Installed capacity is a measure of how much energy the turbines could produce if running at maximum.
Data Source: AWEA

Distributed wind is the use of wind turbines, off-grid or grid-connected, at homes, farms and ranches, businesses, public and industrial facilities, and other sites to offset all or a portion of the local energy consumption at or near those locations, or systems connected directly to the local grid to support grid operations and local loads.
Data Source: DWEA

This chart shows the breakdown of energy use by source.
Data Source: EIA