The International Energy Agency (IEA) released its Technology Roadmap for electric Plug-in-hybrid electric vehicles (EVs and PHEVs). The primary role of this EV/PHEV Roadmap is to help establish a vision for technology deployment; set approximate, feasible targets; and identify steps required to get there. It also outlines the role for different stakeholders and how they can work together to reach common objectives, and the role for government policy to support the process.
Link: Technology Roadmap: Electric Plug-in-Hybrid Electric Vehicles