You really shouldn't quote numbers like that, because they aren't true, or are at the least very misleading. Here is a long thread discussing the matter:jelloslug wrote:don't forget that it takes about 5 kw of electricity to refine 1 gallon of gas. And that's on top of all the power it takes to move the oil around before and after it's refined.
+1Goodtohave wrote:I am very self absorbed and couldn't be bothered to read the thread but judging by the title it seems everone here hates trees or something and wants them gone.
What will be left to hug?
Where will the Leafs grow from?
It's still theretimhebb wrote:Trees on the dash are pure fluff, of course.
BUT, didn't CARWINGS online used to offer some data on cumulative carbon emissions savings (based on "eco trees" units or some such squishy metric, unfortunately)?
It seemed to me that the CARWINGS info was potentially useful and sound if it could be translated into pounds of carbon dioxide NOT emitted by one's LEAF. But now, logging into the LEAF owners' portal and peeking around at the data available, I'm no longer seeing even "eco trees" information on my LEAF.
Am I missing something or has Nissan dropped the feature? I know there may still be some "eco trees" info on the CARWINGS LED screen in the car, but I thought there was more online.
Anyone following this who can enlighten/update me?
TomT wrote:If you want to have fun, coast along in neutral and then press and release the accelerator... You will see the tree-o-meter go from maximum scale to about 1/4 scale!
Actually, in the context where you would talk about how much energy it takes to produce gasoline the efficiency of the process and how much energy your end up with is irrelevant. The argument is that with an EV you are just shifting the pollution to the power plant. The rebuttal is that if you are going to talk about the process of making electricity then you need to put the process for making gasoline on the table too. Regardless of how efficient the refining process is you still have to use that energy to refine the oil and producing that energy is not emission free.planet4ever wrote:You really shouldn't quote numbers like that, because they aren't true, or are at the least very misleading. Here is a long thread discussing the matter:jelloslug wrote:don't forget that it takes about 5 kw of electricity to refine 1 gallon of gas. And that's on top of all the power it takes to move the oil around before and after it's refined.
7.5 kWh of electricity to produce a gallon of gasoline?
The conclusion reached there was that refining gasoline uses up the equivalent energy of 7.5 kWh. That's because the refining process is about 83% efficient. (i.e. about 17% of the energy available in the oil has been lost by the time it becomes gasoline.) I believe someone showed numbers indicating that actual use of electricity was about 1/3 kWh per gallon.
Look, I'm about as concerned about the climate effects of gasoline as the most extreme "lefties", but I don't think it helps our cause to play fast and free with statistics.
haha! True that. I just like the car due to it's efficiency and nice drive. I agree, I love real trees, not the dash tree, loose it. Gimme numbers.tjlyerly wrote:I realize that many Leaf owners have some inflated sense of importance that they are involved in some great environmental cause saving the world, but the vast majority of people (like myself) view that as bunk. The more the Leaf can divorce itself from this environmental mindset (symbolized by the Leaf and Tree icons) the more it will appeal to the vast majority of people who are more interested in reliable economic vehicle and not some overly subsidized environmental project that is doomed to failure.