AGL Energy's Battery Transition Meets Regulatory Tariff Pressure

A coal-to-battery earnings transition and regulatory price caps have tested the stock, though a stronger than expected FY26 result reversed some negative sentiment.

24 Sep 2026 · 3 min read

AGL Energy faced regulatory tariff caps and price reductions that pressured retail margins, while its earnings transition through coal plant closures and battery investments drove one fund manager to exit and another to re-enter after a 20 percent decline, before a stronger than expected FY26 result reversed some of the negative sentiment.

An earnings transition prompts an exit, then a value-driven re-entry

Paradice Investment Management said it exited its AGL Energy position given concerns about the earnings impact of its transition phase. Quest Asset Partners said AGL rejoined Origin in the portfolio, having fallen more than 20 percent since Quest's exit in 2024, in contrast to Origin, which had risen 15 percent over the same period, with the drop in AGL providing an opportunity as the fund now forecasts earnings from AGL's NSW battery plant will more than offset the headwind from an expiring very low-cost coal supply contract at its remaining NSW coal-powered generation.

AGL rejoins Origin in the portfolio, with AGL down more than 20% since Quest's exit in 2024. In contrast Origin has risen 15% over the same period. The drop in AGL has provided an opportunity; they are now forecasting that the earnings expected from their NSW battery plant will more than offset the headwind from an expiring very low-cost coal supply contract.

— Quest Asset Partners, Monthly Report, September 2025

Regulatory tariff caps pressure margins, but ease inflation

Pendal Group said the stock fell 7.5 percent after the Victorian Default Market Offer was set for 2026/27, capping the price electricity retailers can charge a small proportion of household and small business customers on standing offers, with less than 20 percent of retail customers on the offer, though it sets a benchmark other tariffs tend to follow, with Victorians expected to see some electricity bill relief in FY27. The stock later rose 3.4 percent after release of the draft Default Market Offer, with retail tariffs expected to fall between 2 and 10 percent depending on state and customer type, with small and medium enterprise prices falling further, representing a headwind to retailer margins but a tailwind for consumers and helpful to the overall inflation picture.

Retail tariffs are expected to fall between 2% and 10% depending on state and customer type, with small and medium enterprise prices falling further. Lower tariffs represent a headwind to retailer margins, but a tailwind for consumers and helpful to the overall inflation picture.

— Pendal Group, Newsletter, March 2026

A soft FY27 outlook, then a stronger than expected result

Pendal Group said the stock fell 6.5 percent after pulling up the bottom end of guidance marginally, with consensus sitting more toward the top, appearing to be tracking toward guidance, though preliminary FY27 guidance was qualitatively soft, pointing to the Domestic Market Obligation outcome alongside potential local and global influences. By August, Pendal said the stock rose 7.2 percent after delivering an in-line FY26 result with a slight beat at dividend, with FY27 guidance slightly below at EBITDA but ahead at net profit after tax, seeing 4 percent increases to consensus FY27 EPS, a 2 percent decline to FY28, and a 10 percent decline to FY29, with the stock rising strongly as positioning and expectations had been negative leading into the result.

What fund managers say they are watching next is whether the NSW battery plant earnings genuinely offset the expiring low-cost coal contract as Quest expects, continued regulatory tariff pressure on retail margins, delivery on the FY27 to FY29 EPS trajectory, and how the broader electricity market oversupply dynamic evolves.