Issues and opportunities in space photovoltaics

Opportunities for US Air Force and NASA space solar photovoltaics are examined. It is noted that there is a growing interest in lightweight concentrator arrays with high levels of radiation resistance for orbital applications, and in a totally new generation of solar array technology for terrestrial-like applications in a nonterrestrial environment. Also considered is the advanced development of photovoltaic power systems for operation on the Lunar and/or Martian surface. This new scenario makes it possible for the terrestrial thin-film technologies to compete effectively with the high-efficiency solar cell technology that traditionally has been pursued in the space program. It is concluded that present and near-future US Air Force and NASA requirements show needs that, if the problems are looked upon as opportunities, can elevate the photovoltaic power source scientist and array structure engineer into the next technological photovoltaic growth curve.