SEI Professional Services (SEIPS) provides the foremost technical expertise in solar energy to empower people, grow businesses, and influence the global PV industry through best practices. SEIPS has been created to support the mission of Solar Energy International (SEI) while offering world-class services directly to the solar PV industry. By utilizing our instructor staff of established PV system designers, engineers, and NABCEP Certified Installation Professionals™ you are assured that the foremost expertise in the PV industry will be incorporated into your project.