Okay kiddo, let me explain to you what a Savonius wind turbine is.
Firstly, do you know what a windmill is? It's a structure with blades that spin when the wind blows, and it's used to create energy.
Well, a Savonius wind turbine is a type of windmill that looks a bit different from the usual windmills you might see. It has two curved blades that are shaped like an "S" and are attached to a vertical axis that stands upright.
When the wind blows, it hits one side of the blade and creates a force that makes the blade spin. This spin then turns the axis, which is connected to a generator that creates electricity!
One of the cool things about the Savonius wind turbine is that it works well in areas where the wind doesn't always blow in a straight line. Because of the curved shape of the blades, they can catch wind from different directions and still spin.
And you know what's even cooler? A Savonius wind turbine doesn't make a lot of noise, so it's less annoying to people who live nearby than other types of wind turbines.
So, to sum it all up - a Savonius wind turbine is a windmill with two curved blades that spin when the wind blows, and it's used to create energy. It's good in places where the wind doesn't blow in a straight line, and it's not too noisy. Cool, huh?