Constraint Mapping of potential sites

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Most of the electrical substations in the SEXI Group region have been constraint mapped.  Included below is a sample of the mapping.  The constraint mapping process is described in the “Notes and Summary” page.  And the collated results of the mapping process are included there.  In short, there are more than enough potential sites to host up to five medium scale concentrating solar power plants in inland NSW.

Below is the constraint mapping of Balranald, Bourke, Peak Hill, and Nevertire.  These are given as examples, to show what an excellent site looks like.  These sites below are not preferred above any of the other Excellent rated sites in inland NSW.

Included is constraint mapping around West Jemalong, Lake Cargelligo and Manildra.  Two of these electrical substations have medium scale concentrated solar power stations completed or under construction.  Manildra had a PV panel farm proposed for adjacent to its zone substation.

Bourke has an Excellent site rating.  There is more than 30 hectares of cropping or grazing land within a 2 km radius of the zone substation (within the red circle).  There are paddocks that are some distance from houses.  There are a number of possible sites within the 2 km radius.  The preliminary constraint mapping is of a general nature only.

A detailed site assessment would be undertaken when a site is selected.  The area around Bourke goes under water when the Darling river floods – the depth, velocity and frequency of this and any protective measures for a CSP be considered in the detailed site assessment; and would be compared to other possible sites.  Some of the land close to the substation is Crown Land; some is privately owned.  Ownership, zoning etc are among the numerous factors considered in a detailed site assessment.

Peak Hill has an Excellent site rating.  There are a number of cleared cropping or grazing paddocks within 2 km of the existing electrical zone substation. There are areas away from houses.  There is a 2 km scale at the bottom of the aerial photos, and the circle has a 2 km radius, centred on the zone substation.  For comparison purposes, the grey square at the bottom of the page is approximately 30 hectares in area, and the red square is approximately 10 hectares.  Sunlight falling on a 30 hectare site would have enough energy to run the electrical demands of most country towns.

West Jemalong has an Excellent site rating.  There are a number of cleared cropping or grazing paddocks within 2 km of the existing electrical zone substation. There are areas away from houses.  West Jemalong is included here because a medium scale concentrating solar power station is being built not far from the West Jemalong zone substation.