Edify Energy to Proceed with 2,400MWh Solar-Plus-Storage Sites in Australia

Why It Matters

By locking in long‑term off‑take from Rio Tinto and securing CIS‑backed revenue, the projects de‑risk large‑scale renewable storage in Australia, accelerating the shift to low‑carbon power for heavy industry. The novel financing structure could become a template for future Australian greenfield renewables.

Key Takeaways

• Edify Energy secures financial close on 600 MW/2,400 MWh BESS projects.
• Rio Tinto will purchase 90% of power for its Gladstone aluminium plant.
• Projects use DC‑coupled hybrid design with grid‑forming inverters.
• Financing uses first greenfield renewable portfolio platform in Australia.
• CIS Tender 4 awards provide revenue support for 6.6 GW generation.

Pulse Analysis

Australia’s transition away from coal is increasingly dependent on large‑scale solar farms paired with battery storage, a combination that can deliver both clean energy and grid stability. Edify Energy’s newly financed Smoky Creek and Guthrie’s Gap projects in Queensland exemplify this trend, offering 720 MWp of photovoltaic capacity alongside a 600 MW/2,400 MWh battery energy storage system. The developments are strategically located on the Gaangalu Nation’s traditional lands and are designed to supply Rio Tinto’s aluminium smelter in Gladstone with low‑carbon power, marking one of the country’s most ambitious industrial renewable deals.

The sites employ a DC‑coupled hybrid architecture, where solar modules feed direct current straight into the battery via DC‑DC converters before a single grid‑forming inverter converts the combined output to alternating current. This configuration reduces conversion losses, captures energy that would otherwise be clipped during peak solar output, and provides fast, controllable dispatch when demand spikes or solar generation dips. Grid‑forming inverters further enhance network resilience by actively supporting voltage and frequency, a critical capability as Australia retires aging thermal generators and relies more on intermittent renewables.

Financing the projects required a novel approach: a greenfield renewable portfolio platform backed by La Caisse and a 14‑member lender syndicate, the first of its kind in the Australian market. Coupled with long‑term revenue guarantees from the government’s Capacity Investment Scheme Tender 4 and a 20‑year off‑take agreement with Rio Tinto, the structure dramatically lowers investment risk. This model demonstrates how coordinated policy support, industrial demand, and innovative capital structures can accelerate deployment of solar‑plus‑storage assets, setting a precedent for future projects targeting heavy‑industry decarbonisation.