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Comment 11 for Advanced Clean Fleets Regulation (acf2022) - 45 Day.

First NamePaul
Last NameRaab
Email Addresspraab@vcsar3.org
Affiliation
SubjectWho is doing the math - power dilemma
Comment

Ok, let us look at the other side of the equation where electric motors requires an exponential increase in current under load.

from Wikipedia "the Tesla Model S requires 10 kW (14 hp) at 70 mph (110 km/h), and 31 kW (42 hp) at 100 mph (160 km/h) "

Just a 40% increase in speed requires 3 times more power and cuts the range to 1/3 the distance.

If you try putting a trailer behind a Tesla, range drops from 300 miles to 75 miles or 1/4 of the unloaded range !!!

Yes Teslas cars are very efficient only needing a mere 14 horse power to get down the road.

Yes teslas can deliver lots of HP (283) but it will deplete its 62 KWh battery in just 10 minutes, 10 miles and over heat.

Were going back to the model T ford with 22 HP?

This is fine for the most part, since they are used by single drivers commuting to work at 14 HP.

 

Now you want to kill desil semis ??

 

Long haul semi's will require huge batteries to go 900 miles, 80,000 lbs (40 tons), 15 hours at 60 mph.

It will need a 3.1 million Watt hour, 54,000 lbs (27 tons) battery which costs $600,000.00 

The truck which weighs 25,000 lbs (13 tons) will only be able to carry a useless payload of 1,000 lbs (1/2 ton).

 

This is why you do not see any electric semis on the road. totally impractical and expensive.

Even medium range semi's would require a battery that weighs half the payload. 

 

A semi would need a multi-megawatt charger.

No one seems to be doing the math or making a plan to really build the infrastructure necessary to provide the power necessary to make this workable.

 

This requires 10 to 100 times more electricity and distribution than california has.

I do not see anything being built...

 

Most homes are "allocated" 2.5 to 5 Kva each from the pole tranformer.

Homes with natural gas get the lower and all electric get the higher.

 

You may have 10 to 16 homes tied to one pole/underground transformer.

 

The ten hour charger for one E-vehicle needs 8 Kva! Two EV's needs 16 Kva!!

25 Kva transformer can only support 3 chargers MAX (nothing else).

37.5 KVa can support 4 chargers MAX (nothing else).

50 Kva can support 6 chargers MAX (nothing else).

 

There maybe an exploding transformer near you soon, due to your poor planing.

 

Every neighborhood will need a 10 fold increase in the number/size of transformers alone.

Now you need bigger wires too and 10 times more power plants!

 

What army is building and installing the 7 million, 250kva distribution transformers needed.

 

13,000,000 house holds X 8,000 watts X 2 EV in every driveway = 208,000,000,000 watts.

now add in 200,000 fast chargers needing 100 kva transformers each 20,000,000,000 watts.

now add in 50,000 mega-chargers needing 1,000 Kva transformers each  50,000,000,000 watts.

 

That is 278 gigawatts and we struggled last summer with 55 gigawatts.

 

We have 1,500 power plants in California. 

Where will you build 10,000 plus more power plants? at what cost ?

You need to build 1000 new power plants every year for ten years.

I do not see this in your plans.

 

Oh you are also turning off natural gas in homes for heating and cooking to go to electric heat.

Did you do the math there too?

 

However you want to slice and dice the numbers, there is a big power hole that needs to be filled.

 

Forcing only EV-car/turck/semi sales in 2035 is not going to work without massive power upgrades starting now.

 

The internal combustion engine wins the loaded power and range battle at this time.

 

No, Hydgron technology and infastructure is too far off and has many issues.

 

 

 

 


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Date and Time Comment Was Submitted 2022-09-27 15:33:43

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