A wind turbine is a device that converts wind energy into electricity through rotating blades driving generators. Modern utility-scale wind turbines are large structures with towers reaching 80-160 metres and blade spans of 100+ metres, capable of generating several megawatts each. Wind farms cluster multiple turbines in windy locations. Wind power is a major renewable energy source in Canada, with significant capacity in Alberta, Ontario, Quebec, and other provinces. Wind energy produces no direct emissions during operation but has intermittent output depending on wind conditions. Municipal involvement includes land use approvals for wind projects, setback requirements from residences, and sometimes benefit agreements with developers. Debates around wind turbines involve visual impacts, noise, effects on wildlife (particularly birds and bats), and property values.