Outage constraint TL23054 is an outage-driven constraintthat appears as a congestion constraint in the California ISO market. When power flow reaches this element's operating limit, CAISO's market optimization assigns it a shadow price — the cost to the system of that limit binding — which in turn drives locational price separation around it.
Across the market intervals retained in this dataset, it has bound 9 times, with the largest shadow price observed at −$148.82/MWh on 2026-07-21. Prices are shown with the sign CAISO publishes; magnitude is the severity signal.
This constraint is tagged by CAISO with outage reference TL23054, meaning it exists because of a specific transmission outage rather than as a permanent network limit.
Data comes from CAISO OASIS (PRC_NOMOGRAM) for both the day-ahead and real-time markets, refreshed automatically. This page is informational only and is not trading, financial, or operational advice.