CSADIAB7N001 settled at -$150.77/MWh in CAISO's real-time market at 10:15 UTC on July 8, 2026. The congestion component alone was -$173.57/MWh, more than offsetting a positive energy component of +$27.44/MWh and a -$4.89/MWh loss component.

Four adjacent nodes — CONTROLX1N003, CONTROLX1N004, LEEVINE1N001, and LUNDY7N003 — posted nearly identical prints at -$150.74/MWh, all sharing the same -$173.57/MWh congestion signal. This is not a single-node data glitch. It is a localized pocket where the market is paying generators to reduce output, or equivalently, paying load to consume more. The energy component remains positive across CAISO, meaning the negative LMP is purely a congestion phenomenon: a binding export constraint from this sub-area into the wider grid.

CAISO recorded at least 1,668 curtailment events over the prior seven days, per gridalpha anomaly data. That figure signals chronic oversupply conditions, likely driven by solar ramping into low load. If the binding constraint at CSADIAB is a transmission path that frequently binds during midday solar peaks, traders should watch whether the negative LMP persists across consecutive 5-minute intervals or remains a single-interval spike. Persistent negative prints would widen the real-time versus day-ahead basis at CSADIAB, creating a repeatable congestion capture trade: buy day-ahead at the positive hub price, sell real-time into the negative node, and collect the congestion rent if the constraint holds.

> The -$173.57/MWh congestion component at CSADIAB is the signal, not the -$150.77 LMP; watch for persistence across intervals to size the basis trade.

Not investment advice. For informational purposes only.