Distribution Connection and Use of System Agreement DCP 227 - Removing the inconsistency in the application of Peaking Probabilities in the Common Distribution Charging Methodology
Decision
Publication date
This change proposal removes the inconsistency in where peaking probabilities are applied and where they are not in the Common Distribution Charging Methodology (CDCM).
Currently, the CDCM has a different set of rules for domestic (household) customers and small business and other non-domestic customers on the unrestricted tariffs compared to the rules for those on tariffs with multiple unit rates when allocating the costs of each network level on the basis of contribution to system simultaneous maximum load.
The network level cost is allocated to some tariffs on the assumption that all assets at all levels peak at the time of system peak, but the network level cost is allocated to the other tariffs in a way which reflects the peaking probabilities of each network level.
The Authority approved this modification on 21 October 2015.