Wind turbine spinning on Danube Island with Vienna skyline and river, sunny day, renewable energy concept, aerial view

wind turbine danube island vienna skyline river sunny renewable energy aerial view spinning blades clean power sustainable environment cityscape riverbank blue sky greenery landscape urban technology ecology energy production natural resource austria outdoors panoramic scenic alternative energy daytime ecofriendly innovation electricity generation motion wind power environmental conservation tourism landmark infrastructure development green technology harnessing windmill rotating summer waterfront foliage climate action power supply aerial shot european city