Document: NUREG-1555
Document ID: b0a0b132-269c-48c5-ac4c-6f67298c2f61
Document Type: esrp
Title: TRANSMISSION SYSTEMS
Source: NUREG-1555
Source URL: https://www.nrc.gov/reading-rm/doc-collections/nuregs/staff/sr1555/initial/
Revision Date: 2007-10
Chapter: 9
Section ID: 9.4.3
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nature and magnitude as those of the proposed system. - Environmental inferiority will be established when an alternative can be shown to have unavoidable adverse impacts that are more severe in both nature and magnitude than those of the proposed system or that will not comply with applicable Federal, State, regional, local, and affected Native American tribal regulations. When the reviewer determines that there are environmentally preferable alternatives to the proposed transmission system, the reviewer should conduct those portions of the analysis instructions of this ESRP that deal with the economic costs of the alternative systems. (b) When environmentally preferable alternative transmission systems have been identified, the reviewer should ensure that economic cost data have been developed for the alternatives and that these data are adequate for a benefit-cost balance and comparison with the proposed system. This portion of the evaluation procedure should be conducted with the assistance of reviewers for ESRPs 10.4.1, 10.4.2, and 10.4.3. The reviewer should complete the economic factors portions of Table 9.4.3-1. On the basis of the completed table, the reviewer should balance and compare benefits and costs of the environmentally preferable alternative(s) with those of the proposed sys- tem. When an environmentally preferable alternative can be shown to have the same benefits as the proposed system with comparable reliability and at the same or lesser economic costs, the reviewer may conclude that the alternative should be considered as a replacement for the pro- posed system. For those cases in which benefits of the alternative are less than those of the pro- posed system (e.g., increased transmission losses or decreased system reliability) or where economic costs exceed those of the proposed system, a conclusion to further consider the alter- native should lead to consultation with the Environmental Project Manager and with the appro- priate ESRP Chapter