Solar Potential Area in G20

[R]E SPACE assessed available solar energy potential under space constrained conditions for G20 with a methodology developed by UTS-ISF One Earth Climate Model team. The total theoretical solar potentials under space-constrained conditions is estimated with 33.6 million km2 or 839 TW. Under the conservative assumption that a solar photovoltaic generator produces 1,100 kWh for each installed kilowatt (average value in Central Europe) the solar potential of the G20 should be able to generate 923, 322 TWh / year, which is sufficient to supply the 2020 global electricity demand 42 times over. Therefore, there is no lack of solar potential to satisfy the entire electricity demand of the G20, even under the assumption that the demand will increase significantly over the next 30 years.

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