How Much Copper is in an Electric Vehicle?
Copper’s special relationship with electricity has been apparent since ship designers first regularly began installing copper to protect the masts of wooden ships from lightning in the early 19th century.
Today, of course, you might be more used to seeing copper’s electrical applications through the use of power lines, telephone wires, and wiring in practically every major home appliance you own.
Millions of tons get used for these applications every year, but it is still early days for copper’s use in electrification. That’s because copper will continue to be a critical component of the green energy revolution, thanks to the rising adoption of battery-powered vehicles.
Today’s visualization comes to us from Canadian Platinum Corp., and it focuses on showing how much copper is in an electric vehicle, along with the properties that make it the ideal choice for an EV-powered future.
Here is why copper is a crucial component to vehicle manufacturers:
Copper costs roughly $0.20 per ounce, compared to silver ($15/oz) and gold ($1200/oz), making it by far the cheapest option for electrical wire.
Copper is nearly as conductive as silver – the most conductive metal – but comes at a fraction of the cost.
Copper can easily be shaped into wire, which is important for most electrical applications.
It’s also important to note that temperature does not affect copper’s conductivity, which makes the metal ideal for automobiles in all climates.
Copper in Gas vs. Electric Vehicles
The UBS Evidence Lab tore apart a traditional gas-powered vehicle as well as an EV to compare the different quantities of raw materials used.
What they found was crucial: there is 80% more copper in a Chevrolet Bolt, in comparison to a similar-sized Volkswagen Golf.
The major reason for this is that at the heart of every EV is an electric motor, which is built with copper, steel, and permanent magnets (rare earths). Electric motors tend to be much simpler than gas-powered engines, which have hundreds of moving parts.
Incredibly, in an electric motor, there can be more than a mile of copper wiring inside the stator.
The More Electric, the More Copper
According to Copper.org, along the scale from gas-powered cars to fully electrical vehicles, copper use increases dramatically.
Conventional gas-powered cars contain 18 to 49 lbs. of copper while a battery-powered EV contains 183 lbs. Meanwhile, for a fully electrical bus, a whopping 814 lbs. of copper is needed.
With the rapidly increasing adoption of electric vehicles, copper will be an essential material for the coming electrification of all forms of ground transport.
Copper is at the heart of the electric vehicle and the world will need more. By 2027, copper demand stemming from EVs is expected to increase by 1.7 million tonnes, which is a number just shy of China’s entire copper production in 2017.
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Mapped: Solar Power by Country in 2021
In 2020, solar power saw its largest-ever annual capacity expansion at 127 gigawatts. Here’s a snapshot of solar power capacity by country.
Mapped: Solar Power by Country in 2021
The world is adopting renewable energy at an unprecedented pace, and solar power is the energy source leading the way.
Despite a 4.5% fall in global energy demand in 2020, renewable energy technologies showed promising progress. While the growth in renewables was strong across the board, solar power led from the front with 127 gigawatts installed in 2020, its largest-ever annual capacity expansion.
The above infographic uses data from the International Renewable Energy Agency (IRENA) to map solar power capacity by country in 2021. This includes both solar photovoltaic (PV) and concentrated solar power capacity.
The Solar Power Leaderboard
From the Americas to Oceania, countries in virtually every continent (except Antarctica) added more solar to their mix last year. Here’s a snapshot of solar power capacity by country at the beginning of 2021:
|Country||Installed capacity, megawatts||Watts* per capita||% of world total|
|South Korea 🇰🇷||14,575||217||2.0%|
|United Kingdom 🇬🇧||13,563||200||1.9%|
|South Africa 🇿🇦||5,990||44||0.8%|
|United Arab Emirates 🇦🇪||2,539||185||0.4%|
|Czech Republic 🇨🇿||2,073||194||0.3%|
|El Salvador 🇸🇻||429||66||0.1%|
|Saudi Arabia 🇸🇦||409||12||0.1%|
|Dominican Republic 🇩🇴||370||34||0.1%|
|New Zealand 🇳🇿||142||29||0.02%|
|World total 🌎||713,970||83||100.0%|
*1 megawatt = 1,000,000 watts.
China is the undisputed leader in solar installations, with over 35% of global capacity. What’s more, the country is showing no signs of slowing down. It has the world’s largest wind and solar project in the pipeline, which could add another 400,000MW to its clean energy capacity.
Following China from afar is the U.S., which recently surpassed 100,000MW of solar power capacity after installing another 50,000MW in the first three months of 2021. Annual solar growth in the U.S. has averaged an impressive 42% over the last decade. Policies like the solar investment tax credit, which offers a 26% tax credit on residential and commercial solar systems, have helped propel the industry forward.
Although Australia hosts a fraction of China’s solar capacity, it tops the per capita rankings due to its relatively low population of 26 million people. The Australian continent receives the highest amount of solar radiation of any continent, and over 30% of Australian households now have rooftop solar PV systems.
China: The Solar Champion
In 2020, President Xi Jinping stated that China aims to be carbon neutral by 2060, and the country is taking steps to get there.
China is a leader in the solar industry, and it seems to have cracked the code for the entire solar supply chain. In 2019, Chinese firms produced 66% of the world’s polysilicon, the initial building block of silicon-based photovoltaic (PV) panels. Furthermore, more than three-quarters of solar cells came from China, along with 72% of the world’s PV panels.
With that said, it’s no surprise that 5 of the world’s 10 largest solar parks are in China, and it will likely continue to build more as it transitions to carbon neutrality.
What’s Driving the Rush for Solar Power?
The energy transition is a major factor in the rise of renewables, but solar’s growth is partly due to how cheap it has become over time. Solar energy costs have fallen exponentially over the last decade, and it’s now the cheapest source of new energy generation.
Since 2010, the cost of solar power has seen a 85% decrease, down from $0.28 to $0.04 per kWh. According to MIT researchers, economies of scale have been the single-largest factor in continuing the cost decline for the last decade. In other words, as the world installed and made more solar panels, production became cheaper and more efficient.
This year, solar costs are rising due to supply chain issues, but the rise is likely to be temporary as bottlenecks resolve.
Visualizing Copper’s Role in the Transition to Clean Energy
A clean energy transition is underway as wind, solar, and batteries take center stage. Here’s how copper plays the critical role in these technologies.
A future powered by renewables is not in the distant horizon, but rather in its early hours.
This new dawn comes from a global awareness of the environmental impacts of the current energy mix, which relies heavily on fossil fuels and their associated greenhouse gas emissions.
Technologies such as wind, solar, and batteries offer renewable and clean alternatives and are leading the way for the transition to clean energy. However, as with every energy transition, there are not only new technologies, but also new material demands.
Copper: A Key Piece of the Puzzle
This energy transition will be mineral intensive and it will require metals such as nickel, lithium, and cobalt. However, one metal stands out as being particularly important, and that is copper.
Today’s infographic comes to us from the Copper Development Association and outlines the special role of copper in renewable power generation, energy storage, and electric vehicles.
The red metal has four key properties that make it ideal for the clean energy transition.
It is these properties that make copper the critical material for wind and solar technology, energy storage, and electric vehicles.
It’s also why, according to ThinkCopper, the generation of electricity from solar and wind uses four to six times more copper than fossil fuel sources.
Copper in Wind
A three-megawatt wind turbine can contain up to 4.7 tons of copper with 53% of that demand coming from the cable and wiring, 24% from the turbine/power generation components, 4% from transformers, and 19% from turbine transformers.
The use of copper significantly increases when going offshore. That’s because onshore wind farms use approximately 7,766 lbs of copper per MW, while an offshore wind installation uses 21,068 lbs of copper per MW.
It is the cabling of the offshore wind farms to connect them to each other and to deliver the power that accounts for the bulk of the copper usage.
Copper in Solar
Solar power systems can contain approximately 5.5 tons of copper per MW. Copper is in the heat exchangers of solar thermal units as well as in the wiring and cabling that transmits the electricity in photovoltaic solar cells.
Navigant Research projects that 262 GW of new solar installations between 2018 and 2027 in North America will require 1.9 billion lbs of copper.
Copper in Energy Storage
There are many ways to store energy, but every method uses copper. For example, a lithium ion battery contains 440 lbs of copper per MW and a flow battery 540 lbs of copper per MW.
Copper wiring and cabling connects renewable power generation with energy storage, while the copper in the switches of transformers help to deliver power at the right voltage.
Across the United States, a total of 5,752 MW of energy capacity has been announced and commissioned.
Copper in Electric Vehicles
Copper is at the heart of the electric vehicle (EV). This is because EVs rely on copper for the motor coil that drives the engine.
The more electric the car, the more copper it needs; a car powered by an internal combustion engine contains roughly 48 lbs, a hybrid needs 88 lbs, and a battery electric vehicle uses 184 lbs.
Additionally, the cabling for charging stations of electric vehicles will be another source of copper demand.
The Copper Future
Advances in technologies create new material demands.
Therefore, it shouldn’t be surprising that the transition to renewables is going to create demand for many minerals – and copper is going to be a critical mineral for the new era of energy.
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