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.
About ESS Inc.
At ESS (NYSE: GWH), our mission is to accelerate global decarbonization by providing safe, sustainable, long-duration energy storage that powers people, communities and businesses with clean, renewable energy anytime and anywhere it’s needed. As more renewable energy is added to the grid, long- duration energy storage is essential to providing the reliability and resiliency we need when the sun is not shining and the wind is not blowing.
Our technology uses earth-abundant iron, salt and water to deliver environmentally safe solutions capable of providing up to 12 hours of flexible energy capacity for commercial and utility-scale energy storage applications. Established in 2011, ESS Inc. enables project developers, independent power producers, utilities and other large energy users to deploy reliable, sustainable long-duration energy storage solutions.
Energy Center™ product line launched
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. 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, 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.
Chief Executive Officer
Craig E. Evans
President & Founder
Dr. Julia Song
Chief Technology Officer & Founder
Chief Financial Officer
Chief Accounting Officer
Senior Vice President Business Development & Sales
Dr. Benjamin Heng
Senior Vice President Engineering
Vice President of Information & Business Systems
Vice President of Quality Operations
Vice President of Integrated Supply Chain
Michael R. Niggli
Craig E. Evans
Ms. Alexi Wellman is the Chair of the ESS Board Audit Committee. Ms. Wellman has served as the Chief Executive Officer and Chief Financial and Accounting Officer of Altaba, Inc. since January 1, 2022. She was Vice President, Finance and ultimately Vice President, Global Controller of Yahoo Inc. from November 2013 to June 2017, and Chief Financial Officer of Nebraska Book Company from December 2011 to June 2013. Prior to her role with Nebraska Book Company, she was a practicing certified public accountant with KPMG LLP for 18 years, over seven years of which she served as an audit partner. Ms. Wellman currently serves on the Board of Directors and is an audit committee and compensation committee member of Werner Enterprise, Inc. (NASDAQ: WERN) and Bilander Acquisition Corp (NASDAQ:TWCB). Previously, she served on the Board of Directors of numerous companies including Endurance International Group, Inc., Yahoo Japan, TWC Tech Holdings II Corp., and Nebula Caravel Acquisition Corp. Ms. Wellman holds a BS in Accounting & Business Management from the University of Nebraska at Kearney.