Pingarning Hills Carbon Project 2

Pingarning Hills Carbon Project 2 is a soil carbon project located near the small locality of Pingarning, approximately 35 kilometers northwest of Lake Grace in the Western Australian Wheatbelt. Registered in July 2025, the project covers a land area of roughly 667 hectares. The region is predominantly agricultural, characterized by broadacre cropping, typically wheat, barley, and canola, and sheep grazing, which are the primary land uses surrounding the project area.

The project operates under the 2021 Soil Carbon methodology (Estimation of Soil Organic Carbon Sequestration using Measurement and Models). This method requires the proponent to establish a baseline of soil organic carbon levels through physical soil core sampling. To generate Australian Carbon Credit Units (ACCUs), the landholder must introduce new management activities designed to increase carbon sequestration. In this specific case, the project involves applying synthetic or non-synthetic fertilizers to address material soil deficiencies. By correcting these nutrient imbalances, the project aims to boost plant growth and root biomass, thereby increasing the volume of carbon stored in the soil profile over the 25-year crediting period.

Environmentally, the Pingarning area is situated in a semi-arid, Mediterranean climate zone with winter-dominant rainfall. The average annual rainfall is generally low, often ranging between 300mm and 350mm, which presents a challenging environment for building soil carbon compared to higher rainfall zones. The soils in this part of the Wheatbelt are typically ancient and weathered, often consisting of sandy duplex soils (sand over clay) or gravelly loams. These soil types can be susceptible to salinity and acidity, making the "material deficiency" correction a critical agronomic step for both productivity and carbon sequestration.

The proponent, Agriprove Solutions Pty Ltd, is a major developer in the Australian soil carbon market and has been active in expanding projects into Western Australia. This project likely serves as a companion to other operations in the area, potentially leveraging economies of scale for soil sampling and management. The focus on nutrient application suggests a targeted approach to overcoming specific chemical constraints in the soil, which is a common strategy to unlock sequestration potential in the nutrient-poor soils of Western Australia.