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re: where will we get the juice for all these EVs?

Posted on 6/13/21 at 9:26 pm to
Posted by udtiger
Over your left shoulder
Member since Nov 2006
99633 posts
Posted on 6/13/21 at 9:26 pm to
quote:

Granted, the air conditioner is still a load. But it’s not that much compared to actually powering the drivetrain




Radio on?
Windshield wipers?
Bluetooth?
Navigation?
Dashboard display?

All that PLUS A/C...

You'll have a line of fricking paperweights littering the highway.
Posted by antibarner
Member since Oct 2009
23794 posts
Posted on 6/13/21 at 9:30 pm to
How are you going to power heavy equipment? trains? ships? buses? trucks? aircraft? industrial generators?
This post was edited on 6/13/21 at 9:31 pm
Posted by JohnnyKilroy
Cajun Navy Vice Admiral
Member since Oct 2012
35652 posts
Posted on 6/13/21 at 9:36 pm to
quote:

Radio on?
Windshield wipers?
Bluetooth?
Navigation?
Dashboard display?


Those are all pretty low power accessories lol.


quote:

You'll have a line of fricking paperweights littering the highway.


The new F150 can power a reasonably sized house for 3 days lmao
This post was edited on 6/13/21 at 9:39 pm
Posted by lostinbr
Baton Rouge, LA
Member since Oct 2017
9716 posts
Posted on 6/13/21 at 9:41 pm to
quote:

Radio on?
Windshield wipers?
Bluetooth?
Navigation?
Dashboard display?

All that PLUS A/C...

You'll have a line of fricking paperweights littering the highway.

You’re either severely overestimating the electrical load of those items or severely underestimating the capacity of an EV’s battery.

The average home in Louisiana uses 1,254 kWh each month. That means an 80 kWh EV battery could power an entire home in Louisiana for nearly 2 days. You think a car A/C is going to drain it in a couple of hours?
Posted by shel311
McKinney, Texas
Member since Aug 2004
111235 posts
Posted on 6/13/21 at 9:43 pm to
quote:


Radio on?
Windshield wipers?
Bluetooth?
Navigation?
Dashboard display?

All that PLUS A/C...

You'll have a line of fricking paperweights littering the highway.
It uses very little juice when sitting and not moving on traffic. The list you gave uses very little from the car.
This post was edited on 6/13/21 at 9:45 pm
Posted by Korkstand
Member since Nov 2003
28738 posts
Posted on 6/13/21 at 10:00 pm to
quote:

Radio on? Maybe 20 watts
Windshield wipers? Negligible
Bluetooth? Laughably negligible
Navigation? Negligible
Dashboard display? Negligible


Basically think about how long your ICE car will run all that stuff off its little battery with the engine off, and then multiply by roughly 100.
quote:

All that PLUS A/C...
This is the only major power draw, dwarfing all the others you mentioned combined by about 100 times.
quote:

You'll have a line of fricking paperweights littering the highway.
Not quite. A Tesla, for example, requires about 2kw to run the AC. That means it will lose maybe 5-10 miles of range per hour running the AC constantly. For comparison, an ICE might burn 1/4 to 1/2 gallon of fuel per hour idling with the AC on (obviously depends on engine). That means it will lose a similar 5-10 miles of range per hour.
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