The Verge provides footage of a drone clearing ice off of a wind turbine. "We’re still riding a wave of drone innovation as companies dream up new ways to put this cheap flight technology to use. But here’s an application you’ve probably never seen before: using a giant tethered drone to de-ice a wind turbine. The drone itself is built by Latvian firm Aerones, which specializes in heavy-duty UAVs. These powerful craft have up to 36 propellors and can lift as much as 100 kilograms. Aerones has been making them for years and says they have a range of potential uses, including help in rescue scenarios, firefighting in high-rise buildings, delivery, and industrial cleaning."