In less than an hour, the Earth receives an amount of energy from the Sun that is equal to the world consumption for a year. Solar energy, unlike the other sources of energy, is present in all over the planet (with some differences depending on the latitude) and it is a source that will accompany us for billions of years more. Solar energy, therefore, besides being abundant and well distributed, is also a renewable resource. These characteristics would make the Sun the principal source of energy, only that solar energy has a low power and is intermittent on a local scale. In fact the flow of energy from the Sun depends on the alternating day and night and the variable meteorological conditions. It is evident that with the current solar technology it is not possible to make most of the large structures which have a high energy demand, such as the industries and the hospitals, work. The principal technological challenge of our days is to succeed in storing the immense energy that comes from the Sun and make it available at the right intensity where there is a demand for energy.
Research and innovation
Energy everywhere
Accumulation of energy
Lithium batteries
Lithium extraction
Silicon cells
Discontinuous energy
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