The Southwest Power Pool (SPP) is a regional transmission operator authorized by the Federal Energy Regulatory Commission to operate and plan transmission lines in all or part of nine states, including a portion of western Arkansas. SPP owns no transmission lines or power plants. SPP manages transmission lines, acting like an “air traffic controller” for the electricity that flows through the lines, and is responsible for maintaining the short-term reliability of the lines. SPP uses computer modeling to predict where and when there are likely to be problems in maintaining the flow of electricity through the lines in its area.
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