June 5, 2020 Read More →

Fluence says batteries are a quicker, cheaper solution for Australian transmission constraints

Renew Economy:

U.S. battery storage technology company Fluence is proposing two big batteries – each of 250MW and 30 minute storage – could be installed as a faster and potentially cheaper solution to solve the transmission limits between the two biggest electricity markets in Australia, NSW and Victoria.

Fluence – a joint venture between Siemens and AES – is proposing two 250MW/125MWh battery-based energy storage systems (one in Wagga Wagga and the other in Morang) that it says will help AEMO and TransGrid address transmission network congestion issues.

It argues that the two batteries – which could operate in unison, with one charging at one end while the other discharges at the other end, and so increase the transmission flows – could be up in running within 18 months, far quicker than any traditional “network option” which would likely only be completed in 2027/28. And it can be scaled.

“Operating BESS units at Wagga Wagga and South Morang in tandem to create a virtual transmission line (one system discharging, the other charging) can help both import and export capability between New South Wales and Victoria,” it says. “This additional support on either end of the transmission interconnector will enable more efficient use of the existing lines, alleviating current and future limitations.”

The batteries as proposed would be significantly larger than the large-scale batteries currently deployed in Australia, including Neoen’s Hornsdale Power Reserve in SA – aka the Tesla big battery – which is being expanded to 150MW/194MWh from its current world-leading capacity of 100MW/129MWh.

Fluence says its proposal for a “virtual transmission line” solution will add much needed capacity to the Victoria-NSW interconnector, “widening the highway” to facilitate more large-scale electricity transfers between NSW and Victoria. It also sees it as a blueprint for the future, with battery storage now touted as a more efficient and scalable way to expand and augment existing transmission lines as networks assess needs moving forward. The regulator has already supported this idea after approving a traditional network upgrade to the main link between NSW and Queensland.

[Giles Parkinson]

More: Fluence proposes two big batteries to upgrade Victoria-NSW transmission line

Comments are closed.