Market information

Find information on transaction trends and volumes, emission units transferred, privately held units and historical data.

The New Zealand Emissions Trading Register (the Register) houses and tracks all emission units used in the New Zealand Emissions Trading Scheme (ETS). As such, it holds a great deal of data that is useful for the carbon market. 

You can view aggregate transaction trends for the domestic carbon market, including the number of transactions and units transferred every month.

You can also view tables containing historical data for transactions and units transferred since the Register began operation.

Transaction trends

Each month we provide information about the number of transactions occurring between accounts in the New Zealand Emissions Trading Register.

Emission units transferred

View monthly data on the number and type of units traded between accounts in the New Zealand Emissions Trading Register.

Transactions by volume

We provide a monthly report on the size of unit transactions within the New Zealand Emissions Trading Register.

Privately-held units

Individuals and organisations are able to own NZUs. We provide information about private holdings to help people understand the New Zealand carbon market

Voluntary unit cancellations

People or companies can voluntarily cancel emission units to offset their emissions and can opt to have their cancellation information published here.

Ministerial New Zealand Unit (NZU) Issuance Directions

You can view all of the Ministerial NZU Issuance Directions here.

Kyoto Units from the first commitment period

Find out more about the True-up process and eligible units in the ETS after the first commitment period.