Michael Niggli

Michael Robert Niggli is currently Chairman at ESS Tech Subsidiary, Inc. since 2018.
He is Director at Esval SA since 2015, Director at the University of Nevada, Director at Essbio SA since 2015, Director at Southern California Gas Co. since 2007, and Independent Director at Avanea Energy Acquisition Corp.
since 2021.
Former positions include Chairman & Chief Executive Officer at Nevada Power Co. from 1999 to 2000, Chairman & Chief Executive Officer at NV Energy, Inc. from 1999 to 2000, Chairman & Chief Executive Officer at Sierra Pacific Resources in 2000, Chairman at Sierra Pacific Power Co., Chairman at Great Basin National Park Foundation, President, Chief Operating Officer & Director at San Diego Gas & Electric Co. from 2012 to 2013, Chief Operating Officer & Director at Pacific Enterprises, Inc. from 2007 to 2010, Director at Electric Power Research Institute, Inc., Director at University of Nevada, Las Vegas Foundation, Director at Edison Electric Institute, Inc., Director at The National Coal Council, Director at The Las Vegas Global Economic Alliance, Director at United Way of Southern Nevada, Inc., Director at The Electric Power Supply Association, Independent Director at Pacific Gas & Electric Co. from 2020 to 2025, Independent Director at PG&E Corp.
from 2020 to 2025, Independent Director at ESS Tech, Inc. from 2023 to 2026, Director at American Transmission Co. LLC.
from 2015 to 2023, and President at Sempra Generation LLC from 2000 to 2006.
Education includes graduate studies at San Diego State University and undergraduate studies at The California State University.