2EN calculates PV plants energy yield by using data from specialized databases and company-owned meteo stations all over Greece.

(Ref: Suri M., Huld T.A., Dunlop E.D. Ossenbrink H.A., 2007. Potential of solar electricity generation in the European Union member states and candidate countries. Solar Energy, 81, 1295–1305, http://re.jrc.ec.europa.eu/pvgis/)

Using local meteorological information for the PV installation's location we can precisely calculate the site's potential.

To do so, a statistical analysis is conducted to obtain the mean monthly temperature (Ta), wind speed (FF), relative humidity (RH) and horizontal solar radiation (G_Gh) for the site.

Then, the site's layout is optimized for maximum energy yield using topographical information:

The PV panels must:

- have south orientation

- be inclined relatively to a horizontal plane according to the site latitude (typically at 25-35 degrees for Greece)

- Avoid shading from neighboring panels, trees, buildings or cliffs.

The calculated layout is then checked to satisfy homogenous cable laying and symmetrical inverter feeding.

PV Panel arrays are calculated by specific software, simulating electric loads, energy yield and other critical electrical variables to guaranty the installation's safety.