Probabilistic Dispatch Assessment.
Half-hour security-constrained dispatch — across the full year, with the grid as a first-class constraint.
An SCED solver that minimises system cost under thermal, voltage and N-1 security limits. PTDF sensitivities trigger redispatch the moment a circuit binds — batteries, electrolysers and interconnectors all co-optimised in the same envelope.
Why it matters now Curtailment is turning structural rather than temporary — renewable output the grid simply can't absorb, now a fixed feature of saturated networks. A project valued on its nameplate is valued on a fiction; what matters is how it actually dispatches once the grid binds. PDA proves that, half-hour by half-hour, across the year.
Industry context, 2025 — IEA, Ember, market forecasts and a 2025 survey of 100+ energy professionals.
The generation stack, resolved every half hour.
A representative week of security-constrained dispatch. When a monitored circuit binds, SCED chooses the cheapest redispatch over involuntary load-shed — every time.
Four stages, one optimisation envelope.
SCED solver
Linearised optimal generation mix at half-hour resolution — thermal, voltage and N-1 limits enforced.
PTDF redispatch
Auto-triggered on overload: the cheapest re-shuffle of injections, with no involuntary load-shed.
Sector coupling
BESS, hydrogen electrolysers and demand-side response co-dispatched in the same solve.
Interconnector co-opt
Cross-border flows optimised alongside domestic generation across all scenarios.
SCED chooses redispatch over load-shedding every time — and the slack variables emit precise signals on where new transmission, flex or interconnection pays back fastest.
Brief us on a project.
Send a one-paragraph scope — the system, the codes that apply, and the question you need answered. We typically reply within two working days.
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