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Liam O'Brien currently serves as an Advisory Board Member at Solar Energy International and a Senior Technical Product Manager for C&I Products at Sol-Ark. As the Founding Engineer and NABCEP Installer at Kilawatt Consulting since August 2018, Liam has specialized in consulting on solar and battery backup systems, supervising field operations, and conducting system analysis and design. Previous roles include Electrical Test/System Integration Engineer at EverCharge, Lead Test/Product Engineer at Fortress Power, and Co-founder of diyhp.co, where Liam authored "Off-Grid Solar Basics." Additional experience encompasses roles at Refuture Ventures Ab, the ESA-NASA ATV-5 Observation Campaign, Berkshire School, and the Guggenheim Museum, demonstrating a strong background in electrical engineering, product development, and cross-disciplinary collaboration.