ABSTRACT
Solar energy is low-density energy by nature. To utilize it on a large scale, a massive land area is necessary. However, one-third of the land surface on the Earth is covered by very dry areas called deserts, as shown in Figure 5.1. High-level insolation and large spaces exist. It is estimated that, if a very small part of these areas, say 4 %, were used for the installation of PV systems, the annual energy production would equal world energy consumption. World deserts (units: 10<sup>4</sup> km<sup>2</sup>) https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315074443/56c59108-9468-4d52-ba70-62619b3075ed/content/fig5_1_C.jpg" xmlns:xlink="https://www.w3.org/1999/xlink"/>
