Jeff Ruppert, P.E.

Jeff Ruppert, P.E. / Chief Executive Officer

Jeff is a founder of SEIPS and SEIE and started with SEIPS in January of 2015. He acts as the Business Manager for both entities, and as the Owner and registered Professional Engineer at SEIE for licensure purposes across the U.S. His responsibilities include business development, negotiating and executing contracts, resolving legal issues, reporting to the SEI Board of Directors, and oversight of many administrative tasks, IT systems development, marketing, and of course engineering. Jeff received his Bachelors of Science in Civil Engineering degree from California State University, Fresno in 1993. He has been self-employed in various companies since 1996 when he ventured away from his first job at a consulting engineering firm in Boulder, Colorado to partner with local builders to form a company focused on straw bale construction. From 1996 to the present he has been part or full owner of three design and construction companies, one of which still exists solely as a consulting engineering firm, Odisea LLC, in Paonia, Colorado.
Joe Villacci

Joe Villacci / Chief Operating Officer

Joe is one of the founders of SEIPS and SEIE, and now works as Technical Manager. He specializes in project management, system design, installation methods, and performance verification of solar electric systems. Joe has provided technical services for PV businesses and PV system owners for over a decade. He has held numerous positions in the industry and brings his years of experience into the daily operations of SEIPS and SEIE. Joe’s primary responsibilities include oversight of project managers and contactors by providing technical and logistical support during the execution of projects. He is directly involved with developing and negotiating contract terms with clients, budgeting, and business development. He performs system design work, is proficient in AutoCAD, and independently manages select SEIE projects. Additionally, Joe continues to work on a part-time basis as a PV technical trainer and curriculum developer for Solar Energy International. His position on SEI’s PV curriculum team allows him to be closely involved with the creation and revision cycles of SEI’s course content for both grid-direct and battery-based PV classes.