Transmission Outages in ISO-NE & NYISO Will Elevate Congestion Risk This August | Congestion Watch Blog

Published July 14th, 2021 | congestion-watch

Weather forecasts across the Northeast power markets continue to call for warmer-than-normal temperatures this summer and elevated electricity demand will be the main congestion driver in August. Planned generator maintenance will be minimal; however, forced generator outages during hot summer weather could significantly impact congestion and be an import constraint on areas across the Northeast Power Pools.

  • ISO-New England – Transmission outages will elevate the congestion potential in NEMA, SEMA, and CT.
  • PJM – In Mid-Atlantic there is minimal transmission work scheduled, although 765 kV line work in Western PJM will be bullish for AEP, and 345 kV outages will be bullish for ATSI.
  • NYISO – Transmission outages continue to impact the Central-East interface throughout August, increasing the congestion potential in Zone F. Transmission work is also expected to be bullish for Zone A congestion.

Subscribers: Find out more about congestion drivers in August in our recent issue of Congestion Watch.

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Congestion WatchTM Ahead of each monthly Firm Transmission Rights (FTR) auction in the Northeast, our monthly congestion report provides month-ahead assessments of the congestion component of zonal LMPs for each Northeast RTO. Congestion WatchTM provides expert insights into key drivers for congestion pricing such as transmission and generation outages, system load and changes to fuel prices.