Visualizing the History of Energy Transitions
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Visualizing the History of Energy Transitions

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History of Energy Transitions

The History of Energy Transitions

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Over the last 200 years, how we’ve gotten our energy has changed drastically⁠.

These changes were driven by innovations like the steam engine, oil lamps, internal combustion engines, and the wide-scale use of electricity. The shift from a primarily agrarian global economy to an industrial one called for new sources to provide more efficient energy inputs.

The current energy transition is powered by the realization that avoiding the catastrophic effects of climate change requires a reduction in greenhouse gas emissions. This infographic provides historical context for the ongoing shift away from fossil fuels using data from Our World in Data and scientist Vaclav Smil.

Coal and the First Energy Transition

Before the Industrial Revolution, people burned wood and dried manure to heat homes and cook food, while relying on muscle power, wind, and water mills to grind grains. Transportation was aided by using carts driven by horses or other animals.

In the 16th and 17th centuries, the prices of firewood and charcoal skyrocketed due to shortages. These were driven by increased consumption from both households and industries as economies grew and became more sophisticated.

Consequently, industrializing economies like the UK needed a new, cheaper source of energy. They turned to coal, marking the beginning of the first major energy transition.

YearTraditional Biomass % of Energy MixCoal % of Energy Mix
180098.3%1.7%
182097.6%2.4%
184095.1%4.9%
186086.8%13.3%
188073.0%26.7%
190050.4%47.2%
192038.4%54.4%
194031.6%50.7%

As coal use and production increased, the cost of producing it fell due to economies of scale. Simultaneously, technological advances and adaptations brought about new ways to use coal.

The steam engine—one of the major technologies behind the Industrial Revolution—was heavily reliant on coal, and homeowners used coal to heat their homes and cook food. This is evident in the growth of coal’s share of the global energy mix, up from 1.7% in 1800 to 47.2% in 1900.

The Rise of Oil and Gas

In 1859, Edwin L. Drake built the first commercial oil well in Pennsylvania, but it was nearly a century later that oil became a major energy source.

Before the mass production of automobiles, oil was mainly used for lamps. Oil demand from internal combustion engine vehicles started climbing after the introduction of assembly lines, and it took off after World War II as vehicle purchases soared.

Similarly, the invention of the Bunsen burner opened up new opportunities to use natural gas in households. As pipelines came into place, gas became a major source of energy for home heating, cooking, water heaters, and other appliances.

YearCoal % of Energy MixOil % of Energy MixNatural Gas % of Energy Mix
195044.2%19.1%7.3%
196037.0%26.6%10.7%
197025.7%40.2%14.5%
198023.8%40.6%16.3%
199024.4%35.5%18.4%
200022.5%35.1%19.7%

Coal lost the home heating market to gas and electricity, and the transportation market to oil.

Despite this, it became the world’s most important source of electricity generation and still accounts for over one-third of global electricity production today.

The Transition to Renewable Energy

Renewable energy sources are at the center of the ongoing energy transition. As countries ramp up their efforts to curb emissions, solar and wind energy capacities are expanding globally.

Here’s how the share of renewables in the global energy mix changed over the last two decades:

YearTraditional BiomassRenewablesFossil FuelsNuclear Power
200010.2%6.6%77.3%5.9%
20058.7%6.5%79.4%5.4%
20107.7%7.7%79.9%4.7%
20156.9%9.2%79.9%4.0%
20206.7%11.2%78.0%4.0%

In the decade between 2000 and 2010, the share of renewables increased by just 1.1%. But the growth is speeding up—between 2010 and 2020, this figure stood at 3.5%.

Furthermore, the current energy transition is unprecedented in both scale and speed, with climate goals requiring net-zero emissions by 2050. That essentially means a complete fade-out of fossil fuels in less than 30 years and an inevitable rapid increase in renewable energy generation.

Renewable energy capacity additions were on track to set an annual record in 2021, following a record year in 2020. Additionally, global energy transition investment hit a record of $755 billion in 2021.

However, history shows that simply adding generation capacity is not enough to facilitate an energy transition. Coal required mines, canals, and railroads; oil required wells, pipelines, and refineries; electricity required generators and an intricate grid.

Similarly, a complete shift to low-carbon sources requires massive investments in natural resources, infrastructure, and grid storage, along with changes in our energy consumption habits.

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Energy

Mapped: Global Energy Prices, by Country in 2022

Energy prices have been extremely volatile in 2022. Which countries are seeing the highest prices in the world?

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Energy Prices

Mapped: Global Energy Prices, by Country in 2022

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For some countries, energy prices hit historic levels in 2022.

Gasoline, electricity, and natural gas prices skyrocketed as Russia’s invasion of Ukraine ruptured global energy supply chains. Households and businesses are facing higher energy bills amid extreme price volatility. Uncertainty surrounding the war looms large, and winter heating costs are projected to soar.

Given the global consequences of the energy crisis, the above infographic shows the price of energy for households by country, with data from GlobalPetrolPrices.com.

1. Global Energy Prices: Gasoline

Which countries and regions pay the most for a gallon of gas?

RankCountry/ RegionGasoline Prices
(USD per Gallon)
1🇭🇰 Hong Kong$11.1
2🇨🇫 Central African Republic$8.6
3🇮🇸 Iceland$8.5
4🇳🇴 Norway$8.1
5🇧🇧 Barbados$7.8
6🇩🇰 Denmark$7.7
7🇬🇷 Greece$7.6
8🇫🇮 Finland$7.6
9🇳🇱 Netherlands$7.6
10🇧🇪 Belgium$7.4
11🇬🇧 United Kingdom$7.2
12🇪🇪 Estonia$7.2
13🇨🇭 Switzerland$7.2
14🇸🇬 Singapore$7.2
15🇸🇪 Sweden$7.1
16🇸🇨 Seychelles$7.1
17🇮🇱 Israel$7.0
18🇩🇪 Germany$7.0
19🇺🇾 Uruguay$7.0
20🇼🇫 Wallis and Futuna$7.0
21🇱🇮 Liechtenstein$6.9
22🇮🇪 Ireland$6.8
23🇵🇹 Portugal$6.8
24🇱🇻 Latvia$6.7
25🇧🇿 Belize$6.7
26🇦🇱 Albania$6.6
27🇦🇹 Austria$6.6
28🇲🇨 Monaco$6.6
29🇪🇸 Spain$6.5
30🇨🇿 Czech Republic$6.5
31🇲🇼 Malawi$6.5
32🇰🇾 Cayman Islands$6.4
33🇸🇰 Slovakia$6.4
34🇲🇺 Mauritius$6.3
35🇱🇺 Luxembourg$6.3
36🇱🇹 Lithuania$6.3
37🇦🇩 Andorra$6.3
38🇮🇹 Italy$6.3
39🇺🇬 Uganda$6.2
40🇭🇺 Hungary$6.2
41🇯🇴 Jordan$6.2
42🇸🇾 Syria$6.1
43🇫🇷 France$6.0
44🇧🇮 Burundi$6.0
45🇧🇸 Bahamas$6.0
46🇳🇿 New Zealand$5.8
47🇸🇲 San Marino$5.8
48🇭🇷 Croatia$5.8
49🇷🇴 Romania$5.7
50🇾🇹 Mayotte$5.7
51🇷🇼 Rwanda$5.7
52🇿🇲 Zambia$5.7
53🇷🇸 Serbia$5.7
54🇱🇦 Laos$5.6
55🇲🇳 Mongolia$5.6
56🇰🇪 Kenya$5.6
57🇨🇾 Cyprus$5.6
58🇯🇲 Jamaica$5.5
59🇲🇰 Northern Macedonia$5.5
60🇨🇱 Chile$5.5
61🇧🇦 Bosnia$5.5
62🇱🇨 Saint Lucia$5.4
63🇵🇱 Poland$5.4
64🇩🇴 Dominican Republic$5.4
65🇨🇦 Canada$5.4
66🇲🇦 Morocco$5.4
67🇦🇼 Aruba$5.4
68🇸🇮 Slovenia$5.3
69🇧🇬 Bulgaria$5.3
70🇵🇪 Peru$5.3
71🇱🇰 Sri Lanka$5.3
72🇨🇷 Costa Rica$5.2
73🇲🇬 Madagascar$5.2
74🇬🇳 Guinea$5.2
75🇳🇵 Nepal$5.2
76🇲🇿 Mozambique$5.2
77🇳🇮 Nicaragua$5.2
78🇲🇱 Mali$5.1
79🇸🇳 Senegal$5.1
80🇺🇦 Ukraine$5.1
81🇩🇲 Dominica$5.0
82🇲🇪 Montenegro$5.0
83🇲🇹 Malta$5.0
84🇲🇩 Moldova$5.0
85🇨🇩 DR Congo$5.0
86🇨🇼 Curacao$4.9
87🇨🇻 Cape Verde$4.9
88🇧🇩 Bangladesh$4.9
89🇱🇷 Liberia$4.8
90🇰🇭 Cambodia$4.8
91🇮🇳 India$4.8
92🇨🇺 Cuba$4.8
93🇭🇳 Honduras$4.7
94🇬🇪 Georgia$4.7
95🇿🇦 South Africa$4.7
96🇹🇿 Tanzania$4.7
97🇫🇯 Fiji$4.7
98🇨🇳 China$4.7
99🇲🇽 Mexico$4.6
100🇬🇹 Guatemala$4.6

Source: GlobalPetrolPrices.com. As of October 31, 2022. Represents average household prices.

At an average $11.10 per gallon, households in Hong Kong pay the highest for gasoline in the world—more than double the global average. Both high gas taxes and steep land costs are primary factors behind high gas prices.

Like Hong Kong, the Central African Republic has high gas costs, at $8.60 per gallon. As a net importer of gasoline, the country has faced increased price pressures since the war in Ukraine.

Households in Iceland, Norway, and Denmark face the highest gasoline costs in Europe. Overall, Europe has seen inflation hit 10% in September, driven by the energy crisis.

2. Global Energy Prices: Electricity

Extreme volatility is also being seen in electricity prices.

The majority of the highest household electricity prices are in Europe, where Denmark, Germany, and Belgium’s prices are about double that of France and Greece. For perspective, electricity prices in many countries in Europe are more than twice or three times the global average of $0.14 per kilowatt-hour.

Over the first quarter of 2022, household electricity prices in the European Union jumped 32% compared to the year before.

RankCountry/ RegionElectricity Prices
(kWh, USD)
1🇩🇰 Denmark$0.46
2🇩🇪 Germany$0.44
3🇧🇪 Belgium$0.41
4🇧🇲 Bermuda$0.40
5🇰🇾 Cayman Islands$0.35
6🇯🇲 Jamaica$0.34
7🇬🇧 United Kingdom$0.32
8🇪🇸 Spain$0.32
9🇳🇱 Netherlands$0.32
10🇧🇧 Barbados$0.32
11🇪🇪 Estonia$0.32
12🇱🇹 Lithuania$0.31
13🇦🇹 Austria$0.31
14🇮🇹 Italy$0.30
15🇨🇿 Czech Republic$0.29
16🇨🇻 Cape Verde$0.28
17🇮🇪 Ireland$0.28
18🇸🇪 Sweden$0.27
19🇧🇸 Bahamas$0.26
20🇬🇹 Guatemala$0.26
21🇱🇮 Liechtenstein$0.26
22🇨🇾 Cyprus$0.25
23🇷🇼 Rwanda$0.25
24🇭🇳 Honduras$0.24
25🇺🇾 Uruguay$0.24
26🇵🇹 Portugal$0.24
27🇸🇻 El Salvador$0.23
28🇱🇻 Latvia$0.22
29🇫🇮 Finland$0.22
30🇱🇺 Luxembourg$0.22
31🇧🇿 Belize$0.22
32🇯🇵 Japan$0.22
33🇨🇭 Switzerland$0.22
34🇵🇪 Peru$0.21
35🇰🇪 Kenya$0.21
36🇦🇺 Australia$0.21
37🇧🇷 Brazil$0.20
38🇲🇱 Mali$0.20
39🇸🇬 Singapore$0.19
40🇷🇴 Romania$0.19
41🇧🇫 Burkina Faso$0.19
42🇸🇮 Slovenia$0.19
43🇬🇦 Gabon$0.19
44🇸🇰 Slovakia$0.19
45🇦🇼 Aruba$0.19
46🇬🇷 Greece$0.19
47🇫🇷 France$0.18
48🇳🇿 New Zealand$0.18
49🇹🇬 Togo$0.18
50🇳🇮 Nicaragua$0.17
51🇻🇪 Venezuela$0.17
52🇵🇦 Panama$0.17
53🇵🇭 Philippines$0.17
54🇵🇱 Poland$0.17
55🇮🇱 Israel$0.16
56🇺🇲 U.S.$0.16
57🇺🇬 Uganda$0.16
58🇭🇰 Hong Kong$0.16
59🇸🇳 Senegal$0.16
60🇲🇴 Macao$0.15
61🇨🇱 Chile$0.15
62🇰🇭 Cambodia$0.15
63🇿🇦 South Africa$0.14
64🇲🇺 Mauritius$0.14
65🇲🇬 Madagascar$0.14
66🇭🇷 Croatia$0.14
67🇮🇸 Iceland$0.14
68🇳🇴 Norway$0.13
69🇲🇹 Malta$0.13
70🇲🇿 Mozambique$0.13
71🇨🇴 Colombia$0.13
72🇧🇬 Bulgaria$0.12
73🇲🇻 Maldives$0.12
74🇨🇷 Costa Rica$0.12
75🇨🇦 Canada$0.11
76🇲🇼 Malawi$0.11
77🇨🇮 Ivory Coast$0.11
78🇳🇦 Namibia$0.11
79🇲🇦 Morocco$0.11
80🇹🇭 Thailand$0.10
81🇦🇲 Armenia$0.10
82🇯🇴 Jordan$0.10
83🇹🇿 Tanzania$0.10
84🇸🇿 Swaziland$0.10
85🇪🇨 Ecuador$0.10
86🇧🇼 Botswana$0.10
87🇩🇴 Dominican Republic$0.10
88🇲🇰 Northern Macedonia$0.10
89🇦🇱 Albania$0.10
90🇱🇸 Lesotho$0.09
91🇸🇱 Sierra Leone$0.09
92🇮🇩 Indonesia$0.09
93🇧🇾 Belarus$0.09
94🇭🇺 Hungary$0.09
95🇧🇦 Bosnia & Herzegovina$0.09
96🇹🇼 Taiwan$0.09
97🇰🇷 South Korea$0.09
98🇲🇽 Mexico$0.09
99🇷🇸 Serbia$0.09
100🇨🇩 DR Congo$0.08

Source: GlobalPetrolPrices.com. As of March 31, 2022. Represents average household prices.

In the U.S., consumer electricity prices have increased nearly 16% annually compared to September last year, the highest increase in over four decades, fueling higher inflation.

However, households are more sheltered from the impact of Russian supply disruptions due to the U.S. being a net exporter of energy.

3. Global Energy Prices: Natural Gas

Eight of the 10 highest natural gas prices globally fall in Europe, with the Netherlands at the top. Overall, European natural gas prices have spiked sixfold in a year since the invasion of Ukraine.

RankCountry/ RegionNatural Gas Prices
(kWh, USD)
1🇳🇱 Netherlands$0.41
2🇸🇪 Sweden$0.24
3🇩🇪 Germany$0.21
4🇧🇷 Brazil$0.20
5🇩🇰 Denmark$0.19
6🇪🇸 Spain$0.17
7🇮🇹 Italy$0.16
8🇦🇹 Austria$0.16
9🇸🇬 Singapore$0.15
10🇧🇪 Belgium$0.15
11🇭🇰 Hong Kong$0.14
12🇨🇿 Czech Republic$0.14
13🇬🇷 Greece$0.12
14🇫🇷 France$0.12
15🇯🇵 Japan$0.11
16🇬🇧 United Kingdom$0.10
17🇨🇭 Switzerland$0.10
18🇨🇱 Chile$0.10
19🇵🇹 Portugal$0.09
20🇧🇧 Barbados$0.09
21🇵🇱 Poland$0.09
22🇧🇬 Bulgaria$0.09
23🇮🇪 Ireland$0.08
24🇦🇺 Australia$0.07
25🇲🇽 Mexico$0.07
26🇳🇿 New Zealand$0.06
27🇸🇰 Slovakia$0.06
28🇺🇲 U.S.$0.05
29🇰🇷 South Korea$0.04
30🇨🇴 Colombia$0.04
31🇨🇦 Canada$0.03
32🇷🇸 Serbia$0.03
33🇹🇼 Taiwan$0.03
34🇺🇦 Ukraine$0.03
35🇲🇾 Malaysia$0.03
36🇭🇺 Hungary$0.03
37🇹🇳 Tunisia$0.02
38🇦🇿 Azerbaijan$0.01
39🇧🇭 Bahrain$0.01
40🇧🇩 Bangladesh$0.01
41🇹🇷 Turkey$0.01
42🇷🇺 Russia$0.01
43🇦🇷 Argentina$0.01
44🇧🇾 Belarus$0.01
45🇩🇿 Algeria$0.00
46🇮🇷 Iran$0.00

Source: GlobalPetrolPrices.com. As of March 31, 2022. Represents average household prices.

The good news is that the fall season has been relatively warm, which has helped European natural gas demand drop 22% in October compared to last year. This helps reduce the risk of gas shortages transpiring later in the winter.

Outside of Europe, Brazil has the fourth highest natural gas prices globally, despite producing about half of supply domestically. High costs of cooking gas have been especially challenging for low-income families, which became a key political issue in the run-up to the presidential election in October.

Meanwhile, Singapore has the highest natural gas prices in Asia as the majority is imported via tankers or pipelines, leaving the country vulnerable to price shocks.

Increasing Competition

By December, all seaborne crude oil shipments from Russia to Europe will come to a halt, likely pushing up gasoline prices into the winter and 2023.

Concerningly, analysis from the EIA shows that European natural gas storage capacities could sink to 20% by February if Russia completely shuts off its supply and demand is not reduced.

As Europe seeks out alternatives to Russian energy, higher demand could increase global competition for fuel sources, driving up prices for energy in the coming months ahead.

Still, there is some room for optimism: the World Bank projects energy prices will decline 11% in 2023 after the 60% rise seen after the war in Ukraine in 2022.

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Energy

Visualizing the World’s Largest Hydroelectric Dams

Hydroelectric dams generate 40% of the world’s renewable energy, the largest of any type. View this infographic to learn more.

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Visualizing the World’s Largest Hydroelectric Dams

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Did you know that hydroelectricity is the world’s biggest source of renewable energy? According to recent figures from the International Renewable Energy Agency (IRENA), it represents 40% of total capacity, ahead of solar (28%) and wind (27%).

This type of energy is generated by hydroelectric power stations, which are essentially large dams that use the water flow to spin a turbine. They can also serve secondary functions such as flow monitoring and flood control.

To help you learn more about hydropower, we’ve visualized the five largest hydroelectric dams in the world, ranked by their maximum output.

Overview of the Data

The following table lists key information about the five dams shown in this graphic, as of 2021. Installed capacity is the maximum amount of power that a plant can generate under full load.

CountryDamRiverInstalled Capacity
(gigawatts)
Dimensions
(meters)
🇨🇳 ChinaThree Gorges DamYangtze River22.5181 x 2,335
🇧🇷 Brazil / 🇵🇾 ParaguayItaipu DamParana River14.0196 x 7,919
🇨🇳 ChinaXiluodu DamJinsha River13.9286 x 700
🇧🇷 BrazilBelo Monte DamXingu River11.290 X 3,545
🇻🇪 VenezuelaGuri DamCaroni River10.2162 x 7,426

At the top of the list is China’s Three Gorges Dam, which opened in 2003. It has an installed capacity of 22.5 gigawatts (GW), which is close to double the second-place Itaipu Dam.

In terms of annual output, the Itaipu Dam actually produces about the same amount of electricity. This is because the Parana River has a low seasonal variance, meaning the flow rate changes very little throughout the year. On the other hand, the Yangtze River has a significant drop in flow for several months of the year.

For a point of comparison, here is the installed capacity of the world’s three largest solar power plants, also as of 2021:

  • Bhadla Solar Park, India: 2.2 GW
  • Hainan Solar Park, China: 2.2 GW
  • Pavagada Solar Park, India: 2.1 GW

Compared to our largest dams, solar plants have a much lower installed capacity. However, in terms of cost (cents per kilowatt-hour), the two are actually quite even.

Closer Look: Three Gorges Dam

The Three Gorges Dam is an engineering marvel, costing over $32 billion to construct. To wrap your head around its massive scale, consider the following facts:

  • The Three Gorges Reservoir (which feeds the dam) contains 39 trillion kg of water (42 billion tons)
  • In terms of area, the reservoir spans 400 square miles (1,045 square km)
  • The mass of this reservoir is large enough to slow the Earth’s rotation by 0.06 microseconds

Of course, any man-made structure this large is bound to have a profound impact on the environment. In a 2010 study, it was found that the dam has triggered over 3,000 earthquakes and landslides since 2003.

The Consequences of Hydroelectric Dams

While hydropower can be cost-effective, there are some legitimate concerns about its long-term sustainability.

For starters, hydroelectric dams require large upstream reservoirs to ensure a consistent supply of water. Flooding new areas of land can disrupt wildlife, degrade water quality, and even cause natural disasters like earthquakes.

Dams can also disrupt the natural flow of rivers. Other studies have found that millions of people living downstream from large dams suffer from food insecurity and flooding.

Whereas the benefits have generally been delivered to urban centers or industrial-scale agricultural developments, river-dependent populations located downstream of dams have experienced a difficult upheaval of their livelihoods.
– Richter, B.D. et al. (2010)

Perhaps the greatest risk to hydropower is climate change itself. For example, due to the rising frequency of droughts, hydroelectric dams in places like California are becoming significantly less economical.

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