Stubbo Solar Farm 330/33kV Substation



EPEC Group


Renewable energy


Stubbo, NSW



PPI in partnership with EPEC Group were engaged to provide the design, supply, installation and commissioning of the earthing grid on the 330/33kV substation on Stubbo Solar Farm.

Stubbo Solar is a 400-megawatt (MW) large scale solar project approved by the NSW Department of Planning, Industry and Environment in July 2021. It is currently in construction across 1,250 hectares of mostly cleared grazing land in the Central West region of NSW.

It is being constructed by EPC contracting partner PCL Construction.

The project is located near Stubbo about 10 kilometres north of the historic mining town of Gulgong in the Mid-Western Regional Local Government Area. It will generate enough renewable energy to power 185,000 average Australian homes per year and contribute to NSW’s target of 50% renewable energy by 2030.The flat cleared grazing land across the site allows for rows of photovoltaic panels to be installed with enough height and space for sheep to graze in and around the panels. They will provide welcome shade and protection to grazing animals from the hot summer sun.

EPEC Group engaged PPI to provide the original design of the earthing on the substation as well as supply, installation and commissioning.

PPI’s project management team provided the supply and installation of the earthing including all civil works, mechanical connections, buried connections and above ground bonding. A large proportion of the products installed on this site were designed and manufactured in our Pinkenba warehouse in Brisbane.

For further information on this project, please contact the team at

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