Abstract: A solar collector comprising a wide-angle, nonimaging asymmetric optical reflector comprising a reflective film, an absorber assembly positioned within the optical reflector having a transparent tube evacuated to a vacuum or partial vacuum and at least two pipes with fluid flowing through the pipes, the pipes arranged in a flow-through configuration, wherein the solar acceptance angle of the collector is about 40 degrees, allowing for passive (stationary) solar tracking, and where the solar energy collected is transferred to the fluid in the form of heat. The fluid exiting the solar collector is in the range of 100° C. to 250° C., and the thermal energy of the fluid may be used to generate high-quality steam for solar industrial process heat applications.