Wikisage, the free encyclopedia of the second generation, is digital heritage

World energy supply: Difference between revisions

From Wikisage
Jump to navigation Jump to search
 
(68 intermediate revisions by 3 users not shown)
Line 1: Line 1:
'''World energy supply''' consists of worldwide production and preparation of fuel (combustible and nuclear), generation of electricity, and energy transport.
'''World energy supply''' refers to the global production and preparation of fuel (fossil and nuclear), generation of electricity, and energy transport. Here contemporary energy supply is outlined, statistical data rather than policy. Energy supply is a vast industry, powering the world economy. More than 10% of the world expenditures is used for energy purposes.<ref>[http://www.leonardo-energy.org/blog/world-energy-expenditures Energy expenditures]</ref>


Mankind has always used fuel to make fire. Coal and oil extraction are very old. People have built thousands of years wind- and water mills and sailing-boats. Roughly 200 year ago large scale mining of lignite and coal provided much more fuel, enabling industrial revolution.
Short lists of countries are given where most energy is produced<ref>Energy is used in the economic sense, not in the physical sense where it is conserved</ref> and where it is consumed, distinguishing fossil, nuclear and renewable energy. Of all produced energy 80% is fossil. Half of that is produced by China, the [[United States]] and the Persian Gulf States. The Gulf States and Norway export most of their production, largely to the European Union and Japan where not sufficient energy is produced to satisfy their users. Energy production increases slowly, except for solar and wind energy which grows more than 20% per year.


Here contemporary energy supply is outlined. It is a vast industry, taking about 10% of all worldwide expenditures<ref>http://www.leonardo-energy.org/blog/world-energy-expenditures</ref> and it is crucial for the economy and for quality of life:
Produced energy, for instance crude oil, must be processed to make it suitable for consumption by end users.  So the supply chain between production and final consumption involves many conversion activities and much trade and transport among countries, causing a loss of one third of energy before it is consumed.


* for the economy, the cost of electricity and fuel is important for the competitiveness of producers and for comfort and welfare of consumers.
Institutions such as the International Energy Agency (IEA) and the U.S. Energy Information Administration (EIA) collect, analyze and publish comprehensive energy data periodically. In the country lists below these data are used.
* for quality of life, the impact of energy production on the environment is important (air and water quality, waste management, climate disruption).


These interests are often in conflict. The industry eg. benefits from cheap electricity from coal plants but these are not climate friendly. ''Energy policy'' weighs these interests, and the importance of good relations with countries with which fuel is traded.
Worldwide carbon dioxide emission from fuel combustion was 32 gigaton in 2013.<ref>http://www.iea.org/statistics/statisticssearch/report/?year=2013&country=WORLD&product=Indicators</ref> In view of contemporary energy policy of countries the IEA expects<ref name="outlook">{{cite web|title=World Energy Outlook 2016|url=http://www.iea.org/Textbase/npsum/WEO2016SUM.pdf|website=International Energy Agency|publisher=IEA}}</ref> that the worldwide energy consumption in 2040 will have increased 30% and that the goal, set in the Paris Agreement about Climate Change, will not nearly be reached. The IEA concludes that a major reallocation of investment capital in the energy sector is required.
 
Lists of countries are given where most energy is produced and consumed, distinguishing fossil, nuclear and renewable energy, and referring to many conversions and transport between production and consumption. The lists are kept short to make updates feasible. Lastly the outlook on energy use until 2040 and possible changes in energy policy are summarised.


== Energy production ==
== Energy production ==
Line 36: Line 33:
</div>
</div>
|}
|}
This is the world-wide production of primary energy from fossil, nuclear and renewable sources. Primary means: extracted or captured directly from natural sources. Note the strong production increase of China.
This is the world-wide production of '''primary energy (PE)''' from fossil, nuclear and renewable sources. Primary means: extracted or captured directly from natural sources. Note the strong production increase of China.


Energy sources are usually classified as
Energy sources are usually classified as
Line 43: Line 40:
* renewable, using hydro power, biomass, wind and solar energy, among others.
* renewable, using hydro power, biomass, wind and solar energy, among others.


Primary energy assessment follows certain rules<ref>[https://www.iea.org/publications/freepublications/publication/statistics_manual.pdf IEA Statistics manual, chapter 7]
Primary energy assessment follows certain rules<ref>[https://www.iea.org/publications/freepublications/publication/statistics_manual.pdf IEA Statistics manual], chapter 7
* Fossil: based on lower heating value.
* Fossil: based on lower heating value.
* Nuclear: heat produced by nuclear reactions, 3 times the electric energy, based on 33% efficiency of nuclear plants.
* Nuclear: heat produced by nuclear reactions, 3 times the electric energy, based on 33% efficiency of nuclear plants.
* Renewable: biomass based on lower heating value. Electric energy produced by hydropower, wind turbines and solar panels. Water and air flow energy that drives hydro and wind turbines, and sunlight that powers solar panels, are not taken as primary in energy statistics. Geothermal energy used in power plants is set at 10 times the electric energy, assuming 10% efficiency.</ref> to ease measurement and comparison of different kinds of energy.
* Renewable:
** Biomass based on lower heating value.
** Electric energy produced by hydropower, wind turbines and solar panels.
** Geothermal energy used in power plants is set at 10 times the electric energy, assuming 10% efficiency.</ref> to ease measurement and comparison of different kinds of energy. Due to these rules uranium is not counted as PE but as the natural source of nuclear PE. Similarly water and air flow energy that drives hydro and wind turbines, and sunlight that powers solar panels, are not taken as PE but as PE sources ('''PES''').


The table lists the world-wide production and the countries/regions producing most (86%) of that.
The table lists the world-wide production and the countries/regions producing most (90%) of that.
The Persian Gulf States are Saudi Arabia, Iran, Qatar, Arab Emirates, Kuwait, Iraq and Oman, in order of production.
The Persian Gulf States are Saudi Arabia, Iran, Qatar, Arab Emirates, Kuwait, Iraq and Oman, in order of production.
The amounts are given in million tonnes of oil equivalent per year (Mtoe/a, 1 Mtoe = 11.63 TWh). The data are of 2013.<ref name=balances>[http://www.iea.org/statistics/statisticssearch/ IEA Statistics search, Balances]</ref><ref>The International Energy Agency uses the energy unit Mtoe. Practically the same data are presented by the US Energy Information Administration http://www.eia.doe.gov/ expressed in quads. 1 quad = 10<sup>15</sup> [[BTU]] = 25.2 Mtoe.</ref>
The amounts are given in million tonnes of oil equivalent per year (Mtoe/a, 1 Mtoe = 11.63 TWh). The data are of 2013.<ref name=balances>[http://www.iea.org/statistics/statisticssearch/ IEA Statistics search] select Country/Region, Balances, Year.</ref><ref>The International Energy Agency uses the energy unit Mtoe. Corresponding data are presented by the US Energy Information Administration http://www.eia.doe.gov/ expressed in quads. 1 quad = 10<sup>15</sup> BTU = 25.2 Mtoe. The US EIA follows different rules to assess renewable electricity generation.
 
See [http://www.eia.gov/tools/glossary/index.cfm EIA Glossary], Primary energy production.</ref>
 


{| class="wikitable sortable"
{| class="wikitable sortable"
! width="30%" | || width="15%" |Total<br /><small>Mtoe/a</small> || width="15%" | Fossil || width="15%" | Nuclear || width="15%" | Renewable
! width="30%" | || width="15%" |Total<br /><small>Mtoe/a</small> || width="15%" | Coal || width="15%" | Oil & Gas || width="15%" | Nuclear || width="15%" | Renewable
|-
|-
| '''WORLD''' ||align="right"| 13600 ||align="right"| 81% ||align="right"| 5% ||align="right"| 14%
| '''WORLD''' ||align="right"| 13600 ||align="right"| 29% ||align="right"| 52% ||align="right"| 5% ||align="right"| 14%
|-
|-
| China ||align="right"| 2570 ||align="right"| 86% ||align="right"| 1% ||align="right"| 13%
| China ||align="right"| 2560 ||align="right"| 74% ||align="right"| 12% ||align="right"| 1% ||align="right"| 13%
|-
|-
| United States ||align="right"| 1880 ||align="right"| 80% ||align="right"| 11% ||align="right"| 8%
| United States ||align="right"| 1880 ||align="right"| 25% ||align="right"| 55% ||align="right"| 11% ||align="right"| 8%
|-
|-
| Persian Gulf States ||align="right"| 1742 ||align="right"| 0% ||align="right"| 0% ||align="right"| 0%
| Persian Gulf States ||align="right"| 1742 ||align="right"| 0% ||align="right"| 100% ||align="right"| 0% ||align="right"| 0%
|-
|-
| Russia ||align="right"| 1316 ||align="right"| 95% ||align="right"| 3% ||align="right"| 2%
| Russia ||align="right"| 1316 ||align="right"| 14% ||align="right"| 81% ||align="right"| 3% ||align="right"| 2%
|-
|-
| Africa ||align="right"| 1129 ||align="right"| 65% ||align="right"| 0% ||align="right"| 33%
| Africa ||align="right"| 1129 ||align="right"| 13% ||align="right"| 53% ||align="right"| 0% ||align="right"| 33%
|-
|-
| European Union ||align="right"| 793 ||align="right"| 47% ||align="right"| 29% ||align="right"| 26%
| European Union ||align="right"| 793 ||align="right"| 20% ||align="right"| 26% ||align="right"| 29% ||align="right"| 26%
|-
|-
| India ||align="right"| 523 ||align="right"| 59% ||align="right"| 2% ||align="right"| 39%
| India ||align="right"| 523 ||align="right"| 46% ||align="right"| 13% ||align="right"| 2% ||align="right"| 39%
|-
|-
| Indonesia ||align="right"| 460 ||align="right"| 84% ||align="right"| 0% ||align="right"| 16%
| Indonesia ||align="right"| 460 ||align="right"| 61% ||align="right"| 23% ||align="right"| 0% ||align="right"| 16%
|-
|-
| Canada ||align="right"| 435 ||align="right"| 83% ||align="right"| 6% ||align="right"| 11%
| Canada ||align="right"| 435 ||align="right"| 8% ||align="right"| 75% ||align="right"| 6% ||align="right"| 11%
|-
|-
| Brazil ||align="right"| 253 ||align="right"| 51% ||align="right"| 2% ||align="right"| 47%
| Australia ||align="right"| 344 ||align="right"| 77% ||align="right"| 21% ||align="right"| 0% ||align="right"| 2%
|-
|-
| Mexico ||align="right"| 217 ||align="right"| 92% ||align="right"| 1% ||align="right"| 7%
| Brazil ||align="right"| 253 ||align="right"| 1% ||align="right"| 50% ||align="right"| 2% ||align="right"| 47%
|-
|-
| Venezuela ||align="right"| 192 ||align="right"| 96% ||align="right"| 0% ||align="right"| 4%
| Mexico ||align="right"| 217 ||align="right"| 3% ||align="right"| 89% ||align="right"| 1% ||align="right"| 7%
|-
|-
| Norway ||align="right"| 192 ||align="right"| 93% ||align="right"| 0% ||align="right"| 7%
| Venezuela ||align="right"| 192 ||align="right"| 0% ||align="right"| 96% ||align="right"| 0% ||align="right"| 4%
|-
| Norway ||align="right"| 192 ||align="right"| 1% ||align="right"| 92% ||align="right"| 0% ||align="right"| 7%
|-
| Kazakhstan ||align="right"| 169 ||align="right"| 31% ||align="right"| 69% ||align="right"| 0% ||align="right"| 0%
|}
|}


Fossil energy production in the world is 36% coal, 38% petroleum and 26% natural gas.
Two third of the world renewable supply is non-commercial solid biofuel in developing countries.<ref name="trend">[http://www.iea.org/publications/freepublications/publication/KeyRenewablesTrends.pdf IEA Key Renewables Trends]</ref>
 
The top producers of the USA are Texas 20%, Wyoming 11%, Pennsylvania 8%, W Virginia 5% and Oklahoma 4%. <ref>[http://www.eia.gov/state/?sid=US EIA US Overview]</ref>


The top producers in Africa are Nigeria (256), S-Africa (166) and Algeria (138).
The top producers in Africa are Nigeria (256), S-Africa (166) and Algeria (138).


In the EU France (136, mainly nuclear), Germany (120), UK (110), Poland (71, mainly coal) and Netherlands (69, mainly natural gas) produce most.
In the EU France (136, mainly nuclear), Germany (120), UK (110), Poland (71, mainly coal) and Netherlands (69, mainly natural gas) produce most.
=== Trend ===
From 2012 to 2014 worldwide production increased 3%, nuclear and fossil rose at about the same rate, renewables increased 6%.<ref>Compare World: [http://www.iea.org/statistics/statisticssearch/ Balances] for 2012 and 2014.</ref>
A small part of the renewables, solar and wind energy, increased much more, 46% in this period<ref name="electrheat">[http://www.iea.org/statistics/statisticssearch/ IEA Statistics search], select Country/Region, Electricity and Heat.</ref> in line with the strong growth since 1990.<ref name="trend" />
In Brazil windpower inceased 140%, in China not only solar and wind increased fast, 81%, but also nuclear production, 36% from 2012 to 2014.<ref name="electrheat" />


== Between production and final consumption ==
== Between production and final consumption ==
Line 96: Line 108:
Primary energy is converted in many ways to energy carriers, also known as secondary energy.
Primary energy is converted in many ways to energy carriers, also known as secondary energy.
* Lignite and coal mainly go to thermal power stations. Coke is derived by destructive distillation of bituminous coal.
* Lignite and coal mainly go to thermal power stations. Coke is derived by destructive distillation of bituminous coal.
* Petroleum goes mainly to oil refineries and is also used to generate electricity and to make coke.
* Crude oil goes mainly to oil refineries and is also used to generate electricity and to make coke.
* Natural-gas goes to processing plants to remove contaminants such as water, carbon dioxide and hydrogen sulfide, and mixed to adjust the heating value.
* Natural-gas goes to processing plants to remove contaminants such as water, carbon dioxide and hydrogen sulfide, and mixed to adjust the heating value.
* Nuclear reaction heat is used to generate electricity.
* Nuclear reaction heat is used to generate electricity.
Line 122: Line 134:
| India ||align="right"| 72 ||align="right"| 327
| India ||align="right"| 72 ||align="right"| 327
|-
|-
| S-Korea ||align="right"| 57 ||align="right"| 291
| [[South Korea|S-Korea]] ||align="right"| 57 ||align="right"| 291
|}
|}


Line 146: Line 158:
* Fossil fuel: natural gas, fuel derived from petroleum (LPG, gasoline, kerosene, gas/diesel, fuel oil), from coal (anthracite, bituminous coal, coke, lignite, blast furnace gas)
* Fossil fuel: natural gas, fuel derived from petroleum (LPG, gasoline, kerosene, gas/diesel, fuel oil), from coal (anthracite, bituminous coal, coke, lignite, blast furnace gas)
* Renewable fuel: biofuel and fuel derived from waste, so far as it is traded.
* Renewable fuel: biofuel and fuel derived from waste, so far as it is traded.
* District heating.<ref>In energy statistics this is not part of fuel but a separate part of final consumption, next to electricity, see [http://www.iea.org/statistics/statisticssearch/ IEA Statistics search, Electricity and Heat].</ref>
* District heating.<ref>In energy statistics this is not part of fuel but a separate part of final consumption like electricity, see [http://www.iea.org/statistics/statisticssearch/ IEA Statistics search], select Country/Region, Electricity and Heat.</ref>
The amounts are based on lower heating value.
The amounts are based on lower heating value.


'''Electricity''':
'''Electricity''':


See [[World electricity consumption]] for details, but note that the table there includes also internal consumption of power plants, about 10% of the totals.
* See [[World electricity consumption]] for details, but note that the table there includes also internal consumption of power plants, about 10% of the totals.


The first table lists world-wide final consumption and the countries/regions which use 3/4 of that. In developing countries fuel consumption is more renewable. Canada and Brazil generate most electricity with hydropower.
The first table lists world-wide final consumption and the countries/regions which use most (83%). In developing countries fuel consumption per person is low and more renewable. Canada, Venezuela and Brazil generate most electricity with hydropower.


{| class="wikitable sortable"
{| class="wikitable sortable"
! width="30%" | || width=15% | Fuel<br /><small>Mtoe/a</small> || of which renewable || |Electricity<br /><small>Mtoe/a</small> || of which renewable || Inhabitants<br /><small>million</small>
! width="30%" | || width=15% | Fuel<br /><small>Mtoe/a</small> || of which renewable || |Electricity<br /><small>Mtoe/a</small> || of which renewable || Energy pp<br /><small>toe/a</small>
|-
|-
| '''WORLD''' ||align="right"| 6800 ||align="right"| 17% ||align="right"| 1680 ||align="right"| 21% ||align="right"| 7120
| '''WORLD''' ||align="right"| 6800 ||align="right"| 17% ||align="right"| 1680 ||align="right"| 21% ||align="right"| 1.2
|-
|-
| China ||align="right"| 1390 ||align="right"| 16% ||align="right"| 387 ||align="right"| 20% ||align="right"| 1360
| China ||align="right"| 1390 ||align="right"| 16% ||align="right"| 387 ||align="right"| 20% ||align="right"| 1.3
|-
|-
| United States ||align="right"| 1050 ||align="right"| 7% ||align="right"| 325 ||align="right"| 13% ||align="right"| 316
| United States ||align="right"| 1050 ||align="right"| 7% ||align="right"| 325 ||align="right"| 13% ||align="right"| 4.4
|-
|-
| European Union ||align="right"| 801 ||align="right"| 10% ||align="right"| 238 ||align="right"| 13% ||align="right"| 508
| European Union ||align="right"| 801 ||align="right"| 10% ||align="right"| 238 ||align="right"| 13% ||align="right"| 2.1
|-
|-
| Africa ||align="right"| 485 ||align="right"| 62% ||align="right"| 51 ||align="right"| 13% ||align="right"| 1110
| Africa ||align="right"| 485 ||align="right"| 62% ||align="right"| 51 ||align="right"| 13% ||align="right"| 0.5
|-
|-
| India ||align="right"| 415 ||align="right"| 41% ||align="right"| 77 ||align="right"| 16% ||align="right"| 1250
| India ||align="right"| 415 ||align="right"| 41% ||align="right"| 77 ||align="right"| 16% ||align="right"| 0.4
|-
|-
| Russia ||align="right"| 300 ||align="right"| 1% ||align="right"| 64 ||align="right"| 21% ||align="right"| 143
| Russia ||align="right"| 300 ||align="right"| 1% ||align="right"| 64 ||align="right"| 21% ||align="right"| 2.6
|-
|-
| Japan ||align="right"| 191 ||align="right"| 2% ||align="right"| 82 ||align="right"| 12% ||align="right"| 127
| Japan ||align="right"| 191 ||align="right"| 2% ||align="right"| 82 ||align="right"| 12% ||align="right"| 2.2
|-
|-
| Brazil ||align="right"| 170 ||align="right"| 34% ||align="right"| 42 ||align="right"| 82% ||align="right"| 200
| Brazil ||align="right"| 170 ||align="right"| 34% ||align="right"| 42 ||align="right"| 82% ||align="right"| 1.1
|-
|-
| Indonesia ||align="right"| 135 ||align="right"| 40% ||align="right"| 16 ||align="right"| 11% ||align="right"| 250
| Indonesia ||align="right"| 135 ||align="right"| 40% ||align="right"| 16 ||align="right"| 11% ||align="right"| 0.6
|-
|-
| Canada ||align="right"| 133 ||align="right"| 9% ||align="right"| 42 ||align="right"| 59% ||align="right"| 35
| Canada ||align="right"| 133 ||align="right"| 9% ||align="right"| 42 ||align="right"| 59% ||align="right"| 5.0
|-
|-
| Iran ||align="right"| 130 ||align="right"| 0% ||align="right"| 18 ||align="right"| 5% ||align="right"| 77
| Iran ||align="right"| 130 ||align="right"| 0% ||align="right"| 18 ||align="right"| 5% ||align="right"| 1.9
|-
|-
| Mexico ||align="right"| 91 ||align="right"| 9% ||align="right"| 21 ||align="right"| 23% ||align="right"| 118
| Mexico ||align="right"| 91 ||align="right"| 9% ||align="right"| 21 ||align="right"| 23% ||align="right"| 1.0
|-
|-
| s-Korea ||align="right"| 82 ||align="right"| 4% ||align="right"| 42 ||align="right"| 2% ||align="right"| 50
| S-Korea ||align="right"| 82 ||align="right"| 4% ||align="right"| 42 ||align="right"| 2% ||align="right"| 2.5
|-
| Australia ||align="right"| 58 ||align="right"| 8% ||align="right"| 18 ||align="right"| 9% ||align="right"| 3.0
|-
| Ukraine ||align="right"| 53 ||align="right"| 2% ||align="right"| 12 ||align="right"| 8% ||align="right"| 1.4
|-
| Argentina ||align="right"| 45 ||align="right"| 1% ||align="right"| 10 ||align="right"| 41% ||align="right"| 1.3
|-
| Venezuela ||align="right"| 36 ||align="right"| 2% ||align="right"| 8 ||align="right"| 65% ||align="right"| 1.5
|}
|}


The next table shows countries consuming most (80%) in the European Union, and Norway. The last three countries generate electricity largely renewable.
The next table shows countries consuming most (83%) in the European Union, and Norway. The last four countries generate electricity largely renewable.


{| class="wikitable"
{| class="wikitable"
! width="30%" | || width=15% | Fuel<br /><small>Mtoe/a</small> || of which renewable || |Electricity<br /><small>Mtoe/a</small> || of which renewable || Inhabitants<br /><small>million</small>
! width="30%" | || width=15% | Fuel<br /><small>Mtoe/a</small> || of which renewable || |Electricity<br /><small>Mtoe/a</small> || of which renewable || Energy pp<br /><small>toe/a</small>
|-
| Germany ||align="right"| 158 ||align="right"| 9% ||align="right"| 45 ||align="right"| 25% ||align="right"| 2.5
|-
|-
| Germany ||align="right"| 158 ||align="right"| 9% ||align="right"| 45 ||align="right"| 25% ||align="right"| 82
| France ||align="right"| 106 ||align="right"| 12% ||align="right"| 38 ||align="right"| 16% ||align="right"| 2.2
|-
|-
| France ||align="right"| 106 ||align="right"| 12% ||align="right"| 38 ||align="right"| 16% ||align="right"| 66
| United Kingdom ||align="right"| 96 ||align="right"| 2% ||align="right"| 27 ||align="right"| 13% ||align="right"| 1.9
|-
|-
| United Kingdom ||align="right"| 96 ||align="right"| 2% ||align="right"| 27 ||align="right"| 13% ||align="right"| 64
| Italy ||align="right"| 90 ||align="right"| 10% ||align="right"| 25 ||align="right"| 32% ||align="right"| 1.9
|-
|-
| Italy ||align="right"| 90 ||align="right"| 10% ||align="right"| 25 ||align="right"| 32% ||align="right"| 61
| Spain ||align="right"| 56 ||align="right"| 9% ||align="right"| 20 ||align="right"| 31% ||align="right"| 1.6
|-
|-
| Spain ||align="right"| 56 ||align="right"| 9% ||align="right"| 20 ||align="right"| 31% ||align="right"| 47
| Poland ||align="right"| 51 ||align="right"| 12% ||align="right"| 11 ||align="right"| 11% ||align="right"| 1.6
|-
|-
| Poland ||align="right"| 51 ||align="right"| 12% ||align="right"| 11 ||align="right"| 11% ||align="right"| 39
| Netherlands ||align="right"| 38 ||align="right"| 3% ||align="right"| 9 ||align="right"| 14% ||align="right"| 2.8
|-
|-
| Netherland ||align="right"| 38 ||align="right"| 3% ||align="right"| 9 ||align="right"| 14% ||align="right"| 17
| Belgium ||align="right"| 26 ||align="right"| 8% ||align="right"| 7 ||align="right"| 14% ||align="right"| 3.0
|-
|-
| Belgium ||align="right"| 26 ||align="right"| 8% ||align="right"| 7 ||align="right"| 14% ||align="right"| 11
| Sweden ||align="right"| 19 ||align="right"| 32% ||align="right"| 11 ||align="right"| 55% ||align="right"| 3.1
|-
|-
| Portugal ||align="right"| 11 ||align="right"| 20% ||align="right"| 4 ||align="right"| 60% ||align="right"| 10
| Portugal ||align="right"| 11 ||align="right"| 20% ||align="right"| 4 ||align="right"| 60% ||align="right"| 1.5
|-
|-
| Denmark ||align="right"| 11 ||align="right"| 13% ||align="right"| 3 ||align="right"| 48% ||align="right"| 6
| Denmark ||align="right"| 11 ||align="right"| 13% ||align="right"| 3 ||align="right"| 48% ||align="right"| 2.3
|-
|-
| Norway ||align="right"| 9 ||align="right"| 11% ||align="right"| 9 ||align="right"| 98% ||align="right"| 5
| Norway ||align="right"| 9 ||align="right"| 11% ||align="right"| 9 ||align="right"| 98% ||align="right"| 3.6
|}
|}
=== Energy for energy ===
Some fuel end electricity is used to construct, maintain and demolish/recycle installations that produce fuel and electricity, such as oil rigs, uranium isotope separators and wind turbines.
For these producers to be economic the ratio of '''energy returned on energy invested''' (EROEI) or '''energy return on investment''' (EROI) should be large enough.
There is little consensus in the technical literature about methods and results in calculating these ratios, but it is likely that for fuels (fossil and nuclear), hydro power and wind turbines the ratio is at least 10, for solar panels about 7 and for solar collectors (hot water) only 2.<ref>Charles Hall, http://www.theoildrum.com/node/3810 (2008).</ref>
In southern European countries solar EROEI exceeds ten<ref>Ugo Bardi, http://http://www.resilience.org/stories/2016-05-24/but-what-s-the-real-energy-return-of-photovoltaic-energy/ (2016).</ref> but more to the North it is less as it takes a greater part of the life time to regain the invested energy,


== Outlook until 2040 ==
== Outlook until 2040 ==


In view of contemporary energy policy of countries the IEA expects<ref>[http://www.iea.org/publications/freepublications/publication/world-energy-outlook-2015---executive-summary---english.html IEA Outlook]</ref> that the worldwide energy consumption in 2040 will have increased 30%, mainly by strong growth in India and China, while EU and Japan will use less and the US about the same.
Based on examination of the [[Paris Agreement]] pledges, covering some 190 countries, the IEA expects<ref name="outlook" /> that the worldwide energy consumption in 2040 will have increased 30% by industrialising India, Southeast Asia and China. Renewable energy sees the fastest growth, natural gas consumption rises by 50%, oil demand tops by 2040 and coal use will not grow.
 
Electricity use will increase 60% by
* growing economies in developing countries where now about 1/6 of all people in the world have no electricity, and
* electrification of transport and heating which now uses mainly fossil fuel.
More than half of this 60% increase will be generated using wind and sun. The share of coal for electricity generation will decrease from 40% to 30%.


With this policy the goal, set in the Paris agreement, will not be reached. More measures, including phase-out of subsidy on fossil fuel and increase of investment in renewable energy, can be taken at no net economic cost.
With this policy the goal, set in the Paris Agreement, will not nearly be reached according to the IEA. More stringent decarbonisation options examined in the IEA Outlook include the 450 Scenario (450 ppm CO<sub>2</sub> in the air being associated with 2 C warming). In this scenario nearly 60% of the power generated in 2040 comes from renewables, almost half of this from wind and solar PV. The power sector is largely decarbonised. Structural changes to the design and operation of the power system are needed to integrate high shares of variable wind and solar power. This requires a major reallocation of cumulative investment capital in the energy sector, estimated at $40 trillion. By 2040 the share going to fossil fuels drops towards one-third.


==See also==
==See also==
"Providing all global energy with wind, water, and solar power" in [[Mark Jacobson]].
"Providing all global energy with wind, water, and solar power" in [[Mark Jacobson]].


== Notes and references ==
== Notes ==
 
{{refs}}
<references/>
[[Category:energy policy]]

Latest revision as of 20:16, 27 February 2019

World energy supply refers to the global production and preparation of fuel (fossil and nuclear), generation of electricity, and energy transport. Here contemporary energy supply is outlined, statistical data rather than policy. Energy supply is a vast industry, powering the world economy. More than 10% of the world expenditures is used for energy purposes.[1]

Short lists of countries are given where most energy is produced[2] and where it is consumed, distinguishing fossil, nuclear and renewable energy. Of all produced energy 80% is fossil. Half of that is produced by China, the United States and the Persian Gulf States. The Gulf States and Norway export most of their production, largely to the European Union and Japan where not sufficient energy is produced to satisfy their users. Energy production increases slowly, except for solar and wind energy which grows more than 20% per year.

Produced energy, for instance crude oil, must be processed to make it suitable for consumption by end users. So the supply chain between production and final consumption involves many conversion activities and much trade and transport among countries, causing a loss of one third of energy before it is consumed.

Institutions such as the International Energy Agency (IEA) and the U.S. Energy Information Administration (EIA) collect, analyze and publish comprehensive energy data periodically. In the country lists below these data are used.

Worldwide carbon dioxide emission from fuel combustion was 32 gigaton in 2013.[3] In view of contemporary energy policy of countries the IEA expects[4] that the worldwide energy consumption in 2040 will have increased 30% and that the goal, set in the Paris Agreement about Climate Change, will not nearly be reached. The IEA concludes that a major reallocation of investment capital in the energy sector is required.

Energy production

World primary energy production

World total primary energy production

██ World (1015 Btu)[5]

██  China

██  Russia

██  Africa

██  United States

██  Europe

██  Central and South America

Note the different y-axis for world (left) en regional (right) production

This is the world-wide production of primary energy (PE) from fossil, nuclear and renewable sources. Primary means: extracted or captured directly from natural sources. Note the strong production increase of China.

Energy sources are usually classified as

  • fossil, using coal, lignite, petroleum and natural gas,
  • nuclear, using uranium,
  • renewable, using hydro power, biomass, wind and solar energy, among others.

Primary energy assessment follows certain rules[6] to ease measurement and comparison of different kinds of energy. Due to these rules uranium is not counted as PE but as the natural source of nuclear PE. Similarly water and air flow energy that drives hydro and wind turbines, and sunlight that powers solar panels, are not taken as PE but as PE sources (PES).

The table lists the world-wide production and the countries/regions producing most (90%) of that. The Persian Gulf States are Saudi Arabia, Iran, Qatar, Arab Emirates, Kuwait, Iraq and Oman, in order of production. The amounts are given in million tonnes of oil equivalent per year (Mtoe/a, 1 Mtoe = 11.63 TWh). The data are of 2013.[7][8]

Total
Mtoe/a
Coal Oil & Gas Nuclear Renewable
WORLD 13600 29% 52% 5% 14%
China 2560 74% 12% 1% 13%
United States 1880 25% 55% 11% 8%
Persian Gulf States 1742 0% 100% 0% 0%
Russia 1316 14% 81% 3% 2%
Africa 1129 13% 53% 0% 33%
European Union 793 20% 26% 29% 26%
India 523 46% 13% 2% 39%
Indonesia 460 61% 23% 0% 16%
Canada 435 8% 75% 6% 11%
Australia 344 77% 21% 0% 2%
Brazil 253 1% 50% 2% 47%
Mexico 217 3% 89% 1% 7%
Venezuela 192 0% 96% 0% 4%
Norway 192 1% 92% 0% 7%
Kazakhstan 169 31% 69% 0% 0%

Two third of the world renewable supply is non-commercial solid biofuel in developing countries.[9]

The top producers of the USA are Texas 20%, Wyoming 11%, Pennsylvania 8%, W Virginia 5% and Oklahoma 4%. [10]

The top producers in Africa are Nigeria (256), S-Africa (166) and Algeria (138).

In the EU France (136, mainly nuclear), Germany (120), UK (110), Poland (71, mainly coal) and Netherlands (69, mainly natural gas) produce most.

Trend

From 2012 to 2014 worldwide production increased 3%, nuclear and fossil rose at about the same rate, renewables increased 6%.[11]

A small part of the renewables, solar and wind energy, increased much more, 46% in this period[12] in line with the strong growth since 1990.[9]

In Brazil windpower inceased 140%, in China not only solar and wind increased fast, 81%, but also nuclear production, 36% from 2012 to 2014.[12]

Between production and final consumption

Primary energy is converted in many ways to energy carriers, also known as secondary energy.

  • Lignite and coal mainly go to thermal power stations. Coke is derived by destructive distillation of bituminous coal.
  • Crude oil goes mainly to oil refineries and is also used to generate electricity and to make coke.
  • Natural-gas goes to processing plants to remove contaminants such as water, carbon dioxide and hydrogen sulfide, and mixed to adjust the heating value.
  • Nuclear reaction heat is used to generate electricity.
  • Biomass is converted to biofuel.

Electricity generators are driven by

Export Import
Persian Gulf States 1167 21
Russia 620 27
Indonesia 301 56
Canada 263 78
Norway 166 8
European Union 539 1451
Japan 18 455
India 72 327
S-Korea 57 291
  • Steam or gas turbines in a thermal plant,
  • or water turbines in a hydropower station,
  • or wind turbines, stand-alone or in a wind farm.

The invention of the PV cell in 1954 started electricity generation by solar panels, connected to a power inverter. Around 2000 mass production of panels made this economical.

Primary and converted energy is much traded among countries. The table lists countries/regions that export most of their energy, followed by countries that must import much for their economies. The quantities are expressed in Mtoe/a and the data are of 2013.[7]

Big transport goes by tanker ship, tank truck, LNG carrier, rail freight transport, pipeline and by electric power transmission.

32% of primary production is used for conversion and transport, and 6% for non-energy products like lubricants, asphalt and petrochemicals. 62% remains for end-users.

Final consumption

This is the world-wide consumption of energy by end-users. This energy consists of fuel (80%) and electricity (20%). The tables lists amounts, expressed in million tonnes of oil equivalent per year (1 Mtoe = 11.63 TWh), and how much of these is renewable energy. Non-energy products are not considered here. The data are of 2013.[7]

Fuel:

  • Fossil fuel: natural gas, fuel derived from petroleum (LPG, gasoline, kerosene, gas/diesel, fuel oil), from coal (anthracite, bituminous coal, coke, lignite, blast furnace gas)
  • Renewable fuel: biofuel and fuel derived from waste, so far as it is traded.
  • District heating.[13]

The amounts are based on lower heating value.

Electricity:

  • See World electricity consumption for details, but note that the table there includes also internal consumption of power plants, about 10% of the totals.

The first table lists world-wide final consumption and the countries/regions which use most (83%). In developing countries fuel consumption per person is low and more renewable. Canada, Venezuela and Brazil generate most electricity with hydropower.

Fuel
Mtoe/a
of which renewable Electricity
Mtoe/a
of which renewable Energy pp
toe/a
WORLD 6800 17% 1680 21% 1.2
China 1390 16% 387 20% 1.3
United States 1050 7% 325 13% 4.4
European Union 801 10% 238 13% 2.1
Africa 485 62% 51 13% 0.5
India 415 41% 77 16% 0.4
Russia 300 1% 64 21% 2.6
Japan 191 2% 82 12% 2.2
Brazil 170 34% 42 82% 1.1
Indonesia 135 40% 16 11% 0.6
Canada 133 9% 42 59% 5.0
Iran 130 0% 18 5% 1.9
Mexico 91 9% 21 23% 1.0
S-Korea 82 4% 42 2% 2.5
Australia 58 8% 18 9% 3.0
Ukraine 53 2% 12 8% 1.4
Argentina 45 1% 10 41% 1.3
Venezuela 36 2% 8 65% 1.5

The next table shows countries consuming most (83%) in the European Union, and Norway. The last four countries generate electricity largely renewable.

Fuel
Mtoe/a
of which renewable Electricity
Mtoe/a
of which renewable Energy pp
toe/a
Germany 158 9% 45 25% 2.5
France 106 12% 38 16% 2.2
United Kingdom 96 2% 27 13% 1.9
Italy 90 10% 25 32% 1.9
Spain 56 9% 20 31% 1.6
Poland 51 12% 11 11% 1.6
Netherlands 38 3% 9 14% 2.8
Belgium 26 8% 7 14% 3.0
Sweden 19 32% 11 55% 3.1
Portugal 11 20% 4 60% 1.5
Denmark 11 13% 3 48% 2.3
Norway 9 11% 9 98% 3.6

Energy for energy

Some fuel end electricity is used to construct, maintain and demolish/recycle installations that produce fuel and electricity, such as oil rigs, uranium isotope separators and wind turbines. For these producers to be economic the ratio of energy returned on energy invested (EROEI) or energy return on investment (EROI) should be large enough. There is little consensus in the technical literature about methods and results in calculating these ratios, but it is likely that for fuels (fossil and nuclear), hydro power and wind turbines the ratio is at least 10, for solar panels about 7 and for solar collectors (hot water) only 2.[14] In southern European countries solar EROEI exceeds ten[15] but more to the North it is less as it takes a greater part of the life time to regain the invested energy,

Outlook until 2040

Based on examination of the Paris Agreement pledges, covering some 190 countries, the IEA expects[4] that the worldwide energy consumption in 2040 will have increased 30% by industrialising India, Southeast Asia and China. Renewable energy sees the fastest growth, natural gas consumption rises by 50%, oil demand tops by 2040 and coal use will not grow.

With this policy the goal, set in the Paris Agreement, will not nearly be reached according to the IEA. More stringent decarbonisation options examined in the IEA Outlook include the 450 Scenario (450 ppm CO2 in the air being associated with 2 C warming). In this scenario nearly 60% of the power generated in 2040 comes from renewables, almost half of this from wind and solar PV. The power sector is largely decarbonised. Structural changes to the design and operation of the power system are needed to integrate high shares of variable wind and solar power. This requires a major reallocation of cumulative investment capital in the energy sector, estimated at $40 trillion. By 2040 the share going to fossil fuels drops towards one-third.

See also

"Providing all global energy with wind, water, and solar power" in Mark Jacobson.

Notes

References

References:
  1. Energy expenditures
  2. Energy is used in the economic sense, not in the physical sense where it is conserved
  3. http://www.iea.org/statistics/statisticssearch/report/?year=2013&country=WORLD&product=Indicators
  4. 4.0 4.1 "World Energy Outlook 2016". IEA. http://www.iea.org/Textbase/npsum/WEO2016SUM.pdf. 
  5. quad = 1015 Btu = 293 TWh, eia.gov–U.S. Energy Information Administration International Energy Statistics
  6. IEA Statistics manual, chapter 7
    • Fossil: based on lower heating value.
    • Nuclear: heat produced by nuclear reactions, 3 times the electric energy, based on 33% efficiency of nuclear plants.
    • Renewable:
      • Biomass based on lower heating value.
      • Electric energy produced by hydropower, wind turbines and solar panels.
      • Geothermal energy used in power plants is set at 10 times the electric energy, assuming 10% efficiency.
  7. 7.0 7.1 7.2 IEA Statistics search select Country/Region, Balances, Year.
  8. The International Energy Agency uses the energy unit Mtoe. Corresponding data are presented by the US Energy Information Administration http://www.eia.doe.gov/ expressed in quads. 1 quad = 1015 BTU = 25.2 Mtoe. The US EIA follows different rules to assess renewable electricity generation. See EIA Glossary, Primary energy production.
  9. 9.0 9.1 IEA Key Renewables Trends
  10. EIA US Overview
  11. Compare World: Balances for 2012 and 2014.
  12. 12.0 12.1 IEA Statistics search, select Country/Region, Electricity and Heat.
  13. In energy statistics this is not part of fuel but a separate part of final consumption like electricity, see IEA Statistics search, select Country/Region, Electricity and Heat.
  14. Charles Hall, http://www.theoildrum.com/node/3810 (2008).
  15. Ugo Bardi, http://http://www.resilience.org/stories/2016-05-24/but-what-s-the-real-energy-return-of-photovoltaic-energy/ (2016).