Utility Dive•about 1 month ago
PJM is now using ambient-adjusted transmission ratings. Other grid operators will soon follow.
Key Takeaway
The adoption of ambient-adjusted transmission ratings by PJM and soon other RTOs will unlock more grid capacity, improving interconnection prospects for new generation and potentially lowering costs for large consumers.
AI Summary
- •PJM has implemented ambient-adjusted transmission ratings, with other grid operators expected to follow suit in 2026.
- •MISO and NYISO are notable exceptions, planning to adopt these more precise line ratings later, in 2028.
- •This operational change is expected to increase effective transmission capacity and improve grid efficiency, potentially benefiting developers seeking interconnection and large power consumers through reduced congestion.
Topics
fercinterconnectmisopjmpolicyqueuetransmission