Energy
Visualizing U.S. Energy Use in One Giant Chart
Visualizing U.S. Energy Use in One Giant Chart
If you feel like you’ve seen this diagram before, you probably have.
Every year, it’s assembled by the Lawrence Livermore National Laboratory, a research center founded by UC Berkeley and funded primarily by the U.S. Department of Energy.
The ambitious aim is to chart all U.S. energy use in one Sankey diagram, including the original energy source (i.e. nuclear, oil, wind, etc.) as well as the ultimate end use (i.e. residential, commercial, etc.) for the energy that was generated.
U.S. Energy Use in 2018
According to the research center’s most recent published version of the diagram, U.S. energy use totaled 101.2 quads in 2018.
In case you are wondering, a single quad is equal to 1 quadrillion BTUs, with each quad being roughly equivalent to 185 million barrels of crude oil, 8 billion gallons of gasoline, or 1 trillion cubic feet of natural gas.
Here is how the recent figure compares to previous years:
Year | U.S. Energy Consumption | % Fossil Fuels in Mix |
---|---|---|
2018 | 101.2 quads | 80.2% |
2017 | 97.7 quads | 80.0% |
2016 | 97.3 quads | 80.8% |
2015 | 97.2 quads | 81.6% |
2014 | 98.3 quads | 81.6% |
As you can see in the table, U.S. energy use has been generally increasing, eventually topping 100 quads per year by 2018. During this time, the total percentage of fossil fuels in the mix has dropped, but only from 81.6% to 80.2%.
Taking a closer look at the data, we can see that the largest percentage increases in the mix have come from solar and wind sources:
Source | 2014 | 2015 | 2016 | 2017 | 2018 | Change ('14-'18) |
---|---|---|---|---|---|---|
Solar | 0.427 | 0.426 | 0.587 | 0.775 | 0.949 | +122% |
Wind | 1.73 | 1.78 | 2.11 | 2.35 | 2.53 | +46% |
Energy use measured in quads (1 quadrillion BTUs)
Solar use has increased 122% since 2014, while wind jumped 46% over the same timeframe. Not surprisingly, energy derived from coal has fallen by 26%.
Dealing With the Rejects
One interesting thing about the diagram is that it also shows rejected energy, which represents the energy that actually gets wasted due to various inefficiencies. In fact, 68% of all energy generated is not harnessed for any productive use.
This makes sense, since gasoline engines are usually only about 20-40% efficient, and even electric engines are 85-90% efficient. Put another way, a certain percentage of energy is always released as heat, sound, light, or other forms that are hard for us to harness.
As electric cars rise in popularity and as modern gas-powered engines also get more efficient, there is hope that the amount of this rejected energy will decrease over time.
Energy
Ranked: Electric Vehicle Sales by Model in 2023
Today, electric vehicle sales make up 18% of global vehicle sales. Here are the leading models by sales as of August 2023.

Ranked: Electric Vehicle Sales by Model in 2023
Electric vehicle (EV) sales are gaining momentum, reaching 18% of global vehicle sales in 2023.
As new competitors bring more affordable options and new performance features, the market continues to mature as customers increasingly look to electric options.
This graphic ranks the top-selling EVs worldwide as of August 2023, based on data from CleanTechnica.
The Best Selling EVs in 2023 (Through August)
Below, we show the world’s best selling fully electric vehicles from January to August 2023:
Model | Country | Vehicles Sold (Jan-Aug 2023) |
---|---|---|
Tesla Model Y | 🇺🇸 U.S. | 772,364 |
Tesla Model 3 | 🇺🇸 U.S. | 364,403 |
BYD Atto 3 / Yuan Plus | 🇨🇳 China | 265,688 |
BYD Dolphin | 🇨🇳 China | 222,825 |
GAC Aion S | 🇨🇳 China | 160,693 |
Wuling HongGuang Mini EV | 🇨🇳 China | 153,399 |
GAC Aion Y | 🇨🇳 China | 136,619 |
VW ID.4 | 🇩🇪 Germany | 120,154 |
BYD Seagull | 🇨🇳 China | 95,202 |
As we can see, Tesla‘s Model Y still holds a comfortable lead over the competition with 772,364 units sold. That’s more than double the sales of the #2 top selling vehicle, Tesla’s Model 3 (364,403)
But it’s hard to ignore the rising prevalence of Chinese EVs. The next five best selling EV vehicles are Chinese, including three from BYD. The automaker’s Atto 3 (or Yuan Plus, depending on market), is being sold in various countries including Germany, the UK, Japan, and India.
Meanwhile, Chinese automaker GAC Group also had two models of its Aion EV brand make the rankings, with the Aion S selling 160,693 units so far.
Regional market strength is also clear. For Volkswagen’s ID.4 model (120,154 units sold), Europe and China account for the majority of sales.
Given growing cost efficiencies and changing consumer behavior, global EV sales are projected to make up half of new car sales globally by 2035, according to forecasts from Goldman Sachs.
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