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Questions tagged [electric-vehicles]

automotives that use one or more electric motors for propulsion, including cars, trucks, buses, bikes and more. Consider this tag for questions regarding EV designs, technologies, fuel types and performance/efficiency comparisons. Also consider [cars], [batteries], [transport] or [electricity], depending on your question.

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Why are EVs tagged as green when they consume so much?

There's a lot of greenwashing when it comes to electric vehicles, no doubt. One major point I noticed that seems to slip through the cracks is that they don't need to be as fast as they are. The ...
yarns's user avatar
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2 votes
0 answers
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How many miles per year is too few to make an EV more sustainable than a small petrol car

I need a car for occasional short journeys. My yearly millage will probably be less than 2000 miles. Is it worth getting an EV or will a small petrol be more environmental. I’ll be buying used, ...
Will's user avatar
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1 vote
2 answers
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For Electric vehicles, HOW are miles per gallon equivalent (or L/100 Km) calculated, accounting for different sources of energy in the grid?

Could someone giver a clear and authoritative answer on HOW miles per gallon equivalent (or L/100 Km) are calculated for Battery electric Vehicles like Tesla Model 3 AWD long range? On the Electric ...
Sanjay Biswas's user avatar
3 votes
2 answers
165 views

Why are EV batteries so much cheaper than household batteries from a per kWh basis?

If anything - shouldn't the EV battery have more requirements and be more expensive? It needs to be lighter as that affects efficiency It needs to have safety aspects like not blowing up in a crash A ...
dizzy's user avatar
  • 280
1 vote
2 answers
79 views

Are there any Type2-charged non-car vehicles?

To support my idea of Sustainable Living, I'd like to reuse costs spent by my family of purchasing high-end Type2 charger by using it not just to charge up our EV car. Are there any battery-powered ...
trejder's user avatar
  • 135
3 votes
1 answer
80 views

Are there any distinct situations that an EV is not a good fit for?

With the new U.S. tax regulations supporting purchase of electric vehicles (EVs), there will be many new first-time EV owners in the near future. What are considerations for someone planning to buy ...
4dcndn's user avatar
  • 293
1 vote
1 answer
40 views

Is it safe to use EV de-charging cables?

My friend told me that an EV is a huge self-driving powerbank and that with proper cable I can charge my mobile phone, make a barbeque or work on my laptop outdoor. After quite intensively searching ...
trejder's user avatar
  • 135
1 vote
4 answers
329 views

Are EVs actually worse for ambient air quality than cars with combustion engines?

Most air pollution comes not from exhaust fumes but from wear and tear of tyres (it's 1000 times worse, some say). EVs are heavier because of their batteries and therefore release those tyre particles ...
Sergey Zolotarev's user avatar
0 votes
1 answer
1k views

A converter from CHAdeMO cable to CCS connector for charging EV cars

A very similar question to this one. Is there any solution available to use CHAdeMO charging cable to power EV car equipped with CCS socket? My knowledge gained so far says that there isn't anything ...
trejder's user avatar
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1 vote
1 answer
112 views

CHAdeMO to Type 2 connector for charging EV cars

I'd like to refresh and potentially update my knowledge. Is there anything like CHAdeMO charging cable to Type 2 car plug connector? or any other solution that would allow me to charge my Type 2 car ...
trejder's user avatar
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4 votes
1 answer
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Which alternative fuels are practical for cars in Europe? Is there a map of stations?

I am looking for viable options to allow sustainable personal transportation in Europe. For the sake of this question, let us ignore the question of emissions / LCA. The question is the practicality ...
Ixxie's user avatar
  • 141
3 votes
1 answer
132 views

Does battery state-of-charge affect regenerative braking in electric vehicles?

Most battery-electric vehicles support regenerative braking, where energy is sent back into the battery. Does the battery state-of-charge (percentage charged) affect how much energy is recovered in ...
Nic's user avatar
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4 votes
2 answers
103 views

What is the potential for a used car market for EVs?

In the 1970s, my dad bought a new Mazda sports car on a payment plan. About a year later he happened to see what the same model was selling for, and realized that he still owed more money than the car ...
LShaver's user avatar
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4 votes
1 answer
72 views

How should EV drivers prepare for winter driving?

On Monday night, a snowstorm in Virginia stranded drivers for up to 48 hours on Interstate 95. An op-ed this morning in the Washington Post argued that it would have been much worse if all the cars ...
LShaver's user avatar
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1 vote
2 answers
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What is the difference between a hybrid vehicle and a plug-in hybrid vehicle?

What is the difference between a hybrid vehicle and a plug-in hybrid vehicle? And why are plug-in hybrid vehicles better than regular hybrid vehicles, even as good as EVs?
Sergey Zolotarev's user avatar
3 votes
2 answers
189 views

Why are heat pumps said to be more expensive than AC?

I'm interested in electric cars and a specific model I'm interested is not equipped with a heat pump.... but does have AC. The discussion across the internet usually cites cost as a reason they did ...
Eric G's user avatar
  • 141
4 votes
1 answer
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Is it more ecological to take a diesel ferry or drive an EV the longer route?

I'm trying to figure out my daily dilemma: whether it's less polluting to take a diesel ferry that hops me over the river (roughly 160 m) or to drive my electric vehicle (EV) on a 15 km detour to take ...
adamsfamily's user avatar
5 votes
3 answers
165 views

Electricity need to switch all cars from fossil fuel

For purely hypothetical discussion, I was asking myself how big electrical production increase would be needed for a first-world country when switching all cars from fossil fuel to EV only. I made the ...
lucamauri's user avatar
3 votes
1 answer
146 views

Do solar PV roofs make sense for semi trucks?

Today I read the news that Tesla is about to start production of electric semi trucks (aka tractor-trailers). Given the size of the trailer and its long, flat roof, I wonder if it would be feasible to ...
LShaver's user avatar
  • 11.9k
2 votes
1 answer
68 views

Is there a total cost of ownership calculator for cars that will give me electric vehicle options?

I recently replaced a 20-year-old ICE vehicle in need of significant repairs with a five-year-old ICE vehicle. We had hoped that we could buy an EV this time around, but models that meet our needs are ...
LShaver's user avatar
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1 vote
0 answers
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Which countries, regions, or cities have zero emission vehicle mandates? [duplicate]

Today the governor of the U.S. state of Massachusetts announced that starting in 2035, gasoline-powered vehicles will no longer be sold in the state. From the announcement (emphasis added, and a "...
LShaver's user avatar
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11 votes
2 answers
3k views

How exactly do the impacts of lithium mining compare to oil extraction over a vehicle's lifetime?

There's been a lot of discussion about the impacts of lithium mining vs oil extraction (here for example). I'd like to quantify this. How do the impacts of mining lithium for one electric vehicle (EV) ...
LShaver's user avatar
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1 vote
3 answers
347 views

Why do most car manufacturers prefer electric batteries over hydrogen fuel cells?

Is this due to cost, or infrastructure, or path dependency, or incentives? I understand that batteries are more efficient (1) - but this does not take into account the quantity of rare materials ...
sba222's user avatar
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2 votes
1 answer
71 views

Are a significant portion of electric vehicle batteries reused as grid-connected batteries?

I've heard lots of people mention that concerns about the sustainability of electric vehicles are mitigated when you consider that at end-of-life the batteries can be reused as stationary, grid ...
LShaver's user avatar
  • 11.9k
5 votes
2 answers
199 views

How much weight would a wireless charging system add to an electric bus?

Wireless charging requires a number of 'receiving charging pad's and a 'management module' and I imagine there will be additional wiring. How much extra weight does this add to an electric bus?
atreeon's user avatar
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5 votes
1 answer
99 views

Any electric vehicle that can be used as a home energy storage?

I have a house with a solar array on top currently tied to the grid. I would love to be able to use an EV as a battery for my house, and after it charges up in the day be nice to use it for the ...
ronak's user avatar
  • 153
4 votes
1 answer
148 views

Which car is more sustainable, an all-electric Tesla Model 3 or a gas-powered Prius?

The Toyota Prius is available as a plug-in model, but I have a Prius that is only gas-powered, that is gas is the only fuel. I am wondering if the mpgE of the Tesla, 141, is so much better than the ...
Jerry McIntire's user avatar
6 votes
2 answers
215 views

Are trains more sustainable than electric buses?

I assume the energy for electric buses and trains comes from the same sources. But a train doesn't need to carry it's power supply along, contrary to a bus. However, there is more infrastructure that ...
usernumber's user avatar
8 votes
2 answers
301 views

How much of a reduction of carbon emissions can be achieved if a diesel bus is switched out for electric?

My city council has pledged to try and be carbon neutral by 2030 as part of the Global Covenant of Mayors and are investigating ways to achieve that. I'd like to bring forth an idea to replace our ...
Robotnik's user avatar
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5 votes
1 answer
690 views

Is charging Tesla Model 3 at 110v/15amp less energy efficient than at 220v/30amp?

I have a rudimentary understanding of volts and amps. (Volts is like pressure and Amps are like the bandwidth of that pressure.) So just reasoning about it, I imagine charging to be an event where the ...
pdobb's user avatar
  • 191
7 votes
4 answers
131 views

What is the effect of hot weather on the performance of electric vehicles?

Allied to the question: How does cold weather affect electric vehicles? How does hot weather affect electric vehicles, particularly when the atmospheric temperature is above 30 C and closer to 40 C,...
Fred's user avatar
  • 3,507
6 votes
4 answers
289 views

How does cold weather affect electric vehicles?

I live in Madison, Wisconsin, US where our winters are cold -- for January and February, the average low is around -10C, with extremes regularly dipping below -20C. I currently have a 20-year old car....
LShaver's user avatar
  • 11.9k
3 votes
1 answer
114 views

Are solar powered cars sustainable and are they a good idea for future transportation?

As population rises, fossil fuels will start depleting so are solar powered cars a good idea? How much power can they produce when it is cloudy?
Atticus Denewmont's user avatar
0 votes
0 answers
31 views

How sustainable is replacing a gas car with an electric car, since gas car still exists? [duplicate]

I drive a 2010 BMW 535i maybe 100 km/week, mostly urban driving. My wife also has a gasoline car which we can use for longer trips. I want to reduce our greenhouse gas emissions by buying an electric ...
Eric O's user avatar
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2 votes
2 answers
97 views

Electric cars and grid power capacity

The UK has a target to be carbon-neutral by 2050: As we can see in the image large cuts across all type of CO2 emissions are required. This article by the BBC suggests a number of ways in which ...
Steve Smith's user avatar
3 votes
4 answers
11k views

Method of transport with decent speed/low cost without a driving license?

I'm looking for something a little bit better than your average bike in terms of transportation potential, but cannot be a license-required vehicle as I cannot get a driver's license. I also don't ...
Buddy Fup's user avatar
5 votes
1 answer
299 views

Is electricity used at night more likely to be renewable?

Discussing charging my electric car with a colleague recently I argued that since (in Ireland) our renewable energy sources are mainly wind and hydro, since I charge my car at night the mixture of ...
Jacxel's user avatar
  • 153
2 votes
2 answers
111 views

Are there any active vehicle to grid programs around the world that are accepting customers?

It seems like people have been hyping the benefits of vehicle-to-grid (V2G) for decades. The basic premise of V2G is that electric vehicles, when plugged in to the grid to charge, can offer services ...
LShaver's user avatar
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12 votes
6 answers
454 views

To what extent (if any) are electric vehicle batteries recyclable?

Are there any existing procedures for the recycling of electric vehicle car batteries, and if so what are they? In particular I'm interested in those used in the Volkswagen E-Golf, though general ...
Sarah's user avatar
  • 121
4 votes
3 answers
211 views

New electric vehicle: does the cost outweigh the benefits?

Since it's summer break and I can no longer walk everywhere like I could at university, I've been having to drive my car a lot. For a 2001 model, it gets excellent gas mileage (or so I assume, I've ...
NeurologicalApex's user avatar
5 votes
1 answer
250 views

Is an electric vehicle more sustainable just because it runs on batteries? [duplicate]

So, is driving an EV (like the Tesla Model S) actually sustainable? Does it not matter how the actual power/energy was created? Does this matter?
unknownprotocol's user avatar
7 votes
2 answers
2k views

Are electric cars more efficient than gas-powered car (when considering entire energy cycle)? [duplicate]

For the last couple weeks, I've been hearing a lot of talk surrounding Tesla and "the electric car". What I'm curious of is whether or not it is more efficient to actually power an electric car (the ...
Throsby's user avatar
  • 171
17 votes
12 answers
34k views

What are the pros and cons of electric motors vs. internal combustion engines?

What are the pros and cons of electric motors, compared to internal combustion engines, from a sustainability perspective? Are electric motors better for the economy, more efficient, or more ...
user avatar
35 votes
3 answers
4k views

Are electric cars as environmentally friendly as we think they are?

Given the fact that the average lifetime for a car battery is 3 years and all of the batteries end up at a landfill at the end of their lifetime, how sustainable are electric cars in providing a ...
ZZZ's user avatar
  • 701