To provide energy through solar panels, would be sufficient to cover the 2% of the surface of the Sahara desert (it is equivalent to the size of the Portugal): solar radiation in North Africa is actually three times higher than the

average European.

To meet European needs, it would be enough to cover 0.3% of the surface of this desert.

A relatively small proportion, considering that in the world are consumed each year more than 20,000 terawatt-hour of electricity (a million million watt-hours), including approximately 3200 in Europe (see figures