Hunter Valley Operations mine

Hunter Valley Operations mine is a coal mining facility operated by HV OPERATIONS PTY LTD in NSW. Like all covered facilities, underground and open-cut coal operations emit methane and energy-related CO₂. Under Australia's Safeguard Mechanism, Hunter Valley Operations mine must keep its annual emissions below a stepping-down baseline — or purchase carbon credits to cover any overage.

In 2023–24, Hunter Valley Operations mine reported emissions of 637 kt against a baseline obligation of 491 kt — an overage of 146 kt. The facility covered the overage through a combination of ACCUs and SMCs.

Purchasing credits is legal and intended by the Safeguard Mechanism's design — the policy deliberately allows facilities to choose between cutting on-site emissions or funding abatement elsewhere in the economy. Whether credit purchases represent genuine long-term decarbonisation depends on whether the facility's absolute emissions are trending down over time. The chart above shows the trajectory since reporting began. This question applies to all covered facilities under the Safeguard Mechanism, not Hunter Valley Operations mine specifically.

Across the coal mining sector, 8 of 8 covered facilities reported emissions above their baseline in 2023–24. The table below compares Hunter Valley Operations mine with other coal mining facilities covered by the Safeguard Mechanism.