Utility Scale Storage

Melbourne startup RayGen, which merges solar generation with long-duration electro-thermal energy storage, has connected its flagship Victorian project to the grid – albeit partially, as the company is still waiting on the final pieces of equipment to complete the 17 hour duration electro-storage system component.

Australian renewable energy developer Genex Power has bought Queensland’s Bulli Creek storage project from Solar Choice, saying it plans to develop the site in five stages – the first of which will include a 400 MW / 1,600 MWh big battery.

US engineering company Bechtel will support planning for proposed Queensland pumped hydro and energy storage facility, Big-T, at Lake Cressbrook in the state’s southeast. The project involves a 400 MW pumped hydro facility with 10 hours of storage and a 200 MW/200 MWh battery system.

Bringing on board gas giants APA Group, Inpex Corporation, Osaka Gas and distributor Jemena, AGL and Fortescue Future Industries say their Hunter Valley coal to hydrogen hub conversions could be as large as 2 GW – though the insistence on green hydrogen does appear somewhat muddied by the new partnerships.

Miner Rio Tinto has received offers to build more than 4 GW of solar and wind capacity after the company sought proposals to help it cut carbon emissions at its Queensland operations.

Researchers from Deakin University in Victoria have announced a breakthrough in the development of new polymer electrolyte chemistries that they believe could pave the way for a safer and cheaper alternative to current lithium-ion battery energy storage technologies.

Construction has commenced on what will be Western Australia’s biggest battery energy storage system with the first of the battery units installed for the 100 MW/200 MWh Kwinana Big Battery being built at the site of the decommissioned Kwinana Power Station near Perth.

New South Wales is a step closer to adding another big battery to its network with Greenspot securing planning approval from state government authorities for a massive 500 MW/1,000 MWh grid-connected battery to be developed at the site of the defunct coal-fired Wallerawang Power Station near Lithgow.

Mitsubishi Power Americas and Magnum Development are set to begin construction on a 300 GWh underground storage facility in the US state of Utah. It will consist of two caverns with capacities of 150 GWh, to store hydrogen generated by an adjacent 840 MW hydrogen-capable gas turbine combined cycle power plant.

New South Wales has given the green light for another large-scale solar PV and battery project with German-owned renewable energy developer Wirsol Energy announcing it has secured amended development approval for a 445 MW solar and energy storage hybrid power plant in the state’s central west.