Basslink Gets Final Revenue Determination for Operation as a Regulated Service

Key Takeaways

• AER approves $459.5M revenue recovery for 2026‑30
• Revenue 0.4% below Basslink’s proposal
• 75% of costs charged to Victorian customers
• FCSPS enables full interconnector capacity
• Conversion to prescribed service pending APA decision

Summary

On 27 February 2026 the Australian Energy Regulator (AER) issued its final revenue determination for Basslink Pty Ltd’s transmission cable for the 2026‑30 control period. The regulator approved a nominal, smoothed revenue of $459.5 million, marginally below Basslink’s revised $461.2 million proposal. Cost allocation will see 75 % of the revenue recovered from Victorian customers and 25 % from Tasmanian customers. The decision also references the Frequency Control Special Protection Scheme (FCSPS) and leaves the conversion to a prescribed transmission service pending APA’s approval.

Pulse Analysis

The Australian Energy Regulator’s final determination anchors Basslink’s revenue at $459.5 million for the 2026‑30 period, establishing a predictable cash flow for the interconnector’s owner, APA. By smoothing the revenue figure, the AER mitigates short‑term market volatility while ensuring the asset can fund maintenance and upgrades. This decision follows Basslink’s June 2025 application to shift from a market network service to a prescribed transmission service, a move that could streamline regulatory oversight and reduce compliance complexity.

Cost recovery is split 75 % to Victorian customers and 25 % to Tasmanian customers, reflecting the interconnector’s primary load‑flow direction. For Victorian households, the modest uplift in the first year is expected to flatten over the subsequent three years, while Tasmanian bills see a smaller incremental impact. The inclusion of the Frequency Control Special Protection Scheme (FCSPS) in the determination highlights Basslink’s role in maintaining system stability; by allowing full‑capacity operation, the scheme can improve overall grid reliability and support higher renewable penetration across the south‑east energy market.

Strategically, the AER’s decision positions Basslink at a crossroads. APA must decide whether to formalise the conversion to a prescribed transmission service, a step that could unlock new revenue streams and align the asset with long‑term national energy policy. Investors will watch for any announcements on ancillary services tied to the FCSPS, as these could generate additional income outside the regulated revenue cap. Ultimately, the determination provides market participants with clearer cost signals, fostering investment confidence in Australia’s critical inter‑state transmission infrastructure.