4E analysis of appliance trends has been used by the IEA in it’s latest report: Tracking Clean Energy Progress 2014 which examines progress in the development and deployment of key clean energy technologies.  This Energy Technology Perspectives 2014 (ETP 2014) excerpt tracks each technology and sector against interim 2025 targets in the IEA 2014 Energy Technology Perspectives 2°C scenario, which lays out pathways to a sustainable energy system in 2050.