NASA's Photovoltaic Energy Research Plans and Programs

www.nasa.gov National Aeronautics and Space Administration DMFlex - Dust Mitigation on Flexible Solar Arrays NASA NASA Space Technology Mission Directorate - Announcement of Collaboration Opportunity awarded to Maxar Technologies along with GRC to explore lunar dust mitigation methods for vertical, flexible solar arrays Investigating whether vibratory motion and/or electrostatic dust shielding effectively remove deposited lunar simulant on vertical arrays, verify using electroluminescence imaging + image processing Tests performed as a function of illumination, charging level, temperature and angle of solar array Rendition of a lunar lander with vertical solar arrays Regolith is notable for getting kicked up by surface activity and sticking to surfaces; could reduce solar array output 0e+00 G Frequency 2e+05 3e+05 4e+05 1e+05 A) Pristine Solar Cell D) 25 0.00 0.05 0.10 0.15 0.20 0.25 Histogram Gray Scale Pixels 0 5 10 15 20 20 Density Frequency 0e+00 1e+05 2e+05 Зе+05 4e+05 B) Dusted Solar Cell 20 0.00 0.05 0.10 0.15 0.20 0.25 Histogram Gray Scale Pixels 5 Density 55

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