The Spain-based renewable energy firm X-Elio will add a 148-MW battery energy storage system (BESS) to its 200-MW Blue Grass solar farm in Queensland, marking the company’s first hybrid solar storage project in Australia.
X-Elio Expands Blue Grass Solar Farm with Battery Storage
X-Elio will enhance its operational Blue Grass solar farm with battery storage across two phases. The first phase involves installing a 60 MW battery energy storage system (BESS), with mechanical completion expected by late 2025.
A second phase will add another 88 MW of storage to the project in Queensland’s Western Downs region, slated for completion in 2026.
“Following our 60 MW BESS project in the US and our entry into the German battery company ECO STOR, we are now continuing to implement our storage strategy in Australia. This [Blue Grass] project will support grid resiliency in Queensland and enhance our solar farm’s resilience to price volatility. We are excited about the prospects of BESS in Australia and believe its deployment greatly supports grids with high renewables penetration,” said Mirko Molinari, X-Elio’s Chief Commercial Officer.
While specific details about the battery technology and duration have not yet been announced, the system is expected to use lithium-based technologies.
Blue Grass PV Park Delivers 420 GWh Annually
Commissioned in November 2022, the Blue Grass solar farm in Queensland’s Western Downs region uses 375,000 bifacial modules and generates approximately 420 GWh annually. Its output is sold through off-take agreements to Salesforce.com Inc., the Queensland government-owned generator Stanwell Corp, and power retailer Zen Energy.
Integrating the BESS will allow the solar farm to store excess energy generated during peak solar hours and release it during periods of high demand or low generation. This capability enables the project to participate in grid services, enhancing energy reliability and stability by delivering stored power when it’s needed most.
Technology Partners and Next Steps
The Blue Grass expansion will incorporate BESS technology and grid-forming battery inverters, transforming the plant into a hybrid power source capable of delivering essential grid services. X-Elio is partnering with Ingeteam and Narada as technology providers to enhance the existing infrastructure and improve grid support.
This project will be followed by the Sixteen Mile solar farm, another of the company’s hybrid ventures in the Western Downs. That facility will combine 350 MW of solar power with a 120 MW/240 MWh battery system.
