VRE shares in generation and technical curtailment for selected countries

Sources

Australian Energy Market Operator (AEMO), Quarterly Energy Dynamics (multiple releases); Coordinador Eléctrico Nacional de Chile (CEN), Reducciones de energía eólica y solar en el SEN (multiple releases); National Bureau of Statistics of China (NBS), China Energy Datasheet 2000-2021; ); Bundesnetzagentur, Monitoring Report 2022; Gestore Servizi Energetici (GSE), Rapporto attivita 2021; EirGrid, Renewable Dispatch-Down (Constraint and Curtailment) reports (multiple releases); Hokkaido Electric Power Network, Area supply and demand data (multiple releases); Tohoku Electric Power Network, Area supply and demand data (multiple releases); TEPCO Power Grid, Area supply and demand data (multiple releases); Chubu Electric Power Grid, Area supply and demand data (multiple releases); Hokuriku Electric Power Transmission & Distribution, Area supply and demand data (multiple releases); Kansai Transmission and Distribution, Area supply and demand data (multiple releases); Chugoku Electric Power Transmission & Distribution, Area suppy and demand data (multiple releases); Shikoku Electric Power Transmission & Distribution, Area supply and demand data (multiple releases); Kyushu Electric Power Transmission and Distribution, Area supply and demand data (multiple releases); Okinawa Electric Power, Area supply and demand data (multiple releases; Red Eléctrica de España (REE), I3DIA (multiple releases); California Independent System Operator (CAISO), Production and Curtailments data (multiple releases; Renewable Energy Foundation, Balancing Mechanism Wind Farm Constraint Payments.

Notes

Data points represent officially reported curtailed or constrained energy and combines various schemes depending on the country. VRE refers to solar PV and wind unless otherwise specified. Italy includes only wind. Spain includes PV, wind, CSP and biomass technologies. The United Kingdom includes only wind. “Technical curtailment” refers to the dispatch-down of renewable energy due to network or system reasons. Dispatched-down energy due to economic or market conditions is not included in this chart.