Solar tracker

Solar power has become a common green technology in use in not only massive utility/commercial solar fields but also are common on the roofs or properties of small businesses and homes. A solar panel is a component in a larger photovoltaic system for commercial and residential use.
The majority of modules use crystalline silicon cells to convert solar energy into electricity but now more often a thin-film with solar cells based on cadmium telluride or silicon. Conversion rates (efficiencies) can vary from 5-18%. Every percentage point increase in efficiency is the goal of millions of dollars of research each year. New designs of modules include concentrator modules much like a satellite dish allowing the use of very expensive materials (such a gallium arsenide) for collection.
One improvement available without the new of new collection materials is the use of solar tracking. Trackers maximize the exposure between the photovoltaic (PV) panel(s) and the incoming light thus increasing the energy produced. Proper choice of a solar tracker can increase the "efficiency" of a PV solar installation by as much as 30%. In all concentrated photovoltaic (CPV) applications, tracking systems are essential because no energy is produced unless the collector is oriented directly toward the sun.

The type of (PV) tracker is defined by several factors. Probably most important are the number (single or dual) and orientation of their axis (axes). Other factors are their method of actuation (linear or worm gear driven), applications, and foundation.
Typically, a single axis tracker's one axis of rotation is aligned with a true North meridian. There are two types of single axis trackers. Horizontal Single Axis Trackers: With respect to the ground, the axis of rotation is horizontal with the panels oriented parallel to the axis of rotation. Consequently, with rotation East to West, tracking sweeps a cylinder.
Vertical Single Axis Trackers: With respect to the ground, the axis of rotation is vertical and rotation is east to west. The face of the module is oriented at an optimal, seasonally adjusted angle (15, 25, 35, 45, 55, or 65 degrees.) relative to the axis of rotation; therefore, a cone is swept at an angle to the ground.
Dual axis trackers have a primary axis that is fixed relative to the ground with a secondary axis normal to the primary. Installation of a Dual-axis Solar Tracker (Azimuth Dual Axis Tracker) removes the need to adjust the array monthly or seasonally to optimize solar performance from morning to evening.

Solar tracker "SunTracer OG+" with backstrcture
Motion axis: 1-Axis
Astronomic tracking algorithm: Yes, but only one axis
Real time clock & date with backup batteries: Included
Supervision and setting: Web monitor
Setting via PC: Included
Monitoring via PC: Included
Controling & driving via PC: Included
Backstructure: long wheel and long arms
Guarantee time: 2 years, optionally 10 years for addtional 30% of price

Price: 178,00 € (VAT 20% is not included in the price.)

Solar tracker motor must be supplied with power from 12 to 69 VDC from external power supply. Suitable for panels on grid, up to 2 m2, for trafic signalisation, street lights, power suplly at cottages or small powerplants where solar panels are connected in serial and output is connected directly to inverter or an external charging device.

Different types of solar power plants:

• Photovoltaic Solar Power plant
• Solar Thermal Power Plant
• Concentrating Power Plant