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Despite abundant natural resources and a relatively small population, New Zealand is a net importer of energy, in the form of petroleum products. The ratio of non-renewable and renewable energy sources was fairly consistent from 1975 to 2008, with about 70 per cent of primary energy supply coming from hydrocarbon fuels. This ratio decreased to about 60 per cent in 2018. [1] The proportion of non-renewable energy varies annually, depending on water flows into hydro-electricity lakes and demand for energy. [2] In 2018, approximately 60% of primary energy was from non-renewable hydrocarbon fuels and 40% was from renewable sources. [1] In 2007 energy consumption per capita was 120 gigajoules. Per capita energy consumption had increased 8 per cent since 1998. New Zealand uses more energy per capita than 17 of 30 OECD countries. [3] New Zealand is one of 13 OECD countries that does not operate nuclear power stations.
From 1994 to 2018, the energy intensity of the economy per unit of GDP declined by 33 per cent to 2.57 MJ/$. [1] A contributing factor is the growth of relatively less energy-intensive service industries. [4] [5]
Under the Paris Agreement, New Zealand has committed to reducing net greenhouse gas (GHG) emissions by 50% from 2005 levels by 2030, guided by the Climate Change Response (Zero Carbon) Amendment Act 2019. This legislation sets a target for net zero GHG emissions by 2050, excluding biogenic methane from cattle, and specifies reductions in biogenic methane emissions by 2030 and 2050. To facilitate this, the Act established the Climate Change Commission to offer independent advice on climate action and mandated the creation of emissions budgets and reduction plans. The first three emissions budgets, covering the periods 2022-2025, 2026-2030, and 2031-2035, were established in May 2022. The New Zealand Emissions Trading Scheme (NZ ETS), affecting fuel prices, serves as the principal emissions pricing mechanism, with its cap set to align with these budgets. [6] [7]
The country's decarbonization strategy prioritizes the electrification of essential sectors, including buildings, transport, and industry, using renewable energy sources. Initially, the New Zealand Energy Strategy 2011-2021 established a target of achieving 90% renewable electricity by 2025. This target was subsequently broadened to an aspirational goal of attaining 100% renewable electricity by 2030. In support of these goals, the first Emissions Reduction Plan (ERP) seeks to increase the proportion of renewable energy in total final energy consumption (TFEC) to 50% by 2035. [6] [7]
In 2021, New Zealand's Total Energy Supply (TES) amounted to 829.3 Petajoules (PJ), marking an 11% increase compared to 2011. The energy supply composition highlighted a diverse range of sources, with renewables being the largest contributor at approximately 42%, followed by oil at 34%, natural gas at 17%, and coal contributing about 7%. [6] [7]
Fuel | 1990 | 1995 | 2000 | 2005 | 2010 | 2015 | 2020 | 2022[ citation needed ] |
---|---|---|---|---|---|---|---|---|
Coal | 52.22 | 49.55 | 47.32 | 96.77 | 58.40 | 59.85 | 52.62 | 42.72 |
Bituminous & sub-bituminous | 49.77 | 45.65 | 43.98 | 92.85 | 53.93 | 54.86 | 47.23 | 37.69 |
Lignite | 2.45 | 3.90 | 3.33 | 3.93 | 4.47 | 4.99 | 5.39 | 5.04 |
Oil | 156.63 | 207.52 | 245.91 | 284.69 | 270.17 | 289.55 | 285.77 | 283.43 |
Crude | 188.65 | 201.55 | 231.51 | 235.78 | 236.69 | 242.10 | 186.38 | 46.31 |
Petrol | 1.17 | 22.44 | 33.53 | 37.39 | 40.75 | 50.07 | 44.32 | 85.93 |
Diesel | -15.91 | -1.71 | 2.22 | 33.82 | 25.21 | 30.19 | 53.86 | 129.59 |
Aviation fuel & kerosene | -22.43 | -19.43 | -21.04 | -21.19 | -31.49 | -37.54 | -19.46 | 6.07 |
LPG | 5.49 | 5.08 | 5.04 | 8.59 | 6.89 | 9.27 | 9.05 | 7.50 |
Fuel oil | −8.24 | −9.46 | −12.62 | −16.81 | −15.15 | −17.26 | -0.74 | -5.44 |
Others | 7.91 | 9.06 | 7.58 | 7.12 | 7.06 | 12.72 | 12.05 | 13.48 |
Natural Gas | 180.14 | 178.01 | 235.29 | 150.16 | 173.46 | 190.73 | 179.49 | 142.66 |
Renewables | 186.05 | 208.95 | 230.36 | 239.01 | 294.82 | 350.84 | 350.13 | 362.55 |
Geothermal | 62.49 | 63.07 | 82.01 | 83.35 | 138.75 | 193.40 | 200.69 | 204.89 |
Hydro | 83.46 | 99.42 | 87.96 | 83.97 | 89.01 | 88.30 | 87.35 | 94.58 |
Wood & solid biofuels | 38.32 | 44.44 | 58.44 | 66.53 | 57.49 | 56.55 | 48.76 | 47.48 |
Wind | – | 0.00 | 0.43 | 2.21 | 5.89 | 8.51 | 8.30 | 10.31 |
Biogas | 1.78 | 2.32 | 1.52 | 2.71 | 3.09 | 3.44 | 3.77 | 3.71 |
Solar | – | – | – | 0.24 | 0.35 | 0.50 | 0.94 | 1.36 |
Liquid biofuels | – | – | – | – | 0.24 | 0.16 | 0.32 | 0.21 |
Waste Heat | 1.61 | 1.61 | 1.61 | 1.95 | 1.47 | 1.26 | 1.02 | 1.02 |
Total | 576.64 | 645.65 | 760.50 | 772.59 | 798.31 | 892.23 | 869.03 | 832.38 |
Coal is produced from 18 opencast mines. [9] Over 80% of New Zealand's coal reserves are contained in Southland lignite deposits. Most coal production is of bituminous and sub-bituminous coals, and most of this is exported. [10]
The contribution of coal to New Zealand's energy mix has diminished since 2005, despite a noticeable rebound starting in 2017. By 2021, coal represented 8% of the Total Energy Supply (TES) and accounted for 7.2% of electricity generation. In 2022, the New Zealand Government proposed a policy aimed at reducing coal usage in response to environmental and sustainability concerns. This proposal includes a ban on the installation of new low to medium-temperature coal boilers and plans to phase out existing ones by 2037. [6] [7]
Oil and gas is produced from 21 petroleum licenses / permits, all in the Taranaki basin. [11] The most important fields are Kapuni, Maui, Pohokura and Kupe. Exploration for oil and gas reserves includes the Great South Basin and offshore areas near Canterbury and Gisborne. Reticulated natural gas is available in most major North Island towns and cities.
Since 2005, New Zealand has maintained a stable oil share in its Total Energy Supply (TES) and Total Final Consumption (TFC) at 31% and 46%, respectively, up to 2021. Oil dominates transport demand (99.8%) and plays a significant role in the industry sector (22%) and buildings (11.4%). Since 2017, the oil sector has experienced significant changes, including the closure of the country's only refinery and the cessation of new offshore production licenses in 2018, aligning with emissions reduction goals. [6] [7]
Between 2000 and 2021 in New Zealand, the proportion of natural gas in total energy production decreased from 36% to 24%. During this period, its contribution to the Total Energy Supply (TES) significantly reduced, moving from 30% to 17%. Additionally, in Total Final Consumption (TFC), the share of natural gas diminished from 24% to 17%. In the electricity generation sector, the share of natural gas experienced a marked decline, falling from 24% to 11%. [6] [7]
New Zealand ranks tenth among International Energy Agency (IEA) countries for renewable energy's share in total final energy consumption (TFEC), with renewables comprising 29% of its TFEC in 2021—significantly above the IEA's 2020 average of 13%. The country's dominant renewable source, hydropower, contributes to 55% of electricity generation, placing it fifth among IEA members. Additionally, New Zealand leads in geothermal energy use, with the highest share of 25% in total energy supply and 19% in electricity generation among IEA countries. [6] [7]
Studies have shown that it is technically feasible to provide 100% of the electricity demand by renewable power without risking with shortages in energy supply. [12] [13]
In 2021, New Zealand's Total Final Consumption (TFC) of energy amounted to 559.8 Petajoules (PJ), marking a 7% rise since 2011. The allocation of this consumption across various sectors of the economy was as follows: the industry sector was responsible for 42%, transport for 36%, and buildings for 22%. [6] [7]
Fuel | Primary | Industrial | Commercial | Transport | Residential |
---|---|---|---|---|---|
Coal | 1.51 | 18.59 | 0.53 | – | 0.15 |
Bituminous & sub-bituminous | 1.51 | 13.74 | 0.46 | – | 0.12 |
Lignite | 0.00 | 4.85 | 0.07 | – | 0.03 |
Oil | 16.79 | 23.69 | 12.73 | 202.20 | 20.65 |
Diesel | 15.32 | 19.27 | 8.27 | 102.10 | 2.68 |
Petrol | 1.35 | 0.09 | 2.22 | 84.23 | 14.18 |
Aviation fuel & kerosene | – | – | – | 15.03 | – |
LPG | 0.12 | 3.74 | 1.78 | 0.14 | 3.79 |
Fuel oil | – | 0.59 | 0.47 | 0.71 | – |
Natural Gas | 1.01 | 47.92 | 7.45 | – | 6.79 |
Renewables | 0.45 | 30.12 | 2.64 | – | 8.01 |
Wood & solid biofuels | – | 25.80 | – | – | 7.44 |
Geothermal | 0.45 | 4.27 | 2.38 | – | 0.21 |
Biogas | – | 0.05 | 0.26 | – | – |
Solar | – | – | – | – | 0.36 |
Electricity | 8.72 | 50.59 | 33.66 | 0.70 | 48.28 |
Total | 28.47 | 170.90 | 57.01 | 202.90 | 83.88 |
International consumption of energy (calendar year 2014) [5] | Oil products (tonnes per person) | Gas (m³ per person) | Electricity (kWh per person) |
---|---|---|---|
Mexico | 0.60 | 634 | 2,496 |
Turkey | 0.30 | 623 | 3,259 |
Portugal | 0.60 | 393 | 4,974 |
UK | 0.70 | 1,147 | 5,578 |
Germany | 0.92 | 969 | 7,170 |
France | 0.91 | 597 | 7,483 |
Japan | 0.93 | 1,055 | 8,065 |
New Zealand | 1.25 | 1,207 | 9,802 |
Australia | 1.83 | 1,727 | 11,028 |
USA | 1.93 | 2,384 | 13,734 |
Canada | 1.86 | 3,065 | 17,026 |
Norway | 1.58 | 1,200 | 24,621 |
In terms of energy intensity, New Zealand is just a little lower than the global average.
Electrical energy in New Zealand is mainly derived from renewable energy sources such as from hydropower, geothermal power and wind energy. The large share of renewable energy sources makes New Zealand one of the most sustainable countries in terms of energy generation. Electricity demand increased by an average of 2.1% per year from 1974 to 2008 and since then has been relatively constant overall. [5]
The Ministry of Business, Innovation and Employment is responsible for economic issues surrounding energy use and the Ministry for the Environment addresses the environmental impact of energy use in New Zealand. Exploration and production of fossil fuels comes under Crown Minerals, a division of the Ministry of Economic Development. The Energy Efficiency and Conservation Authority is responsible for preparing a statutory national energy efficiency and conservation strategy for approval by the administering Minister. [14]
Electric energy consumption is energy consumption in the form of electrical energy. About a fifth of global energy is consumed as electricity: for residential, industrial, commercial, transportation and other purposes. Quickly increasing this share by further electrification is extremely important to limit climate change, because most other energy is consumed by burning fossil fuels thus emitting greenhouse gases which trap heat.
The energy policy of India is to increase the locally produced energy in India and reduce energy poverty, with more focus on developing alternative sources of energy, particularly nuclear, solar and wind energy. Net energy import dependency was 40.9% in 2021-22.
Denmark has considerable sources of oil and natural gas in the North Sea and ranked as number 32 in the world among net exporters of crude oil in 2008. Denmark expects to be self-sufficient with oil until 2050. However, gas resources are expected to decline, and production may decline below consumption in 2020, making imports necessary. Denmark imports around 12% of its energy.
The energy policy of Australia is subject to the regulatory and fiscal influence of all three levels of government in Australia, although only the State and Federal levels determine policy for primary industries such as coal. Federal policies for energy in Australia continue to support the coal mining and natural gas industries through subsidies for fossil fuel use and production. Australia is the 10th most coal-dependent country in the world. Coal and natural gas, along with oil-based products, are currently the primary sources of Australian energy usage and the coal industry produces over 30% of Australia's total greenhouse gas emissions. In 2018 Australia was the 8th highest emitter of greenhouse gases per capita in the world.
Norway is a large energy producer, and one of the world's largest exporters of oil. Most of the electricity in the country is produced by hydroelectricity. Norway is one of the leading countries in the electrification of its transport sector, with the largest fleet of electric vehicles per capita in the world.
China is both the world's largest energy consumer and the largest industrial country, and ensuring adequate energy supply to sustain economic growth has been a core concern of the Chinese Government since the founding of the People's Republic of China in 1949. Since the country's industrialization in the 1960s, China is currently the world's largest emitter of greenhouse gases, and coal in China is a major cause of global warming. However, from 2010 to 2015 China reduced energy consumption per unit of GDP by 18%, and CO2 emissions per unit of GDP by 20%. On a per-capita basis, China was only the world's 51st largest emitter of greenhouse gases in 2016. China is also the world's largest renewable energy producer, and the largest producer of hydroelectricity, solar power and wind power in the world. The energy policy of China is connected to its industrial policy, where the goals of China's industrial production dictate its energy demand managements.
Renewable energy in Finland increased from 34% of the total final energy consumption (TFEC) in 2011 to 48% by the end of 2021, primarily driven by bioenergy (38%), hydroelectric power (6.1%), and wind energy (3.3%). In 2021, renewables covered 53% of heating and cooling, 39% of electricity generation, and 20% of the transport sector. By 2020, this growth positioned Finland as having the third highest share of renewables in TFEC among International Energy Agency (IEA) member countries.
Since 2013, total primary energy consumption in India has been the third highest in the world after China and United States. India is the second-top coal consumer in the year 2017 after China. India ranks third in oil consumption with 22.1 crore tons in 2017 after United States and China. India is net energy importer to meet nearly 47% of its total primary energy in 2019.
Vietnam is a dynamic developing economy with a relatively high growth rate. The energy sector plays a key role in promoting the country's socio-economic development. Vietnam has a diverse energy fuel resource of various types such as coal, natural gas, petroleum, hydropower and renewables such as solar and wind energy. The country has recently been successful in renewable energy deployment, especially solar and wind power development. Coal has been the key power generation source since 2018. Coal accounted for about 30% of installed capacity and 47% of electricity generation in 2021 The high use of coal makes Vietnam an increasingly important emitter of carbon dioxide, contributing to climate change.
Energy in Finland describes energy and electricity production, consumption and import in Finland. Energy policy of Finland describes the politics of Finland related to energy. Electricity sector in Finland is the main article regarding electricity in Finland.
Energy in Switzerland is transitioning towards sustainability, targeting net zero emissions by 2050 and a 50% reduction in greenhouse gas emissions by 2030.
Energy in Australia is the production in Australia of energy and electricity, for consumption or export. Energy policy of Australia describes the politics of Australia as it relates to energy.
In 2019, the total energy production in Indonesia is 450.79 Mtoe, with a total primary energy supply is 231.14 Mtoe and electricity final consumption is 263.32 TWh. Energy use in Indonesia has been long dominated by fossil resources. Once a major oil exporter in the world and joined OPEC in 1962, the country has since become a net oil importer despite still joined OPEC until 2016, making it the only net oil importer member in the organization. Indonesia is also the fourth-largest biggest coal producer and one of the biggest coal exporter in the world, with 24,910 million tons of proven coal reserves as of 2016, making it the 11th country with the most coal reserves in the world. In addition, Indonesia has abundant renewable energy potential, reaching almost 417,8 gigawatt (GW) which consisted of solar, wind, hydro, geothermal energy, ocean current, and bioenergy, although only 2,5% have been utilized. Furthermore, Indonesia along with Malaysia, have two-thirds of ASEAN's gas reserves with total annual gas production of more than 200 billion cubic meters in 2016.
Energy in Sweden describes energy and electricity production, consumption and import in Sweden. Electricity sector in Sweden is the main article of electricity in Sweden. The Swedish climate bill of February 2017 aims to make Sweden carbon neutral by 2045. The Swedish target is to decline emission of climate gases 63% from 1990 to 2030 and international transportation excluding foreign flights 70%. By 2014 just over half of the country's total final energy consumption in electricity, heating and cooling and transport combined was provided by renewables, the highest share amongst the then 28 EU member countries. About a third of Sweden's electricity is generated by nuclear power. In generating a year's worth of this energy, Swedes generate about 4 tonnes of CO2 emissions each. Since 2010, sustainability measures have reduced total emissions even as the population has increased.
Primary energy consumption in Spain in 2020 was mainly composed of renewable sources. The largest sources are petroleum (42.3%), natural gas (19.8%) and coal (11.6%). The remaining 26.3% is accounted for by nuclear energy (12%) and different renewable energy sources (14.3%). Domestic production of primary energy includes nuclear (44,8%), solar, wind and geothermal (22,4%), biomass and waste (21,1%), hydropower (7,2%) and fossil (4,5%).
Energy consumption per person in Turkey is similar to the world average, and over 85 per cent is from fossil fuels. From 1990 to 2017 annual primary energy supply tripled, but then remained constant to 2019. In 2019, Turkey's primary energy supply included around 30 per cent oil, 30 per cent coal, and 25 per cent gas. These fossil fuels contribute to Turkey's air pollution and its above average greenhouse gas emissions. Turkey mines its own lignite but imports three-quarters of its energy, including half the coal and almost all the oil and gas it requires, and its energy policy prioritises reducing imports.
Total primary energy supply (TPES) in Slovenia was 6.80 Mtoe in 2019. In the same year, electricity production was 16.1 TWh, consumption was 14.9 TWh.
Myanmar had a total primary energy supply (TPES) of 16.57 Mtoe in 2013. Electricity consumption was 8.71 TWh. 65% of the primary energy supply consists of biomass energy, used almost exclusively (97%) in the residential sector. Myanmar’s energy consumption per capita is one of the lowest in Southeast Asia due to the low electrification rate and a widespread poverty. An estimated 65% of the population is not connected to the national grid. Energy consumption is growing rapidly, however, with an average annual growth rate of 3.3% from 2000 to 2007.
Denmark is a leading country in renewable energy production and usage. Renewable energy sources collectively produced 81% of Denmark's electricity generation in 2022, and are expected to provide 100% of national electric power production from 2030. Including energy use in the heating/cooling and transport sectors, Denmark is expected to reach 100% renewable energy in 2050, up from the 34% recorded in 2021.
World energy supply and consumption refers to the global primary energy production, energy conversion and trade, and final consumption of energy. Energy can be used in various different forms, as processed fuels or electricity, or for various different purposes, like for transportation or electricity generation. Energy production and consumption are an important part of the economy. A serious problem concerning energy production and consumption is greenhouse gas emissions. Of about 50 billion tonnes worldwide annual total greenhouse gas emissions, 36 billion tonnes of carbon dioxide was emitted due to energy in 2021.