Abstract: A pole mounted dual axis solar tracking apparatus has a main mounting member [13] in a fixed primary north-south axis which is inclined to accommodate geographical latitude and a cross arm [16] fixed to the main mounting member and defining a secondary east-west axis. A support frame [15] for PV panels, solar reflectors etc. is pivoted to the cross arm to enable the support frame to tilt over the secondary east-west axis. The apparatus is highly efficient due to its ability to sweep through the shape of two conjoined cones. The apparatus operates with close to the efficiency of a dual axis tracker but with the simplicity of a single axis tracker.

Abstract: A solar concentrator comprising a transparent optical material including a first light coupling portion having an outer end and an inner end tapered so that it converges from the outer end towards the inner end; a first facet formed at the outer end and arranged to reflect light along the first light coupling portion; a first primary concentrator element arranged to focus light onto the first facet; a second light coupling portion having an outer end and an inner end tapered so that it converges from said outer end towards said inner end; a second facet formed at the outer end of the second light coupling portion and arranged to reflect light along said portion the second facet vertically overlapping the first facet; a second primary concentrator element arranged to focus light onto the second facet; a common light guide portion in optical communication with said inner ends of the first and second light coupling portions and arranged to transmit said radiation therethrough; wherein a greatest vertical thickne

Abstract: A solar concentrator comprising a transparent optical material including a first light coupling portion having an outer end and an inner end tapered so that it converges from the outer end towards the inner end; a first facet formed at the outer and and arranged to reflect light along the first light coupling portion; a first primary concentrator element arranged to focus light onto the first facet; a second light coupling portion having an outer end and an inner end tapered so that it converges from said outer end towards said inner end; a second facet formed at the outer end of the second light coupling portion and arranged to reflect light along said portion the second facet vertically overlapping the first facet; a second primary concentrator element arranged to focus light onto the second facet; a common light guide portion in optical communication with said inner ends of the first and second light coupling portions and arranged to transmit said radiation therethrough; wherein a greatest vertical thickne

Abstract: A solar tracking apparatus comprises an array frame assembly adapted to support at least one solar collecting product, rotation means to enable the array frame assembly to rotate to at least track the sun from east to west over a fixed primary axis of rotation, and adjustment means to enable the array frame assembly to be adjusted relative to the primary axis of rotation to allow for seasonal changes in the sun's elevation and changes in the sun's declination throughout each day.