The Inconvenient Truth About Electric Vehicles
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Posted On: 07/26/2017 10:48:58 AM
The Inconvenient Truth About Electric Vehicles
http://oilprice.com/Energy/Energy-General/The...icles.html
An electric automobile will convert 5-10 percent of the energy in natural gas into motion. A normal vehicle will convert 20-30 percent of the energy in gasoline into motion. That's 3 or 4 times more energy recovered with an internal combustion vehicle than an electric vehicle.
Electricity is a specialty product. It's not appropriate for transportation. It looks cheap at this time, but that's because it was designed for toasters, not transportation. Increase the amount of wiring and infrastructure by a factor of a thousand, and it's expensive.
Electricity does not scale up properly to the transportation industry due to its miniscule nature. Sure, a whole lot can be used for something, but at extraordinary expense.
Using electricity as an energy source requires two energy transformation steps, while using petroleum requires only one. With electricity, the original energy, usually chemical energy, must be transformed into electrical energy; and then the electrical energy is transformed into the kinetic energy of motion. With an internal combustion engine, the only transformation step is the conversion of chemical energy to kinetic energy in the combustion chamber.
The difference matters, because there is a lot of energy lost every time it is transformed or used. Electrical energy is harder to handle and loses more in its handling.
The use of electrical energy requires it to move into and out of the space medium (aether) through induction. Induction through the aether medium should be referred to as another form of energy, but physicists sandwich it into the category of electrical energy. Going into and out of the aether through induction loses a lot of energy.
Another problem with electricity is that it loses energy to heat production due to resistance in the wires. A short transmission line will have 20 percent loss built in, and a long line will have 50 percent loss built in. These losses are integrated because reducing the loss by half would require twice as much metal in the wires. Wires have to be optimized for diameter and strength, which means doubling the metal would be doubling the number of transmission lines.
High voltage transformers can achieve 90 percent efficiency with expensive designs, but household level voltages achieve only 50 percent efficiency. Electric motors can get up to 60 percent efficiency, but only at optimum rpms and load. For autos, they average 25 percent efficiency. Gasoline engines get 25 percent efficiency with old-style carburetors and 30 percent with fuel injection, though additional loses can occur.
Applying this brilliant engineering to the problem yields this result: A natural gas electric generating turbine gets 40 percent efficiency. A high voltage transformer gets 90 percent efficiency. A household level transformer gets 50 percent efficiency. A short transmission line gets 20 percent loss, which is 80 percent efficiency. The total is 40 percent x 90 percent x 50 percent x 80 percent = 14.4 percent of the energy recovered before the electrical system does something similar to the gasoline engine in the vehicle. Some say the electricity performs a little better in the vehicle, but it's not much.
Electricity appears to be easy to handle sending it through wires. But it is the small scale that makes it look cheap. Scaling it up takes a pound of metal for so many electron-miles. Twice as much distance means twice as much metal. Twice as many amps means twice as much metal. Converting the transportation system into an electrical based system would require scaling up the amount of metal and electrical infrastructure by factors of hundreds or thousands. Where are all those lines going to go? They destroy environments. Where is that much natural gas going to come from for the electrical generators? There is very little natural gas in existence when using it for a large-scale purpose. Natural gas must be used with solar and wind energy, because only it can be turned on and off easily for backup.
One of the overwhelming facts about electric transportation is the chicken and egg phenomenon. Supposedly, a lot of electric vehicles will create an incentive to create a lot of expensive infrastructure. There are a lot of reasons why none of the goals can be met for such an infrastructure. The basic problem is that electricity will never be appropriate for such demanding use as general transportation, which means there will never be enough chickens or eggs to balance the demand. It's like trying to improve a backpack to such an extent that it will replace a pickup truck. The limitations of muscle metabolism are like the limitations of electrical energy.
Electrons are not a space-saving form of energy. Electrons have to be surrounded by large amounts of metal. It means electric motors get heavy and large. When cruising around town, the problems are not so noticeable. But the challenges of ruggedness are met far easier with internal combustion engines. Engineers say it is nice to get rid of the drive train with electric vehicles. But in doing so, they add clutter elsewhere, which adds weight, takes up space and messes up the suspension system. Out on the highway, the suspension system is the most critical factor.
These problems will prevent electric vehicles from replacing petroleum vehicles for all but specialty purposes. The infrastructure needed for electric vehicles will never exist when limited to specialty purposes. This would be true even with the perfect battery which takes up no space and holds infinite charge.
http://oilprice.com/Energy/Energy-General/The...icles.html
An electric automobile will convert 5-10 percent of the energy in natural gas into motion. A normal vehicle will convert 20-30 percent of the energy in gasoline into motion. That's 3 or 4 times more energy recovered with an internal combustion vehicle than an electric vehicle.
Electricity is a specialty product. It's not appropriate for transportation. It looks cheap at this time, but that's because it was designed for toasters, not transportation. Increase the amount of wiring and infrastructure by a factor of a thousand, and it's expensive.
Electricity does not scale up properly to the transportation industry due to its miniscule nature. Sure, a whole lot can be used for something, but at extraordinary expense.
Using electricity as an energy source requires two energy transformation steps, while using petroleum requires only one. With electricity, the original energy, usually chemical energy, must be transformed into electrical energy; and then the electrical energy is transformed into the kinetic energy of motion. With an internal combustion engine, the only transformation step is the conversion of chemical energy to kinetic energy in the combustion chamber.
The difference matters, because there is a lot of energy lost every time it is transformed or used. Electrical energy is harder to handle and loses more in its handling.
The use of electrical energy requires it to move into and out of the space medium (aether) through induction. Induction through the aether medium should be referred to as another form of energy, but physicists sandwich it into the category of electrical energy. Going into and out of the aether through induction loses a lot of energy.
Another problem with electricity is that it loses energy to heat production due to resistance in the wires. A short transmission line will have 20 percent loss built in, and a long line will have 50 percent loss built in. These losses are integrated because reducing the loss by half would require twice as much metal in the wires. Wires have to be optimized for diameter and strength, which means doubling the metal would be doubling the number of transmission lines.
High voltage transformers can achieve 90 percent efficiency with expensive designs, but household level voltages achieve only 50 percent efficiency. Electric motors can get up to 60 percent efficiency, but only at optimum rpms and load. For autos, they average 25 percent efficiency. Gasoline engines get 25 percent efficiency with old-style carburetors and 30 percent with fuel injection, though additional loses can occur.
Applying this brilliant engineering to the problem yields this result: A natural gas electric generating turbine gets 40 percent efficiency. A high voltage transformer gets 90 percent efficiency. A household level transformer gets 50 percent efficiency. A short transmission line gets 20 percent loss, which is 80 percent efficiency. The total is 40 percent x 90 percent x 50 percent x 80 percent = 14.4 percent of the energy recovered before the electrical system does something similar to the gasoline engine in the vehicle. Some say the electricity performs a little better in the vehicle, but it's not much.
Electricity appears to be easy to handle sending it through wires. But it is the small scale that makes it look cheap. Scaling it up takes a pound of metal for so many electron-miles. Twice as much distance means twice as much metal. Twice as many amps means twice as much metal. Converting the transportation system into an electrical based system would require scaling up the amount of metal and electrical infrastructure by factors of hundreds or thousands. Where are all those lines going to go? They destroy environments. Where is that much natural gas going to come from for the electrical generators? There is very little natural gas in existence when using it for a large-scale purpose. Natural gas must be used with solar and wind energy, because only it can be turned on and off easily for backup.
One of the overwhelming facts about electric transportation is the chicken and egg phenomenon. Supposedly, a lot of electric vehicles will create an incentive to create a lot of expensive infrastructure. There are a lot of reasons why none of the goals can be met for such an infrastructure. The basic problem is that electricity will never be appropriate for such demanding use as general transportation, which means there will never be enough chickens or eggs to balance the demand. It's like trying to improve a backpack to such an extent that it will replace a pickup truck. The limitations of muscle metabolism are like the limitations of electrical energy.
Electrons are not a space-saving form of energy. Electrons have to be surrounded by large amounts of metal. It means electric motors get heavy and large. When cruising around town, the problems are not so noticeable. But the challenges of ruggedness are met far easier with internal combustion engines. Engineers say it is nice to get rid of the drive train with electric vehicles. But in doing so, they add clutter elsewhere, which adds weight, takes up space and messes up the suspension system. Out on the highway, the suspension system is the most critical factor.
These problems will prevent electric vehicles from replacing petroleum vehicles for all but specialty purposes. The infrastructure needed for electric vehicles will never exist when limited to specialty purposes. This would be true even with the perfect battery which takes up no space and holds infinite charge.
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