BCSnob
Middletown, MD
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Which is an easier problem to address?
Reducing the emissions on 200-300 million mobile sources of green house gasses
Reducing the emissions on 15-20 thousand stationary sources of green house gasses
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time2roll
Southern California
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There is also a strong correlation between EV drivers and home solar.
Ask yourself if you are a doer or a complainer.
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JRscooby
Indepmo
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I was involved in moving a portable crusher a few times. Their powerplant used the same engine as I had in my truck. (3406E) When I noticed the small fuel tank, I asked how often they had to fill it in a shift. "If we run over 12 hrs, we add fuel to be safe". Working my truck, 6 hrs would be the safe point. Running only at most efficient speed, instead of working with changing road speed must make a difference
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Cummins12V98
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Lwiddis wrote:It’s a beginning. Seventy miles and no where to go but up. Thanks for posting.
But WHY???
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larry cad
ohio
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BCSnob wrote:larry cad wrote:Just remember, the electricity being used for charging more and more, and faster and faster, is being generated by coal and fossil fuels, thus the more EV on the road, the more pollution in the atmosphere. Aren't these wonderful times?
Some light reading for you from the U.S. Energy Information Administration.
Sources of U.S. electricity generation, 2020
Yep, I was about right.
"Fossil fuels are the largest sources of energy for electricity generation
Natural gas was the largest source—about 40%—of U.S. electricity generation in 2020. Natural gas is used in steam turbines and gas turbines to generate electricity.
Coal was the third-largest energy source for U.S. electricity generation in 2020—about 19%. Nearly all coal-fired power plants use steam turbines. A few coal-fired power plants convert coal to a gas for use in a gas turbine to generate electricity.
Petroleum was the source of less than 1% of U.S. electricity generation in 2020. Residual fuel oil and petroleum coke are used in steam turbines. Distillate—or diesel—fuel oil is used in diesel-engine generators. Residual fuel oil and distillates can also be burned in gas turbines."
Point was, in order to have pollution free EV cars requires pollution generating electric power, and more and more and more pollution as there are more and more EV. I'm trying to think of a good analogy that others could understand. Something like "throw out the baby with the bath water", or "chop off your nose to spite your face".
I'm sure others can do better.
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BCSnob
Middletown, MD
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ICE emissions/mile are 100% fossil fuel, by your summation above EV emissions/mile are ~80% fossil fuel. That sounds like a reduction in emissions per mile.
Here is some more reading. Start with this news article then go read the original research.
Analysis: When do electric vehicles become cleaner than gasoline cars?
Quote:It takes a typical electric vehicle about one year in operation to achieve "carbon parity" with a gasoline vehicle. Although the production of EVs and batteries generates more CO2 before the first wheel turns, the total carbon "footprint" of gas cars quickly overtakes that of EVs after 15,000 miles of driving. If the EV draws electricity from a coal-fired grid, however, the catchup period stretches to more than five years. If the grid is powered by carbon-free hydroelectricity, the catchup period is about six months.
The question you should be asking is if the cradle to grave emissions per mile of an ice is more or less than the cradle to grave emissions per mile for the generation of the charge by a with the current mix of electrical generation.
Second question, which ice puts fuel (and emissions) back in the tank while breaking and coasting down hill?
* This post was
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edited 01/31/22 06:19pm by BCSnob *
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lbrjet
Gold Canyon, AZ
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BCSnob wrote:ICE emissions/mile are 100% fossil fuel, by your summation above EV emissions/mile are ~80% fossil fuel. That sounds like a reduction in emissions per mile.
Here is some more reading. Start with this news article then go read the original research.
Analysis: When do electric vehicles become cleaner than gasoline cars?
Quote:It takes a typical electric vehicle about one year in operation to achieve "carbon parity" with a gasoline vehicle. Although the production of EVs and batteries generates more CO2 before the first wheel turns, the total carbon "footprint" of gas cars quickly overtakes that of EVs after 15,000 miles of driving. If the EV draws electricity from a coal-fired grid, however, the catchup period stretches to more than five years. If the grid is powered by carbon-free hydroelectricity, the catchup period is about six months.
The question you should be asking is if the cradle to grave emissions per mile of an ice is more or less than the cradle to grave emissions per mile for the generation of the charge by a with the current mix of electrical generation.
Second question, which ice puts fuel (and emissions) back in the tank while breaking and coasting down hill?
"... with a 54 kilowatt-hour (kWh) battery and a cathode made of nickel, cobalt and aluminum, among other variables."
Don't know much about Tesla batteries but don't they have Lithium in them?
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FishOnOne
The Great State of Texas
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BCSnob wrote:
The question you should be asking is if the cradle to grave emissions per mile of an ice is more or less than the cradle to grave emissions per mile for the generation of the charge by a with the current mix of electrical generation.
To add: How long does the lithium ion batteries last and what's there deteriation rate? How much energy is required to recycle them? Also the damaging effects for mining rare earth metals and the production of lithium vs drilling a hole in the ground and pumping crude into a pipeline to a refinery including natural gas.
BCSnob wrote:
Second question, which ice puts fuel (and emissions) back in the tank while breaking and coasting down hill?
One that's backed by a electric motor... It's called a hybrid.
* This post was
edited 01/31/22 07:20pm by FishOnOne *
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BCSnob
Middletown, MD
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That hybrid has the same lithium batteries as an EV. EVs have lower emissions than hybrids (see wheel to wheel emissions tool).
I am amazed by the extent of the “can’t do” attitudes in Americans posting here. Good thing engineers, chemist, and manufacturers still have a “can do” attitude.
* This post was
edited 01/31/22 07:25pm by BCSnob *
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BCSnob
Middletown, MD
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lbrjet wrote:BCSnob wrote:ICE emissions/mile are 100% fossil fuel, by your summation above EV emissions/mile are ~80% fossil fuel. That sounds like a reduction in emissions per mile.
Here is some more reading. Start with this news article then go read the original research.
Analysis: When do electric vehicles become cleaner than gasoline cars?
Quote:It takes a typical electric vehicle about one year in operation to achieve "carbon parity" with a gasoline vehicle. Although the production of EVs and batteries generates more CO2 before the first wheel turns, the total carbon "footprint" of gas cars quickly overtakes that of EVs after 15,000 miles of driving. If the EV draws electricity from a coal-fired grid, however, the catchup period stretches to more than five years. If the grid is powered by carbon-free hydroelectricity, the catchup period is about six months.
The question you should be asking is if the cradle to grave emissions per mile of an ice is more or less than the cradle to grave emissions per mile for the generation of the charge by a with the current mix of electrical generation.
Second question, which ice puts fuel (and emissions) back in the tank while breaking and coasting down hill?
"... with a 54 kilowatt-hour (kWh) battery and a cathode made of nickel, cobalt and aluminum, among other variables."
Don't know much about Tesla batteries but don't they have Lithium in them?
Did you notice that the “among other variables” was a link and at the linked page it lists the variables plugged into the GREET model? These included:
Quote:EV battery type: Lithium-ion
EV battery size: 54 kilowatt-hours (kWh)
EV battery cathode material: nickel-cobalt-aluminium (NCA)
* This post was
edited 01/31/22 07:32pm by BCSnob *
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