There is no direct proof that corona discharges can improve the possibility of upward chief initiation, but close by lightning flashes can enhance the supply price of corona discharges proper after the flashes. The peak of the source height distribution of corona discharges is about one hundred m greater than the top of the windmill and the highest of the tower. Observations of corona discharges from a windmill and its lightning protection tower with a nine-station LMA are reported. Because of the shifting blades able to escaping shielding area expenses, windmill coronas are distinctly totally different from tower coronas. Windmill coronas generally have larger powers and presumably develop higher upward than tower coronas do.