Our long-duration batteries use food-grade, earth-abundant elements including iron, salt, and water.

About

Our Mission

At ESS Inc., our mission is to bring to market the cleanest, lowest-cost long-duration energy storage systems. We are the catalyst for a sustainable energy future.

Our History

Established in 2011, ESS Inc. manufactures low-cost, long-duration iron flow batteries for commercial and utility-scale energy storage applications requiring 6+ hours of flexible energy capacity. Our long-duration energy storage platforms, the Energy Warehouse^™ (EW) and Energy Center^™(EC), use iron, salt, and water for the electrolyte, and deliver an environmentally safe, long-life energy storage solution for the world’s renewable energy infrastructure.

Based in Wilsonville, Oregon, ESS Inc. was founded by a team with deep experience in fuel cells, electrochemistry, advanced material science and renewable energy. After five years of intensive innovation, engineering development and rigorous testing and validation, with the backing of ARPA-E and others, the company began shipping turnkey energy storage solutions that allowed companies and municipalities to control their own energy future in 2015.

Our technology delivers environmental and cost advantages. Specifically, our non-corrosive, non-toxic chemistry enables use of off-the-shelf materials. Its non-flammable composition eliminates costly fire suppression systems. Combined with an innovative cell design, our customers benefit from increased power density and reduced O&M cost over our platform’s 20+ year lifespan.

With its safe, earth-abundant, proven all-iron flow battery technology, ESS is helping project developers, utilities, and EPCs make the transition to more flexible non-lithium-ion storage that is better suited for the grid and the environment.

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Executive Team

Craig E. Evans

President, CEO, & Founder

Mr. Evans is the President, CEO, and a founder of ESS Inc. Having started ESS from his garage in 2011, he led the company to the commercialization of the iron flow battery system in 2016. Prior to ESS Inc., Mr. Evans was the Director of Design & Product Development at ClearEdge Power Inc. His team designed the ClearEdge5, a 5 kW combine-heat-and-power fuel cell system, which was successfully commercialized in 2010. This product received both CSA International certification in North America and KNREC certification in Asia. Mr. Evans began his career at United Technologies Corporation (UTC) where he held technical leadership positions in their Fuel Cell business and, prior to that, as a project engineer in the Pratt & Whitney aircraft engine business. In 2006, Mr. Evans was awarded the distinguished George Mead Award, the highest honor for individual engineering achievement at UTC. Mr. Evans has authored over 15 patents and patent applications. He holds a BS in Aerospace Engineering and an MS in Mechanical Engineering from Clarkson University, an MS in Finance from Rensselaer Polytechnic Institute, and an M.B.A from Carnegie Mellon University.

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Dr. Julia Song

Chief Technology Officer & Founder

Dr. Song, a co-founder of ESS Inc., formally joined ESS in April of 2012 as the Chief Technology Officer. In this position, she has spearheaded the transition of the iron flow battery technology to becoming a commercial energy storage system. Prior to joining ESS Inc., Dr. Song was the Vice President of Research and Development at ClearEdge Power Inc., where she led over 20 cross-functional scientists and engineers on all corporate R&D projects and the commercialization of the 5 kW Combined Heat and Power Fuel Cell system. Dr. Song started her career at Milliken & Co. as an Industrial Research Chemist. Dr. Song has authored approximately 20 peer-reviewed publications and over 10 patents and patent applications. Dr. Song holds a B.S. in Chemistry from Peking University and a Ph.D. in Chemistry from University of North Carolina-Chapel Hill. She specializes in fuel cells, batteries, electrochemistry and the catalysis properties of nanoparticles.

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Amir Moftakhar

Chief Financial Officer

Mr. Moftakhar is the Chief Financial Officer for ESS Inc. Mr. Moftakhar is an accomplished finance executive with experience in energy, banking, technology, real estate, and consumer products specializing in strategy and finance. Mr. Moftakhar has significant corporate experience in finance, business development, strategy, and M&A with companies including Bank of America, Sempra Energy, San Diego Gas and Electric, and Cox Communications. He has been a lecturer and adjunct professor in the areas of economics, finance, statistics, and business, including his latest experience as an Adjunct Professor of Finance with the University of San Diego. Mr. Moftakhar received his Bachelor’s of Managerial Economics from the University of California, Davis, his Master’s in Business Administration from the Graziadio School of Business at Pepperdine University, and his Executive Master of Leadership degree from the Price School of Public Policy at the University of Southern California.

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Hugh McDermott

Senior Vice President Business Development & Sales

Mr. McDermott is the Senior Vice President Business Development & Sales for ESS Inc. An energy sector executive focused on growing energy infrastructure and advanced energy technology businesses primarily addressing utility, industrial and commercial sectors, Mr. McDermott has served in numerous executive and leadership roles throughout his career in high-growth start-up companies as well as executive roles in public listed companies. Prior to joining ESS, Inc., Mr. McDermott was the Vice President Sales for Silver Spring Networks where he successfully led the company’s market-building presence and key partnership development for Smart Grid and Smart City business across the APAC region. As Global Head of Business Development at Better Place, Mr. McDermott created the world’s first smart charging commercial offering which leveraged networked electric vehicle charging infrastructure to provide dynamic load management and energy storage services to utilities, grid operators and energy traders. Mr. McDermott is a Hokie from VA Tech where he earned his BS in Mechanical Engineering in Power Systems.

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Brian Lisiecki

Vice President of Information & Business Systems

Mr. Lisiecki is the Vice President of Information & Business systems for ESS Inc. He has led the initiative to standardize cross functional business process, including enabling Oracle ERP to provide scalability and better decision insights. Prior to joining ESS Inc., Mr. Lisiecki spent 19 years at the Campbell Soup Company in various technology and finance leadership roles. These roles included Business Intelligence, SAP, Business Acquisition Integrations, Global FP&A and Financial Consolidation. Mr. Lisiecki holds a B.S. in Management Information Systems from Clarkson University and a M.S. in Management Information Systems from Pennsylvania State University.

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Matt Berkebile

Vice President of Manufacturing & Operations

Mr. Berkebile is the Vice President of Manufacturing & Operations for ESS Inc. Mr. Berkebile brings deep technical and operational background in engineering, R&D, product design, and manufacture of advanced technologies in the power generation and aviation sectors. Mr. Berkebile specializes in startup and acquisition restructuring, optimization, and operational growth and his experience includes serving in global and executive leadership roles in both public and privately-held companies including General Electric and Mitsubishi Hitachi Power Systems. Mr. Berkebile has authored over 10 patents and patent applications and holds a BS in Mechanical Engineering from University of South Florida. He is a veteran of the US Navy where he served 5 years as an Aircrew Search and Rescue Swimmer.

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Directors

Michael R. Niggli, Chairman

Mr. Michael R. Niggli brings to the ESS board a wealth of utility industry management experience. He most recently served as President and Chief Operating Officer at San Diego Gas & Electric Co. (SDG&E) until December 2013 and currently serves on the boards of several energy-related companies. Since beginning his career at SDG&E in 1971, Mr. Niggli held many positions within the electricity and gas operations, fuels acquisition, project management and customer service operations of SDG&E. Prior to rejoining SDG&E in 2006, Mr. Niggli served in positions with Entergy Corp., Nevada Power Company, Sierra Pacific Resources and Sempra Energy. Mr. Niggli has been closely involved in business and education partnerships in San Diego, New Orleans and Las Vegas. He served as Chairman of Sierra Pacific Power Company and Nevada Power Co. since July 1999. He served as a Director of San Diego Gas & Electric Company since December 7, 2012; Member of the Board of Directors of Esval S.A. since March 2015 and ESSBIO S.A. since March 2015. Mr. Niggli served as a Director of San Diego Gas & Electric Company and Southern California Gas Co. since February 23, 2007. He served as a Director of Pacific Enterprises Inc. from February 23, 2007, to April 3, 2010. He also has served on the boards of the Central Arkansas Radiation Institute, United Way of Southern Nevada, Great Basin National Park Foundation, UNLV Foundation, Electric Power Research Institute, Edison Electric Institute and the Nevada Development Authority. Mr. Niggli has authored at least a dozen articles on issues pertinent to the electric, gas and telecommunications industries. He has provided expert testimony on electric and gas utility matters before numerous legislative committees, public service commissions and city councils at the federal, state and local levels. He founded the graduate program in power engineering at San Diego State University and lectured part-time for five years. Mr. Niggli holds a Bachelor’s degree in Electrical Engineering from California State University in Long Beach and a Master’s Degree in Electrical Engineering from San Diego State University. Mr. Niggli participated in the Advanced Management Program at Harvard Business School.

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Craig Evans

Mr. Craig Evans is the President, CEO, and a founder of ESS Inc. Having started the company from his garage in 2011, he led the company to the commercialization of the iron flow battery system in 2016. Prior to ESS Inc., Mr. Evans was the Director of Design & Product Development at ClearEdge Power Inc. His team designed the ClearEdge5, a 5kW combine-heat-and-power fuel cell system, which was successfully commercialized in 2010. This product received both CSA International certification in North America and KNREC certification in Asia. Mr. Evans began his career at United Technologies Corporation (UTC) where he held technical leadership positions in their Fuel Cell business and, prior to that, as a project engineer in the Pratt & Whitney aircraft engine business. In 2006, Mr. Evans was awarded the distinguished Georg Mead Award, the highest honor for individual engineering achievement at UTC. Mr. Evans has authored over 15 patents and patent applications. He holds a BS in Aerospace Engineering and a MS in Mechanical Engineering from Clarkson University, a MS in Finance from Rensselaer Polytechnic Institute and a M.B.A from Carnegie Mellon University.

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Raffi Garabedian

Mr. Raffi Garabedian was the Chief Technology Officer of First Solar, Inc. from 2012 through 2020. Mr. Garabedian joined First Solar in 2008. Before joining First Solar, he founded Touchdown Technologies, Inc. and served as its Chief Executive Officer. He worked in the semiconductor and microelectromechanical systems (MEMS) industries for over 15 years, developing and manufacturing new technology products ranging from automotive sensors to telecommunications switching systems. He holds over 20 issued patents and has deep experience in strategy, product development, engineering, manufacturing technology, management and team building. Mr. Garabedian holds a BS in Electrical Engineering from Rensselaer Polytechnic University and an M.S. degree in Electrical Engineering from the University of California at Davis.

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Rich Hossfeld

Mr. Rich Hossfeld is SVP of Strategy and Investments at SoftBank Energy. Rich is an entrepreneurial and thesis driven investor and business executive, with expertise identifying emerging market and technology opportunities, building and executing business plans and commercial strategies for start-up through Fortune 500 companies, developing markets and conducting business in both emerging and developed markets, building infrastructure businesses to accelerate product sales and profitability, removing regulatory barriers to market expansion and launching new products.

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Shirley Speakman

Ms. Shirley Speakman joined Cycle Capital as a Partner and is based in the Toronto office. Shirley was the Director of Investments for the MaRS Investment Accelerator Fund (IAF) a $40M+ venture capital fund established by the Ontario government to invest in seed and early stage technology oriented companies based in Ontario. As Director of Investments, Shirley was responsible for investment recommendations and decisions, portfolio management, sourcing and partnering. Shirley continues to contribute to the MaRS Investment Accelerator Fund as an advisor on its cleantech investment committee. During her tenure at IAF, she oversaw investments in cleantech, successfully exited investments and assisted portfolio companies secure signficiant follow-on financing. Prior to joining the IAF, Shirley spent over 12 years acting as advising biotech, ag-biotech and advanced manufacturing and materials companies in areas such as strategy, finance, negotiations and fund raising. She spearheaded numerous financings and M&A transactions and participated in the creation of a $40M cross border life sciences fund and the close of a Canadian based $40M ag-biotech fund. Shirley holds her ICD.d (University of Toronto), a MBA from Wilfrid Laurier University and a Bachelor of Economics from the University of Waterloo.

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Kyle Teamey

Mr. Kyle Teamey is an investor with Breakthrough Energy Ventures (BEV) and has spent most of his career developing companies and technologies. Prior to joining BEV, Kyle was an investor with In-Q-Tel (IQT). Kyle developed IQT’s Industry 4.0 investment theme, which encompassed manufacturing, logistics, energy, and materials. While at IQT, he also served as an Executive in Residence for Columbia Technology Ventures. Before IQT, Kyle was an entrepreneur with companies and funds to include Liquid Light (CO2 utilization), Redpoint Ventures, Switch (energy projects), and Dunia Frontier Consultants (international finance). Kyle was the product lead for TiGR situational awareness software while at DARPA, which spun out as Ascend Intel and was acquired by Lockheed Martin. He also served on active duty in the U.S. Army. Kyle holds a B.A. in Environmental Engineering from Dartmouth College, a M.A. in International Finance and Energy Policy from Johns Hopkins University School of Advanced International Studies, and a M.S. in Materials Science from Columbia University.

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Daryl Wilson

Mr. Daryl Wilson is a versatile leader with more than 35 years of progressive industrial management experience in environmental technology, operations, manufacturing, human resources, product development, and organisational change developed in world class organisations, including Dofasco, Toyota, and ZenonEnvironmental. For the last 14 years, Daryl Wilson served as CEO of Hydrogenics, a publicly listed leading provider of advanced hydrogen solutions. Mr. Wilson also served on the board of ATS Automation for 10 years and is a certified corporate director.

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