PHOTOVOLTAIC IN PRICIPLE

1. Photovoltaic cell

By the correct manufacture process and connection of photovoltaic cells and installation of a protective glass together creates a photovoltaic panel of a capacity of about 130 to 160 Wp/m2. Wp is the peak performance under ideal conditions (light intensity of 1000 W/m2 falls vertically on to the panel at a temperature of 25 ° C).

The quantity of gained energy depends on these factors:

• the production technology of PV panels (efficiency)
• the intensity of incident light (site)
• on the area the light falls on (direct-proportional)

MONOCRYSTALLINE PANELS

• Ideal for pitched roofs with south orientation of  + 5-10 ° and for double-axis positioning units- so called trackers. It has a maximum output per m²
• They must be oriented to the South and not shaded.
• Black color

POLYCRYSTALLINE PANELS

• they can be used on  roof systems as well as  on  the land
• slightly larger area than with mono panels is needed.
• they can be oriented in different directions than to the south (SE, E, W), since they can transform even diffused radiation
• dark blue color

THIN FILM AND CI-S PANELS

• Ideal for power plants, which are not restricted by the area of land
• Lower costs
• The highest performance per installed watt with diffused light incidence – ideal for a roof with not good directional orientation and territories with frequent cloudy weather
• Twice the area is needed for the installation than with Crystaline modules.
• Red-brown color

2. PHOTOVOLTAIC POWER PLANT

Photovoltaic power plant is a cluster of small or large number of solar panels mounted on a fixed or rotating structure connected to an inverter, which passes alternating current to the switchboard of house, or company via a Green bonus measuring device and further either to appliances, or to the network NN. A solar power plant can be built on the roof of a family house, factory building or on the open land