Flow Power signs offtake from ACEN Australia’s 400-MW Stubbo Solar

• Flow Power agreed to buy 10% of output from ACEN Australia’s newly commissioned 400-MW Stubbo Solar farm in New South Wales.

Australian retailer Flow Power has inked a power purchase agreement to acquire 10% of generation from ACEN Australia’s 400-MW Stubbo Solar project in New South Wales, adding a sizable slice of daytime renewable supply to its portfolio of corporate and large-user customers. The deal underscores the durability of retailer-led offtake in Australia’s rapidly evolving market, where demand for fixed-price green electrons and firming options keeps rising.

Stubbo’s scale matters. A 400-MW utility-scale plant on single-axis trackers pushes substantial energy into the grid during daylight hours, easing wholesale prices and reducing gas burn. For Flow Power’s customers—manufacturers, logistics operators, data-rich businesses—the contract translates into predictable costs and verifiable emissions reductions. Layered with demand-response strategies and on-site assets, the PPA can materially cut exposure to volatile evening peaks.

Technically, Stubbo follows a bankable recipe: high-efficiency modules, robust DC/AC sizing, string inverters for granular fault isolation, and plant-level controls aligned with Australian grid codes for reactive power and ride-through. While storage is not part of this offtake, the site and region are well-suited to future battery additions—two to four hours of duration that can shift energy into the dusk peak, improve capture rates, and provide fast frequency response across the National Electricity Market (NEM).

For Flow Power, portfolio balance is strategic. Daytime solar is paired with wind offtake and market-based firming to smooth hourly profiles, while smart software schedules energy-intensive processes into low-price windows. Customers increasingly want more than certificates; they’re asking for hourly matching and carbon-aware dispatch that aligns consumption with renewable availability.

Community and environmental considerations at Stubbo mirror modern Australian practice: traffic and noise management, glare assessments, biodiversity-friendly groundcover beneath arrays, and decommissioning provisions with recycling pathways. Once fully stabilized, unified SCADA and analytics will drive predictive maintenance—thermal inspections, IV-curve tracing, targeted cleaning—that add basis points of availability over decades.

In a market defined by electrification and data-center growth, Flow Power’s slice of Stubbo is both hedge and signal: a commitment to scale renewable supply and to the operational discipline needed to turn PPAs into tangible savings and credible decarbonization.