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SPP’s $664 spread says congestion is in charge
SPP just printed a $664.16/MWh real-time spread, with WR.VOLT.0174 at $621.21/MWh and WRKPAUGICN1 at -$42.95/MWh. That is not a modest basis move; it is a routing problem wearing a price tag.
The spread is mostly congestion, not energy. WR.VOLT.0174 carried a $605.96/MWh congestion component against a common $15.93/MWh energy adder, while WRKPAUGICN1 showed -$58.19/MWh congestion on the same $15.93/MWh energy component. FRONTIER was the second-highest node in the snapshot at $460.75/MWh, which tells you the pressure is not isolated to a single bus. The node stack is steep: the top end clears at more than 10x the energy component, while the low end is actively negative.
That shape usually means a binding constraint is forcing incremental MWh toward one pocket of the footprint and away from another. The anomaly log says SPP has seen 2,513.49 MW of wind redispatch curtailments and 28,471.4 MW of generation capacity on outage in the recent sample, with coal carrying 9,590.7 MW of that offline stack. I would not treat those numbers as a direct read on this 18:20 interval, but they are the kind of setup that lets congestion gaps open fast and stay open. The fact that WRKPAUGICN1, WRKPAUGICN2, WRKPAUGICN3, and WRKPAUGICN4 all printed the same -$42.95/MWh is another tell: this is a zone effect, not a one-node typo.
For traders, the key question is persistence. If the congestion component stays above the energy leg, then the basis between the western high-price pocket and the KP low-price pocket should remain wide, and any spread linked to WR.VOLT.0174 versus WRKPAUGICN1 will remain sensitive to operator action and constraint relief. If the next few intervals show FRONTIER and the WR.KP cluster converging, this was likely a sharp but transient constraint event. If not, watch for the spread to reprice as a session-wide congestion trade rather than a single 5-minute spike.
> When the energy component is the same and the congestion leg does all the work, the market is telling you where the wire is tight.
Not investment advice. For informational purposes only.
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By LYU LLC DBA Grid AlphaSPP just printed a $664.16/MWh real-time spread, with WR.VOLT.0174 at $621.21/MWh and WRKPAUGICN1 at -$42.95/MWh. That is not a modest basis move; it is a routing problem wearing a price tag.
The spread is mostly congestion, not energy. WR.VOLT.0174 carried a $605.96/MWh congestion component against a common $15.93/MWh energy adder, while WRKPAUGICN1 showed -$58.19/MWh congestion on the same $15.93/MWh energy component. FRONTIER was the second-highest node in the snapshot at $460.75/MWh, which tells you the pressure is not isolated to a single bus. The node stack is steep: the top end clears at more than 10x the energy component, while the low end is actively negative.
That shape usually means a binding constraint is forcing incremental MWh toward one pocket of the footprint and away from another. The anomaly log says SPP has seen 2,513.49 MW of wind redispatch curtailments and 28,471.4 MW of generation capacity on outage in the recent sample, with coal carrying 9,590.7 MW of that offline stack. I would not treat those numbers as a direct read on this 18:20 interval, but they are the kind of setup that lets congestion gaps open fast and stay open. The fact that WRKPAUGICN1, WRKPAUGICN2, WRKPAUGICN3, and WRKPAUGICN4 all printed the same -$42.95/MWh is another tell: this is a zone effect, not a one-node typo.
For traders, the key question is persistence. If the congestion component stays above the energy leg, then the basis between the western high-price pocket and the KP low-price pocket should remain wide, and any spread linked to WR.VOLT.0174 versus WRKPAUGICN1 will remain sensitive to operator action and constraint relief. If the next few intervals show FRONTIER and the WR.KP cluster converging, this was likely a sharp but transient constraint event. If not, watch for the spread to reprice as a session-wide congestion trade rather than a single 5-minute spike.
> When the energy component is the same and the congestion leg does all the work, the market is telling you where the wire is tight.
Not investment advice. For informational purposes only.