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Our Board

David Rusenko

David Rusenko

David was previously the Founder/CEO of Weebly and is currently the Managing Partner at Leap Forward Ventures.

Fong Wan

Fong Wan

Fong has been a leader in California’s vision for a decarbonized environment over the last 3 decades. He has dedicated his entire career in energy: starting in oil and natural gas industries, building a diversified and clean energy portfolio for PG&E, championing market structure policies and strategies to enable green-house emission free sources of energy, and shaping California’s policies for the transition to transport and building electrification.

As an officer for PG&E over the last 23 years, Fong built a diversified, clean, affordable and reliable energy portfolio for PG&E’s 5 million electric customers and 4 million gas customers. He also led PG&E’s strategic and policy initiatives in wholesale and retail market structures, including power plant developments. He championed clean technologies, renewables and storage energy projects, bringing online 300+ projects and 10,000+ MWs, leading to more than 90% in GHG free energy. Fong built and oversaw sophisticated and prudent energy trading across multiple commodities in electricity, natural gas, liquids, renewable energy credits, carbon allowances, and low carbon fuel standards.

Fong received an MBA in finance from University of Michigan and a BS in Chemical Engineering from Columbia University.

Mark Hall

Mark Hall

Hall is an Oakland, CA native, and former Capital Improvement Project Manager for the City of Oakland, instrumental in the adoption of the 2008 ARRA Green Jobs and Environmental Action & Resilience Plan. For the last 7 years, Mark has worked in the private sector for Revalue.io, an energy efficiency project developer working to prepare communities for the clean energy transition through energy efficiency and workforce development.

In 2019, Mark was appointed to the California Green Bond Market Development Committee by CA State Treasurer Fiona Ma and is currently working with local jurisdictions and issuers to increase adoption, equity, and diversity.

Mark is a graduate of Morehouse College and a member of the International Association of Assessing Officers.

Stephanie Ziegler

Stephanie Vega

Stephanie Vega is part of Ferguson’s Strategic Development Group and serves as Director of Environmental Product Strategy. In this role, Stephanie is responsible for developing and executing Ferguson’s intentional environmental product strategy by working closely with sales leadership and category management team who manages Ferguson’s strategic vendor partners. Additionally, she works in close coordination with other functional departments to drive sustainable products and solutions to market to meet evolving customer needs.

Prior to her current role, Stephanie helped create Ferguson’s corporate venture capital capability and put Ferguson capital to work as a strategic investor in the construction technology start up community. Post investment, she managed and developed Ferguson’s investment portfolio working to accelerate portfolio company growth by providing a seamless path to market.

Sara Neff

Sara Neff

Sara Neff is the Partner/General Manager for Sustainability and ESG on the Microsoft Cloud Operations and Innovation team, where she is helping its data center fleet meet Microsoft’s ambitious goals of achieving carbon negative, water positive, zero waste, and the protection of more land than it uses. Prior to that, she served as Head of Sustainability for the Americas for Lendlease. In both 2022 and 2023, under her leadership Lendlease earned the top residential score in the Americas on GRESB and multiple green leasing awards from the Institute for Market Transformation.

Previously, she served as Senior Vice President, Sustainability at Kilroy, where she helped the company achieve carbon neutral operations in 2020. Ms. Neff serves on the FIBRA Macquarie Technical Committee and the Dynamo Energy Hub Advisory Board. She has been named a Los Angeles Woman of Influence by the Los Angeles Business Journal, a 40 under 40 awardee by ULI, a Los Angeles Power Woman in Real Estate by Bisnow, a Women in Sustainability Leader by Green Building & Design magazine, a Woman of Influence by Globe St Real Estate Forum, a Best in Building Health awardee by the Center for Active Design, and was the recipient of NAREIT’s 2020 Leader in the Light Leadership Personified award, an award that recognizes achievement in sustainability. She is a LEED Fellow and holds a BS from Stanford and an MBA from Columbia Business School.

Panama Bartholomy

Panama Bartholomy

Panama is the Director of the Building Decarbonization Coalition, a multi-sector forum advocating for and creating solutions for our pollution-intensive building stock. Previously, Panama was the European Director of the Investor Confidence Project where he worked to unlock capital markets for energy efficiency project development. Panama was the Advisor on Energy and Natural Resources to California Assembly Speaker John A. Perez. He has served as Deputy Director of the California Energy Commission’s Efficiency and Renewables Division and advisor for Chairwomen Douglas and Pfannenstiel. He has worked for the California Conservation Corps on vocational environmental education, and ran the Sustainable Schools program for the Division of the State Architect. Panama served on the City of Sacramento Planning Commission and the County of Sacramento Environmental Commission, and is a former board member on the U.S. Green Building Council (USGBC) and past president of the Northern California Chapter of the USGBC. He has worked on climate solutions in over 30 countries, presented at and collaborated on products from the United Nations, the International Energy Agency and the European Commission.