Pressure equalization between upper and lower surfaces of PV modules of an array of PV modules can be enhanced in several ways. Air gaps opening into the air volume, defined between the PV modules and the support surface, should be provided between adjacent PV modules and along the periphery of the array. The ratio of this air volume to the total area of the air gaps should be minimized. Peripheral wind deflectors should be used to minimize aerodynamic drag forces on the PV modules. The time to equalize pressure between the upper and lower surfaces of the PV modules should be maintained below, for example, 10-20 milliseconds. The displacement created by wind gusts should be limited to, for example, 2-5 millimeters or less. For inclined PV modules, rear air deflectors are advised for each PV module and side air deflectors are advised for the periphery of the array.

The invention relates to a mounting device (1), in particular flat roof or open space mounting system, for surface elements, preferably photovoltaic or solar thermal modules, having a ground contact element (2) which preferably also serves to accommodate ballast weights and having a fixing bracket (3) which is connectable to the ground contact element (2) and comprises or is able to receive fixing elements (4), in particular clips, at an end facing away from the ground contact element (2), said fixing elements (4) serving to fix the surface elements (16), wherein it is provided that the connection between the ground contact element (2) and the fixing bracket (3) is detachable.

Disclosed herein is a solar array column cap that includes a body having an opening extending along a center axis from a bottom to a top, the opening configured to receive the vertical column such that the body surrounds the vertical column. The solar array column cap further includes an upper support surface configured to receive a horizontal beam, the upper support surface being located in a plane that is visibly non-perpendicular with the center axis.

An absorber system solves problems of known absorber systems for use in solar fields in that the absorber tube is suspended on a rail below an absorber cover. The design also makes it possible to move measuring and cleaning robots and the like along the absorber tube more and allows the absorber tube and the secondary reflector to be jointly suspended, whereby an exact mutual alignment between the two components is enabled.

A novel solar panel mounting system including a strap and one or more supports, having top flanges, attached to each other. The strap is attached between a first point and a second point on a surface. The support is designed to support a solar panel on this surface. The top flange of the support may be parallel to or at an angle to the surface. The strap may be singular or comprised of two straps one above the other. The strap may be attached to the top flange or the bottom or both. The supports may have any cross sectional shape. The strap may be attached to the support at its end or at a distance from the end; or normal to the support or at an angle to it. The length of the support is greater than the width of the strap.