While fossil fuels offer an easily transportable, affordable, and energy-dense fuel for everyday use, the burning of this fuel creates pollutants, which can concentrate in city centers degrading the quality of air and life for residents.
The world is looking for alternative ways to ensure the mobility of people and goods with different power sources, and electric vehicles have high potential to fill this need.
But did you know that not all electric vehicles produce their electricity in the same way?
Hydrogen: An Alternative Vision for the EV
The world obsesses over battery technology and manufacturers such as Tesla, but there is an alternative fuel that powers rocket ships and is road-ready. Hydrogen is set to become an important fuel in the clean energy mix of the future.
Today’s infographic comes from the Canadian Hydrogen and Fuel Cell Association (CHFCA) and it outlines the case for hydrogen.
Hydrogen Supply and Demand
Some scientists have made the argument that it was not hydrogen that caused the infamous Hindenburg to burst into flames. Instead, the powdered aluminum coating of the zeppelin, which provided its silver look, was the culprit. Essentially, the chemical compound coating the dirigibles was a crude form of rocket fuel.
Industry and business have safely used, stored, and transported hydrogen for 50 years, while hydrogen-powered electric vehicles have a proven safety record with over 10 million miles of operation. In fact, hydrogen has several properties that make it safer than fossil fuels:
- 14 times lighter than air and disperses quickly
- Flames have low radiant heat
- Less combustible
Since hydrogen is the most abundant chemical element in the universe, it can be produced almost anywhere with a variety of methods, including from fuels such as natural gas, oil, or coal, and through electrolysis. Fossil fuels can be treated with extreme temperatures to break their hydrocarbon bonds, releasing hydrogen as a byproduct. The latter method uses electricity to split water into hydrogen and oxygen.
Both methods produce hydrogen for storage, and later consumption in an electric fuel cell.
Fuel Cell or Battery?
Battery and hydrogen-powered vehicles have the same goal: to reduce the environmental impact from oil consumption. There are two ways to measure the environmental impact of vehicles, from “Well to Wheels” and from “Cradle to Grave”.
Well to wheels refers to the total emissions from the production of fuel to its use in everyday life. Meanwhile, cradle to grave includes the vehicle’s production, operation, and eventual destruction.
According to one study, both of these measurements show that hydrogen-powered fuel cells significantly reduce greenhouse gas emissions and air pollutants. For every kilometer a hydrogen-powered vehicle drives it produces only 2.7 grams per kilometer (g/km) of carbon dioxide while a battery electric vehicle produces 20 g/km.
During everyday use, both options offer zero emissions, high efficiency, an electric drive, and low noise, but hydrogen offers weight-saving advantages that battery-powered vehicles do not.
In one comparison, Toyota’s Mirai had a maximum driving range of 312 miles, 41% further than Tesla’s Model 3 220-mile range. The Mirai can refuel in minutes, while the Model 3 has to recharge in 8.5 hours for only a 45% charge at a specially configured quick charge station not widely available.
However, the world still lacks the significant infrastructure to make this hydrogen-fueled future possible.
Large scale production delivers economic amounts of hydrogen. In order to achieve this scale, an extensive infrastructure of pipelines and fueling stations are required. However to build this, the world needs global coordination and action.
Countries around the world are laying the foundations for a hydrogen future. In 2017, CEOs from around the word formed the Hydrogen Council with the mission to accelerate the investment in hydrogen.
Globally, countries have announced plans to build 2,800 hydrogen refueling stations by 2025. German pipeline operators presented a plan to create a 1,200-kilometer grid by 2030 to transport hydrogen across the country, which would be the world’s largest in planning.
Fuel cell technology is road-ready with hydrogen infrastructure rapidly catching up. Hydrogen can deliver the power for a new clear energy era.
Which Countries Have the World’s Largest Proven Oil Reserves?
The world holds 1.73 trillion barrels of proven oil reserves. Here we rank the top 14 countries that make up 93.5% of the world.
The Countries With the Largest Proven Oil Reserves
Oil is a natural resource formed by the decay of organic matter over millions of years, and like many other natural resources, it can only be extracted from reserves where it already exists. The only difference between oil and every other natural resource is that oil is well and truly the lifeblood of the global economy.
The world derives over a third of its total energy production from oil, more than any other source by far. As a result, the countries that control the world’s oil reserves often have disproportionate geopolitical and economic power.
According to the BP Statistical Review of World Energy 2020, 14 countries make up 93.5% of the proven oil reserves globally. The countries on this list span five continents and control anywhere from 25.2 billion barrels of oil to 304 billion barrels of oil.
Proven Oil Reserves, by Country
At the end of 2019, the world had 1.73 trillion barrels of oil reserves. Here are the 14 countries with at least a 1% share of global proven oil reserves:
|Rank||Country||Oil Reserves |
|Share of Global Reserves|
|#2||🇸🇦 Saudi Arabia||298||17.2%|
|#9||🇺🇸 United States||69||4.0%|
While these countries are found all over the globe, a few countries have much larger amounts than others. Venezuela is the leading country in terms of oil reserves, with over 304 billion barrels of oil beneath its surface. Saudi Arabia is a close second with 298 billion, and Canada is third with 170 billion barrels of oil reserves.
Oil Reserves vs. Oil Production
A country with large amounts of reserves does not always translate to strong production numbers for petroleum, oil, and by-products. Oil reserves simply serve as an estimate of the amount of economically recoverable crude oil in a particular region. To qualify, these reserves must have the potential of being extracted under current technological constraints.
While countries like the U.S. and Russia are low on the list of oil reserves, they rank highly in terms of oil production. More than 95 million barrels of oil were produced globally every day in 2019, and the U.S., Saudi Arabia, and Russia are among the world’s top oil-producing countries, respectively.
Oil Sands Contributing to Growing Reserves
Venezuela has long been an oil-producing country with heavy economic reliance on oil exports. However, in 2011, Venezuela’s energy and oil ministry announced an unprecedented increase in proven oil reserves as oil sands in the Orinoco Belt territory were certified.
Between 2005 and 2015, Venezuela jumped from fifth in the world to number one as nearly 200 billion barrels of proven oil reserves were identified. As a result, South and Central America’s proven oil reserves more than doubled between 2008 and 2011.
In 2002, Canada’s proven oil reserves jumped from 5 billion to 180 billion barrels based on new oil sands estimates.
Canada accounts for almost 10% of the world’s proven oil reserves at 170 billion barrels, with an estimated 166.3 billion located in Alberta’s oil sands, and the rest found in conventional, offshore, and tight oil formations.
Large Reserves in OPEC Nations
The Organization of the Petroleum Exporting Countries (OPEC) is an intergovernmental global petroleum and oil distribution agency headquartered in Vienna, Austria.
The majority of countries with the largest oil reserves in the world are members of OPEC. Now composed of 14 member states, OPEC holds nearly 70% of crude oil reserves worldwide.
Most OPEC countries are in the Middle East, the region with the largest oil reserves, holding nearly half of the global share.
Though most of the proven oil reserves in the world were historically considered to be centered in the Middle East, in the past three decades their share of global oil reserves has dropped, from over 60% in 1992 to about 48% in 2019.
One of the main reasons for this drop was constant oil production and greater reserves discovered in the Americas. By 2012, Central and South America’s share had more than doubled and has remained just under 20% in the years since.
While oil sands ushered in a new era of global oil reserve domination, as the world shifts away from oil consumption and towards green energy and electrification, these reserves might not matter as much in the future as they once did.
Visualizing the Power Consumption of Bitcoin Mining
Bitcoin mining requires significant amounts of energy, but what does this consumption look like when compared to countries and companies?
Visualizing the Power Consumption of Bitcoin Mining
Cryptocurrencies have been some of the most talked-about assets in recent months, with bitcoin and ether prices reaching record highs. These gains were driven by a flurry of announcements, including increased adoption by businesses and institutions.
Lesser known, however, is just how much electricity is required to power the Bitcoin network. To put this into perspective, we’ve used data from the University of Cambridge’s Bitcoin Electricity Consumption Index (CBECI) to compare Bitcoin’s power consumption with a variety of countries and companies.
Why Does Bitcoin Mining Require So Much Power?
When people mine bitcoins, what they’re really doing is updating the ledger of Bitcoin transactions, also known as the blockchain. This requires them to solve numerical puzzles which have a 64-digit hexadecimal solution known as a hash.
Miners may be rewarded with bitcoins, but only if they arrive at the solution before others. It is for this reason that Bitcoin mining facilities—warehouses filled with computers—have been popping up around the world.
These facilities enable miners to scale up their hashrate, also known as the number of hashes produced each second. A higher hashrate requires greater amounts of electricity, and in some cases can even overload local infrastructure.
Putting Bitcoin’s Power Consumption Into Perspective
On March 18, 2021, the annual power consumption of the Bitcoin network was estimated to be 129 terawatt-hours (TWh). Here’s how this number compares to a selection of countries, companies, and more.
|Name||Population||Annual Electricity Consumption (TWh)|
|All of the world’s data centers||-||205|
|State of New York||19.3M||161|
|Walt Disney World Resort (Florida)||-||1|
Note: A terawatt hour (TWh) is a measure of electricity that represents 1 trillion watts sustained for one hour.
Source: Cambridge Centre for Alternative Finance, Science Mag, New York ISO, Forbes, Facebook, Reedy Creek Improvement District, Worldometer
If Bitcoin were a country, it would rank 29th out of a theoretical 196, narrowly exceeding Norway’s consumption of 124 TWh. When compared to larger countries like the U.S. (3,989 TWh) and China (6,543 TWh), the cryptocurrency’s energy consumption is relatively light.
For further comparison, the Bitcoin network consumes 1,708% more electricity than Google, but 39% less than all of the world’s data centers—together, these represent over 2 trillion gigabytes of storage.
Where Does This Energy Come From?
In a 2020 report by the University of Cambridge, researchers found that 76% of cryptominers rely on some degree of renewable energy to power their operations. There’s still room for improvement, though, as renewables account for just 39% of cryptomining’s total energy consumption.
Here’s how the share of cryptominers that use each energy type vary across four global regions.
|Energy Source||Asia-Pacific||Europe||Latin America|
and the Caribbean
Source: University of Cambridge
Editor’s note: Numbers in each column are not meant to add to 100%
Hydroelectric energy is the most common source globally, and it gets used by at least 60% of cryptominers across all four regions. Other types of clean energy such as wind and solar appear to be less popular.
Coal energy plays a significant role in the Asia-Pacific region, and was the only source to match hydroelectricity in terms of usage. This can be largely attributed to China, which is currently the world’s largest consumer of coal.
Researchers from the University of Cambridge noted that they weren’t surprised by these findings, as the Chinese government’s strategy to ensure energy self-sufficiency has led to an oversupply of both hydroelectric and coal power plants.
Towards a Greener Crypto Future
As cryptocurrencies move further into the mainstream, it’s likely that governments and other regulators will turn their attention to the industry’s carbon footprint. This isn’t necessarily a bad thing, however.
Mike Colyer, CEO of Foundry, a blockchain financing provider, believes that cryptomining can support the global transition to renewable energy. More specifically, he believes that clustering cryptomining facilities near renewable energy projects can mitigate a common issue: an oversupply of electricity.
“It allows for a faster payback on solar projects or wind projects… because they would [otherwise] produce too much energy for the grid in that area”
– Mike Colyer, CEO, Foundry
This type of thinking appears to be taking hold in China as well. In April 2020, Ya’an, a city located in China’s Sichuan province, issued a public guidance encouraging blockchain firms to take advantage of its excess hydroelectricity.
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