KEMPER Solar’s new tracker offers higher flexibility and greater choice of module selection

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KEMPER Solar is to present a new tracking system at Intersolar 2011. The KemTRACK two-axis tracking systems has undergone a complete facelift and offers 70-120 square meter module area with improved control and increased stability. Automated robot welding and a reduction in the amount of material used in the fabrication are designed to further reduce costs and prices.

Problem

Against the backdrop of falling subsidies and the constant need to reduce BOS costs while maximizing energy yield from a PV system the need to offer a cost-effective and efficient design of solar systems is increasingly important.

Solution

At the heart of the KemTRACK tracker is a central support tube with built-elevation drive. The further development of the tracker now allows for flexible mounting of modules as the trackers can be both longitudinally and transversely fitted with modules. This leads to a significantly higher flexibility and greater choice with regard to connection concept and selection in number and size of modules. The lower height provides a significantly reduced shading range so that the tracking systems can be operated in more confined spaces or utilized to increase the number of systems deployed. A high degree of freedom from the modules on flat sun angles is also ensured by  so-called backtracking. Each tracking system is equipped with its own control unit so that the correct sun position can be determined and the optimum angle to the sun used. Depending on the location the company claims up to 40% higher current efficiency compared to fixed systems. The integration of the elevation drive into the central support tube enables the tracker to complete the east and west pivot without the azimuthal direction changing. This principle brings major advantages to systems installed in the equatorial regions.

Applications

Ground-mounted medium to large-scale PV power plants.

Platform

A new Internet-based control system that was developed in cooperation with Siemens provides for the tracking of the tracker on an astronomical basis.

Availability

June 2011 onwards.
 

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