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ETSA Utilities performs reasonableness tests in accordance with Section 3 of the ESCOSA Guideline 12. These tests establish whether or not a Demand Management solution to the constraint is likely to be economically or technically feasible. If a constraint passes the test then a Request For Proposal is issued for public comment.
Further information on this process and on network constraints and the network planning process used to identify them can be found on the Annual Network Plans page.
The results of these tests are published below:
RT008/09 - Overload of Naracoorte Substation (261KB)
RT007/09 - Overload of Bordertown Substation (237KB)
RT006/09 - Overload of Port Augusta West Substation (192KB)
RT005/09 - Overload of Ascot Park, Glenelg North and Morphettville Substations (403KB)
RT004/09 - Overload of Balhannah Substation (251KB)
RT003/09 - Overload of Nairne Substation (188KB)
RT002/09 - Overload of Penfield to Elizabeth South 66kV line (249KB)
We intended to publish four additional reasonableness tests in 2009, but due to changes in customer activity the forecast constraints are now later than originally estimated. The new expected publication dates for these tests are:
RT005/08 Overload of Woodforde and Campbelltown Substations (1.08MB)
RT004/08 Overload of Feeders in the Hackham Area (508kB)
RT003/08 Overload of Yankalilla Substation (328kB)
RT002/08 Overload of Happy Valley Substation (570kB)
RT001/08 Overload of North Adelaide Substation (537kB)
RT002/07 Overload of Northfield and Hillcrest substations (156kB)