Tracker - sonnen_systems, Inc

By: Sonnen Systeme Projektgesellschaft Mbh  09-12-2011
Keywords: Tracking System

Our dual-axis photovoltaic tracking systems align the solar panels to the optimum angle to the sun for power generation. This process allows the energy usually generated using static photovoltaic panels to be increased by as much as 45%. Optimal alignment is made possible by a precise astronomical control mechanism which can plot the course of the sun from any geographical location at a given time of the year. sonnen_system trackers have repeatedly proven that they can consistently deliver improved levels of photovoltaic power generation in a wide range of conditions.


  • Biaxial tracking system for photovoltaic installations
  • Astronomical control based on local coordinates
  • Centralized monitoring via Internet
  • Comprehensive safety concept: the safeguard
  • Building integration feasible
  • Additional yield up to 45% compared to fixed-mount installations
  • Track-back function to prevent cross-shading
  • 20-year warranty (depending on service agreement)
  • Suitable for all panel brands

Technical Details

Size of panel surface 385 - 485 sq.ft. 495 - 645 sq.ft.
Size of supporting structure 23 × 16.4 ft. 23 × 21 ft.
Max. installation height 66 ft. 66 ft.
Weight 1370 lb. 1480 lb.
Control unit astronomical with RS 485 interface
Steel construction hot-dip galvanized acc. to DIN EN 1461
Azimuth electromechanical slew drive 102 : 1
Elevation electromechanical lifting spindle 225 : 1
Wind alert system operates at wind speed ≥ 29 mph ≥ 29 mph
Type of protection IP 54 / 65 IP 54 / 65
Voltage monitor operates at ≤ 24V / DC ≤ 24V / DC
Uninterruptible power supply 18 - 100 Ah depending on the number of sonnen_systems
Monitoring monitoring system for the entire plant via SMA Sunny WebBox
Capacity of PV generator 5.0 - 6.5 kWp 6.6 - 11.0 kWp
Operating voltage 24V / DC 24V / DC
Nominal power max. 110 W max. 110 W
Angular range azimuth 270° / elevation 70°
Angular accuracy by 0.1° - 0.25°

Performance Chart

Chart: Performance of a sonnen_system tracking unit for 24 hrs vs. performance of a fixed-mount photovoltaic system of the same system size.

Keywords: Tracking System

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