CitiPower and Powercor Australia has a responsibility to derive distribution loss factors (DLF's) for embedded generating units with actual generation of more than 10MW under the provisions of clause 3.6.3 of the National Electricity Rules. CitiPower and Powercor has used the methodology stipulated in the "Guidance Paper: Calculation Methodology for Distribution Loss Factors for the Victorian Jurisdiction” published by the Victorian Essential Services Commission (ESCV) on 14th February 2007 for this purpose. CitiPower and Powercor has revised the methodology for calculating DLF’s for large embedded generators using an incremental change in losses approach as a more suitable alternative. The revised methodology derives the DLF for large embedded generators as: DLF = 1 + (Annual distribution system energy losses without generator – Annual distribution system energy losses with generator) / Annual generation volume.
The AER has confirmed that it has not determined a methodology and therefore CitiPower and Powercor may adopt the revised methodology as an amendment to the former ESCV methodology, subject to its publication in accordance with Rule 3.6.3(g)(2) of the National Electricity Rules.
The methodology has been published.
http://www.powercor.com.au/docs/pdf/Electricity%20Networks/Powercor%20Network/Large%20Embedded%20Generation%20DLF%20Calculation%20Methodology.pdf
If you have any queries please contact:
Joe Thomas
Network Development Manager
Locked Bag 14090
Melbourne, Victoria 8001
Email: jthomas@powercor.com.au
Phone: (03) 9683 4545