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A Visual Crash Course on Geothermal Energy

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geothermal energy infographic

A Visual Crash Course on Geothermal Energy

Geothermal is a lesser-known type of renewable energy that uses heat from the Earth’s molten core to produce electricity.

While this unique feature gives it key benefits over solar and wind, geothermal also suffers from high costs and geographic restrictions. Because of this, few countries have managed to produce geothermal energy at scale.

In this infographic, we’ve used a combination of diagrams and charts to give you a high level overview of this sustainable energy source.

How Geothermal Works

Geothermal energy is produced by accessing reservoirs of hot water that are found several miles below the Earth’s surface. In certain parts of the planet, this water naturally breaks through the surface, creating what’s known as a hot spring (or, in some cases, a geyser).

When accessed via a well, this pressurized water rises and rapidly expands into steam. That steam is used to spin a turbine, which then drives an electric generator.

Further along the process, excess steam is condensed back into water as it passes through a cooling tower. Finally, an injection well pumps this water back into the Earth to ensure sustainability.

Where Is Geothermal Energy Being Used?

As of 2021, global geothermal power generation amounted to 16 gigawatts (GW). However, only a handful of countries have surpassed the 1 GW milestone.

CountryInstalled Capacity (GW)
🇺🇸 U.S.3.7
🇮🇩 Indonesia2.3
🇵🇭 Philippines1.9
🇹🇷 Turkey1.7
🇳🇿 New Zealand1
🇲🇽 Mexico1
🇮🇹 Italy0.9
🇰🇪 Kenya0.9
🇮🇸 Iceland0.8
🇯🇵 Japan 0.6
🌎 Rest of World1.1

To give these numbers context, consider the following datapoints:

  • America’s 3.7 GW capacity is split across 61 geothermal plants.
  • The world’s largest solar plant, the Bhadla Solar Park, has a maximum output of 2.2 GW
  • The world’s largest hydroelectric plant, the Three Gorges Dam, can produce up to 22.5 GW

While geothermal plants produce less power, they have benefits over other types of renewables. For example, geothermal energy is not impacted by day-night cycles, weather conditions, or seasons.

The Big Picture

We now look at a second dataset, which shows the global contribution of each type of renewable energy. These figures are as of April 2022 and were sourced from the International Renewable Energy Agency (IRENA).

TypeInstalled Capacity (% of total)Installed Capacity (GW)
Hydro40%1226
Solar28%858
Wind27%827
Others
(Geothermal)
5%
(0.5%)
153
(15*)
Total100%3064

*Geothermal’s total capacity in this dataset differs from the previous value of 16GW. This is due to different sources and rounding.

One reason for the slow adoption of geothermal energy is that it can only be built in regions that have suitable geological features (such as places where there is volcanic activity).

To expand on that point, consider the following data from Fitch Solutions, which shows the forecasted growth of geothermal energy capacity by region.

geothermal energy growth by region

Fitch believes that the majority of new geothermal capacity will be installed in Asia over the next decade. On the flipside, investment in North America and Western Europe (NAWE) is expected to decrease.

Over the coming years, NAWE will experience a gradual slowdown in geothermal capacity additions as we expect that investments will be crowded out by cheaper wind and solar projects.
– Fitch Solutions

The top markets for geothermal are expected to be Indonesia, the Philippines, and New Zealand, which all lie along the Pacific Ring of Fire. The Ring of Fire is a path along the Pacific Ocean where most volcanic activity occurs.

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Energy Shift

Ranked: The Most Carbon-Intensive Sectors in the World

Comparing average Scope 1 emission intensities by sector, according to an analysis done by S&P Global Inc.

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Ranked: The Most Carbon-Intensive Sectors in the World

Ever wonder which sectors contribute the most to CO2 emissions around the world?

In this graphic, we explore the answers to that question by comparing average Scope 1 emission intensities by sector, according to an analysis done by S&P Global Inc.

Defining Scope 1 Emissions

Before diving into the data, it may be useful to understand what Scope 1 emissions entail.

Scope 1 emissions are direct greenhouse gas emissions from sources that are owned or controlled by a company, such as their facilities and vehicles.

Source: U.S. Environmental Protection Agency

Scope 1 emissions can do a good job of highlighting a company’s environmental footprint because they represent the direct emissions related to manufacturing or creating a company’s products, whether they are tangible goods, digital software, or services.

Scope 2 and 3 emissions, on the other hand, encompass the indirect emissions associated with a company’s activities, including those from a company’s purchased electricity, leased assets, or investments.

Ranking the Carbon Giants

According to S&P Global’s analysis of 2019-2020 average emissions intensity by sector, utilities is the most carbon-intensive sector in the world, emitting a staggering 2,634 tonnes of CO2 per $1 million of revenue.

Materials and energy sectors follow behind, with 918 tonnes and 571 tonnes of CO2 emitted, respectively.

SectorSector ExplanationScope 1 CO2 emissions per $1M of revenue, 2019-2020
UtilitiesElectric, gas, and water utilities and independent producers2,634 tonnes
MaterialsChemicals, construction materials, packaging, metals, and mining918 tonnes
EnergyOil and gas exploration/production and energy equipment571 tonnes
IndustrialsCapital goods, commercial services, and transportation194 tonnes
Consumer staplesFood, household goods, and personal products90 tonnes
Consumer discretionaryAutomobiles, consumer durables, apparel, and retailing33 tonnes
Real estateReal estate and real estate management31 tonnes
Information technologySoftware, technology hardware, and semiconductors24 tonnes
FinancialsBanks, insurance, and diversified financials19 tonnes
Communication servicesTelecommunication, media, and entertainment9 tonnes
Health careHealth care equipment, pharmaceuticals, biotechnology, and life sciences7 tonnes

S&P Global also reveals some interesting insights when it comes to various industries within the materials sector, including:

  • Cement manufacturing exhibits an extremely high level of Scope 1 emissions, emitting more than double the emissions from the utilities sector (5,415 tonnes of CO2 per $1M of revenue)
  • Aluminum and steel production are also quite emission-intensive, emitting 1,421 and 1,390 tonnes respectively in 2019-2020
  • Relatively lower-emission materials such as gold, glass, metals and paper products bring down the average emissions of the materials sector

Given these trends, a closer look at emission-intensive industries and sectors is necessary for our urgent need to decarbonize the global economy.

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Energy Shift

Ranked: The World’s Biggest Oil Producers

Just three countries—the U.S., Saudi Arabia and Russia—make up the lion’s share of global oil supply. Here are the world’s biggest oil producers.

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Oil by Country

Ranked: The World’s Biggest Oil Producers

This visualization originally appeared on Visual Capitalist

In 2022 oil prices peaked at more than $100 per barrel, hitting an eight-year high, after a full year of turmoil in the energy markets in the wake of the Russian invasion of Ukraine.

Oil companies doubled their profits and the economies of the biggest oil producers in the world got a major boost.

But which countries are responsible for most of the world’s oil supply? Using data from the Statistical Review of World Energy by the Energy Institute, we’ve visualized and ranked the world’s biggest oil producers.

Ranked: Oil Production By Country, in 2022

The U.S. has been the world’s biggest oil producer since 2018 and continued its dominance in 2022 by producing close to 18 million barrels per day (B/D). This accounted for nearly one-fifth of the world’s oil supply.

Almost three-fourths of the country’s oil production is centered around five states: Texas, New Mexico, North Dakota, Alaska, and Colorado.

We rank the other major oil producers in the world below.

RankCountry2022 Production
(Thousand B/D)
YoY ChangeShare of
World Supply
1🇺🇸 U.S.17,770+6.5%18.9%
2🇸🇦 Saudi Arabia12,136+10.8%12.9%
3🇷🇺 Russia11,202+1.8%11.9%
4🇨🇦 Canada5,576+3.0%5.9%
5🇮🇶 Iraq4,520+10.2%4.8%
6🇨🇳 China4,111+2.9%4.4%
7🇦🇪 UAE4,020+10.4%4.3%
8🇮🇷 Iran3,822+4.6%4.1%
9🇧🇷 Brazil3,107+3.9%3.3%
10🇰🇼 Kuwait3,028+12.0%3.2%
11🇲🇽 Mexico1,944+0.9%2.1%
12🇳🇴 Norway1,901-6.3%2.0%
13🇰🇿 Kazakhstan1,769-2.0%1.9%
14🇶🇦 Qatar1,768+1.8%1.9%
15🇩🇿 Algeria1,474+8.9%1.6%
16🇳🇬 Nigeria1,450-11.2%1.5%
17🇦🇴 Angola1,190+1.1%1.3%
18🇱🇾 Libya1,088-14.3%1.2%
19🇴🇲 Oman1,064+9.6%1.1%
20🇬🇧 UK778-11.0%0.8%
21🇨🇴 Colombia754+2.4%0.8%
22🇮🇳 India737-3.8%0.8%
23🇻🇪 Venezuela731+8.1%0.8%
24🇦🇷 Argentina706+12.4%0.8%
25🇦🇿 Azerbaijan685-5.6%0.7%
26🇮🇩 Indonesia644-6.9%0.7%
27🇪🇬 Egypt613+0.8%0.7%
28🇲🇾 Malaysia567-1.7%0.6%
29🇪🇨 Ecuador481+1.7%0.5%
30🇦🇺 Australia420-5.2%0.4%
31🇹🇭 Thailand331-17.5%0.4%
32🇨🇩 Congo269-1.7%0.3%
33🇹🇲 Turkmenistan244+1.0%0.3%
34🇻🇳 Vietnam194-1.2%0.2%
35🇬🇦 Gabon191+5.4%0.2%
36🇸🇸 South Sudan141-7.6%0.2%
37🇵🇪 Peru128+0.5%0.1%
38🇹🇩 Chad124+6.2%0.1%
39🇬🇶 Equatorial
Guinea
119-9.2%0.1%
40🇸🇾 Syria93-2.7%0.1%
41🇮🇹 Italy92-7.9%0.1%
42🇧🇳 Brunei92-13.8%0.1%
43🇾🇪 Yemen81-2.4%0.1%
44🇹🇹 Trinidad
& Tobago
74-3.6%0.1%
45🇷🇴 Romania65-6.2%0.1%
46🇩🇰 Denmark65-1.6%0.1%
47🇺🇿 Uzbekistan63-0.9%0.1%
48🇸🇩 Sudan62-3.3%0.1%
49🇹🇳 Tunisia40-12.9%0.0%
50Other CIS43+4.4%0.0%
51Other Middle East210+1.2%0.2%
52Other Africa283-3.4%0.3%
53Other Europe230-20.5%0.2%
54Other Asia Pacific177-10.6%0.2%
55Other S. &
Cent. America
381+68.5%0.4%
Total World93,848+4.2%100.0%

Behind America’s considerable lead in oil production, Saudi Arabia (ranked 2nd) produced 12 million B/D, accounting for about 13% of global supply.

Russia came in third with 11 million B/D in 2022. Together, these top three oil producing behemoths, along with Canada (4th) and Iraq (5th), make up more than half of the entire world’s oil supply.

Meanwhile, the top 10 oil producers, including those ranked 6th to 10th—China, UAE, Iran, Brazil, and Kuwait—are responsible for more than 70% of the world’s oil production.

Notably, all top 10 oil giants increased their production between 2021–2022, and as a result, global output rose 4.2% year-on-year.

Major Oil Producing Regions in 2022

The Middle East accounts for one-third of global oil production and North America makes up almost another one-third of production. The Commonwealth of Independent States—an organization of post-Soviet Union countries—is another major regional producer of oil, with a 15% share of world production.

Region2022 Production
(Thousand B/D)
YoY ChangeShare of
World Supply
Middle East30,743+9.2%32.8%
North America25,290+5.3%27.0%
CIS14,006+0.9%14.9%
Africa7,043-3.5%7.5%
Asia Pacific7,273-1.4%7.8%
South & Central
America
6,3617.2%6.8%
Europe3,131-8.6%3.3%

What’s starkly apparent in the data however is Europe’s declining share of oil production, now at 3% of the world’s supply. In the last 20 years the EU’s oil output has dropped by more than 50% due to a variety of factors, including stricter environmental regulations and a shift to natural gas.

Another lens to look at regional production is through OPEC members, which control about 35% of the world’s oil output and about 70% of the world’s oil reserves.

A pictogram of the regional per day production by the biggest oil producers in 2022.

When taking into account the group of 10 oil exporting countries OPEC has relationships with, known as OPEC+, the share of oil production increases to more than half of the world’s supply.

Oil’s Big Balancing Act

Since it’s the very lifeblood of the modern economy, the countries that control significant amounts of oil production also reap immense political and economic benefits. Entire regions have been catapulted into prosperity and wars have been fought over the control of the resource.

At the same time, the ongoing effort to pivot to renewable energy is pushing many major oil exporters to diversify their economies. A notable example is Saudi Arabia, whose sovereign wealth fund has invested in companies like Uber and WeWork.

However, the world still needs oil, as it supplies nearly one-third of global energy demand.

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