Billions in Solar and Battery Projects Just Kicked Off Across Australia

Construction kicked off on the Hunter-Central Coast Renewable Energy Zone (REZ) this month. This is a $590 million transmission upgrade in the Upper Hunter that will boost the grid's transfer capacity by at least 1 GW and enable 1.8 GW of new renewable generation and storage to connect.

The project includes upgrades to roughly 85 km of existing sub-transmission lines, improvements to substations including Kurri Kurri, and two new 132 kV substations at Sandy Creek and Antiene in the Muswellbrook area. EnergyCo (the NSW government's infrastructure delivery body) is running it, with Ausgrid as network operator.

The numbers that matter for local employment: 590 construction jobs and 220 permanent positions once operational. For context, the Hunter has been wrestling with what comes after coal for years now. This is a concrete answer, literally, to that question.

Think of a REZ like building a new highway before the suburbs go in. You need the transmission capacity in place before the solar farms and batteries can connect. Without it, you end up with renewable projects that are built but cannot export their energy. The Hunter REZ is designed to prevent exactly that bottleneck.

Edify Energy appointed DT Infrastructure as the EPC contractor for two solar-plus-storage projects in Queensland that, combined, represent 3.6 GWh of battery storage. To put that in perspective, the Tarong and Swanbank mega batteries that Queensland switched on earlier this year totalled 1.1 GWh. These new projects are more than three times that.

Flow Power acquired the Dunedoo Energy Project in the Warrumbungle Shire, NSW: a 55 MW solar farm paired with a 60 MW battery, covering 92 hectares with about 175,000 panels. Enough to power roughly 20,000 homes. Construction starts this year. What makes this one notable is that Flow Power will develop, build, own, and operate it themselves. Vertical integration like that is still unusual in Australian renewables.

Meanwhile, in northern Victoria, the 108 MW Lancaster Solar Farm was inaugurated on 18 March. Developed by Danish company European Energy, it features about 170,000 panels and a long-term power purchase agreement with Apple (Apple's first Australian solar deal). A Memorandum of Understanding was signed with the Yorta Yorta Nation Aboriginal Corporation covering workforce participation and cultural protection. Danish King Frederik X and Queen Mary attended the ceremony alongside Australian Energy Minister Chris Bowen.

European Energy has a 10 GW pipeline of projects planned for Australia. Lancaster is just the first cab off the rank.

On 24 March, Queensland launched the $200 million North West Energy Fund. Managed by Queensland Investment Corporation (QIC), it targets private-sector renewable energy, battery, and microgrid projects in the state's northwest, covering communities west of Hughenden including Mount Isa, Cloncurry, Julia Creek, and Richmond.

The backstory is the Copperstring transmission project, a nearly 1,000 km high-voltage line between Townsville and Mount Isa. Rising construction costs forced the government to prioritise the eastern section (Townsville to Hughenden, targeted for 2028) and defer the western link. This fund is the alternative for the communities that got left off the near-term grid connection timeline.

Remote microgrids and standalone battery systems are a different challenge to grid-connected renewables. The economics are different, the technical requirements are different, and the communities they serve are often mining-dependent. QIC is conducting market sounding to identify viable projects. If you are in northwest Queensland, this fund is designed specifically for your situation.

This is the one that might have the biggest long-term implications. Stellar PV's planned 2 GW solar silicon ingot and wafer manufacturing plant received “Major Project Status” from the Australian government in March. That designation fast-tracks regulatory approvals and signals serious government backing.

The facility would sit at the Lansdown Eco-Industrial Precinct, about 40 km south of Townsville. It would use the Czochralski method with automation and AI to produce monocrystalline silicon ingots and wafers, the building blocks of solar cells. Production is targeted for late 2028.

Stellar previously received $4.7 million through the federal Solar Sunshot program for feasibility and engineering design. If it makes it to production, it would be Australia's first large-scale silicon wafer factory and a meaningful step toward reducing our dependence on imported solar components. Currently, virtually every solar panel installed in Australia contains cells manufactured overseas, predominantly in China.

A 2 GW facility would produce enough wafers for roughly 3.5 to 4 million residential solar panels per year. Whether it makes commercial sense at scale against Chinese manufacturing costs is the billion-dollar question. But the political will and funding are clearly there.

Fair question. These are all big utility-scale and industrial projects. But they affect household solar owners in ways that are not always obvious.

Grid-scale batteries like the Edify projects reduce the need for gas peakers during evening peak. That puts downward pressure on wholesale electricity prices, which eventually flows through to what you pay per kilowatt-hour after sunset. More grid storage also means fewer curtailment events where your solar exports get throttled because the network cannot absorb the energy.

Transmission upgrades like the Hunter REZ enable more renewable generation to connect. More supply means lower wholesale prices, which benefits everyone on the grid. And if Stellar PV gets to production, domestic manufacturing could bring more competitive panel pricing and reduce supply chain risk for the Australian market.

The broader picture is this: Australia installed more than 4 GW of rooftop solar last year. But rooftop solar alone cannot fix the grid. You need the transmission, the storage, and the manufacturing to come with it. March 2026 showed all three moving forward at the same time.