The windsurfer missed out on selection at Rio 2016 and Tokyo 2020, stepping away from the sport to contribute to reducing its carbon footprint.
Sills has worked on emissions-free electric boats in Norway with ZEM energy and helped develop eco-friendly prototypes in Sweden. The former junior world champion returned to sailing after the Olympic windsurfing equipment changed from RS:X to iQFOiL.
He hit a purple patch in early 2023, winning the prestigious Trofeo Princesa Sofia and going on to qualify his boat for the Games with fifth at August’s World Sailing Championships. His sister, Saskia, is also a windsurfer and has been part of the British Sailing Team.