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Engineering the connection behind large-scale energy storage: Summerfield BESS 1 & 2.

240 MW / 960 MWh. A new 275 kV substation, brownfield augmentation works and approximately 17 km of transmission infrastructure - detailed engineering design by APD Global, now in its commissioning phase.

15 October 2026 · South Australia

Engaged by Enerven and ElectraNet, APD Global delivered the detailed engineering design supporting the connection of Summerfield BESS 1 & 2 to ElectraNet's transmission network.

Now in its commissioning phase, the 240 MW / 960 MWh project includes a new 275 kV substation, brownfield augmentation works and approximately 17 km of transmission infrastructure - bringing together APD Global's multidisciplinary expertise to deliver a safe, reliable and constructible design solution, supporting South Australia's target of 100% net renewable energy by 2027.

It is the same connected scope APD Global carries on storage projects across the NEM and WEM: the substation design, the transmission infrastructure and the BESS grid connection engineering that gets large-scale storage onto the network.

Engineering the Summerfield BESS 1 and 2 connection to ElectraNet - cover of APD Global's project story

The story, from the project team · 15 October 2026 · View on LinkedIn →

Summerfield BESS - the connection scope and ElectraNet network context
The connection scope · ElectraNet network context
Summerfield BESS - the engineering behind the connection
The engineering behind the connection