A foldable solar cell array (10') with multiple hinged panels, each with a segment of solar cells on a first face of each panel. Maximum power demands are met by employing a shortened outermost panel (20') to minimize mass and inertia of the array. In a folded configuration, power generated from solar cells on the shortened outermost panel (20') are supplemented by power generated from an additional segment of solar cells on a second face of the panel adjacent to the outermost one.