Australian Carbon Credit Unit (ACCU) supply remained strong in May, bringing total issuances over January-May 2025 closer to the combined volume in the first half of 2024, according to data published on 19 June.
A total of 2.11mn ACCUs were issued in May, up from 1.99mn in April, register data released by the Clean Energy Regulator (CER) show. This takes total supply over January-May 2025 to 7.15mn, close to the 7.66mn issued in the first six months of 2024. The regulator did not publish monthly data before 2025.
Vegetation methods, mainly from human-induced regeneration (HIR) and avoided deforestation (AD) projects, accounted for 1.32mn ACCUs in May, or nearly 63pc of the total. This was up from just 29pc in April, but below shares of around 82-90pc in February and March.
Waste methods, mostly from landfill gas projects, made up 670,596 units, or approximately 32pc of the total. Savana burning, agriculture and energy efficiency methods accounted for the remaining issuances in May (see chart).
The high number of issuances in April was because of a "backlog of crediting applications for waste methods", which was expected to clear in the second quarter, the CER said last week. A total of 3.04mn ACCUs were issued in the first quarter, and 5mn applications were "on hand" as of 31 March 2025, the regulator said. The CER maintained its supply forecast of 19mn-24mn for 2025.
Bioenergy company LMS Energy remained the largest recipient of new ACCUs in May at 329,879 units, followed by environmental market investor GreenCollar's subsidiary Terra Carbon at 315,420 units and waste management firm Veolia at 154,015 units.
ACCU spot prices have been stable in June but continued to rise slowly on the month. The Argus ACCU generic no avoided deforestation (No AD) spot price assessments averaged A$35.65/t CO2 equivalent ($23.20/t CO2e) so far in June, up from A$35.35/t CO2e in May and the highest so far in 2025.
