The
production of electricity from photovoltaic systems able to reduce or
clear own consumption and / or exchanging the energy produced, to sell
surplus energy to the grid.
To
take advantage from investment, must to identify the characteristics of
the system best suited to their needs, should consider some background
information:
1) the average annual consumption [kWh / year];
2) the daily consumption curve;
3) the need/useful to manage a backup system;