Auctions are managed on behalf of the government by NZX and EEX (the European Energy Exchange).
NZUs at auction are sold to all successful bidders at the same auction clearing price. The clearing price of each auction can be found here on the ETS auctions site.
There is one remaining auction date for 2025. That is Wednesday 3 December 2025 for 1.5 million NZUs.
View the auction dates and volumes for 2026.
Four auctions are scheduled for 2026, as shown below:
Auction
|
Date
|
Volume available*
|
1
|
Tuesday 3 March 2026
|
1.3 million NZUs
|
2
|
Tuesday 9 June 2026
|
1.3 million NZUs
|
3
|
Tuesday 8 September 2026
|
1.3 million NZUs
|
4
|
Tuesday 1 December 2026
|
1.3 million NZUs
|
Cost containment reserve volume is available across all auctions in 2026 or until all 6.5 million units are sold.
The total volume available for auction in 2026 is 11.7 million units.
If NZUs remain unsold at the end of an auction they will roll-over to the next auction, provided it is in the same calendar year.
For more information on how to participate in NZ ETS auctions please go to the NZ ETS auctions site