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The amount of sunlight that strikes the earth's surface in an hour and a half is enough to handle the entire world's energy consumption for a full year. Solar technologies convert sunlight into electrical energy either through photovoltaic (PV) panels or through mirrors that concentrate solar radiation.
There is still a long way to go before solar overtakes coal in power generation but, solar panels generated a record 39TWh in June-July 2021, up from 28TWh in the same period in 2018.
Growth is also accelerating: the EU saw solar generation increase by 5.1TWh between June and July 2020 and 2021, a larger year-on-year change than in 2020 (+3.1TWh) or 2019 (+2.6TWh). Seven EU countries generated over a tenth of their electricity from solar panels in June-July 2021, with five ahead of the pack: the Netherlands and Germany (17 per cent each), Spain (16 per cent), Greece and Italy (13 per cent each).