Off-axis Kohler-XR Solar Concentrator Arrays

ABSTRACT: Light Prescriptions Innovators (LPI) is developing a next generation"Off-axis Kohler-XR Solar Concentrator Array"to satisfy the need for a satellite concentrating photovoltaic (CPV) system with: very large acceptance angle, very efficient electrical generation, light weight, compact stowed configuration, and long life. LPI is a world wide recognized leader in the development of high performance CPV solutions and has developed the highest recorded proof-of-manufacturing systems. The LPI"Off-axis Kohler-XR Solar Concentrator Array"design will have better than 2 degrees acceptance angle, at up to 500X concentration. With its experience in advanced high-reflection coatings and anti-reflection materials, and with the latest in multi-junction cells, the design can achieve up to 40% DC efficiency and 300 watts per kilogram. The satellite design has a very small stowed configuration and can be easily deployed into a full 100kW system. System life is planned for 5 years in Low Earth Orbit (LEO) and 15 years Geosynchronous Earth Orbit (GEO) or Medium Earth Orbit (MEO). BENEFIT: The key benefits of the"Off-axis Kohler-XR Solar Concentrator Array"will be a reasonably priced, reliable, high efficiency, concentrating photovoltaic (CPV) system for use on DOD, NASA, and commercial spacecraft.