Whammo! Point goes to nps.
Seriously? In space there is ALWAYS sunlight there is no pesky planet to block it once every rotation. In intersolar space all the way out to the orbit of Jupiter the solar flux would be more than sufficient to say put in a window in the side of the space ship and point that opening towards the giant thermonuclear ball of fusion in the center of our system. farther out mirrors could be put outside the ship to concentrate the light towards the windows given that there is not drag in space a large mirror can be very light and very very big for little mass. Some earth orbiting geosync birds have folded light weight antennas that are over 18 meters in diameter coating that parabolic dish with 2 microinches of say aluminum and you have a mirror that in Earth space would vaporize steel at its focal point a better idea would be point that at a fiberoptic cable bundle and distribute the light to the photobioreactors you could even filter out green light as plants only care about red and blue for growth. filter the IR out as well to control the heat in the bioreactors.