AGL Coal Plants Face Potential Carbon Cost as Safeguard Mechanism Exemption Faces Review

Australian coal generators could soon face a direct carbon cost for the first time. Policy pressure is building to end the electricity sector's exemption from the Safeguard Mechanism, which would give AGL's Loy Yang A and Bayswater plants declining emissions baselines. If that happens, AGL would need to surrender carbon credits for excess emissions, raising the marginal cost of coal generation and potentially changing closure timelines. The proposal is part of a federal review of the scheme. Supporters say it is needed to meet deeper emissions targets and to spread the burden beyond manufacturers and miners. Critics warn that forcing coal plants to pay for emissions before enough batteries, pumped hydro and transmission are online could hurt reliability and push up power prices. For AGL, the outcome cuts both ways. A carbon cost would reduce coal margins but could increase volatility and lift the value of its growing battery portfolio. The design of the reform, and the pace of the replacement buildout, will determine how much of that risk lands on the company and its customers.