Copper: Driving the Green Energy Revolution
Copper is known as “man’s first metal”, and for over 10,000 years, it’s been used in applications ranging from architecture to coinage.
However, it was Michael Faraday’s discovery of electromagnetic induction in 1831 that turned demand on its head for the red metal. As the world used more and more electricity, copper became known as the obvious choice as an electrical conductor.
Every year, humans already gobble up around 28 million tonnes of the metal in uses mainly related to its electrical properties – and as we transition to a green energy paradigm, copper will be an even more vital ingredient to human progress than it is today.
Copper in Green Energy
Today’s infographic comes to us from Kutcho Copper, and it dives into copper’s applications with a focus on those in renewable energy.
Renewable energy systems consume approximately five times more copper than conventional power generation systems, making the metal essential for any successful transition to fossil fuel alternatives.
To understand why renewables are so copper intensive, consider that around two hundred 3-megawatt (MW) wind turbines are needed to replace one large steam coal or gas turbine.
Schroders, British asset manager
Looking at data per MW strengthens this case.
For every MW of wind power about 3.6 tonnes of copper is needed – and for every MW of photovoltaic solar capacity, about 4-5 tonnes of copper is required.
Further, roughly three times more copper is used for electric vehicles in comparison to conventional gas-powered vehicles. This alone could create a new major source of copper demand, and Schroders notes that if all 80 million new car sales were EVs today, that it would require 6 million tonnes of additional copper.
While this helps give a sense of perspective, let’s instead look at a less hypothetical case.
By 2035, Bloomberg projects a 43% penetration of EVs in the light-duty vehicle market, which will be roughly equal to 110 million cars. Using the above ratios, that’s about 3.6 million tonnes of extra copper demand – equal to about 15% of the current market.
New Copper Sources?
Despite more copper being needed for green applications, there are some questions around where this new metal may come from.
Copper projects are notoriously large-scale in size, and the pipeline of new projects is the lowest in a century. As a result, analysts are expecting that the long-anticipated supply crunch might come sooner than expected.
Prove Your Metal: Top 10 Strongest Metals on Earth
There are 91 elements that are defined as metals but not all are the same. Here is a breakdown of the top 10 strongest metals and their applications.
Prove Your Metal: Top 10 Strongest Metals on Earth
The use of metals and the advancement of human civilization have gone hand in hand — and throughout the ages, each metal has proved its worth based on its properties and applications.
Today’s visualization from Viking Steel Structures outlines the 10 strongest metals on Earth and their applications.
What are Metals?
Metals are solid materials that are typically hard, shiny, malleable, and ductile, with good electrical and thermal conductivity. But not all metal is equal, which makes their uses as varied as their individual properties and benefits.
The periodic table below presents a simple view of the relationship between metals, nonmetals, and metalloids, which you can easily identify by color.
While 91 of the 118 elements of the periodic table are considered to be metals, only a few of them stand out as the strongest.
What Makes a Metal Strong?
The strength of a metal depends on four properties:
- Tensile Strength: How well a metal resists being pulled apart
- Compressive Strength: How well a material resists being squashed together
- Yield Strength: How well a rod or beam of a particular metal resists bending and permanent damage
- Impact Strength: The ability to resist shattering upon impact with another object or surface
Here are the top 10 metals based on these properties.
The Top 10 Strongest Metals
|Rank||Type of Metal||Example Use||Atomic Weight||Melting Point|
|#1||Tungsten||Making bullets and missiles||183.84 u||3422°C / 6192 °F|
|#2||Steel||Construction of railroads, roads, other infrastructure and appliances||n/a||1371°C / 2500°F|
|#3||Chromium||Manufacturing stainless steel||51.96 u||1907°C / 3465°F,|
|#4||Titanium||In the aerospace Industry, as a lightweight material with strength||47.87 u||1668°C / 3032°F|
|#5||Iron||Used to make bridges, electricity, pylons, bicycle chains, cutting tools and rifle barrels||55.85 u||1536°C / 2800°F|
|#6||Vanadium||80% of vanadium is alloyed with iron to make steel shock and corrosion resistance||50.942 u||1910°C / 3470°F|
|#7||Lutetium||Used as catalysts in petroleum production.||174.96 u||1663 °C / 3025°F|
|#8||Zirconium||Used in nuclear power stations.||91.22 u||1850°C / 3.362°F|
|#9||Osmium||Added to platinum or indium to make them harder.||190.2 u||3000°C / 5,400°F|
|#10||Tantalum||Used as an alloy due to its high melting point and anti-corrosion.||180.94 u||3,017°C / 5462°F|
Out of the Forge and into Tech: Metals for the Future
While these metals help to forge the modern world, there is a new class of metals that are set to create a new future.
Rare Earth elements (REEs) are a group of metals do not rely on their strength, but instead their importance in applications in new technologies, including those used for green energy.
|Neodymium||Magnets containing neodymium are used in green technologies such as the manufacture of wind turbines and hybrid cars.|
|Lanthanum||Used in catalytic converters in cars, enabling them to run at high temperatures|
|Cerium||This element is used in camera and telescope lenses.|
|Praseodymium||Used to create strong metals for use in aircraft engines.|
|Gadolinium||Used in X-ray and MRI scanning systems, and also in television screens.|
|Yttrium, terbium, europium||Making televisions and computer screens and other devices that have visual displays.|
If the world is going to move towards a more sustainable and efficient future, metals—both tough and smart—are going to be critical. Each one will serve a particular purpose to build the infrastructure and technology for the next generation.
Our ability to deploy technology with the right materials will test the world’s mettle to meet the challenges of tomorrow—so choose wisely.
20 Common Metal Alloys and What They’re Made Of
You can’t find stainless steel, brass, sterling silver, or white gold on the periodic table. Learn about 20 common metal alloys, and what they are made from.
Every day, you’re likely to encounter metals that cannot be found anywhere on the periodic table.
You may play a brass instrument while wearing a white gold necklace – or maybe you cook with a cast iron skillet and store your leftovers in a stainless steel refrigerator.
It’s likely that you know these common metal alloys by name, and you can probably even imagine what they look and feel like. But do you know what base metals these alloys are made of, exactly?
Common Metal Alloys
Today’s infographic comes to us from Alan’s Factory Outlet, and it breaks down metal and non-metal components that go into popular metal alloys.
In total, 20 alloys are highlighted, and they range from household names (i.e. bronze, sterling silver) to lesser-known metals that are crucial for industrial purposes (i.e. solder, gunmetal, magnox).
Humans make metal alloys for various reasons.
Some alloys have long-standing historical significance. For example, electrum is a naturally-occurring alloy of gold and silver (with trace amounts of copper) that was used to make the very first metal coins in ancient history.
However, most of the common metal alloys on the above list are actually human inventions that are used to achieve practical purposes. Some were innovated by brilliant metallurgists, while others were discovered by fluke, but they’ve all had an ongoing impact on our species over time.
Alloys with an Impact
The Bronze Age (3,000 BC – 1,200 BC) is an important historical period that is rightfully named after one game-changing development: the ability to use bronze. This alloy, made from copper and tin, was extremely useful to our ancestors because it is much stronger and harder than its component metals.
Steel is another great example of an alloy that has changed the world. It is one of the most important and widely-used metals today. Without steel, modern civilization (skyscrapers, bridges, etc.) simply wouldn’t be possible.
While nobody knows exactly who invented steel, the alloy has a widely-known cousin that was likely invented in somewhat accidental circumstances.
In 1912, English metallurgist Harry Brearley had been tasked with finding a more erosion-resistant steel for a small arms manufacturer, trying many variations of alloys with none seeming to be suitable. However, in his scrap metal heap – where almost all of the metals he tried were rusting – there was one gun barrel that remained astonishingly untouched.
The metal alloy – now known to the world as stainless steel – was a step forward in creating a corrosion-resistant steel that is now used in many applications ranging from medical uses to heavy industry.
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