Self-ballasting solar collector

A solar energy concentrator comprising:

• a receiver configured to receive energy from a solar energy source;
• one or more reflectors comprising an array of mirrors adapted to direct solar energy to the receiver, each mirror of the array of mirrors adapted to rotate about a first center of rotation;
• a frame affixed to the receiver and one or more reflectors, the frame comprising a plurality of footings adapted to frictionally affix the frame to a roof surface without penetrating the roof surface, wherein said concentrator is adapted to be detachably secured to the roof while concurrently maintaining the integrity of the roof, wherein the one or more reflectors are interposed between a positioning plate and the receiver;
• and
• a plurality of reflector positioning arms for operably coupling the array of mirrors to the positioning plate, wherein each of the positioning arms is adapted to rotate relative to the positioning plate about a second center of rotation, the positioning plate adapted to simultaneously aim each of the array of mirrors in a direction substantially bisecting an interior angle between the solar energy source and the receiver,
• wherein a line segment between the first center of rotation and the second center of rotation for each of the plurality of positioning arms is substantially equal to a base of an isosceles triangle having a first leg aligned with a first ray from the source and the a second leg parallel to a second ray to the receiver, wherein the first leg and second leg are equal length.