Jenn Lumpkin wrote:
And the other thing about electric vehicles, as opposed to gas-powered, would be "how to charge them," on long trips, since charging batteries takes TIME; you can't just stop off at the electricity station, as we now stop at gas stations, and take off again after a few minutes of fueling up. We've had a Volt since 2013; charging is NOT convenient; thank goodness for Volt's capacity to use either/or gas or electric, because if you want to travel very far, the electric charge runs out and you're not going anywhere unless you shift to gas. I love our Volt though! In the past when we went on long trips, we just ran on gas except for the beginning few miles and after we arrived at some relative's house and could plug in with their electric, while the time spent charging was while we were sitting around at their house (or went somewhere in THEIR car).
Jenn Lumpkin wrote:
If there was a good bus system where people could travel conveniently on a form of mass transit that doesn't use a lot of gas for the un-usual loong trips they might want to take, that might work. Except for the peculiar possibility of another pandemic such as our most recent one, where you just don't want to be in an enclosed space with others and have to rely on such things as masks which don't really work from what I've read.
from french motorail that seemed a bit vague, I'm not convinced that figure isn't being taken out of context. I found another source https://www.researchgate.net/publication/326633309_Study_of_the_Efficiency_of_Passengers'_Motorcar_Carriage_by_Using_Multicriteria_Methods which unfortunately had a complex model taking other factors like time and convenience into account which concluded that motorail was better, but the details were a bit opaque for me to be completely convinced! I'm a bit surprised the answer isn't clearer. Obviously it still does depend on a lot of other factors, but you'd have thought someone would be doing some joined up thinking.
Figures show that driving releases 117.7g of carbon per person per kilometre, in comparison with travelling by train, which releases just 5.7g of carbon per person per kilometre.
Yes, I doth exaggerate - every thing man makes deteriorates eventually - the Pyramids of Giza are a little shabbier than they were 4600 years ago. However, there is too much "if it lasts 50 years that's wonderful" attitude and I was trying to imply that we need to stretch that a lot if we're going to cool Planet Earth down a little while still enjoying the benefits of power beyond human and horse. Even bicycling, which is more efficient than cars, generates a fair bit of rubber, has embodied energy in the metal in the bike, and increasingly, has batteries with a relatively short lifespan likely measure in years rather than decades let alone longer.
Jenn Lumpkin wrote:What would be an " infinitely cyclable electricity storage system," Jay?
Jenn Lumpkin wrote:Hi Nancy Reading! And charging and recharging batteries means wear and tear on the batteries, I THINK. Like for instance, Eneloop batteries are good for 1800 charges (or whatever it's up to now), after that they're worthless ... right? So to un-charge and re-charge your vehicle's batteries is going to wear out the batteries faster, and your vehicle will lose value depending on how good its batteries are, ... is that right?
craig howard wrote:The problem with renewable energy is it destabilizes the grid.
Jay Angler wrote:Car batteries need to be sufficiently light and efficient to be used in a mobile asset. However, they have a limited number of charge/discharge cycles before their efficiency decreases to the point they're useless.
Sooo.... using your car batteries as a back up to the electrical grid is in the opinion of Hubby (electrical engineer by training), a bad idea for the battery owner. Emergency, or certain niche uses excepted.
Jenn Lumpkin wrote:
Our Volt's batteries are declined somewhat but we don't drive much, but yeah, those batteries are good. The lithium batteries for the electric lawnmower I'd mentioned earlier, however, died. Suddenly. I was actually mowing up leaves when the battery ran out, I went to recharge it, and it wouldn't recharge.
If you look at the link on Amazon (which I'm not sure I should post since I'm extremely critical of this lawnmower at this point), check out the one-star reviews; multiple people have had the same problem. In fact, I've checked several battery-operated lawnmowers and NOW I ALWAYS check the one-star reviews ... particularly about what they're saying about the batteries.
Hubby bought some backup batteries for an electric chainsaw from an after-market producer. He knew as soon as they arrived and he felt the weight that they were junk. Less than half the weight of the Name brand and not worth even the low price he paid. Definitely not what was advertised.
That is not to say that the tech is inherently bad, but if you make a battery from cheap junk your end product will be cheap junk.