Re:Lime and Bird are growing rapidly
by Relys on Monday December 03, 2018 @07:13PM
(#18594575)
Yes, because in the long term electric vehicles consolidate fossil fuel emissions to a single large point (coal in this case) which can be eventually replaced with a clean energy source (i.e. solar, wind, hydro, nuclear, etc.).
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Also coal powerplants run much more efficiently than a car engine.
Re:Lime and Bird are growing rapidly
by christophclarke on Monday December 03, 2018 @08:20PM
(#18594968)
Internal combustion engines operate at about 25% efficiency (per this paper, page 54)
https://deepblue.lib.umich.edu/bitstream/handle/2027.42/5764...
Coal power plants operate in the range of 34% efficiency
Re:Lime and Bird are growing rapidly
by Rebelgecko on Monday December 03, 2018 @08:35PM
(#18595081)
I wonder how much of that gets offset by transmission loss and the scooter's charging/discharging inefficiencies?
Not that that would be a reason not to use scooters in and off itself, since they're be posed to take advantage of grids that will hopefully become more and more renewable over time
Also they tend to be run very far away so you aren't getting a blast of pollution to the face every time you go outside
Is there a statistical report on this? I'm not contesting your claim, I'm just curious to see _how_ much more efficient.
Additionally, the emissions of that consolidated power plant can be better filtered (eg particulates) than the corresponding thousands of disparate engines.
Re:Lime and Bird are growing rapidly
by solarkraft on Monday December 03, 2018 @07:49PM
(#18594791)
It's also not directly in the city.
This is a big one. I live in Lehi, UT, in a place we call "Utah Valley." It's a bowl surrounded by mountains. When there's an inversion or when there's no storm to blow out the pollution, it sometimes reaches the top of the "worst air quality regions" scale. Moving the pollution to an area outside the bowl is a huge deal for me.
Plus transporting about 80kg of human, scooter and baggage is much less weight than human, car and baggage.
It would be interesting to calculate the MPG of these, including the overnight recharging and repositioning done inside a van.
What is the injury rate, compared to cars?
Scooters cause far fewer injuries than cars do