Exhibit . Summary of Sample Output from the Comparison Process Pilot Test WECC Paths 8 and 14 LECP Alternative Components Brief Explanation of Component (Blue in Exhibit B-1, Appendix B) Summary of Environmental and Cultural Risk Comparison Results Describes specific characteristics of transmission alternatives Data-driven Analysis and is linked to one or more specific outputs (metrics). Represents the EDTF’s risk classification categories over the Environmental and Cultural Proportional Risk Score: 1.10 entire transmission alternative length. Results in two possible Risk Risk-Adjusted Miles Score: 505 scores on calculation performed. Length: 458 miles Alternative Description Voltage: unknown Identifies the alternative length (miles) and any known engineering details (voltage, capacity, type of alternative) Capacity: unknown Type of alternative: unknown Stakeholder Review Yes: The EDTF conducts stakeholder meetings to review outputs Adjustments to Risk from the Data-driven Analysis and identify risk classification Tribal burial sites: change from Risk Classification Category Classifications made during category assignments that do not seem to appropriately capture 2 to Risk Classification Category 3 Stakeholder Review? environmental and cultural risk. Stakeholders propose modifications to Risk Classification Categories if appropriate, and supply justification; stakeholder proposed modifications are reviewed for approval by the EDTF. Detailed Supporting Results Represents the EDTF’s risk classification categories over the Environmental and Cultural Risk entire transmission alternative length. Results in two possible Score (see Section 4.1.1) scores based on calculation performed. Area type risk classification Represents the proportion of the transmission alternative within – Proportional Risk each Risk Classification Category. (418/458)*1 = 0.91 Represents proportion of the least risk of environmental or Category 1 cultural resource sensitivities or constraints1. ((length / total length) * risk classification category value) (30/458)*2 = 0.13 Represents proportion of low to moderate risk of environmental Category 2 or cultural resource sensitivities and constraints1. ((length / total length) * risk classification category value)
Exhibit . Summary of Sample Output from the Comparison Process Pilot Test Components WECC Paths 8 and 14 LECP Alternative (Blue in Exhibit B-1, Appendix B) Brief Explanation of Component Summary of Environmental and Cultural Risk Comparison Results Data-driven Analysis Describes specific characteristics of transmission alternatives and is linked to one or more specific outputs (metrics). Environmental and Cultural Risk Proportional Risk Score: 1.10 Risk-Adjusted Miles Score: 505 Represents the EDTF’s risk classification categories over the entire transmission alternative length. Results in two possible scores on calculation performed. Alternative Description Length: 458 miles Voltage: unknown Capacity: unknown Type of alternative: unknown Identifies the alternative length (miles) and any known engineering details (voltage, capacity, type of alternative) Stakeholder Review Adjustments to Risk Classifications made during Stakeholder Review? Yes: Tribal burial sites: change from Risk Classification Category 2 to Risk Classification Category 3 The EDTF conducts stakeholder meetings to review outputs from the Data-driven Analysis and identify risk classification category assignments that do not seem to appropriately capture environmental and cultural risk. Stakeholders propose modifications to Risk Classification Categories if appropriate, and supply justification; stakeholder proposed modifications are reviewed for approval by the EDTF. Detailed Supporting Results Environmental and Cultural Risk Score (see Section 4.1.1) Represents the EDTF’s risk classification categories over the entire transmission alternative length. Results in two possible scores based on calculation performed. Area type risk classification – Proportional Risk Represents the proportion of the transmission alternative within each Risk Classification Category. Category 1 (418/458)*1 = 0.91 ((length / total length) * risk classification category value) Represents proportion of the least risk of environmental or cultural resource sensitivities or constraints1. Category 2 (30/458)*2 = 0.13 ((length / total length) * risk classification category value) Represents proportion of low to moderate risk of environmental or cultural resource sensitivities and constraints1.
2012_WECC_TransmissionAlternative_ComparisonMethodology.docx