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Visualizing the World’s Largest Hydroelectric Dams

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largest hydroelectric dams

Visualizing the World’s Largest Hydroelectric Dams

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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Electrification

Will Direct Lithium Extraction Disrupt the $90B Lithium Market?

Visual Capitalist and EnergyX explore how direct lithium extraction could disrupt the $90B lithium industry.

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Will Direct Lithium Extraction Disrupt the $90B Lithium Market?

Current lithium extraction and refinement methods are outdated, often harmful to the environment, and ultimately inefficient. So much so that by 2030, lithium demand will outstrip supply by a projected 1.42 million metric tons. But there is a solution: Direct lithium extraction (DLE).

For this graphic, we partnered with EnergyX to try to understand how DLE could help meet global lithium demands and change an industry that is critical to the clean energy transition.

The Lithium Problem

Lithium is crucial to many renewable energy technologies because it is this element that allows EV batteries to react. In fact, it’s so important that projections show the lithium industry growing from $22.2B in 2023 to nearly $90B by 2030.

But even with this incredible growth, as you can see from the table, refined lithium production will need to increase 86.5% over and above current projections.

2022 (million metric tons)2030P (million metric tons)
Lithium Carbonate Demand0.461.21
Lithium Hydroxide Demand0.181.54
Lithium Metal Demand00.22
Lithium Mineral Demand0.070.09
Total Demand0.713.06
Total Supply0.751.64

The Solution: Direct Lithium Extraction

DLE is a process that uses a combination of solvent extraction, membranes, or adsorbents to extract and then refine lithium directly from its source. LiTASTM, the proprietary DLE technology developed by EnergyX, can recover an incredible 300% more lithium per ton than existing processes, making it the perfect tool to help meet lithium demands.

Additionally, LiTASTM can refine lithium at the lowest cost per unit volume directly from brine, an essential step in meeting tomorrow’s lithium demand and manufacturing next-generation batteries, while significantly reducing the footprint left by lithium mining.

Hard Rock MiningUnderground ReservoirsDirect Lithium Extraction
Direct CO2 Emissions15,000 kg5,000 kg3.5 kg
Water Use170 m3469 m334-94 m3
Lithium Recovery Rate58%30-40%90%
Land Use464 m23124 m20.14 m2
Process TimeVariable18 months1-2 days

Providing the World with Lithium

DLE promises to disrupt the outdated lithium industry by improving lithium recovery rates and slashing emissions, helping the world meet the energy demands of tomorrow’s electric vehicles.

EnergyX is on a mission to become a worldwide leader in the sustainable energy transition using groundbreaking direct lithium extraction technology. Don’t miss your chance to join companies like GM and invest in EnergyX to transform the future of renewable energy.

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Electrification

Chart: The $400 Billion Lithium Battery Value Chain

In this graphic, we break down where the $400 billion lithium battery industry will generate revenue in 2030.

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Breaking Down the $400 Billion Battery Value Chain

As the world transitions away from fossil fuels toward a greener future, the lithium battery industry could grow fivefold by 2030. This shift could create over $400 billion in annual revenue opportunities globally.

For this graphic, we partnered with EnergyX to determine how the battery industry could grow by 2030.

Exploring the Battery Value Chain

The lithium battery value chain has many links within it that each generate their own revenue opportunities, these include:

  • Critical Element Production: Involves the mining and refining of materials used in a battery’s construction.
  • Active materials: Creating and developing materials that react electrochemically to allow batteries to charge and discharge.
  • Battery cells: Involves the production of rechargeable elements of a battery.
  • Battery packs: Producing packs containing a series of connected battery cells. Generally, these come in two types: NMC/NMCA, the standard in North America and Europe, and LFP, the standard in China.
  • Recycling: Reusing battery components within new batteries.

But these links aren’t equal, each one is projected to generate different levels of revenue by 2030:

China 🇨🇳Europe 🇪🇺United States 🇺🇸Rest of World 🌍
Total$184B$118B$62B$39B
Critical Element Production$37B$25B$15B$8B
Active Materials$54B$31B$14B$11B
Battery Packs$34B$22B$11B$7B
Battery Cells$53B$37B$20B$11B
Recycling$6B$3B$2B$2B

On the surface, battery cell production may contribute the most revenue to the battery value chain. However, lithium production can generate margins as high as 65%, meaning lithium production has potential to yield large margins.

How Much Lithium Is Available?

Just a few countries hold 81% of the world’s viable lithium. So, supply bottlenecks could slow the growth of the lithium battery industry:

NationViable Lithium Reserves (2023)
Chile 🇨🇱9.3M t
Australia 🇦🇺6.2M t
Argentina 🇦🇷2.7M t
China 🇨🇳2M t
U.S. 🇺🇸1M t
Rest of World 🌍4.9M t

Supplying the World With Batteries

Supplying the world with lithium is critical to the battery value chain and a successful transition from fossil fuels. Players like the U.S. and the EU, with increasingly large and growing lithium needs, will need to maximize local opportunities and work together to meet demand.

EnergyX is on a mission to become a world leader in the global transition to sustainable energy, using cutting-edge direct lithium extraction to help supply the world with lithium.

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