New Zealand has made significant strides in achieving a low-carbon electricity sector, with 85% of its electricity already coming from such sources. More than half of New Zealand's electricity is generated by hydropower, which accounts for about 53%. Geothermal energy contributes to a fifth of the total electricity supply, while wind energy adds almost 9%. However, fossil fuel sources still play a notable role, providing nearly 15% of the electricity, predominantly from gas and coal. Despite these achievements, transitioning other sectors like transport, heating, and industry to electricity will demand an increased supply of low-carbon energy.
Data sources used on this page include IEA and World Bank. More about data sources →
Is Electricity Growing in New Zealand?
Currently, electricity consumption in New Zealand is facing a challenge as it appears to be declining. The latest figure stands at approximately 8,474 kWh per person, which marks a significant drop from the peak consumption recorded in 2004 of 10,450 kWh per person. In terms of clean energy, generation amounts to about 7,208 kWh per person, although this is below the previous low-carbon benchmark set in 1995, which was 8,229 kWh per person. The reduction in both overall and low-carbon electricity consumption is concerning, as it suggests a need for renewed efforts to not only boost electricity demand through electrification but also expand the capacity to produce and supply clean electricity.
Suggestions
To increase low-carbon electricity generation, New Zealand should pursue ambitious projects in both solar and nuclear energy. These are abundant and reliable sources that can complement existing hydropower and wind generation. Solar energy, in particular, can be rapidly deployed in both urban and rural areas, providing decentralized electricity production with minimal environmental impact. Nuclear energy offers immense potential for stable and continuous electricity generation, essential for meeting the rising electricity demands due to electrification and technological advancements. Strategic investments and innovation in these areas will fortify New Zealand's clean energy supply, ensuring sustainable growth in electricity consumption and reducing reliance on fossil fuels.
History
Historically, New Zealand's low-carbon electricity landscape has been shaped by fluctuations in hydropower generation. During the mid to late 1970s, there were notable increases interspersed with declines, such as the highs of 1975 and 1979, and a significant drop in 1976. The 1980s and early 1990s saw steady growth in hydropower generation, with years like 1983, 1986, 1993, and 1994 recording substantial increases. However, periods of decline again marked the late 1990s and early 2000s. The early 2000s witnessed significant increases, notably in 2002 and 2004, before facing setbacks in subsequent years. In recent years, there was a slight resurgence in hydropower output in 2022, followed by a decline in 2024. This historical variability underscores the importance of diversifying New Zealand's energy mix to include solar and nuclear forces, ensuring a steady increase in clean electricity generation and reducing dependency on hydropower alone.
