Utility Scale Storage

The world’s largest solar PV and battery energy storage project has locked in renewed political support with the Northern Territory government confirming it will introduce special legislation into parliament this week that will facilitate the development of the giga-scale Australia-Asia PowerLink project.

Researchers from The University of Queensland have developed a new nanotechnology that they say more than doubles the lifespan of high-voltage lithium-ion batteries, paving the way for higher density and lower-cost energy storage solutions.

The New South Wales Government has outlined plans for another coordinated renewable energy zone which will deliver at least 2.5GW of new network capacity as the state’s transitions from fossil fuels towards renewable power accelerates.

The Australian arm of U.K.-based global fund manager Octopus Group and the Clean Energy Finance Corporation have added another renewable energy project to their joint venture’s portfolio, announcing they will work with the founders of the Blind Creek Solar Farm near Bungendore in regional New South Wales to deliver the 300MW agri-solar and battery project.

AGL has committed to another big battery project as it seeks to add at least 850MW of new large-scale energy storage to its portfolio by 2024, confirming it will begin construction of a 50MW/50MWh battery at Broken Hill which will improve energy security in regional New South Wales.

Developed by researchers in Spain, the battery uses renewable electricity to melt low-cost metals such as silicon or ferrosilicon alloys to produce and store latent heat, which is in turn used by a thermophovoltaic generator to produce power. According to its creators, the device may store electricity at a cost of €10 per kilowatt-hour (AU$14.6/kWh) for a 10MWh system.

The New South Wales Government is advancing its plan to build the “biggest network battery in the southern hemisphere” by 2025 as it looks to shore up a reliable energy supply ahead of the impending closure of the coal-fired Eraring Power Station.

Pumped hydro energy storage is ideally positioned to support reliability and reduce volatility in the energy market as Australia shifts from fossil fuels towards renewable power with former prime minister Malcolm Turnbull labelling the technology the “ultimate long-duration storage” solution.

Following the early success of its solar integrated Gannawarra Energy Storage System, Edify Energy has again opted for Tesla Megapack as its preferred battery energy storage system for its combination of storage projects totalling 150MW/300MWh in the Riverina region of New South Wales.

Vattenfall, SSAB and LKAB have reached the halfway point in the construction of a rock cavern storage facility in a coastal city in northern Sweden. The 100-cubic-metre facility is being constructed 30 metre below ground and will begin storing green hydrogen next year.