1990-2010, Contact-A, LLC, Managing Director, PV and SWHS projects development and implementation. 2000-2009, SolarEn, LLC. Executive Director. Solar collectors manufacturing, PV, SWHS, biogas, wind monitoring projects development and implementation, consultancy. 1973-1990. Solar Institute, Yerevan, Armenia. Head of laboratory. Concentrating PV study. 1978-1982, Postgraduate study, Moscow, PhD, topic: Concentrating PV power 1962-1967. Yerevan Politechnic Institute,Diploma Electrical Engineer plant