VELCO has identified reliability deficiencies associated with the potential loss of the St. Albans transformers and East Fairfax transformer at the subsystem level.  Breaker failures at the Georgia substation affect the subsystem, and interrupt bulk power flows from Highgate south. At the subsystem level, CVPS has identified as reliability deficiencies the potential loss of the East Fairfax transformer, 34.5 kV line contingencies, and decommissioning of hydro facilities at Peterson Dam.

The scope of study for this group of reliability deficiencies has been completed, and transmission and distribution (T&D) analysis has been started. NTA screening has not yet been conducted. The utilities project presenting NTA analysis to the VSPC in May 2008, and solution selection, implementation plans, and cost allocation to the VSPC in May 2009.

The map on the left shows roughly the area potentially affected by this reliability deficiency.