What are wind turbines?

"Most wind energy comes from turbines that can be as tall as a 20-story building and have three 200-foot (60-meter)-long blades. The wind spins the blades, which turn a shaft connected to a generator that produces electricity."
https://www.nationalgeographic.com/environment/global-warming/wind-power/

"Wind turbines work on a simple principle: instead of using electricity to make wind—like a fan—wind turbines use wind to make electricity. Wind turns the propeller-like blades of a turbine around a rotor, which spins a generator, which creates electricity."
https://www.energy.gov/eere/wind/how-do-wind-turbines-work

"There are two primary types of wind turbines used in implementation of wind energy systems: horizontal-axis wind turbines (HAWTs) and vertical-axis wind turbines (VAWTs). HAWTs are the most commonly used type, and each turbine possesses two or three blades or a disk containing many blades (multibladed type) attached to each turbine. VAWTs are able to harness wind blowing from any direction and are usually made with blades that rotate around a vertical pole."
https://www.britannica.com/technology/wind-turbine

"Wind turbines cost a lot, and as such the investment is to be recouped over a long period of time.

Turbines produce significant electricity and sell it back to local power utilities where it flows to the power grid, used by homes and businesses."

"One megawatt can power about 1000 homes for a month but in reality, wind turbines don’t come close to producing their rated capacity because of changing wind speeds."
https://weatherguardwind.com/how-much-does-wind-turbine-cost-worth-it/

"Approximately 2% of the solar energy striking the Earth’s surface is converted to kinetic energy in wind. Wind turbines convert the wind’s kinetic energy to electricity"
http://css.umich.edu/factsheets/wind-energy-factsheet

"A wind turbine should be a reliable low-cost machine capable of running for long periods with no breakdowns and no need for servicing."
https://www.sciencedirect.com/topics/engineering/wind-turbines

"While most of a turbine can be recycled or find a second life on another wind farm, researchers estimate the U.S. will have more than 720,000 tons of blade material to dispose of over the next 20 years, a figure that doesn't include newer, taller higher-capacity versions.

There aren't many options to recycle or trash turbine blades, and what options do exist are expensive, partly because the U.S. wind industry is so young"
https://www.npr.org/2019/09/10/759376113/unfurling-the-waste-problem-caused-by-wind-energy

"The use of wind turbines to create wind energy is one of the more known methods talked about by environmentalists and the energy sector. The United States is aiming to produce 20 percent of its electricity by wind power by 2030. But as of 2013, wind power still only accounts for approximately 4% of the energy sector."
https://greengarageblog.org/10-fundamental-pros-and-cons-of-wind-turbines

"Installation Costs: As you can imagine, installing a group of these huge turbines can cost a lot of money. Installing just one of them can be as pricey as $2 million or more, with more costs coming for maintenance. Another cost in installing a turbine is less a monetary issue as it is an environmental one. The production, transport, and installation of one these turbines has a sizable “carbon footprint”, which is important to know, especially considering that the whole idea behind its construction is for clean power."
https://blog.udemy.com/disadvantages-of-wind-energy/

Dirty Secret Behind Wind Turbines, They Need Lots Of Oil
https://dailycaller.com/2017/03/03/dirty-secret-behind-wind-turbines-they-need-lots-of-oil/