Probabilistic Redispatch Assessment.
Find every thermal violation in every simulated hour, then price the cheapest way to clear them.
A load flow against every N-1 contingency in every simulated hour. Quad-boosters and HVDC links are re-dispatched first; whatever overload is left is costed zonally, nodally or both.
Why it matters nowCurtailment and negative prices make congestion a direct hit on revenue, and one constraint can decide a project. PRA shows what causes it and what it is worth to fix, per asset and per constraint.
How PRA works.
- 01
Stochastic SCLF
DC load flow against the full monitored N-1 contingency set, across all hours.
- 02
Violation report
Per circuit and per hour: the severity ratio, with the binding contingency named.
- 03
Asset optimisation
Quad-booster angles and HVDC set-points are re-dispatched to cut overloads.
- 04
Residual cost
The remaining redispatch, costed zonally, nodally or hybrid. This is the value of the next intervention.
Every overload, located in space and time.
A thermal-violation heatmap across circuits and months. The binding circuit lights up in the peak month. Hover any cell for its severity.
Figures from an example run on a test network.
71% of overloads disappear once existing network assets are dispatched optimally. The remaining £412m a year sets the floor on what new transmission, storage or demand response is worth.