"With no occlusion, the flat-panel collector is more efficient than the spherica...

		EA on Sept 19, 2019 \| parent \| context \| favorite \| on: Solar and Wind Power So Cheap They’re Outgrowing S... "With no occlusion, the flat-panel collector is more efficient than the spherical-surface collector by a factor of more than 2." "Considering the occlusion factor, the spherical-surface collector can be the better choice in certain situations"