Voltage Results (Appendix A, Table. 2) Appendix A, Table 2 contains contingent conditions causing voltage criteria violations without White Pine Unit 1 online. The 2014 summer peak analysis identified no voltage violations for system intact and NERC Category B events and one violation due to a Category C event. In the 2014 shoulder analysis with the UP split, no Transmission System voltage violations were observed for system intact, NERC Category B, or planned outages followed by a NERC Category B contingency. With the Mackinac Flow Control in service, no NERC Category B violations were identified, but several voltage violations occurred for three events involving planned outages followed by a NERC Category B contingency. No voltage violations were identified in the 2018 summer peak analysis. In the 2018 shoulder analysis there are two pre- existing voltage violations due to events involving a planned outage followed by a NERC Category B contingency that are aggravated by the unit retirement. The most severe event involving an outage of the [REDACTED] line followed by an outage of the [REDACTED] line in the 2014 shoulder model leads to post contingent flow that is 155% of the time limited emergency rating of the remaining path into the study area, the 69 kV line from Xxxxxxx-Mass. An overload of this magnitude exceeds the Transient Thermal Rating (100% for ATC 69kV facilities) of the overloaded line causing it to trip almost instantaneously which results in voltage collapse of the area. PUBLIC VERSION VI. SSR COST ALLOCATION Table 2: SSR Agreement LBA/Pricing Zone Shares Area/PricingZone Cumulative Load Shed (MW) Share ATC 15 100%
