Dispatch Constraint Violation Penalty Factors

The NEM central dispatch process employs a linear programming-based market solver to find the optimal solution to the dispatch problem, subject to a number of different types of constraints. Each constraint type is assigned a constraint violation variable and an associated constraint violation penalty (CVP) price, to ensure that the market solver is able to resolve dispatch conflicts and find a feasible solution. The CVP price (or CVP factor, when expressed as a multiple of $VoLL) represents the incremental cost incurred in the dispatch optimisation if a constraint of that constraint type were violated, thus defining a priority order for relaxing constraints that cannot simultaneously be satisfied.

This document:

  • Provides a full listing of the various constraint types and their associated CVP factors
  • Identifies the various rules used to establish the relative priority order for resolving dispatch conflicts between different constraint types
  • Highlights the various changes to constraint type CVP factors that have occurred since previous version 3 of this Document dated 30th November 1998

For further information on this document, please contact the AEMO Information Centre.

Dispatch Constraint Violation Penalty Factors
23 Jul 2010 | filename: 0140-0038.pdf