In 2015 we embarked on a project with a 2030 horizon, focussing on the transformation of the GB electricity system to enable the country to respond to the challenges of decarbonisation. By we, I mean the Energy Systems Catapult (for whom I work), and the Institution of Engineering and Technology (IET); but we were not alone. Yes, we led, managed and supported the project but we didn’t do this in isolation; there was a broad range of organisations from across the power sector involved, in this example of genuinely collaborative working.