The annual Tracking Clean Energy Progress (TCEP) report highlights the development and deployment of key clean energy technologies year on year. An excerpt of the publication Energy Technology Perspectives (ETP), which lays out pathways towards a sustainable energy system in 2050, this comprehensive overview tracks the evolution of select technologies and sectors against the interim 2025 targets of the International Energy Agency (IEA) 2°C Scenario (2DS). Each assessment includes three sections: Recent trends discusses the latest progress with reference to technology development and penetration as well as market creation; Tracking progress includes a quantitative evaluation of progress towards meeting the 2DS; and Recommended actions outlines measures to overcome barriers to meeting the 2DS.