Mike Hall

Billy Christie

Director of Engineering

Mr. Billy Christie is a Director of Engineering for Borrego’s western EPC division and is based out of the company’s corporate headquarters in San Diego, California. Billy leads a project engineering team that is responsible for taking an early stage project from our development team and driving it to a permitted planset. Once our operations team has a building permit in-hand, Billy’s team works to provide engineering support for the project during construction and installation until it has received permission to operate (PTO) from the utility. Since joining the Borrego Solar team in 2016, Billy has worked his way from the individual contributor level to his current, wider-reaching position. Billy has been in the solar industry since 2014, and worked previously for SolarCity as a PV Designer and Team Lead. Billy earned a Bachelor’s of Science degree in Mechanical Engineering from Binghamton University, New York.