Skip to content

Network capacity mapping tool

The Network capacity mapping tool (NCMT) provides you with visualisation of our network capacity. It’s primary objective is to give users insight into our forward looking network capacity based on all planned network changes and growth plans. This enables the customer to view Western Power’s current and proposed electrical network and understand how this may affect their development plans and investment options.

In July 2017 we modified the mapping tool to give you more flexibility and functionality. The modifications include:

  • Ability and flexibility to add your own data. You can drag your own data onto the map to help you visualize and answer questions at a glance.
  • Being mobile friendly -  You can now use the maps on move or on location!
  • Changeable map backgrounds to suit the style you prefer.
  • New functionality such as address searching and bookmarks.

We appreciate feedback, so if you have any suggestions or recommendations to help make things easier, please feel free to contact us.

For more information, please expand the sections below:

  • a series of relevant outlooks of the annual forecast remaining capacity available at Western Power zone substations. This enables the customer to view Western Power’s current and proposed electrical network and understand how it may affect their development plans and investment options. By selecting a forecast year, the customer will be provided with an online interactive geospatial view of that years forecast remaining capacity for each Western Power zone substation. The tool will display the forecast yearly remaining capacity levels as a coloured polygon that represents the actual supply area of each zone substation for that forecast year
  • geospatial locations of existing substations, terminals and most power stations with indicative geospatial locations for committed future substations and terminals indicating the likely year of commissioning
  • a link to the current Annual Planning Report (APR) which contains information about the Supply and Transmission network projects that have been approved for each existing Western Power substation plus any information about approved projects for committed future Western Power substations. The APR also provides information describing identified issues in specific areas of supply
  • high voltage overhead transmission lines indicating kV rating
  • a community engagement sessions layer which provides a link to the Western Power website and shows a list of projects and community engagement sessions scheduled to occur in specified areas
  • the overhead and under ground high voltage feeder reticulation for each existing Western Power substation showing single (1) and three (3) phase availability
  • potential SWIS distribution connection points for energy generators. Shown as points of connection for generators with the following outputs 0<X≤1MVA, 1<X<5MVA, 1<X<10MVA and 1<X≤30MVA.

Users should be aware and understand that the network planning information supplied by the NCMT:

  • is not necessarily complete
  • does not replace the current application process
  • does not replace ‘Dial Before You Dig’
  • is general in nature
  • should not be relied upon as a substitute for independent research and professional advice
  • maintains customer confidentiality. That is, information on dedicated customer or customer owned substations is not shown.

Access Western Power’s electricity network planning information

Launch the Network Capacity Mapping Tool

How to:

Hint: When selecting the ‘Forecast Remaining Capacity Year’ layers from the ‘Layers List’ it is recommended that only one layer be selected at a time. Selecting more than one of these layers at a time my cause erroneous interpretations of the presented information.

Hint: When selecting layers to view from the ‘Layer List’ it is important to remember that the above layer will overlay the below layer. This is particularly important when viewing layers imported from external sources that have low transparency or opaque features. In this case, if the imported layer is selected and placed above the other selected layers (e.g. the Western Power layers) then the low transparency or opaque feature in the above layer may overlay (i.e. block from view) information in the below layer.