Notice of Approval of Unique Emissions Factors

The Environmental Protection Authority has approved the use of the following unique emissions factors in the New Zealand Emissions Trading Scheme, under section 91 of the Climate Change Response Act 2002 and in accordance with the Climate Change (Unique Emissions Factors) Regulations 2009:

Date of Approval	Participant Name	Description of Activity	Details of UEF
10 March 2025	Contact Energy Limited	Using a Geothermal fluid >4,000 tonnes CO2e/yr	Wairakei 0.0022 tCO2e/t steam
			Te Mihi 0.0045 tCO2e/t steam
			Te Huka 0.00061 tCO2e/t steam
			Tauhara 0.0056 tCO2e/t steam
14 February 2025	Hastings District Council	Operating a disposal facility	0.286 tCO2e/t waste
21 February 2025	Marlborough District Council	Operating a disposal facility	0.384 tCO2e/t waste
17 February 2025	Mercury NZ Limited	Using a Geothermal fluid >4,000 tonnes CO2e/yr	Kawerau II 0.0143 tCO2e/t steam
			Any other plant using geothermal steam 0.0069 tCO2e/t steam
10 March 2025	Ngawha Generation Limited	Using a Geothermal fluid >4,000 tonnes CO2e/yr	Ngawha III 0 tCO2e/t waste
21 February 2025	Porirua City Council, Wellington City Council	Operating a disposal facility	0.148 tCO2e/t waste
14 February 2025	Scope Resources Limited	Operating a disposal facility	0.327 tCO2e/t waste
20 February 2025	Te Ahi O Maui Limited Partnership	Using a Geothermal fluid >4,000 tonnes CO2e/yr	0.0119 tCO2e/t steam
20 February 2025	The Dunedin City Council	Operating a disposal facility	0.463 tCO2e/t waste
21 February 2025	Timaru District Council	Operating a disposal facility	0.771 tCO2e/t waste
14 February 2025	Wellington City Council	Operating a disposal facility	0.3565 tCO2e/t waste

Tags

Notice Number