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PJM–Southeast seam

PJM ↔ Southeast · Market seam (every AC tie between two markets)

PJM's ties to the Carolinas, TVA and Kentucky utilities to its south.

Now
3,022 MWSoutheast → PJM
PJM · as of Nov 10, 6:40 PM EST
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Operator readings

Compare each operator’s reading at its stated time. Scheduled transfers and metered physical flow measure different things.

As PJM reports it
3,022 MW · Southeast → PJM

Current reading · as of Nov 10, 6:40 PM EST

Last 30 days

Hourly readings, signed so that up is power leaving the market. Each series identifies whether it measures flow or a transfer schedule.

-6,000-4,000-2,00002,000Latest readingOct 15Oct 22Oct 29Nov 5

Above zero: PJM → Southeast. Below: the reverse.

Usual direction
Southeast → PJM in 99% of hours

1% out, 99% in, 0% idle across 721 hours

Average
3,160 MW · Southeast → PJM
When busy
4,484 MW

95th percentile of hourly flow either way

Peak PJM → Southeast
1,518 MW
Peak Southeast → PJM
5,327 MW
Direction changes
4
The average day
0:006:0012:0018:0023:00
Mean reading by the market's local hour. Up: PJM → Southeast. Down: Southeast → PJM.

Sources and method

Readings come from PJM interface readings. Each value is shown with its operator and source time; direction is normalized from that operator’s sign convention toward or away from PJM. A rating describes the equipment; an operator’s posted directional limit, when available, is a separate operating value. The map point identifies a sourced terminal or crossing where available, or a representative connection point; it does not trace the full route.

How intertie coverage is assembled