Aerones, a company that creates robots that scrub and inspect wind turbines, brought in $38.9 million in funding, according to TechCrunch.The funding came from dozens of undisclosed investors, and the company hopes to bring in $2.5 million more, according to a filing with the Securities and Exchange Commission.The robots clean the towers and blades of wind turbines, which can leak hundreds of liters of oil causing corroded blades, increased wind resistance and pollution in the ground below.As the robot cleans, the water used for cleaning is collected by skits and belts and pumped into a filtering station.The company has cleaned over 5,000 turbines to date across 19 different countries, an over 2,000 increase in turbines cleaned since April of this year when the company claimed it had serviced over 3,000 turbines in 17 countries."