New Zealand Electricity History, 2000 to 2025

New Zealand generated 38.9 TWh of electricity in 2000 and 44.0 TWh in 2025. New Zealand's electricity demand peaked at 44.3 TWh in 2010. The carbon intensity of New Zealand's electricity went from 185 gCO2/kWh in 2000 to 97 gCO2/kWh in 2025. Figures are Ember annual statistics; Ember's series for New Zealand starts in 2000.

Key Facts

New Zealand generated 38.9 TWh of electricity in 2000 and 44.0 TWh in 2025.
New Zealand's electricity demand peaked at 44.3 TWh in 2010.
The carbon intensity of New Zealand's electricity went from 185 gCO2/kWh in 2000 to 97 gCO2/kWh in 2025.
New Zealand's lowest carbon intensity on record was 87 gCO2/kWh, in 2023.
Gas's share of New Zealand's electricity went from 24.3% in 2000 to 8.7% in 2025, the largest change of any source.

Generation and Demand

2000 to 2025, TWh

New Zealand generated 38.9 TWh of electricity in 2000 and 44.0 TWh in 2025.

Annual statistics through 2025, TWh

New Zealand electricity generation and demand, 2000 to 2025
Year	Generation	Demand
2000	38.9 TWh	38.9 TWh
2001	39.3 TWh	39.3 TWh
2002	40.2 TWh	40.2 TWh
2003	40.4 TWh	40.4 TWh
2004	42.3 TWh	42.3 TWh
2005	42.5 TWh	42.5 TWh
2006	43.0 TWh	43.0 TWh
2007	43.4 TWh	43.4 TWh
2008	43.4 TWh	43.4 TWh
2009	43.0 TWh	43.0 TWh
2010	44.3 TWh	44.3 TWh
2011	43.9 TWh	43.9 TWh
2012	43.8 TWh	43.8 TWh
2013	42.7 TWh	42.7 TWh
2014	42.9 TWh	42.9 TWh
2015	43.6 TWh	43.6 TWh
2016	43.2 TWh	43.2 TWh
2017	43.7 TWh	43.7 TWh
2018	43.7 TWh	43.7 TWh
2019	43.8 TWh	43.8 TWh
2020	43.4 TWh	43.4 TWh
2021	43.6 TWh	43.6 TWh
2022	43.3 TWh	43.3 TWh
2023	42.9 TWh	42.9 TWh
2024	44.0 TWh	44.0 TWh
2025	44.0 TWh	44.0 TWh

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Carbon Intensity

gCO2 per kWh generated

The carbon intensity of New Zealand's electricity went from 185 gCO2/kWh in 2000 to 97 gCO2/kWh in 2025.

Annual statistics through 2025

New Zealand carbon intensity of electricity, 2000 to 2025
Year	Carbon intensity
2000	185 gCO2/kWh
2001	230 gCO2/kWh
2002	198 gCO2/kWh
2003	231 gCO2/kWh
2004	204 gCO2/kWh
2005	254 gCO2/kWh
2006	249 gCO2/kWh
2007	227 gCO2/kWh
2008	247 gCO2/kWh
2009	197 gCO2/kWh
2010	179 gCO2/kWh
2011	166 gCO2/kWh
2012	198 gCO2/kWh
2013	177 gCO2/kWh
2014	149 gCO2/kWh
2015	143 gCO2/kWh
2016	115 gCO2/kWh
2017	132 gCO2/kWh
2018	124 gCO2/kWh
2019	133 gCO2/kWh
2020	142 gCO2/kWh
2021	145 gCO2/kWh
2022	103 gCO2/kWh
2023	87 gCO2/kWh
2024	112 gCO2/kWh
2025	97 gCO2/kWh

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Every Year

Year	Generation	Demand	Carbon intensity	Low carbon share
2025	44.0 TWh	44.0 TWh	97 gCO2/kWh	88.2%
2024	44.0 TWh	44.0 TWh	112 gCO2/kWh	86.0%
2023	42.9 TWh	42.9 TWh	87 gCO2/kWh	89.6%
2022	43.3 TWh	43.3 TWh	103 gCO2/kWh	86.9%
2021	43.6 TWh	43.6 TWh	145 gCO2/kWh	81.7%
2020	43.4 TWh	43.4 TWh	142 gCO2/kWh	80.9%
2019	43.8 TWh	43.8 TWh	133 gCO2/kWh	82.4%
2018	43.7 TWh	43.7 TWh	124 gCO2/kWh	83.4%
2017	43.7 TWh	43.7 TWh	132 gCO2/kWh	81.2%
2016	43.2 TWh	43.2 TWh	115 gCO2/kWh	84.3%
2015	43.6 TWh	43.6 TWh	143 gCO2/kWh	80.1%
2014	42.9 TWh	42.9 TWh	149 gCO2/kWh	79.1%
2013	42.7 TWh	42.7 TWh	177 gCO2/kWh	74.2%
2012	43.8 TWh	43.8 TWh	198 gCO2/kWh	71.7%
2011	43.9 TWh	43.9 TWh	166 gCO2/kWh	76.0%
2010	44.3 TWh	44.3 TWh	179 gCO2/kWh	73.1%
2009	43.0 TWh	43.0 TWh	197 gCO2/kWh	71.7%
2008	43.4 TWh	43.4 TWh	247 gCO2/kWh	64.2%
2007	43.4 TWh	43.4 TWh	227 gCO2/kWh	65.5%
2006	43.0 TWh	43.0 TWh	249 gCO2/kWh	64.8%
2005	42.5 TWh	42.5 TWh	254 gCO2/kWh	64.4%
2004	42.3 TWh	42.3 TWh	204 gCO2/kWh	72.4%
2003	40.4 TWh	40.4 TWh	231 gCO2/kWh	66.1%
2002	40.2 TWh	40.2 TWh	198 gCO2/kWh	69.6%
2001	39.3 TWh	39.3 TWh	230 gCO2/kWh	63.6%
2000	38.9 TWh	38.9 TWh	185 gCO2/kWh	71.8%

Share of Generation by Source

Percent of total generation

Year	Coal	Gas	Other fossil	Hydro	Wind	Solar	Bioenergy	Other renewables
2025	1.7%	8.7%	1.5%	54.0%	9.6%	1.1%	1.3%	22.2%
2024	2.7%	9.8%	1.5%	53.3%	9.8%	0.8%	1.8%	20.3%
2023	1.2%	7.8%	1.3%	61.0%	8.2%	0.9%	1.5%	18.0%
2022	1.7%	10.0%	1.4%	59.8%	6.7%	0.7%	1.7%	18.1%
2021	6.0%	10.7%	1.6%	55.1%	6.0%	0.5%	1.8%	18.3%
2020	3.9%	13.7%	1.5%	55.4%	5.3%	0.4%	1.8%	18.1%
2019	3.6%	12.4%	1.6%	57.9%	5.1%	0.3%	1.8%	17.4%
2018	2.2%	12.9%	1.4%	59.5%	4.7%	0.2%	1.8%	17.2%
2017	1.3%	16.0%	1.5%	57.1%	4.7%	0.2%	1.8%	17.4%
2016	1.0%	13.2%	1.4%	59.5%	5.4%	0.1%	1.9%	17.5%
2015	2.8%	15.6%	1.5%	55.7%	5.4%	0.1%	1.9%	17.0%
2014	3.1%	16.3%	1.5%	56.1%	5.1%	0.1%	1.9%	16.0%
2013	4.1%	20.2%	1.5%	53.4%	4.7%	0.0%	1.9%	14.2%
2012	6.7%	20.1%	1.4%	51.8%	4.7%	0.0%	1.8%	13.4%
2011	3.7%	19.0%	1.3%	56.7%	4.4%	0.0%	1.7%	13.2%
2010	3.2%	22.2%	1.5%	55.3%	3.7%	0.0%	1.7%	12.5%
2009	6.4%	20.6%	1.3%	55.8%	3.4%	0.0%	1.8%	10.7%
2008	9.8%	24.3%	1.7%	51.0%	2.4%	0.0%	1.7%	9.2%
2007	5.9%	27.2%	1.4%	53.9%	2.1%	0.0%	1.7%	7.7%
2006	11.4%	22.3%	1.5%	54.2%	1.4%	0.0%	1.7%	7.4%
2005	12.4%	21.8%	1.4%	54.4%	1.4%	0.0%	1.6%	7.0%
2004	9.8%	16.2%	1.6%	63.8%	0.9%	0.0%	1.5%	6.2%
2003	8.2%	24.1%	1.7%	57.9%	0.4%	0.0%	1.4%	6.4%
2002	3.7%	25.2%	1.4%	61.2%	0.4%	0.0%	1.4%	6.6%
2001	3.9%	31.0%	1.5%	54.6%	0.4%	0.0%	1.8%	6.8%
2000	2.6%	24.3%	1.4%	62.2%	0.3%	0.0%	2.2%	7.1%

Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of 2025.

Cite this page

APA 7

World Power Monitor. (2025). New Zealand Electricity History, 2000 to 2025. https://worldpowermonitor.com/countries/new-zealand/history/

Plain text

World Power Monitor. New Zealand Electricity History, 2000 to 2025. Data as of 2025. Data from Ember. https://worldpowermonitor.com/countries/new-zealand/history/

BibTeX

@misc{wpm_countries_new_zealand_history_2025,
  title = {{New Zealand Electricity History, 2000 to 2025}},
  author = {{World Power Monitor}},
  year = {2025},
  note = {Data as of 2025. Data from Ember.},
  url = {https://worldpowermonitor.com/countries/new-zealand/history/}
}

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