now, danielle, i want to come back to you to hear about your latest prototype wind turbine, the haliade—x, unveiled in 2019. it is a monster of a machine, this thing. and i want you to describe for me its scale and efficiency, and how you get it to work. so, the haliade—x is the world's most powerful wind turbine in operation today. it's offshore, it has a iii—megawatt capacity, and the rotor — so, the distance from blade tip to blade tip — is 220 metres. so each blade is longer than the wingspan of the largest aircraft in the world. each spin of one of those blades can power a typical household for more than two days. so, a typical wind farm can power about a million households. and so this is incredibly important in terms of being able to move to more wind