Grid-connected installations and off-grid systems

To promote the use of the renewable energies, the government forces to the electrical companies to buy the electricity proceeding from these sources. The sun, inexhaustible source of energy, can give us the solution to the impending energy crack. The solar photovoltaic panels allow us to capture the energy that detaches the Sun and to transform it into electricity.  

Grid-connected installations. Below is a basic wiring diagram.

Grid-connected installations are formed by solar photovoltaic panels that are capable of turning the solar radiation into electricity. The panels connect between them, up to coming to the inverter of connection to grid, element that transforms the direct current generated by the panels to alternate current, necessary to inject electricity into grid. In last term, there is placed a electricity meter supplied by the electrical company, which will count the contributed energy.

With regard to the off-grid systems, I recommend to go to the Solar Kits where you'll find further explanation.