Sydney, NSW – The Australian Energy Market Operator (AEMO) has granted critical Grid Connection Approval to Recurrent Energy’s Sundown Energy Park, a significant hybrid renewable project featuring a 360 MW solar farm paired with a 150 MW / 600 MWh battery energy storage system (BESS). The approval, announced on April 22, 2026, marks a pivotal milestone for New South Wales’ energy transition, promising to power approximately 176,000 households and enhance grid stability within the New England Renewable Energy Zone (REZ).
The Sundown Energy Park is situated approximately 30 kilometres east of Inverell in northern New South Wales, within one of the state’s designated Renewable Energy Zones. This development underscores the accelerating shift towards integrating substantial battery storage with large-scale solar generation to meet Australia’s growing energy demands and decarbonisation targets.
Bolstering Grid Stability and Renewable Integration
Recurrent Energy, the renewable energy development arm of global solar manufacturer Canadian Solar, confirmed the AEMO approval, highlighting successful collaboration with Transgrid and Lumea. The project is designed to connect to the National Electricity Market (NEM) via an existing Transgrid 330 kV transmission line traversing the site.
“This achievement reflects the strong collaboration with AEMO, Transgrid and Lumea, and highlights Recurrent Energy’s continued commitment to delivering innovative, large-scale renewable solutions that strengthen energy systems and accelerate decarbonisation.”
Once operational, the 600 MWh battery component will play a crucial role in firming the intermittent output of the 360 MW solar farm, ensuring a more reliable and consistent power supply to the grid. This capability is vital for managing peak demand periods and providing essential grid services, which are increasingly important as older coal-fired power stations retire across the National Electricity Market.
The integration of large-scale battery storage directly addresses the challenge of renewable energy variability, a key factor in the ongoing transformation of Australia’s energy landscape. While the country has seen record rooftop solar installations, large-scale storage projects like Sundown Energy Park are essential for balancing the grid and ensuring energy security. This move aligns with broader industry trends where developers are increasingly pairing solar generation with substantial battery capacity.
NSW’s Expanding Battery Pipeline
The Sundown Energy Park is a significant addition to New South Wales’ burgeoning battery storage capacity. The state has been actively pursuing large-scale storage solutions, with the NSW government having awarded contracts in February 2026 for six new long-duration battery projects, collectively totalling 12 GWh of storage capacity, slated for completion by 2030. These projects, alongside developments like Sundown, are critical components of what some are calling Australia’s ‘energy superhighway’, designed to transport vast amounts of renewable energy from generation hubs to demand centres.
Recurrent Energy’s Australian portfolio includes other notable projects, such as the Mannum Energy Park in South Australia and the Carwarp Energy Park in northern Victoria. The Carwarp facility, comprising a 171 MW solar farm and a 150 MWh battery, is currently under construction and expected to reach commercial operation later in 2026.
| Project Name | Location | Solar Capacity | Battery Capacity | Status |
|---|---|---|---|---|
| Sundown Energy Park | New England REZ, NSW | 360 MW | 150 MW / 600 MWh | Grid Approved |
| Carwarp Energy Park | Northern Victoria | 171 MW | 150 MWh | Under Construction |
This strategic investment in hybrid solar-battery projects is a testament to the economic viability and operational necessity of energy storage in Australia. The cost of battery energy storage systems (BESS) has seen substantial reductions in recent years, making longer-duration systems more attractive for grid operators and developers. This trend helps to explain why large solar farms are increasingly being developed with integrated battery storage, moving beyond simple generation to provide comprehensive grid services.
The Role of Renewable Energy Zones
The New England REZ is one of several such zones across Australia designed to concentrate renewable energy generation in areas with high-quality resources and strong transmission links. By streamlining connection processes and coordinating infrastructure development, REZs aim to accelerate the deployment of clean energy and drive down costs. The AEMO approval for Sundown Energy Park within this framework is a clear indication of progress in building the infrastructure required for a future powered by renewables.
Australia’s energy storage market is projected for significant expansion, with forecasts indicating a rise to 19.81 GW by 2034, quadrupling its installed capacity in under a decade. Projects like Sundown Energy Park are at the forefront of this transformation, demonstrating the scale and ambition of Australia’s transition away from fossil fuels. As the grid evolves, the ability of battery systems to provide rapid response times for frequency regulation and peak demand management will become increasingly critical.
For Australian households and businesses, the growth of large-scale battery projects like Sundown Energy Park contributes to a more stable and cost-effective energy supply, complementing the benefits of rooftop solar and home battery installations. The increasing reliability of the grid, supported by these advancements, could also indirectly influence the economics of residential energy solutions, potentially enhancing the value proposition of virtual power plant (VPP) programs and smart energy management systems.
This development is a tangible step towards securing Australia’s energy future, proving that large-scale, dispatchable renewable energy is not just a concept but a rapidly expanding reality across the National Electricity Market. The continued advancement of such projects is crucial for meeting Australia’s ambitious emissions reduction targets and ensuring a resilient energy system for decades to come.