Centro tecnológico Cartif

Supports for solar panels

The Structural Design Area has a lot of activity in the field of supports for solar panels, both thermal and photovoltaic.

A large number of projects involving supports for solar panels has been done with several configurations, adapting them to the customer needs and requirements with regard to the type (fixed or with tracking, both on ground and roofs), size, versatility, manufacturing processes, transport, assembly, durability, etc.

As it is well known, from the energy point of view, important and significant improvements can be achieved by tracking the sun both in elevation (height of the sun above the horizon) and direction (east-west or azimuth). Theoretically, two axis are needed to complete the track, even though simplifications are possible. Thus different denominations of trackers arise, such as "two axis", "azimuthal", "polar", etc.

The main types of structures we have worked -and are working- on are the following:

Fixed structures and carports: the paneled surface does not have any movement. Ease of manufacturing and assembly with minimal maintenance.

Azimuthal solar trackers: the panels are placed in a single or multiple surfaces with a proper inclination (elevation angle). Rotation around a vertical axis.

Polar solar trackers: the paneled surface is inclined (elevation angle) and properly oriented. Rotation around an axis included in that surface.

Two axis solar trackers: using two motorizations, one for each movement (elevation and orientation). Maximum energy efficiency.

Two axis -one drive- solar trackers: the surface has two tracking movements linked. Great energy efficiency with a single actuator.


Using the most advanced tools in the fields of design and computer aided engineering (CAD, CAE) the structures are designed and developed up to optimization, thus achieving a differentiated product that satisfies technical requirements of both the regulations and the customer.
In addition to technical reports and certifications, the construction of the prototype is supervised and the implementation is carried out. If necessary, changes or variants are proposed or a range is defined in terms of size, engines, control systems, etc.

Thanks to the experience of the R+D+i staff of CARTIF and its application in the field of industry we have given service to a large number of companies innovating in issues related to foundations and anchors, reconfigurable joints, use of high strength steel and structural aluminium, aeroelastic vibration suppression, advanced control, etc. As a result, most of the products developed are protected by Patents and Utility Models, own or shared with the client.