Wind Speeds Across the Solar System - What would happen if we placed wind turbines on every planet? We created this animation to show how fast windmills would spin across the solar system — from the calm breezes of Venus to Neptune’s extreme winds reaching over 11,000 RPM. RPM (revolutions per minute) is the measure of how many full turns the blades make in one minute. For simplicity, the values here are based only on average wind speeds, without considering other factors like air density or tur