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Mercury and Air Toxics Standards

Resource Adequacy and Reliability in the IPM Projections for the MATS Rule

This document describes resource adequacy and reliability results in the IPM 2015 projections for the base case and MATS rule policy cases. As used here, the term Resource Adequacy means the provision of adequate generating resources to meet projected load and generating reserve requirements in each region, while Reliability includes the ability to deliver the resources to the loads so the overall power grid remains stable. IPM is specifically designed to ensure generation resource adequacy, either by using existing resources or through the construction of new resources. IPM addresses reliable delivery of generation resources only for the delivery of electricity between regions, by setting limits to the ability to transfer power between regions using the bulk power transmission system. Within each model region, IPM assumes that adequate transmission capacity exists to deliver any resources located in, or transferred to, the region.

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