Wind turbines convert the kinetic energy in the wind into mechanical power. This mechanical power can be used for specific tasks (like grinding grain or pumping water) or a generator can convert this mechanical power into electricity. We use most turbines for electricity.
Problems Sometimes the wind might not be strong enough to turn the turbine, Sometimes there might not even be any wind at all. If a part would break it would cost a lot of money The Wind Turbines cost a lot of money in general.
Solutions The US should pay to have a wind farm in every state. Don’t rely on JUST the turbines for energy. There’s nothing you can really do about the no wind thing