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Geothermal energy is heat generated within the Earth's crust. It is used mainly for electricity generation, district heating and industrial processes. Several geothermal technologies exist, at different levels of maturity. Heat is usually extracted from the ground using heat pumps to power district heating systems, or used directly to heat builidngs. Electricity generation uses the heat stored underground, converting it to electrical power. The three main technologies for electricity generation are ...

The International Renewable Energy Agency (IRENA) is the only international organisation that is dedicated exclusively to promoting the global adoption of renewable energy and facilitating its sustainable use. Today, five years after its establishment in 2011, IRENA has 149 members, including 27 EU Member States and the European Union. IRENA provides renewable energy data and statistics, advice on best practices and policy, as well as financial and technological expertise. It exerts its influence ...