4 ms·

no offense, but it seems like you don't know how tension and current intensity relate to each other. Tension (100V) is like the pressure you get at your water t

no offense, but it seems like you don't know how tension and current intensity relate to each other. Tension (100V) is like the pressure you get at your water tap: it can be high or low. Current Intensity is how much water it's flowing through your tap. The same amount of water (say 100 liters per minute) can flow from a high pressure tap that is only opened a little bit, or from a low pressure tap opened all the way. Just because the car charges at 110V, it does not mean it consumes only as much as a bulb. In order to charge overnight, an EV will need to draw 1000s of times more current than a bulb. Multiply that by all the houses in a city, and you start having issues.

bryanlarsen 5y ago
An average car needs about 5 kWh of electricity daily. That's 24 hours of two incandescent light bulbs. And it's needed overnight when the grid is almost idle.
- flavius29663 5y ago
  average daily distance is 40 miles. Average consumption is 0.346kWh per mile. That is 13 KWh per day. I was talking about overnight only, because you definitely don't want everyone to charge their EVs during peak hours, so that is around 10 hours, you need about 1.3 KW constantly during that time. BTW, why did you mention duration of 24Hours, but then said it's only needed overnight? If you have 2 EVs per family, that is 2.6 KW. It takes us to 26 large incandescent lightbulbs (I can't barely find 100W anymore) or 260 LED bulbs. This all assumes that the EV plays nice with the grid and only charges at the minimum draw, rather than as fast as it safely can. If a Tesla charges at 48AMPs, that (5KW) is going to be MUCH larger than a lightbulb). It's not as simple as: one light bulb is the same as one EV...I agree it's not an insurmountable problem, I don't even think it's the biggest problem with EVs(batteries are), but you can't just handwave it away.
  - jjtheblunt 5y ago
    > I dont' even think it's the biggest problem with EVs(batteries are) agreed, and this has been a great conversation. It makes me realize, i wonder if there's big money to be made by pushing the narrative that "the grid" can't handle EVs, since for average distance trips the grid impact for our ev really has been on the order of an incandescent or two running through the night, and we align with your average stats.
jjtheblunt 5y ago
none taken; i know exactly what you mean, and thanks for being clear anyway (not joking). i just mean to emphasize that the draw on the grid is comparable to an incandescent lamp running, for most EVs daily recharge needs.

bryanlarsen 5y ago

An average car needs about 5 kWh of electricity daily. That's 24 hours of two incandescent light bulbs. And it's needed overnight when the grid is almost idle.

flavius29663 5y ago
average daily distance is 40 miles. Average consumption is 0.346kWh per mile. That is 13 KWh per day. I was talking about overnight only, because you definitely don't want everyone to charge their EVs during peak hours, so that is around 10 hours, you need about 1.3 KW constantly during that time. BTW, why did you mention duration of 24Hours, but then said it's only needed overnight? If you have 2 EVs per family, that is 2.6 KW. It takes us to 26 large incandescent lightbulbs (I can't barely find 100W anymore) or 260 LED bulbs. This all assumes that the EV plays nice with the grid and only charges at the minimum draw, rather than as fast as it safely can. If a Tesla charges at 48AMPs, that (5KW) is going to be MUCH larger than a lightbulb). It's not as simple as: one light bulb is the same as one EV...I agree it's not an insurmountable problem, I don't even think it's the biggest problem with EVs(batteries are), but you can't just handwave it away.
- jjtheblunt 5y ago
  > I dont' even think it's the biggest problem with EVs(batteries are) agreed, and this has been a great conversation. It makes me realize, i wonder if there's big money to be made by pushing the narrative that "the grid" can't handle EVs, since for average distance trips the grid impact for our ev really has been on the order of an incandescent or two running through the night, and we align with your average stats.

jjtheblunt 5y ago

none taken; i know exactly what you mean, and thanks for being clear anyway (not joking). i just mean to emphasize that the draw on the grid is comparable to an incandescent lamp running, for most EVs daily recharge needs.