Because resources do not produce at their nameplate capacity, it is important to understand how much output to expect from a resource at a given time. This is the availability factor, sometimes called the capacity factor. Resource availability is critical to understanding whether the installed capacity in an area will be available when it is needed to meet demand.
The available output at any given time varies drastically by resource type, time of year, and time of day.
Clicking a region on the map will change the charts to show that area's information. Clicking the same area again will switch the charts back to the overall Western Interconnection results.
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