Three decades of innovation in lithium batteries and a 99% drop in price, in an illuminating graph

The world has been immersed for years in two essential transitions to leave fossil fuels behind: energy and mobility. But for both to be possible, it is an essential requirement that a technology continue to improve and also drop in price: that of batteries, one of the main components of electric cars and the one responsible for storing excess energy in times of energy surpluses, for example in wind and solar energy. And in fact, this is what he has done: In the last 35 years the price of lithium batteries has plummeted 99%. In 1991, a lithium ion battery cost $9,210 per kWh (in constant 2024 dollars). In 2023, that same kilowatt-hour cost $111: we are talking about a drop of almost 99% in almost three decades. To make it tangible, Hannah Ritchie and Pablo Rosado of Our World in Data gives an example applied to car batteries: the battery of a current standard electric car with a range of 350 to 400 kilometers today costs about $5,000. A decade ago the same component would have cost more than $20,000. In 1991, almost $600,000. There is a strategic threshold that we have surpassed recently: 100 dollars/hWh, considered historically the point of economic parity with the internal combustion vehicle, but At the end of 2025 we will already overcome the barrier reaching 84 dollars/kWh. First of all, let’s start with the presentations: the graphics are from Our World in Dataa project of the Global Change Data Lab linked to the University of Oxford. And the primary source is a data series updated by Rupert Way, built on the original work by Ziegler and Trancik and completed with data from BloombergNEF and Avicenne Energy. All data is expressed in constant 2024 dollars. The price of lithium batteries has fallen 99% in 35 years The first graph shows the evolution of the price of lithium ion cells between 1991 and 2024, in constant 2024 dollars per kWh on a logarithmic axis. The line declines continuously and sharply throughout the series of years without any signs of stabilization until ending around $50-60/kWh in 2024. Evolution of the price of lithium ion batteries: 1991 – 2024. Our World in Data The second graph combines price with global accumulated production and uses a double logarithmic scale: it starts from an installed capacity of 130 kWh in 1991 and reaches 3,510 GWh in 2023. That the line remains straight for more than three decades, in two different graphs and with data from different sources, confirms that The price drop is not a coincidence or a streak. It is a stable mathematical pattern that allows you to project where prices will go. This trend is more important than the fall itself. Every time global cumulative production doubles, battery prices have fallen by 19%. Our World in Data This second chart shows that every time global cumulative lithium-ion battery production doubled, the price fell by 19%. That is the learning rate known as Wright’s Law. The learning curve remains stable for more than thirty years, regardless of financial crises, supply problems and even a pandemic. Behind that graph is that enormous jump from the 130 kWh installed in 1991 to 3,510 GWh in 2023. That is 27 million times more capacity in three decades and each doubling along the way led to a 19% reduction in price. With the current rate of installation, these duplications occur in less and less time, which implies that the curve is not going to slow down due to inertia. These graphs do not describe the past: they are a projection of the future. A stable learning rate of 19% per capacity doubling is a planning tool: it helps the industry and its actors to reliably estimate when storage will reach cost thresholds that make the electricity grid viable with high renewable penetration. According to IRENAthe cost of solar energy fell by 90% between 2010 and 2023 following the same logic. That the threshold has fallen below $100/kWh already has consequences: the European Commission estimates that the EU will need between 200 and 600 GWh of storage by 2030 and precisely this trajectory means that Europe will get the bills for its energy transition. However, we cannot lose sight of the fact that the graphs show the average cell price of the different types of lithium ion batteries, which have very different profiles of cost, life cycles or energy density. That doesn’t appear on the graph. Nor that battery cost is not everythingsince it has associated costs, such as installation or replacement. Likewise, it does not touch on the structural risks of the supply chain: lithium, cobalt or nickel are geographically concentrated and vulnerable to geopolitical tensions, such as warns the International Energy Agency. And although they are becoming cheaper, their weight and volume are still a handicap for some scenarios such as aviation or heavy trucks. In Xataka | The last piece of the renewable puzzle now fits: the price of storage batteries has reached its minimum In Xataka | China dominates the world of renewable energy, but it has an Achilles heel: it depends on the West more than it admits Cover | Our World in data

a journey of 550 years of colonialism through an illuminating graphic

On August 14, 1415 in Ceuta, a Portuguese troop under the command of King John I landed in the North African city and conquered it in less than a day. This overseas adventure would mark the starting signal for an aggressive policy that would mark the world geography for centuries to come: that of European powers permanently taking possession of a territory outside the old continent with a clear will to squat itkeep it and exploit it. Colonialism. The Oxford University-linked project Our World in Data has some magnificent open access work such as this either this which are worth stopping and taking a look at. The data from the last come from Colonial Dates Dataset and are prepared by researcher Bastian Becker from the University of Bremen and are the ones Visual Capitalist has condensed in the form of an infographic, synthesizing the data of the best historians of colonialism. In short: a lot of information in a single image that shows the rise and fall of many European empires. Visual Capitalist. Data from Our World in Data – Colonialism Portugal, it all started with you. Officially we can frame the Portuguese empire in a time frame between 1415 and 1999. Portugal was not so much interested in expanding but rather have access to the gold of West Africa, to the spices of the East and to seek Christian allies against Islam. His sequence of conquests was unstoppable: in 1488 Bartolomeu Dias rounded the Cape of Good Hope, in 1498 Vasco da Gama arrived in India, in 1500 Pedro Álvares Cabral touched Brazil. Its model was that of a network of coastal enclaves, although it also had large territorial colonies such as Brazil, Angola and Mozambique. Visual Capitalist. Data from Our World in Data – Colonialism The Empire where the sun never sets. A short time later, the Spain that was being formed after the wedding of Isabel of Castile and Ferdinand of Aragon and the conquest of the strategic and independent Kingdom of Navarra. The empire where the sun never sets (referring to the period of Charles I and Philip II) is formally delimited between 1492 and 1976. Spain opted for territorial control: in a matter of a few decades it had overthrown the Aztec and Inca empires in blood, fire and smallpox. In the 18th century the Spanish empire covered 13.7 million square kilometers and was made up of viceroyalties, House of Contract, Councils of India… a display of global governance that got out of hand. France, Great Britain and the others. The real furor of this policy came in 1914, at which time there were 101 colonies. The spotlight fell on Great Britain, where the Industrial Revolution constituted a true differential advantage in the form of capital, railways and weapons to lay the foundations for the largest empire in history. In fact, at that height more than half of the colonies were theirs. France focused mainly on Africa and Southeast Asia, while others such as Belgium, Germany, the Netherlands and Italy were left with some succulent leftovers scattered mainly in Africa, but also in Asia. The mechanism of colonization in its maximum expression was synthesized in the Berlin conference (1885) where the European powers literally divided up Africa without any African people being present. Visual Capitalist. Data from Our World in Data – Colonialism The B side of colonization. The graph shows numbers, curves and colors, but the real story is much darker and not only because of the looting. The academic project “Dartmouth & Slavery Project” of the famous Dartmouth University reflects that 74% of the indigenous population of the Americas was annihilated between 1492 and 1800, either by direct violence or by diseases to which they were not immune. In Africa things were no better: between 25 and 30 million people were torn from their homes to be enslaved, as explains Amnesty International. The consequences are not only historical: colonialism generated racism, racial discrimination and xenophobia, as recognized the Durban Declaration in 2001. The great absence: Russia. The graph tracks overseas colonies and there Russia appears marginal, but because where others expanded by sea, the Russian Empire did so by land: over time it covered Siberia, Central Asia, the Caucasus and parts of Eastern Europe. This study of Loyola University Chicago concludes that the Russian Empire was “a colonial empire in denial,” with essentially colonial practices, especially in Asia. The end of empires: decolonization and inheritances. The colonization process went slowly but surely until it reached its peak and then it collapsed. The two world wars exhausted the powers economically, militarily and also morally (their population) and at that juncture the independence movements found the perfect moment. The Napoleonic Wars were the ideal occasion for the decolonization of Iberian America and in the 20th century, the wave of decolonization swept Africa and Asia in a few decades, although today some overseas territories still persist in special conditions that, although they are no longer considered colonies in the strict and traditional sense of the term, still have self-determination on the table. In Xataka | Africa has more than 30,000 kilometers of coastline and one country has managed to control them without anyone noticing: China In Xataka | The death of one empire is the birth of another: the graph that reviews the history of civilizations from 4,000 years ago Cover | Visual Capitalist

The rebirth of an old system that is illuminating remote villages in India: the hydraulic wheel

While the big cities They have opted for self -consumption through solar panels and even wind turbinesmany remote areas of the world still fight to have a renewable system. However, in Kashmir, they have found a cheap, effective and inspired solution in the past: the hydraulic wheel. An old advance. Surely the name of the hydraulic wheel will not come a direct image to the head, but if I describe a inn away from an village in the central European area, which had a large wheel shape that spinned with the water can be more enlightening. The fact is that they were important during the industrial revolution To perform mechanical tasks such as milling or hammering. However, its use began to decrease with the expansion of burning fossil fuels and the development of electricity. However, like fashions, everything comes back, and more if the original idea was good. So with the rise of renewable energies, hydraulic wheels have resurfaced as a viable option to produce electricity in a clean and continuous way in remote and impoverished areas. A new clean source. Initial investments in renewables usually have a high cost that not everyone can afford. But what if they turn to an old energy system? That is what a group of researchers from the Technical University of Munich thought that They have managed to install A hydraulic wheel in a town of Kashmir, India. The wheel in question measures about two meters and lets the stream water pass to produce electricity. In this way, it provides an uninterrupted energy source to the community, so it does not need centralized power, which was previously a problem with frequent cuts. In addition, the hydraulic wheel is accompanied by the use of other renewable energy systems, including the Decentralized microredwhich allows the inhabitants of the people to enjoy energy independence and resilience before a possible blackout. Self -sufficient One of the highlights of the hydraulic wheel is its high efficiency, reaching the 85% energy conversion. As for the assembly cost of this system, it is relatively low, around $ 1,000, so it makes them accessible to different impoverished rural communities. In addition, the design is available on the Internet for free. Only in rural areas. Hydraulic wheels are designed for rural and remote areas, specifically in communities that need a continuous and reliable energy source. This type of system offers a simple and economical way to generate electricity without depending on fossil fuels or intermittent energy sources. In addition, its environmental impact is minimal, since they do not emit carbon and, According to studiesdamage to aquatic life is reduced. While this type of technology has limitations and is not suitable for all contexts, its potential to improve the energy self -sufficiency of small communities could make a considerable difference. More for the world. The benefits of this technology are not limited to Kashmir. A similar system has been implemented in Nepal and a prototype has been developed in Tegernsee, Germany. In addition, in Northern Ireland, a hydraulic wheel has been restored with an old mill in Fermanagh County, which now supplies electricity to a restaurant. Image | The Waterwheel Project V1.0 Xataka | China prepares the most expensive megaestructure on the planet: a hydroelectric power plant on the most controversial place possible

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