Charting Energy Consumption by Source and Country
View the interactive version of this post by clicking here.
Over the last 50 years, the world has seen a colossal increase in energy consumption—and with the ongoing transition to renewable energy, it’s interesting to look at how these sources of energy have been evolving over time.
While some countries continue to rely heavily on fossil fuels like oil, coal, and natural gas, others have integrated alternative energy sources into their mix.
This visualization comes to us from Brian Moore and it charts the evolution of energy consumption in the 64 countries that have data available for all of the last 50 years.
Tera-What? The Most Prominent Sources of Energy (2009-2018)
First, let’s take a look at which sources have produced the most energy over the last decade of data. Energy consumption is measured in terawatt-hours (TWh)—a unit of energy equal to outputting one trillion watts for an hour.
|Energy Source||% of Total Energy Consumption |
|Sum of Total Energy
Looking at this data, it’s clear that fossil fuels have been used much more than alternative sources. A deeper dive into the topic helps explain why.
Fossil Fuels: What the Data Shows
As the predominant source of energy, fossil fuels collectively accounted for a massive 86.2% of total energy consumption over 2009-2018, or roughly 1.2 million TWh. If you’re wondering, that’s enough to power the equivalent of 109 billion U.S. homes with electricity for a year.
Among fossil fuel sources, oil emerges as the clear leader, responsible for 34.3% or 509,800 TWh of energy consumption over 2009-2018. Apart from being the primary fuel for transportation throughout history, oil remains relatively affordable—making it an easy choice for producers and consumers alike.
Closely following oil is coal, which countries rely on for its abundance, low costs, and low infrastructure requirements. Over the last decade of data, 29.2% of total energy came from coal, amounting to a substantial 434,300 TWh.
As a cleaner alternative to coal, natural gas has increased in popularity. Gas accounted for 22.8% or 339,300 TWh of energy consumed between 2009-2018, mainly attributed to its ample supply and affordability.
What About Renewables?
Only 13.8% of energy consumption over 2009-2018 came from renewable or alternative sources of energy, and hydropower accounts for nearly half of it. Why has the use of environmentally-friendly energy sources been so low?
Setting up alternative power plants—especially wind, solar, and nuclear—requires significant capital investment, while facing competition from cheaper and more convenient fossil fuels. The barriers to adopting renewable energy have been weakening, but still remain quite high for low-income countries.
Wind and solar energy were responsible for a mere 1.7% of energy consumption. Compared to fossil fuels like oil and coal, this percentage seems even more minuscule than it does on its own—mainly attributable to the high costs traditionally associated with wind and solar energy.
The Top 10 Countries Relying on Fossil Fuels
Fossil fuels have been the predominant source of energy over the years. After all, 43 of these 64 countries sourced more than 80% of their energy from fossil fuels over 2009-2018.
Here are the ones that come out on top:
|Country||% of Energy Consumed From Fossil Fuels|
|Most Used Fossil Fuel
|Saudi Arabia 🇸🇦||100%||Oil|
|Trinidad and Tobago 🇹🇹||100%||Gas|
|United Arab Emirates 🇦🇪||99.9%||Gas|
|Hong Kong 🇭🇰||99.9%||Oil|
Although it is startling to see that several countries were 100% reliant on fossil fuels, it comes as no surprise that these are countries with abundant reserves of oil or natural gas. Not only are fossil fuels central to certain economies in Middle Eastern and North African (MENA), but they also remain highly affordable for consumers in these places.
On a broader scale, developing and low-income countries are heavily dependent on fossil fuels such as coal for access to cheap electricity and ease of installation.
The Top 10 Countries Using Alternative Energy Sources
The transition to alternative energy sources has been welcomed by many countries, but only a few have prioritized its adoption in the energy mix. Here’s a look at the top 10:
|Country||% of Energy From Alternative Sources|
|Most Used Alternative Energy Source
|New Zealand 🇳🇿||37.2%||Hydropower|
Iceland is the only country to have sourced over 80% of its energy from alternative sources over 2009-2018. In general, developed European countries are leading the charge—with Iceland, Norway, Sweden, Switzerland, and France making the top five.
The dominance of hydropower is notable, and so is the lack of wind and solar energy sources. Denmark had the highest percentage of wind energy in its mix, with 14.5%, whereas Italy had the highest percentage of solar, with just 2.4%.
It should be kept in mind that this percentage does not account for population differences. For example, although Italy boasted the highest percentage of solar in its energy mix with 2.4%, China consumed the most amount of energy from solar sources—despite it accounting for only 0.3% of total Chinese energy consumption.
Nevertheless, the costs of solar and wind energy have been falling continuously, and the potential for growth in the renewable energy sector is higher than ever.
The Transition to Renewables: Are We On Track?
Since the Industrial Revolution, fossil fuels have been the primary source of energy worldwide. More recently, the use of renewable energy sources has increased, but not substantially enough.
This predominant reliance on fossil fuels is not doing the transition to renewable energy any favors, but it shines a light on the massive untapped potential for alternative energies, especially in the developing world.
With the prices of renewable energy at record lows and increasing investment flows, the next decade will be a defining one for the global transition to clean energy.
Correction: A modified version of Brian Moore’s visualization was previous published here. We’ve since updated it to the original design.
Visualizing China’s Dominance in Clean Energy Metals
Despite being the world’s biggest carbon emitter, China is also a key producer of most of the critical minerals for the green revolution.
Visualizing China’s Dominance in Clean Energy Metals
Renewable sources of energy are expected to replace fossil fuels over the coming decades, and this large-scale transition will have a downstream effect on the demand of raw materials. More green energy means more wind turbines, solar panels, and batteries needed, and more clean energy metals necessary to build these technologies.
This visualization, based on data from the International Energy Agency (IEA), illustrates where the extraction and processing of key metals for the green revolution take place.
It shows that despite being the world’s biggest carbon polluter, China is also the largest producer of most of the world’s critical minerals for the green revolution.
Where Clean Energy Metals are Produced
China produces 60% of all rare earth elements used as components in high technology devices, including smartphones and computers.
The country also has a 13% share of the lithium production market, which is still dominated by Australia (52%) and Chile (22%). The highly reactive element is key to producing rechargeable batteries for mobile phones, laptops, and electric vehicles.
But even more than extraction, China is the dominant economy when it comes to processing operations. The country’s share of refining is around 35% for nickel, 58% for lithium, 65% for cobalt, and 87% for rare earth elements.
Despite being the largest economy in the world, the U.S. does not appear among the largest producers of any of the metals listed. To shorten the gap, the Biden administration recently launched an executive order to review the American strategy for critical and strategic materials.
It’s also worth noting that Russia also does not appear among the top producers when it comes to clean energy metals, despite being one of the world’s leading producers of minerals like copper, iron, and palladium.
Low Regulation in the Clean Metal Supply Chain
While China leads all countries in terms of cobalt processing, the metal itself is primarily extracted in the Democratic Republic of Congo (DRC). Still, Chinese interests own 15 of the 17 industrial cobalt operations in the DRC, according to a data analysis by The New York Times and Benchmark Mineral Intelligence.
Unfortunately, the DRC’s cobalt production has been criticized due to reports of corruption and lack of regulation.
Part of the Congolese cobalt comes from artisanal mines with low regulation. Of the 255,000 Congolese artisanal miners, an estimated 40,000 are children, some as young as six years old.
The Rise of Clean Energy Metals
The necessary shift from fossil fuels to renewable energy opens up interesting questions about how geopolitics, and these supply chains, will be affected.
In the race to secure raw materials needed for the green revolution, new world powers could emerge as demand for clean energy metals grows.
For now, China has the lead.
Ranked: Nuclear Power Production, by Country
Nuclear power accounted for 10% of global electricity generated in 2020. Here’s a look at the largest nuclear power producers.
Nuclear Power Production by Country
Nearly 450 reactors around the world supply various nations with nuclear power, combining for about 10% of the world’s electricity, or about 4% of the global energy mix.
But while some countries are turning to nuclear as a clean energy source, nuclear energy generation overall has seen a slowdown since its peak in the 1990s.
The above infographic breaks down nuclear electricity generation by country in 2020 using data from the Power Reactor Information System (PRIS).
Ranked: The Top 15 Countries for Nuclear Power
Just 15 countries account for more than 91% of global nuclear power production. Here’s how much energy these countries produced in 2020:
|Rank||Country||Number of Operating Reactors||Nuclear Electricity Supplied|
|#5||South Korea 🇰🇷||24||152,583||6.0%|
|Rest of the World 🌎||44||207,340||8.1%|
In the U.S., nuclear power produces over 50% of the country’s clean electricity. Additionally, 88 of the country’s 96 operating reactors in 2020 received approvals for a 20-year life extension.
China, the world’s second-largest nuclear power producer, is investing further in nuclear energy in a bid to achieve its climate goals. The plan, which includes building 150 new reactors by 2035, could cost as much as $440 billion.
On the other hand, European opinions on nuclear energy are mixed. Germany is the eighth-largest on the list but plans to shutter its last operating reactor in 2022 as part of its nuclear phase-out. France, meanwhile, plans to expand its nuclear capacity.
Which Countries Rely Most on Nuclear Energy?
Although total electricity generation is useful for a high-level global comparison, it’s important to remember that there are some smaller countries not featured above where nuclear is still an important part of the electricity mix.
Here’s a breakdown based on the share of nuclear energy in a country’s electricity mix:
|Rank||Country||Nuclear Share of Electricity Mix|
|#13||South Korea 🇰🇷||29.6%|
|#17||United States 🇺🇸||19.7%|
|#19||United Kingdom 🇬🇧||14.5%|
European countries dominate the leaderboard with 14 of the top 15 spots, including France, where nuclear power is the country’s largest source of electricity.
It’s interesting to note that only a few of these countries are top producers of nuclear in absolute terms. For example, in Slovakia, nuclear makes up 53.6% of the electricity mix—however, the country’s four reactors make up less than 1% of total global operating capacity.
On the flipside, the U.S. ranks 17th by share of nuclear power in its mix, despite producing 31% of global nuclear electricity in 2020. This discrepancy is largely due to size and population. European countries are much smaller and produce less electricity overall than larger countries like the U.S. and China.
The Future of Nuclear Power
The nuclear power landscape is constantly changing.
There were over 50 additional nuclear reactors under construction in 2020, and hundreds more are planned primarily in Asia.
As countries turn away from fossil fuels and embrace carbon-free energy sources, nuclear energy might see a resurgence in the global energy mix despite the phase-outs planned in several countries around the globe.
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