Development and implementation of unique testing methods for the Solar Probe Plus array

As a “NASA mission to touch the sun” Solar Probe Plus (SPP) reveals challenges previously not encountered in space solar panel design and testing. Simulating flight conditions require new testing methods and equipment which have been specifically developed for this unique PV application. Testing under high intensity, high temperature conditions over large areas poses design and logistic challenges, while testing cell performance degradation to a measurement level error of <;1% involved fabrication of custom LED simulators.