Cost of Net Zero

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Australian Net Zero Cost Clock

Based on published Clean Energy Regulator data.

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Estimated federal renewable certificate cost since 1 January 2026

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Last updated: calculating...

Basis of calculation

Component	Calculation	Estimated annual cost
Large-scale Generation Certificates	33,000,000 LGCs × assumed average LGC price of $30	$990 million
Small-scale Technology Certificates	24,100,000 STCs × $40 STC clearing-house price	$964 million
Total	LGC cost + STC cost	$1.954 billion/year

What is included?

This clock currently includes only the federal Renewable Energy Target certificate schemes: Large-scale Generation Certificates and Small-scale Technology Certificates.

What is not included?

This estimate does not include state subsidies, feed-in tariffs, Capacity Investment Scheme underwriting, Rewiring the Nation, transmission costs, battery subsidies, grid-stability costs, curtailment costs, or other indirect costs of the energy transition.

Notes and sources

• The Clean Energy Regulator states that the Large-scale Renewable Energy Target is constant at 33,000,000 MWh until 2030.
• One LGC represents 1 MWh of eligible renewable electricity.
• The 2026 Renewable Power Percentage is 16.67%.
• The 2026 Small-scale Technology Percentage is 11.67%.
• The Clean Energy Regulator estimates 24.1 million STC creations for 2026, excluding battery STCs.
• The STC clearing-house price is $40 per certificate.
• The $30 LGC price is an assumption and should be updated periodically using published market data.

This is an estimate, not an official government figure. The purpose is to provide a transparent running estimate based on published scheme targets and certificate values. 

Version 1.0 - Updated 24 June 2026