Our Board of Directors
Steering Council members each nominate one voting representative to the Board of Directors
Board of Directors
Simonpietri Enterprises LLC
Joelle Simonpietri is the owner of Simonpietri Enterprises LLC, a Hawaii-based firm providing innovative technical and business consulting services to leading companies in transportation, fuels, waste management, and defense in the U.S., Canada, and Australia. For over a decade, Simonpietri Enterprises has helped its clients to increase their sustainability with technoeconomic analyses, market intelligence, investment due diligence, strategic partnering, and first-of-a-kind project execution. Joelle is a member of the U.S. Federal Aviation Administration’s Aviation Sustainability Center of Excellence at Washington State University and chair of the board of the Hawaii Bioeconomy Trade Association. She previously served in the Department of Defense as an energy innovation director, resulting in milestone events such as the U.S. Navy’s Great Green Fleet demonstrations at the Rim of the Pacific exercises in Hawaii and the Defense Logistics Agency’s ongoing renewable marine diesel procurements. Prior to her move back to Hawaii, she was the energy investment lead of Waste Management Inc’s $250 million Organic Growth Group venture capital fund. She started her career as a U.S. Naval Officer serving in the Asia-Pacific region. Her education includes a bachelor of science in neurobiology from Duke University, and a master’s degree in business administration from the Tuck School of Business at Dartmouth. Joelle has two school-age children who grew up in the Windward O`ahu school district.
Director of Sustainability, Government & Community Affairs
Julie Yunker is the Director of Sustainability, Government & Community Relations at Hawaii Gas focused on the company’s sustainable and clean energy initiatives. She provides strategic direction in leading the company’s Government Affairs and Environmental, Social and Governance (ESG) efforts across the organization. She implemented Hawaii Gas’s first Sustainability Committee that is focused on several initiatives including a greenhouse gas emissions inventory to establish reporting baselines and to support emissions reduction targets. Julie also leads the company’s participation in the Global Real Estate Sustainability Benchmark (GRESB) reporting and the UN Global Compact. She represents Hawaii Gas on local and national organizations and is the previous chair of the Market Leadership Advisory Board for US Green Building Council Hawaii which aims to create a positive impact on the region’s-built environment by accelerating the adoption of green building practices, technologies, policies, and standards. Prior to joining Hawaii Gas, Julie served as the Strategy Officer at the Hawaii State Energy Office (HSEO) , leading a team of individuals committed to advancing Hawaii’s Clean Energy Initiatives through policy development, communications and outreach and international partnerships.
She holds a B.A. in Economics from the University of Georgia and an MBA from San Diego State University. She is also a Certified Energy Manager and a LEED Accredited Professional.