IEA (2020), Geothermal, IEA, Paris https://www.iea.org/reports/geothermal
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Electricity generation from geothermal increased by an estimated 3% year-on-year in 2019, falling below average growth of the previous five years. Consequently, the technology is still not on track to reach the Sustainable Development Scenario (SDS) level, which would require a generation increase of 10% per year to 2030.
Geothermal capacity additions averaged 500 MW per year in the last five years. Most of this growth was in emerging economies because they have abundant and untapped resource availability.