Energy transition technologies: the pace of progress?

This short 3-page note summmarizes  20 different TSE patent screens, to assess the pace of progress in different energy technologies. Lithium batteries are most actively researched. Autonomous vehicles and additive manufacturing technologies are accelerating fastest. Wind and solar remain heavily researched, but the technologies are maturing. The steepest deceleration of interest has been in fuel cells and biofuels. It remains interesting to compare the pace of progress within sub-industries. Our full underlying data-file behind this research paper is linked here.