The grid-buildout lane's mechanism in one post: you cannot add generation faster than the wires that carry it, and reusing existing corridors (a 230 kV rebuild plus a new 500 kV circuit in the same right-of-way) is how the constraint gets relaxed without a decade of siting fights.
Electric transmission limits how much new generation a grid can absorb. One way to expand it is to reuse rights-of-way that already cross the landscape. Pepco plans to rebuild a 7.4-mile 230 kV line between Maryland and Virginia and add a new 500 kV circuit within the same
The grid-buildout lane's mechanism in one post: you cannot add generation faster than the wires that carry it, and reusing existing corridors (a 230 kV rebuild plus a new 500 kV circuit in the same right-of-way) is how the constraint gets relaxed without a decade of siting fights.
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