So much wrong for such a short article. Sure, if we covered that many square km of Algerian desert with solar panels, we could generate enough electricity to power the world. Electricity generation is not our primary problem, electricity distribution is. Even with traditional power generation distribution is the major source of energy loss - so much more energy is required to be generated to get a usable amount to your home and business. Generating the world's electricity in Algeria is easy, you have strong sunlight, all the time, with rare weather and seasonal variances. But in order to even distribute that power to the other side of the Mediterranean, you'd have to generate several times that much power.