Gridworks’ mission is to convene, educate and empower stakeholders working to decarbonize electricity grids.

The decarbonization of our economy is within our reach, and it is now more important than ever. We strive to ensure a clean and renewable energy future that provides economic opportunity and a more equitable, sustainable and affordable future for all. We do this by bringing together stakeholders to tackle the most challenging issues in clean and renewable energy.

Review our Frequently Asked Questions to learn more. 

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Matthew TisdaleExecutive Director

Matthew Tisdale

Executive Director

Matthew Tisdale is the Executive Director of Gridworks, leading Gridworks strategy, administration, expert facilitation and consulting services. Matthew has practiced clean energy policy since 2008 and facilitation since 2017. Prior to Gridworks, Matthew served as a Senior Energy Advisor to the California Public Utilities Commission contributing to California’s clean energy leadership. He holds a Master’s in Public Administration and a Bachelor’s in Philosophy, both from The George Washington University. Matthew lives in Alameda, California with his amazing family and six chickens.

Katie WuDirector

Katie Wu


Katie Wu is an environmental professional with nine years of experience in environmental and energy work.  She was formerly a Regulatory Analyst and Supervisor in Energy Efficiency at the California Public Utilities Commission. Her work there covered cost-effectiveness analysis, energy savings forecasting, utility shareholder incentives, and integrated distributed energy resource policy issues.  Prior to the CPUC, Katie worked in CEQA and Superfund enforcement in California.  She holds a Master of Public Administration from Columbia University’s School of International and Public Affairs and a Bachelor of Science in Ecology and Evolution from UC San Diego.

Mike FlorioSenior Fellow

Mike Florio

Senior Fellow

Mike Florio is a former Commissioner of the California Public Utilities Commission (2011-2016). Prior to this appointment, Commissioner Florio was a senior attorney at The Utility Reform Network, and served in that capacity since 1978. Commissioner Florio is a member of California Conference of Public Utility Counsel. He was also a member of the board of governors of the California Independent System Operator from 1997 to 2005. Commissioner Florio holds a J.D. from New York University School of Law, a M.P.A. from the Woodrow Wilson School at Princeton University and a B.A. from Bowling Green State University.

Eric MartinotSenior Fellow

Eric Martinot

Senior Fellow

Eric Martinot is a leading global thought-leader, speaker, author, and facilitator in the field of renewable and distributed energy—with over 25 years experience in technologies, markets, investments, policies, and business. He directs the Global Initiative for Distributed and Local Energy, has taught at several universities, has worked for research and policy organizations in eight countries (including China and Russia), and was formerly a renewable energy program manager at the World Bank. Many of his 75 publications are considered pioneering, notably the REN21 Renewables Global Status Report, which since 2005 has become an annual and widely-used source for millions. He holds a degree in Electrical Engineering from M.I.T. and a PhD in Energy and Resources from UC Berkeley.

Arthur HaubenstockSenior Fellow

Arthur Haubenstock

Senior Fellow

Arthur Haubenstock brings over three decades of experience in energy and environmental law and policy, with a focus on the transition to a clean energy future. He has contributed to several major renewable energy planning and market initiatives, including California’s renewables portfolio standard; negotiated and obtained regulatory approval for first-of-their kind solar and storage contracts; secured precedent-setting energy and environmental permits; testified before Congress, state legislatures and regulatory commissions, and in trade disputes; and cleared obstacles to multi-billion dollar project financing. He has also led nationally significant environmental enforcement actions, including the clean-up of the Bolsa Chica wetlands, which enabled its restoration as a key avian stopover along the Pacific Flyway. Arthur has taught energy, environmental and negotiations law at Berkeley Law, Golden Gate University Law, and Hastings Law, and is a frequent guest lecturer and speaker. He has served on the boards of several clean energy organizations, including leadership roles as President of the Large-scale Solar Association and Chair of the Solar Energy Industries Association’s Utility-Scale Power Division, and currently serves on the Center for Energy Efficiency & Renewables Technology (CEERT) board, as well as on the board of the Del Sol Performing Arts Organization.

Rebecca LeeEquity Fellow

Rebecca Lee

Equity Fellow

Rebecca Lee has more than two decades of experience as an educator and facilitator in social equity, human rights and the environment. She began her work in clean energy policy leading the regulatory team at Sungevity, a residential solar developer. She currently convenes discussions with regulators, policymakers and cleantech business leaders to advance California’s decarbonization goals. Prior to her work in clean energy, she was a professor and academic researcher specializing in the intersection of race, class and gender in politics and culture. During her tenure, she partnered with community-based organizations to improve college access and success for low income and underrepresented groups. She also mentored student-led initiatives focused on racial and environmental justice. She holds a Ph.D. from Cornell University and a B.A. from Wellesley College.

Deborah ShieldsOperations and Communications Director

Deborah Shields

Operations and Communications Director

Deborah is Gridworks Operations and Communications Director managing all financial, administrative and communications functions for Gridworks bringing significant experience in overseeing large projects and leading process improvements for a variety of organizations.  Prior to her current position, Deborah was brand engagement manager at Current TV in San Francisco. She has extensive experience in advertising, sales and marketing with such organizations as FOX Broadcasting Co., New Line Cinema and 20th Century Fox Studios in Los Angeles. Deborah holds a bachelor’s degree in fine arts from the University of California, San Diego.

Hector TaveraDistribution Grid Analyst

Hector Tavera

Distribution Grid Analyst

Hector is a graduate student from the University of San Francisco’s Energy Systems Management program. He will be acting as a Grid Analyst at Gridworks while he finishes his studies. His work will focus on understanding the impact of decarbonization measures on the grid. He holds a BA in Electrical Engineering from Universidad Central de Venezuela. Hector has experience in distribution and protections systems, electric residential design and implementation. His graduate work focusses mainly on the infrastructural frame needed to enable electrification.

Rehana AzizProject Manager

Rehana Aziz

Project Manager

After graduating from the National University of Science and Technology (NUST) Islamabad, Rehana discovered her passion for the energy sector, amid the peak of the energy shortfall crisis in Pakistan. Previously she worked at REON Energy Pakistan as Solar PV Product Manager and gained 7+ years of experience in the Solar PV industry, including system design, cost estimations and product development for residential, industrial and commercial PV solutions. With her passion for creating equal opportunity for men & women in the renewable energy sector, she has launched “SHE in Energy” & “Solar for HER”. Rehana started the Energy Systems Management program at University of San Francisco under the Fulbright scholarship. To her, working in the energy sector is not only important for her personal career path but also essential to serve the planet and establish a safer environment.


Tony Brunello


Tony Brunello founded Gridworks in 2010 to help policy-makers tackle the most difficult issues in decarbonizing electricity grids.  Gridworks helps utility commissions, electric utilities, policy advocates and others identify solutions to challenging grid issues, develop solutions and make them operational in practice.  Tony, a former top energy official in California, has worked on energy and environmental issues at the state, national, and international level for the past 20 years for industry, government and nonprofit organizations.  Tony is also a Partner at California Strategies, one of California’s largest strategic policy consulting firms.   Tony has a Master’s degree in Environmental and Resource Economics from University College London and undergraduate degree in Environmental Studies and Economics from the University of California, Santa Barbara.  He lives in Oakland with his wife and two daughters.

Manal Yamout


Manal is a Partner at Caliber Strategies, a boutique consulting firm focused on bringing disruptive energy technologies to market. Previously, Manal co-founded and was Senior Vice President of Policy and Markets for AMS, a leading distributed energy storage and software company. She served as Director of Government Affairs for NextEra Energy/Florida, Power & Light—the country’s largest clean energy company. Prior to this, she served as renewable energy advisor to both California Governors Brown and Schwarzenegger. Manal jointly coordinated California’s effort to bring the state closer to its goal of providing at least 33% of electricity from renewables and worked to streamline permitting for tens of billions in in-state investment and ultimately 16,000 megawatts of electricity. In addition, she helped lay the foundation for Governor Brown’s energy program to develop 12,000 megawatts of distributed power in California. Prior to this, Manal served as California’s Assistant Secretary for International Trade, Special Assistant to First Lady Maria Shriver and as an Executive Fellow in the Office of the Governor. Manal holds a Masters Degree in Public Administration from the University of Southern California and a degree in Biology from CSU San Marcos.

Audrey Lee

At Sunrun Audrey deploys and aggregates home solar, batteries, and other energy services to serve residential customers, utilities, and grid operators in creating a more affordable, clean, reliable electricity grid. Previously, Audrey was VP of Analytics & Design at Advanced Microgrid Solutions and led policy and analysis at the CA Public Utilities Commission President’s office. She holds a Ph.D. in electrical engineering from Princeton University. Audrey and her team at Sunrun were recently recognized by Utility Dive as the “Disruptor of the Year.”

Anthony Eggert

Anthony Eggert is a director at ClimateWorks Foundation which mobilizes philanthropy to solve the climate crisis and ensure a prosperous future. Anthony comes to ClimateWorks with 20 years of public and private sector experience working on clean energy technologies and policies. Prior to ClimateWorks, Anthony served as the founding director of the UC Davis Policy Institute for Energy, Environment and the Economy dedicated to leveraging university expertise to inform better policy. Anthony public sector experience includes serving as an appointee of Governors Jerry Brown and Arnold Schwarzenegger including as Senior Advisor to the Chair of the California Air Resources Board, Commissioner of the California Energy Commission and Deputy Secretary of California Environmental Protection Agency where he helped implement California’s landmark clean energy and climate policies. Anthony’s started his career as an automotive engineer and program manager at Ford Motor Company working on regulatory compliance and advanced vehicle technology development. Anthony received a bachelor degree in mechanical engineering at University of Wisconsin-Madison and master degree in transportation technology and policy at UC Davis.

Todd Achilles

Todd Achilles is the President & CEO of Edge Networks, Inc. Todd has spent his career in product, engineering, marketing and sales roles within the tech and telecom sectors. Previously, Todd was VP/GM for Consumer Mobility at Hewlett-Packard where he led the worldwide business unit as well as HP’s global connectivity initiatives. At HTC, Todd was employee #2 and led the Americas region where he grew the smartphone leader to over a billion dollars in revenue. At T-Mobile, Todd led the product management team and was responsible for a $2B devices portfolio and 16M mobile devices per year. Todd also serves as a principal at Xanthus Energy Partners, which applies next generation connectivity to make energy demand more responsive.

A former U.S. Army tank officer, Todd holds two U.S. patents and is an American Marshall Memorial Fellow. He is board vice chair of City Year San Jose/Silicon Valley, an education-focused nonprofit that unites young people for a year of public service in under-resourced schools. Todd received his BA from Claremont McKenna College, his MBA and MAIS from the University of Washington, and MPA from the Goldman School of Public Policy at UC Berkeley where he also serves as a lecturer. Todd lives in Ketchum, Idaho with is wife and two kids.


Lorenzo Kristov

Lorenzo Kristov until recently was a Principal at CAISO for Market and Infrastructure Policy. He developed CAISO’s policy in the areas of market design, transmission planning, new generator interconnection, and integration of distributed energy resources. During the industry restructuring of the 1990s he worked at the California Energy Commission developing the rules for retail direct access, and before that he was a Fulbright Scholar in Indonesia working on a commercial and regulatory framework for direct foreign investment in power generation.

Merrian Borgeson

Merrian Borgeson is a Senior Scientist for NRDC.  She champions stronger climate policies by providing analysis and strategic guidance to help us shift to efficient, renewable energy. She works closely with policymakers and stakeholders at the state, regional and national levels. Prior to joining NRDC, she worked as a team leader at Lawrence Berkeley National Laboratory. She also served as the first director of the Sustainable Business Network of Greater Philadelphia and as the managing director (and later the board chair) of the Business Alliance for Local Living Economies.

Borgeson is currently a trustee for the Goggio Family Foundation and sits on the advisory boards of the Schumacher Center for New Economics. She holds a bachelor’s degree from Stanford University, a master’s from the University of California, Berkeley, Energy and Resources Group; and an MBA from Berkeley’s Haas School of Business. She is based in San Francisco.

Caroline Choi

Caroline Choi is senior vice president of Regulatory Affairs for Southern California Edison (SCE).  In this role, she is responsible for the Company’s regulatory strategy and policy at the national and state levels, including regulatory affairs, regulatory operations and environmental affairs.

Choi previously served as vice president of Energy and Environmental Policy, where she oversaw the analysis of energy and environmental policies; development of a long-term environmental, energy and technology strategy for SCE; and management of regulatory efforts at the California Public Utilities Commission and other state energy and environmental agencies.

Prior to joining SCE in 2012, Choi was executive director of Environmental Services & Strategy at Progress Energy, where she was responsible for leading environmental permitting, compliance and policy. She served the company in various roles, including director, Energy Policy & Strategy, and manager, Federal Public Affairs.

Choi is active in national policy and community engagement, where she serves as Chairman of the Board of the Smart Electric Power Alliance, a nationwide organization that supports utilities in the implementation and deployment of clean energy and distributed resources. She also serves as a board member of the Asian Pacific Islander American Scholarship Fund and the National Forest Foundation. Choi holds a bachelor’s degree in government from Dartmouth College.