting. In the future, she plans to continue working towards obtaining a CPA license and utilizing her knowledge to help the organization grow.

Derrick Holloway

Investment Manager

Derrick Holloway is an Investment Manager at DC Green Bank, where he works on origination, structuring, and executing financial products. Derrick has a corporate finance and commercial real estate background that spans from marketing, leasing, asset management, underwriting, and development.  He joins DC Green Bank after spending 5 years in private and non-profit commercial lending, where he underwrote over $100 million in construction loans related to charter school development. His experience in corporate finance includes forecasting commercial projects, $15 million and up bridge loans, and $25 million and up construction loans. He has also helped manage a $100 million “School of Hope” charter school development fund with the purpose of opening 10 charter schools in 3 years.  

Derrick attended Temple University’s Fox School of Business and double majored in Finance and Real Estate. He is also a licensed real estate agent in California and is in the process of obtaining his General Contractors license in the state of Maryland.   

Gabriela Kluzinski

Investment Manager

Gabriela Kluzinski is DC Green Bank’s Investment Manager, where she is responsible for business origination, deal structuring and execution, and portfolio management. Her expertise is in evaluating stormwater retention, green building, solar, and clean transportation investments as well as product development in sustainable affordable housing.

Gabriela’s background is in impact investing, asset management, cleantech evaluation, and endowment fundraising. Prior to her current role, she was on Cambridge Associate’s Sustainable and Impact Investing team where she assessed the assets of non-profit institutions and university endowments ranging from $200 Million to $5 Billion Assets Under Management for their sustainability and diversity metrics and proposed more mission-aligned investments.

Gabriela received her B.B.A from the University of Notre Dame in Finance. She has been awarded Galileo Master Certifications in Electric Vehicles and Renewable Energy Market Trends & Finance.

Dan Lebiednik

Communications and Outreach Manager

Dan Lebiednik is the Communications and Outreach Manager at DC Green Bank. He has more than 10 years of strategic communications experience, working with think tanks, government agencies, advocacy organizations, and trade associations to help connect to the public. Most recently, he helped the U.S. Department of Justice Community Relations Service share its work supporting communities affected by hate crimes. Before starting his career in communications, Dan served in the Peace Corps in the Federated States of Micronesia. Dan has a B.A. in journalism and Latin American studies from New York University.

Gaby Argoti

Commercial Loan Servicer

Gaby Argoti is the Commercial Loan Servicer for DC Green Bank, where she is responsible for managing collection and loan servicing functions in connection with DC Green Bank’s commercial loan portfolio. With over 15 years of experience, Gaby specializes in commercial loans, residential loans, and banking services. In recognition of her outstanding contributions, Gaby was appointed as a Commissioner for the Maryland Governor’s Commission on Hispanic Affairs in 2017, a position she continues to hold. Gaby prides herself in her dedication, professionalism, and bilingual skills in Spanish that have helped her grow in her career.

Gaby attended the Universities at Shady Grove where she studied Business Administration and Montgomery College with a focus on International Business. Most recently, she completed a Global Business certificate program at Harvard Business School and has plans to further her education to be a continued asset to the community.

Natrebo Douglas

PACE Program Coordinator

Natrebo Douglas is the PACE Program Coordinator for DC Green Bank. Natrebo has a commercial real estate, corporate finance, and commercial card background. His professional career has consisted of creating and implementing process improvements and contributions to organizational growth. He has been trained in Lean Six Sigma, Six Sigma and Agile principles to help optimize and scale for future growth. He is process driven with a long-standing record of innovation and creativity.  

He values partnerships within the community. He has partnered with Virginia Commonwealth University as a mentor in the School of Business. He has worked with Junior Achievement as a mentor socializing financial education to students and family members. He has been an active contributor to the Boys and Girls club and Ameri-Corps. His favorite pass-time is soccer where he has coached different levels and ages through his local soccer community.  

He graduated from Virginia Commonwealth University with a Bachelor of Science in Business Management. My educational career and life experiences developed my ability to be empathic to others and is a key driver to my continued Creative Confidence.

Christina Crosson

Staff Accountant

Board Members & Advisors

Brandi Colander

Board Chair
Brandi Colander is an attorney and sustainability practitioner with public policy expertise who has testified before Congress and state governing bodies. Her work across sectors including advocacy, public service and corporate have allowed her to cultivate strategic partnerships with key stakeholders. As the Chief Sustainability Officer at WestRock Company she led the development and execution of a strategy to deliver innovative and sustainable solutions to customers around the world including the commitment of a science based target (SBT). Prior to joining WestRock she was a Principal at The Raben Group, supporting clients by advancing their policy and strategy needs, as well as Head of External Relations with Charter Communications creating diverse partnerships and philanthropic investments. Her public service includes a Presidential appointment as Deputy Assistant Secretary for Land and Minerals Management at the U.S. Department of the Interior advancing policy and regulations for the nation’s four energy development bureaus as well as Deputy General Counsel for the White House Council on Environmental Quality.

Colander serves as the Board Chair of the DC Green Bank Board of Directors, Yale School of the Environment Leadership Council member, and Yale Center for Environmental Law and Policy board. She earned her Master of Environmental Management at Yale University, J.D. from Vermont Law School, and Bachelor of Urban and Environmental Planning from University of Virginia. Colander is a licensed attorney and member of the Supreme Court of the United States. She resides in Washington, DC with her family and affectionate but obstinate dog.

Edward Hubbard

Board Secretary / General Counsel for the Renewable Fuels Association (RFA)
Ed Hubbard currently serves as General Counsel for the Renewable Fuels Association (RFA), where he provides counsel and advice on a wide array of federal renewable fuel and clean energy issues and policy. He advocates for the U.S. ethanol industry on key energy, agriculture, transportation, and clean air policy and regulatory matters before the U.S. Congress and key federal government agencies. Ed serves on the Agricultural Technical Advisory Committee for Trade (ATAC) in Grains, Feed, Oilseeds and Planting Seeds, jointly managed by US Department of Agriculture and US Trade Representative, and on the Board of Directors of Green Seal Inc. Prior to joining RFA, Ed served as Legislative Director and Counsel in the office of U.S. Representative Albert Wynn, overseeing the Congressman’s Maryland Delegation leadership responsibilities and chair activities for the Congressional Black Caucus Small Business Task Force, Hydrogen Caucus, and Wireless Caucus. Ed earned his J.D. from Howard University and B.A. from UCLA.

Nick Burger

Board Vice Chair / District Agency Board Member / Deputy Director, Energy Administration of the Department of Energy & Environment (DOEE)
Nick Burger is the Deputy Director of the Energy Administration at the District of Columbia’s Department of Energy and Environment. He leads a team that is working to meet the District's climate and energy goals through building energy efficiency, solar power, and clean transportation policies and programs. He was previously a Senior Economist at the RAND Corporation and the director of RAND’s Washington office. He holds a PhD in economics, and his research has focused on energy, climate, and resilience issues. He was a Lead Author on the Fourth Assessment Report produced by the Intergovernmental Panel on Climate Change. A 16-year resident of the District, Dr. Burger has worked with Habitat for Humanity of DC for over ten years, helping them construct eight Passive homes for District residents. He served as an ANC Commissioner in ANC 6B for four years and has worked extensively on zoning issues and housing expansion.

Todd Monash

Board Member / Vice President of United Bank
Todd A. Monash is a Vice President of United Bank and a member of its commercial services team. He works with corporate clients to solve their most important banking needs related to credit, deposit, and treasury management. His client engagements include C-suite executives both in the for-profit and not-for-profit sectors. He has provided financial literacy classes in English and Spanish to programs like the Washington Area Community Investment Fund (WACIF), area high schools, and churches. In addition, he has been a featured speaker at Georgetown University’s Master of Professional Studies in Real Estate. Todd obtained his B.A. from University of Notre Dame and is a graduate of the Executive Development Program at Georgetown University.

Sarosh Olpadwala

District Agency Board Member / Deputy Mayor's Designee, DMPED
Sarosh Olpadwala is the Director of Real Estate in the Office of the Deputy Mayor for Planning and Economic Development (DMPED) in DC. He is responsible for overseeing the inter-agency acquisition, asset management, leasing, disposition, and strategic planning of a portfolio of District-based development projects worth over $13 billion. Located across all eight District wards, the projects vary in size from small-scale neighborhood retail to the 100-acre St. Elizabeths East Campus Redevelopment to the $4 billion initiative to reclaim the long-neglected Anacostia Waterfront. Prior to his appointment to the Office of the Deputy Mayor, Sarosh’s career spanned both the public and private sectors, including positions with Norcross Boldt, the U.S. General Services Administration (GSA), Cherokee Investment Partners, and Clark Construction. He earned both his B.S. in Operations Research & Industrial Engineering and M.B.A. from Cornell University.

Ricardo Nogueira

Board Member / Expert on Climate Finance, International Development, and Sustainable investing
Ricardo (Rick) Nogueira is an expert on climate finance, international development, and sustainable investing. His clients include major philanthropies, governments and multilateral development banks. He previously served as Senior Advisor on Climate Finance at the U.S. Department of State during the Obama administration. He was a U.S. board member of the Green Climate Fund (GCF) where he oversaw all GCF related matters, including initial resource mobilization, institution building, strategy, and public outreach. Prior to public service, Rick spent 10 years in private sector fund management with a focus on carbon markets and clean energy. He was the founder and a Managing Director at Leaf Clean Energy Company, a private equity fund targeting clean energy investments across the Americas. Rick also has extensive legal experience at Van Ness Feldman, an energy and environmental boutique, and Felsberg & Associados. Rick obtained his B.A. from Lafayette College and J.D. from Seton Hall School of Law.

Jonathan Kayne

Board Member / Interim Director of the Office of Public-Private partnerships and Director of the Special Projects in the Office of the Deputy Mayor for Planning and Economic Development
Jonathan Kayne is the Interim Director of the Office of Public-Private Partnerships and Director of Special Projects in the Office of the Deputy Mayor for Planning and Economic Development. He has over 20 years of experience in the real estate industry in both the public and private sectors including office, retail, and residential. Jonathan has also held positions with the District as Interim Director and COO of the Department of General Services. Prior to joining the District government, he held positions as COO of DBT Development Group, Senior Vice President, Director of Real Estate for Federal Realty Investment Trust, and Vice President for Charles E Smith Residential. Jonathan received his B.S. from University of Hartford and M.S. in Real Estate from Johns Hopkins University.

Carmen Pigler

Board Member / Deputy CFO and Treasurer in the District's Office of the Chief Financial Officer
Carmen Pigler is Deputy CFO and Treasurer for the Office of the Chief Financial Officer in Washington, DC. As treasurer and deputy CFO, she manages the District’s treasury programs associated with its annual operating and capital budget. This includes management of the District’s banking and investment activities, check and electronic receipts and disbursements, and its debt issuance and repayment activities. She also oversees the District's 401(a) and 457(b) retirement plans, 529 college savings plan, and the Unclaimed Property program.

Previously, Ms. Pigler served as associate treasurer of Debt and Grants. In this role, she managed all aspects of the District’s $11-billion debt portfolio and provided leadership in all aspects of capital improvement and economic development finance matters. She also administered federal grant funds, tracking expenditures in all grant-funded programs, and provides regular assessments of grant funds. Ms. Pigler holds a B.A. in Economics from South Carolina State University and a Master of Business Administration from Columbia University Graduate School of Business.

Deborah Loomis

Board Member / Environmental Attorney and Senior Advisor for Climate Change to the Secretary of the Navy
Deborah Loomis is an environmental attorney and a retired Navy judge advocate. She began her Navy career as one of the early women onboard U.S. combatant ships, deploying to the Persian Gulf and in the Atlantic and Pacific Oceans, and serving as a Navy liaison to the U.S. Senate. She also advised senior clients including several four-star admirals on complex environmental planning matters and litigation spanning the globe, from the Arctic to Guam. She has worked extensively with federal agency and other partners to include state governments, regulatory agencies, non-governmental organizations and public interest groups.

Ms. Loomis is currently a Presidential appointee, serving as the Senior Advisor to the Secretary of the Navy for Climate Change. In this role she is influencing policy and the overall strategy for both the Navy and Marine Corps. Ms. Loomis has also been working at the nexus between climate change and national security for many years and has contributed to several articles and publications on climate and security.

Ms. Loomis graduated from the University of Pennsylvania with dual degrees from the Wharton School and the College of Arts and Sciences. She earned her law degree from Georgetown and later a master of laws focusing on environmental and energy law, also from Georgetown.