William Mao

Chief Commercial Officer

A seasoned energy and electrical industry leader, Will Mao joined Eos in July of 2022 as the organization’s CCO. His vast experience leading power transformer and green substation product launches is an asset for propelling Eos toward continued commercial success. Before Joining Eos, Will served in leadership roles with major electricity and energy firms, including VP of Sales & Marketing with Hitachi Energy and Global VP with Hitachi ABB Power Grids. He was also head of the ABB US Oil, Gas & Petrochemicals business unit and served as a senior manager for electrical equipment manufacturer Powell Industries’ (NASDAQ: POWL) international business unit. Will started his career with Westinghouse Electric Company.  Will holds an MBA from the University of St. Thomas and Bachelor of Science in Electrical Engineering from Texas A&M University. An enthusiastic advocate for the transition to clean energy and ardent believer in shaping the clean energy future, Will energizes the commercial team in bringing Eos’ revolutionary storage technology to markets around the world.