Last update: Saturday 3:27am 10/25/25
This note, Part 1 in a three part series, will provide an introduction to the PJM Interconnect that directs the transmission of electric power across thirteen states and the District of Columbia. Part 2 will highlight features of the PJM that provide persistent advantages — lower electricity bills — for households and enterprises in some states, while imposing persistent penalties — higher electricity bills — on households and enterprises in other states. Part 3 will analyze the ironic causes of the persistent penalties, i.e., the negative externalities, that are being reported by the media with increasing frequency and stridency.
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