Wind turbines, by themselves, should be considered as a part of an overall energy cycle: Source → Harvester → Transmission → Use or, Source → Harvester → Transmission → Storage → Transmission → Use and other variations on this general theme. read more
To store energy in a battery, you are correct in that the form of electricity required is DC. The raw AC power out of any wind turbine can be easily converted to raw DC by passing the AC through a device called a rectifier. read more
Electricity produced in wind turbines is transported to the consumer via a series of transmission and distribution networks. Each component of the network changes the voltage of the electrical power to optimize its transition to the next part of the network. read more