The European Green Deal aims to make Europe the first climate-neutral continent by 2050. This is not going to be an easy journey. To be successful, the European Green Deal will have to foster major shifts in the European industrial structure, including transitions from fossil fuels to renewable energy and from combustion engine cars to electric cars. Shifting economies from brown to green would be a major, historic socio-economic transformation. In this context of broad, paradigmatic, change for European industry, a 'green industrial policy' will be fundamental to Europe's climate change ambitions. But what is green industrial policy? What market failures must it address? Unlike traditional industrial policy, green industrial policy must be directed to twin goals of climate protection and social welfare. Green industrial policy initiatives in the European Union so far, however, have been piecemeal and fragmented. This Blueprint examines how past mistakes can be avoided and how the EU can develop a coherent green industrial policy that will serve the goals of the European Green Deal.