Patent ID: 8119963

Claim:
A dual-axis solar tracking system comprising: a first array, comprising: a first plurality of photovoltaic solar collecting panels (PV panels) configured to receive solar radiation; a first upper rail and a first lower rail extending substantially parallel to one another and between which the first plurality of PV panels are each rotatably mounted about X axes that are substantially parallel to one another, and substantially perpendicular to the first upper rail and the first lower rail, and configured to be substantially perpendicular to the solar radiation; wherein the first upper rail and the first lower rail each comprise substantially free and oppositely disposed endpoints and are not coupled to each other at their respective endpoints; a second array, comprising: a second plurality of PV panels configured to receive solar radiation; a second upper rail and a second lower rail extending substantially parallel to one another and between which the second plurality of PV panels are each rotatably mounted about X axes that are substantially parallel to one another, and substantially perpendicular to the second upper rail and the second lower rail, and configured to be substantially perpendicular to the solar radiation; wherein the second upper rail and the second lower rail each comprise substantially free and oppositely disposed endpoints and are not coupled to each other at their respective endpoints; and at least one upper connector coupling together adjacent endpoints of the first and second upper rails, and at least one lower connector coupling together adjacent endpoints of the first and second lower rails, so that two or more arrays are joined together to provide a scaleable assembly.