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Solar and wind energy are now cheaper than coal or gas-fired plants in most countries, and solar projects offer some of the lowest cost electricity ever seen<ref>[https://www.iea.org/reports/world-energy-outlook-2020 International Energy Agency 2020 World Energy Outlook Executive Summary]</ref>. However, the increasing availability of renewable energy has so far just increased the global demand for energy, not replaced energy created from fossil fuels<ref name=":10" />.
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