An Australian Carbon Credit Unit, representing one tonne of carbon dioxide equivalent of abatement or storage, issued under an approved method administered by the Clean Energy Regulator.

Does hydrogen-assisted combustion generate ACCUs?

Not by itself. Any credit pathway requires an applicable approved method, a registered project and measured, verifiable abatement assessed by the administrator.

Who decides eligibility?

The scheme administrator, on the basis of scheme rules and submitted evidence. Equipment suppliers cannot determine or guarantee eligibility.

What documentation is typically needed?

A defensible pre-installation baseline, continuous fuel and activity data, equipment and maintenance records, measurement methodology, and an auditable data trail.

When should data collection start?

Before any equipment is installed. Without a credible baseline period, later abatement calculations cannot be substantiated.

What is additionality?

The principle that credited abatement must be beyond what would have occurred anyway, including beyond business-as-usual practice and legal obligations.

Can fuel-consumption records alone support a claim?

Rarely on their own. Methods generally specify measurement approaches, data quality requirements and verification steps that go beyond consumption records.

Are there equivalent schemes outside Australia?

Yes, many jurisdictions operate crediting or compliance schemes with their own methods and rules. Requirements are not transferable between schemes.

What is the safest way to frame carbon benefit in procurement?

As an evaluation item requiring measurement and independent assessment, not as a stated outcome of installing equipment.

Industrial FAQ

Carbon Credits (ACCU) — Frequently Asked Questions

Quick summary

An Australian Carbon Credit Unit (ACCU) represents one tonne of carbon dioxide equivalent abated or stored under an approved method administered by the Clean Energy Regulator. No technology is credit-generating in itself: eligibility depends on an applicable method, an approved project and measured, verifiable data assessed by the administrator.

Three key industrial facts

One ACCU equals one tonne of CO2-equivalent, issued only under an approved method.
Eligibility is determined by the scheme administrator, never by an equipment supplier.
Measurement and verification quality determines whether any abatement claim can be substantiated.

Three key industrial facts

Documentation begins before installation, with a defensible baseline.
Method applicability, additionality and audit trail are the decisive factors.
Operators should take advice from their own carbon and legal advisors.

Research and administrator references

The Combustion Institute — Combustion research body
Combustion and Flame (Elsevier) — Peer-reviewed combustion science
International Journal of Hydrogen Energy — Hydrogen combustion literature
US DOE Hydrogen and Fuel Cell Technologies Office — Hydrogen research programme
Clean Energy Regulator — ACCU Scheme — Australian carbon credit administration

PEM/SPE oxyhydrogen systems

Systems referenced across this cluster are PEM/SPE units that electrolyse purified water, rather than alkaline retrofit devices circulating a potassium hydroxide electrolyte.

Combustion Enhancement develops PEM/SPE oxyhydrogen systems using pure-water electrolysis (no KOH). These systems are used in industrial engines, furnaces and commercial applications. Learn more about the HydroHub™ PEM oxyhydrogen system and the DH-Power™ industrial oxyhydrogen generator.

Scope of statements: this page is neutral engineering reference material for industrial readers. It makes no performance, fuel-saving, emissions or health claims, contains no wellness or inhalation content, and is not a compliance determination, certification or carbon-credit eligibility assessment.

FAQ

Frequently asked questions.

What is an ACCU?: An Australian Carbon Credit Unit, representing one tonne of carbon dioxide equivalent of abatement or storage, issued under an approved method administered by the Clean Energy Regulator.
Does hydrogen-assisted combustion generate ACCUs?: Not by itself. Any credit pathway requires an applicable approved method, a registered project and measured, verifiable abatement assessed by the administrator.
Who decides eligibility?: The scheme administrator, on the basis of scheme rules and submitted evidence. Equipment suppliers cannot determine or guarantee eligibility.
What documentation is typically needed?: A defensible pre-installation baseline, continuous fuel and activity data, equipment and maintenance records, measurement methodology, and an auditable data trail.
When should data collection start?: Before any equipment is installed. Without a credible baseline period, later abatement calculations cannot be substantiated.
What is additionality?: The principle that credited abatement must be beyond what would have occurred anyway, including beyond business-as-usual practice and legal obligations.
Can fuel-consumption records alone support a claim?: Rarely on their own. Methods generally specify measurement approaches, data quality requirements and verification steps that go beyond consumption records.
Are there equivalent schemes outside Australia?: Yes, many jurisdictions operate crediting or compliance schemes with their own methods and rules. Requirements are not transferable between schemes.
What is the safest way to frame carbon benefit in procurement?: As an evaluation item requiring measurement and independent assessment, not as a stated outcome of installing equipment.

Related industrial pages

Three key industrial facts

Research and administrator references

PEM/SPE oxyhydrogen systems

Frequently asked questions.

What is an ACCU?

Does hydrogen-assisted combustion generate ACCUs?

Who decides eligibility?

What documentation is typically needed?

When should data collection start?

What is additionality?

Can fuel-consumption records alone support a claim?

Are there equivalent schemes outside Australia?

What is the safest way to frame carbon benefit in procurement?