Compared with gas-driven cars, battery-driven electric cars currently face practical limits on their utility.
No 2455 Posted by fw, April 4, 2019
“… the dream of switching from petroleum-powered vehicles to a new generation of electric alternatives powered entirely by renewables is just that: a fantasy that will never be realized in practice. The reason for this is not electric cars themselves, but the limitations of the state of the art batteries that power them. Lithium-ion batteries are a poor substitute for one of nature’s more energy-dense “batteries” – petrol/gasoline; a by-product of the oil refining business. Petrol is a light fuel that is useful for transporting small numbers of people or relatively light goods over long distances. It is, however, a poor fuel for moving large numbers of people, heavy loads or raw resources. To carry out those tasks, an even denser “battery” is required – diesel fuel. Diesel is the lifeblood of the civilisation that we live in and depend upon. … The key question before us, then, is NOT how do we operate diesel-powered trucks (and tractors, trains, ships, cranes and planes) using only batteries and wind turbines? The question that we have to answer is what would be a viable non-carbon emitting alternative to diesel fuel? At present there isn’t one. And as a result, the only choice before us is to begin the unpleasant task of dismantling the highly exploitative and consumptive civilisation that we have built in the years since the industrial revolution. Because if we cannot find an alternative means of powering the heavy lifting that our civilisation depends upon, collapse is inevitable anyway.” —Tim Watkins, The Consciousness of Sheep
There you have it – neatly packaged in the above excerpt, the thesis of Tim Watkins’ recent article.
On March 7, 2019, I posted another article by Tim which I titled: The Green Deal Movement is hopium, based on a naïve belief we can overcome planetary overshoot . In that alarming account, Tim examined in detail the foreboding dilemma humanity faces in trying to prevent planetary collapse — To avert collapse, resulting in the deaths of more than six in every seven humans on Earth, every person on the planet would have to immediately stop using fossil fuels. However, if we stop using fossil fuels that supply 85% of Earth’s power, our oil-dependent economy will collapse, causing a global famine that will kill more than six in every seven humans worldwide.
In this piece, reposted below, Tim unravels more “hopium” – “… the dream of switching from petroleum-powered vehicles to a new generation of electric alternatives powered entirely by renewables – [another] fantasy that will never be realised in practice.”
Tim Watkins is a British social and economic scientist with a background in public policy research. Tim’s sole aim with his website is to raise awareness of the predicament of the “three Es” — Economy, Energy and Environment. He suggests that, with growing urgency, we build local, sustainable lifeboats while we still have time.
My abridged repost of Tim’s article, below, includes my added subheadings and highlighted text. Alternatively, read his complete account on his website by clicking on the following linked title.
Compared with gas-driven cars, battery-driven electric cars currently face practical limits on their utility
Electric cars – powered from on-board batteries – have been around since 1859. However, they were quickly eclipsed by internal combustion engine (ICE) cars which even then offered far greater speeds and ranges. The early electric cars drew their limited power from lead-acid batteries of the kind found in most ICE cars. And while improvements continued to be made to electric motors, it was battery storage that proved to be the limiting factor for electric cars. The development of modern lithium-ion batteries – coinciding with the global drive to curb greenhouse gas emissions – helped propel Elon Musk’s high performance (and once again massively subsidized from the public purse) Tesla electric cars to prominence. Following the release of the Roadster and the development of new longer range Tesla cars, we have seen several other companies including Nissan, Daimler and BMW bring electric cars to market. Nevertheless, for all the competition and technical input to electric car design, the weight to range ratio of lithium-ion batteries places practical limits on the utility of electric cars when compared to ICE cars. … modern lithium-ion batteries … are the very height of technological advancement, beyond which only fractional improvements can be made and only then at huge cost.
The dream of switching from gas-powered to electric alternatives is just that – a dream
All of which is merely another way of saying that the dream of switching from petroleum-powered vehicles to a new generation of electric alternatives powered entirely by renewables is just that: a fantasy that will never be realised in practice.
Batteries are a poor substitute for gasoline
The reason for this is not electric cars themselves, but the limitations of the state of the art batteries that power them. Lithium-ion batteries are a poor substitute for one of nature’s more energy-dense “batteries” – petrol/gasoline; a by-product of the oil refining business.
However, diesel fuel – and not gasoline – is better for heavy lifting
Petrol is a light fuel that is useful for transporting small numbers of people or relatively light goods over long distances. It is, however, a poor fuel for moving large numbers of people, heavy loads or raw resources. To carry out those tasks, an even denser “battery” is required – diesel fuel. Diesel is the lifeblood of the civilisation that we live in and depend upon. It powers, among other things, the mineral extraction, agriculture and transportation that provide us with the food we eat and the goods and services we consume. Without it we could not make, transport and deploy a single wind turbine or solar panel. Nor could we maintain the critical infrastructure – roads, railways, electricity grid, water and sewage system, food distribution, ports and airports – that allow more than 7.5 billion of us to continue to live on this planet.
Without diesel fuel only a fraction of UK’s domestic haulage would be economically feasible
According to the UK government, in 2016 the domestic haulage industry moved 1.89 billion tonnes of goods more than 19 billion kilometres. Without diesel fuel only a fraction of this movement would be theoretically possible (assuming some combination of a massive fleet of smaller petrol vehicles, a duplicate rail freight system and a flotilla of redundant ships together with spare port facilities were on hand). In practice, as UK government papers outlining the risks of a no-deal Brexit have made clear, if the trucks stop running the UK will very rapidly grind to a halt.
The Green Dream of replacing gas-driven cars with electric cars depends on a sleight of hand
This is the fundamental flaw in a bright green narrative that pretends that we can address the human impact crisis by deploying non-renewable renewable energy-harvesting technologies to replace fossil carbon in the generation of electricity and then swap out all of the internal combustion engines that we depend upon with new electric motors. We cannot. While states in Western Europe and North America have deployed masses of wind turbines and solar panels to (unevenly) generate up to a third of their electricity, this feat depends upon a huge amount of sleight of hand.
By offshoring energy consumption to less developed regions, our energy consumption shows up on their CO2 emissions
In the 1980s and 1990s much of the energy consumption of these developed states was offshored to less developed regions – for example, textiles from the Indian sub-continent; manufactured goods from Asia; minerals and food from Africa. The result is that most of our energy consumption shows up in their carbon emissions data (no wonder the developed states signed up to a deal that allowed them to continue burning fossil fuels).
On a global scale, renewables account for less than 3% of the world’s energy use mix (excluding wood and hydroelectric)
On a global scale and excluding wood burning and hydroelectric, non-renewable renewable energy-harvesting technologies account for less than three percent of our energy mix; not even enough to slow our growth in energy consumption. Indeed, had the global economy stopped growing in 2015, the oil, gas and coal that we would have saved would be greater than all of the electricity generated from non-renewable renewable energy-harvesting technologies.
Moreover, use of wind, solar and electric cars have not curbed emissions because fossil fuels are still needed
At this point many bright green aficionados will object that at least by deploying wind turbines, solar panels and electric cars they are doing something toward curbing greenhouse gas emissions. But they are not. It takes fossil fuels to manufacture, transport, deploy and maintain non-renewable renewable energy-harvesting technologies. As Jonathan Watts at the Guardian recently reported:
“Extractive industries are responsible for half of the world’s carbon emissions and more than 80% of biodiversity loss, according to the most comprehensive environmental tally undertaken of mining and farming.
“While this is crucial for food, fuel and minerals, the study by UN Environment warns the increasing material weight of the world’s economies is putting a more dangerous level of stress on the climate and natural life-support systems than previously thought.
“Resources are being extracted from the planet three times faster than in 1970, even though the population has only doubled in that time…
“Each year, the world consumes more than 92billion tonnes of materials – biomass (mostly food), metals, fossil fuels and minerals – and this figure is growing at the rate of 3.2% per year.”
Importantly, these figures exclude carbon emissions from vehicles:
“The biggest surprise to the authors was the huge climate impact of pulling materials out of the ground and preparing them for use. All the sectors combined together accounted for 53% of the world’s carbon emissions – even before accounting for any fuel that is burned.”
Even if swapping out of power plants and gas-driven cars was able to match economic growth at pre-2008 levels, the planet would be uninhabitable
Swapping existing power plants for non-renewable renewable energy-harvesting technologies, and swapping billions of ICE cars and small goods vehicles for new electric versions in some version of a “Green New Deal” on a scale that also delivers economic growth at pre-2008 levels requires at least a doubling of our current extraction of what remains of our planet’s depleted resources; something that more or less guarantees a climate akin to that enjoyed by the dinosaurs.
And there would still be no substitute for diesel fuel for heavy lifting
And even if it “succeeded” we would still depend upon diesel fuel for almost all of our heavy lifting simply because there is currently no substitute. Sure, there are a handful of small electric delivery vehicles. Cities around the world operate battery-powered buses and refuse collection vehicles. There are even a couple of wholly impractical prototypes of articulated (semi) trucks for which no appropriate battery technology currently exists. In an analysis of the claims made for long distance heavy trucks, Venkatasubramanian Viswanathan highlights the current limitations:
“The payload capacity of these vehicles, as stated before, is an important parameter for the trucking industry, and in a fully electric vehicle, the payload capacity would be reduced signiﬁcantly because the battery pack weight forms a signiﬁcant fraction of the GVW [Gross Vehicle Weight]…
“A key conclusion from this analysis is that, with current Li-ion batteries, we would have no meaningful payload capacity if we need a driving range of 900 miles since the battery pack and the vehicle weight together would account for nearly the entire GVW limit of 36,000 kg (40 tons).”
The battery needed for heavy lifting vehicles has not yet been invented
Thus we need some yet-to-be-invented battery technology that is far lighter and far more energy-dense than our leading edge batteries. Ideally we would need some kind of liquid energy storage medium. Perhaps one with an energy-density of around 35-40 megajoules per litre as opposed to the 2.5 megajoules (at best) per litre that we can squeeze out of a state of the art lithium-ion battery. Diminishing returns at this point in battery development mean that we are never going to achieve the advances in energy density that would bring us anywhere near to replacing diesel fuel. As Mark P. Mills recently pointed out:
“To be blunt: there is simply no possibility that more government funding for wind turbines, silicon solar cells or lithium batteries will lead to a ‘disruptive’ 10-fold gain. All those technologies are approaching physics limits…
“We know from history that revolutionary discoveries happen. We also know they come from basic research that unveils entirely new phenomenologies and not from deploying R&D funds to improve or subsidize yesterday’s technologies…”
The question we have to answer is: “What would be a viable non-carbon emitting alternative to diesel fuel?”
The key question before us, then, is NOT how do we operate diesel-powered trucks (and tractors, trains, ships, cranes and planes) using only batteries and wind turbines? The question that we have to answer is what would be a viable non-carbon emitting alternative to diesel fuel? At present there isn’t one.
Our only option: dismantle the highly exploitative and consumptive civilisation that we have built
And as a result, the only choice before us is to begin the unpleasant task of dismantling the highly exploitative and consumptive civilisation that we have built in the years since the industrial revolution.
And if we won’t or can’t do that, the collapse of civilization is inevitable
Because if we cannot find an alternative means of powering the heavy lifting that our civilisation depends upon, collapse is inevitable anyway.
Until you solve the diesel oil problem, you solve nothing!
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