The rapid evolution in renewable energy has been prompted by legislators and the dawning realisation that we can and must do less damage to our precious planet. There is still a very long way to go and we are still at the beginning, so for investors there are plenty of opportunities to participate in and support this emerging, but enduring, transformation. The early entrant renewable energy companies are already very substantial. They have relatively simple business models and throughout this troubled year they have remained largely unaffected by the market turmoil brought on by the ravages of Covid-19. But to invest globally takes great skill and knowledge of the underlying issues that drive prices and valuations. There are four aspects underpinning the renewable energy sector and broader decarbonisation theme.