Abstract

Silicon solar arrays have provided the energy source for virtually all space satellites with orbital lifetimes greater than 30 days. The first experimental solar panels were orbited in 1958 and as early as 1961 large area solar arrays providing up to 1 kilowatt were qualified and used on classified programs. This paper will review the large area solar array development progress at Lockheed including the 100 kilowatt space station solar array and provide an up to date progress report on the newest United States large area lightweight solar array which is being developed for the NASA Solar Electric Propulsion (SEP) Spacecraft. The 25 kilowatt SEP solar array is approximately 4 meters wide and 65 meters long.

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