Edify Secures Funding for Rio Tinto Solar-BESS Duo
- Edify Energy hits financial close on two Queensland hybrid solar-plus-storage projects for Rio Tinto—720MWp solar, 600MW/2,400MWh batteries—boosting bankability, grid stability, and evening power delivery.
Edify Energy has reached financial close on two adjacent hybrid solar-plus-battery projects in Queensland—Smoky Creek and Guthrie’s Gap—under a contract with Rio Tinto-backed offtake. Together they will add 720 MWp of solar capacity and 600 MW of battery power paired with 2,400 MWh of storage. The milestone locks the capital stack and bankable contracting arrangements, enabling construction to proceed on a defined schedule.
The deal underscores growing participation from heavy industry in financing firmed renewables as Australia’s grid shifts away from coal. With large-duration storage, the assets are designed for meaningful evening energy delivery, grid stability support, and congestion management. The co-location also allows shared interconnection and integrated controls to improve economics and utilization, with execution now moving to procurement and commissioning.
How will Edify Energy’s 720MWp solar-plus-battery projects strengthen Queensland’s firm power?
- Increase dispatchable “firm” capacity: Adding 600 MW of battery storage alongside 720 MWp of solar gives Queensland a larger pool of controllable generation that can deliver power after sunset and during low-wind/low-solar periods when output would otherwise fall.
- Strengthen grid reliability during peak demand windows: Batteries with 2,400 MWh of storage can be used to cover evening ramping needs—helping reduce the risk of supply shortfalls during the highest demand hours.
- Improve frequency and voltage stability: Hybrid solar-plus-battery plants can respond quickly to grid disturbances, supporting power quality and making it easier for network operators to maintain system stability as more variable renewables come online.
- Reduce reliance on fast-start generation: By shifting energy availability into later hours, the projects can lessen the operational burden on incumbent fossil “peaking” units and improve overall system efficiency.
- Provide resilience against renewable variability: Co-located storage helps smooth fluctuations in solar output (cloud transients and seasonal/diurnal patterns), lowering variability at the grid connection point.
- Manage network congestion more effectively: Firmed renewable output can be scheduled to align with local grid needs, potentially reducing curtailment and improving the usefulness of capacity on constrained corridors.
- Enable more predictable power delivery for load serving: Bankable contracting and locked-in project delivery timelines support more dependable offtake profiles—important for industrial customers seeking consistent power supply.
- Support Queensland’s transition away from coal: Firmed renewables help replace some of the grid services previously provided by coal plants, supporting a smoother retirement pathway while keeping reliability targets in view.
- Optimize shared infrastructure and grid interfaces: Using shared interconnection and coordinated controls can reduce duplication of grid connection costs and improve how the combined system manages exports and dispatch.