The PJM Interconnection board approved $5.9 billion in new transmission projects to bolster reliability across the grid operator’s footprint, PJM said Wednesday. That, combined with changes to the scope and cost of existing projects, mean PJM’s latest Regional Transmission Expansion Plan is set to cost $6.7 billion, according to the grid operator for 13 mid-Atlantic and Midwestern states and the District of Columbia.
The Regional Transmission Expansion Plan, approved Tuesday, contains a modified version of a proposal to build a 765-kV, multistate transmission backbone offered by American Electric Power, Dominion Energy Virginia and FirstEnergy. This roughly $4.6 billion set of projects, which includes 500-kV facilities, aims to bolster west-east regional power transfers, according to PJM staff analysis of its recommended plan.
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