National Arboretum Canberra Off-Grid Photovoltaic System

The iconic National Arboretum in Canberra features 94 forests of rare, endangered and symbolic trees from around the world. Tens of thousands of trees grow across the 250 hectare site, making it one of the world’s largest living collections of rare, endangered and significant trees.

Although in the heart of the city, extending the electricity grid to the Arboretum’s works depot was expensive compared to an off-grid system, so ITP Renewables was commissioned to design, supply, install and commission a solar and battery system more typically associated with remote locations. The system comprises of:

  • 30 kWp solar PV system is mounted on two carport structures with six PV inverters
  • An 80 kWh lithium-ion battery with three off-grid inverters housed in a 20-foot shipping container
  • A 10 kW diesel generator to provide back-up power for up to 1% of the year
  • performance monitoring, logging and visualisation

Additional benefits are 24 hour power to the site, a quiet work yard with the removal of the daytime generator and significant cost savings on diesel. The system was opened by Mr Shane Rattenbury MLA, Minister for Climate Change and Sustainability.

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