Posted on 09/21/2022 11:21:13 AM PDT by citizen
I've been musing re home EV charging. I have no expertise beyond common sense but there will surely be practical considerations involved...
Let's say we have a surburban family with mom, pop & children all driving EVs. How many can be charged at once? I am thinking a multi-EV charging system and the necessary electrical capacity to safely power it would both need to be heavy-duty and therefore quite expensive. ka-ching and then you get to pay the electric bill!
If this home only has a minimum power charging system requiring hours to charge a single vehicle, there would be EVs on that charger constantly - and squabbles about "I'M next!" Btw, the insurance companies will note these systems and surely raise their rates accordingly.
Scenario 2: Same residential home but Mom & Pop are travelling for a week. I can envision Junior or Miss Cutie Pie telling their friends "Sure, come on over! My parents are gone for the week, you can use our charger all you want." More ka-ching on the power bill.
On a concurrent note, I've read speculative posts on how once a residential neighborhood reaches sufficient EV saturation, the electrical distribution serving them will necessarily need to be strengthened to handle all the extra required capacity. Someone must pay up for these modifications.
“It would not have worked for me or my wife while we working with our commute.”
A common plug-in charger is rated at 40 amps, plus or minus so we are talking roughly 8 kw.
An EV uses about 0.25 kwhrs a mile. A round-trip 100 mile commute would use 25 kwhrs. Or about 3 hours charging time if your battery is low. That is about 1/3 the capacity of many EV’s.
In the real world topping off is done at a slower rate, taking longer to charge that amount.
“Here it is from a Tesla owners manual. I’ve been checking this out because we are thinking about buying one.”
Ok. If you are serious, I will be happy to discuss within my limited knowledge base.
As your link notes, the Model three uses the newer LFP battery. The one in your picture says LiFePO4. Same thing. Anything more than a year or two old would apply to the older Lithium-ion tech.
Also, the LFP is cobalt free.
LiFePO4 == LFP
Quickest production car 250+ mph, 0-60 1.9 seconds, 620 mile range
Very nice! But impractical for most except the unanchored young.
Not a problem in Californicatia. You can’t charge them any more.
Here’s a solution to Californicatia’s illegal immigrants problems, courtesy of TX RIGHTFULLY shipping them to Californicatia. All those ‘e-cars’ that Californicatians purchased and now cannot charge, use them as accommodation for all the illegal immigrants that Californicatia wants let in. They can also house their homeless.
Perhaps the illegals can get jobs constructing new power plants to power said cars. That is, if Gruesome Newsome finally admits his mistake and actually starts WORKING for his constituents.
I’m not holding much breath for him to smarten up, however!
thanx for the 411
“The dedicated Rappahanock Power transformer at my house, which I do not share, has 12.5 KV-A stencilled on the side of it. Supposedley, I have 200 Amp service which is a joke because 200A times 220v = 48KVA. So the transformer I have is woefully undersized for the service I supposedley have.”
That rating is a 24/7 rating. Actual lifetime depends on the use. Running at less than rating extends the life, running over lessens the life.
“Not a problem in Californicatia. You can’t charge them any more.”
Ha Ha Ha Ha Ha Ha Ha Ha Ha Ha Ha Ha Ha Ha Ha Ha Ha Ha Ha Ha
“An electric vehicle that generates it own electricity similar to the diesel electric locomotive is the correct way to go.”
It is more efficient to use a NG combined cycle plant to generate the electricity.
Plus, using electricity generated by nuclear, NG, hydro makes more use of available resources reducing demand on our oil reserves keeping prices more stabile.
Adding the onboard generator adds more complexity and more service center visits..
“Economically, it doesn’t make sense when factoring in the $70,000 Tesla, which is 17,544 gallons of gas.”
That statement doesn’t make sense.
“Very nice!”
Awesome!! Phenomenal!
From the link you posted;
“With RELiON’s LT Series batteries, users who sometimes face below-freezing temperatures can now enjoy the many benefits of a lithium battery without having to worry about warming the battery before charging.”
That is not true about Tesla batteries, which is what I’ve been talking about all along. Teslas have a very sophisticated battery temperature control system.
Learn to follow a conversation. Read at the link you posted. Read about how Tesla controls battery temperature. The battery at the link you posted is worlds apart from a Tesla high voltage battery.
And thanks for finally saying your knowledge base is limited!
What’s wrong with you? Can’t have a discussion without defaulting to ad hominem fallacy?
Best of luck to you. The other 98% won’t even have a clue and if they tried they would kill themselves. Still a 240 circuit isn’t a great improvement.
“Learn to follow a conversation. Read at the link you posted. Read about how Tesla controls battery temperature. The battery at the link you posted is worlds apart from a Tesla high voltage battery.
And thanks for finally saying your knowledge base is limited!”
At least my knowledge base has the facts. Obviously you are not serious about buying a Tesla but I gave you the benefit of doubt. My bad.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.