PJM's network upgrade cost estimates ($k/MW) are much higher than benchmark and historical levels


NREL ATB Benchmark based upon typical costs for a spur line (short, radial transmission lines from generator to the bulk grid), point of interconnection, and nominal network upgrades.
DOE i2X Target based upon historical best values and industry expectations.
The upper fence is the sum of the 75th percentile and 1.5 * Inter Quartile Range, which in this case is much lower than the maximum value.
Source: NREL, DOE, PJM Cycle Service Requests