Collie Battery Energy Storage System

In line with the WA State Government’s decarbonisation strategy to be delivered by 2030, our Collie Battery Energy Storage System (CBESS) Project forms part of Synergy's decarbonisation strategy.

Coal-fired power generation is being replaced with renewable energy generation infrastructure and energy storage solutions.

CBESS is expected to deliver 64% of the new energy storage capacity announced as part of this plan. 

Location

CBESS is located in the town of Collie, just over 200km south-east of Perth, next to the Collie Power Station on Boys Home Road. The previously cleared, Synergy-owned site is being repurposed for this project.

The site is approximately 2.5 km south west of the Western Power owned 330 kV Schotts Terminal and, once constructed, the CBESS will connect to this terminal.

Layout and size

Battery energy storage systems (BESS) can absorb excess energy generated by rooftop solar PV systems when the sun is shining and discharge when demand for electricity peaks usually in the evening. 

CBESS will be Synergy’s third BESS and one of the biggest in the world, providing around 500 Megawatts (MW) or 2000 Megawatt hours (MWh) of power when fully charged.

CBESS will use 640 container batteries, similar to those used on Synergy's other battery projects in Kwinana; KBESS1 and KBESS2. The batteries will cover approximately 40,000sqm which is about two full sized football ovals or 10 times the size of KBESS1.

Key project dates

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