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Australian city powered by solar energy

26.06.2021

Onslow in Western Australia's Pilbara region has become Australia's largest 100% renewable city, a landmark moment during the successful demonstration of the Onslow Distributed Energy Resources (DER) project.

State-owned regional utility Horizon Power has successfully provided renewable energy to a community of more than 800 people. The microgrid test took place at the end of last month, and lasted a total of 80 minutes. The system consists of a 600 kW ground solar power plant, a 700 kW solar array and a battery system.

"The operation of the 100% renewable Onslow Microgrid marks a significant step towards building a cleaner, brighter and more renewable source of energy for our state," said Western Australia Energy Minister Bill Johnston. "This groundbreaking project demonstrates how distributed energy can be safely integrated at the grid level, unlocking added value from Western Australia's world leader in rooftop solar."

The Onslow project, which replaced diesel and gas generators, was started in 2016. At the first stage, a modular gas-fired power plant with an installed capacity of 8 MW and related infrastructure was built. In the second phase, the construction of a 1 MW centralized solar PV farm and a 1 MWh battery storage system was completed.

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