General > General Technical Chat
Confused about PHEV, Hybrids, etc...
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gnuarm:

--- Quote from: pcprogrammer on August 18, 2022, 06:16:27 pm ---And further more is there actual proof that the CO2 is the true and only culprit for climate change? How about methane which is far more a greenhouse gas than CO2. Waste disposal sites in South America are emitting a but load at the moment.

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The sheer magnitude of CO2 emissions dwarfs everything else that is part of the problem.  Yes, there are methane emissions, but not the massive, continuous emissions from transportation, building and many other human endeavors.  Once you explore the problem and get a feel for how large the magnitude is, it's amazing.  Just making concrete releases CO2, independent of the source of the energy involved.  I believe that is a non-trivial part of the problem, around 8%. 
gnuarm:

--- Quote from: Monkeh on August 18, 2022, 07:29:37 pm ---
--- Quote from: gnuarm on August 18, 2022, 02:55:20 pm ---I'm just saying the present lack of overnight charging is not the huge, impenetrable roadblock that people try to make it out to be.

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It is for those who do not have it. The difference between 'now' and 'some indeterminate time in the future with no concrete plans' seems lost on you.
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LOL!  "No concrete plan" applies to nearly everything we do.  The point is there are no unforeseen hurtles.  This is not rocket science, no new technology is needed.  We just need to install some EVSE units.  As far as apartments and condos, they will be motivated by economics.  The ones that install EVSE will have renters and buyers.  The ones that don't, will end up empty.  Yeah, that's real.  Just like cable, Internet and even phone lines.  At one time they did not exist.  Places that didn't have them were the ones the ended up with fewer renters and buyers and lost money.  Now they are universal. 



--- Quote ---
--- Quote from: gnuarm on August 18, 2022, 03:14:57 pm ---This is such a trivial problem to overcome.

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I look forward to your detailed plans to resolving this issue for the majority of the affected population base. It's clearly simple, you should have those sorted by next week.

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I just gave it to you.  What details plans do they prepare to deal with traffic congestion when new homes are built?  None, nada, zip, zilch.  Yet, they eventually build roads and people get where they need to go.
gnuarm:

--- Quote from: 2N3055 on August 18, 2022, 07:32:24 pm ---As for when people are charging, you can see the pattern by looking at parking patterns.  Pretty much, it will be happening overnight. All of them at the same time.
When they are home from the office, and all other activities. 7 kW is not enough power though, you need at least 16kW to charge it in reasonable time.
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Nonsense.  BEVs mostly get around 4-5 miles per kWh.  In the US the average drive is 40 miles, or 10 kWh.  I can do that on a 120V outlet overnight!  In fact, that is what I do and my car is a glutton at 3 miles per kWh.  A 4 kW EVSE (16A @ 240V) gives 16 mph charging rate and will provide 200 miles in 12.5 hours.  Is that not fast enough?



--- Quote ---Average of 50km is not important again, but a peak drive.. If I have to go Rijeka-Zagreb two days in a row (something very common here) I need to charge for 2 X 360-380 km in two days. And that has to be range, about 400km on a charge.

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Or you stop for 10-15 minutes along the way, have a coffee and hit the bathroom.  You can get up to 200 miles or even 321 km in that time.  If you are going to whine that this is not reasonable, then I guess you can keep your gas burner and be the last guy driving an ICE in 2050. 
gnuarm:

--- Quote from: Cerebus on August 18, 2022, 07:34:24 pm ---
--- Quote from: gnuarm on August 18, 2022, 03:21:59 pm ---
--- Quote ---Even L2 charging isn't free or anywhere near free once you price in the wiring to it.  Streetside charging, even if only outlets, is a pretty big capital outlay.  I'm not sure there is enough copper available.
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LOL.  Ok, if you say so.


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You clearly have no idea about infrastructure costs. We're talking about places where you need to dig to install new electricity connections, none of that third world pig on a pole stuff.

The average cost of a new supply connection from existing street cables to a dwelling in the UK is £1790, most of that cost is digging in metalled roads and making good. There are 52 roadside parking spaces down my typical residential London street. That's a minimum of 26 type 2 charging points, at a minimum of £1000 a pop for the supply, £1000 a pop for a twin socket charging pillar, so ~£50,000 plus for one street.

If you include all the streets that London Licensed Taxi drivers are required to learn there are over 30,000. That's only the streets within six miles of Charing Cross. London is about 30 miles across, give or take. Which leads to a crude estimate of 180,000 streets. There's 9200 miles of roads in London (not an estimate). So that's on the order of £9 billion, just for London. Over £1000 for each man, woman and child that lives in London. The current property taxes for London total about £5 billion a year.

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I'm sorry, I really have no idea what you are talking about.  "new supply connection from existing street cables to a dwelling"???  Are you planning to build a new house just for your car? 

This is the sort of stuff people from the UK give me all the time.  There are some who have BEVs and discuss rationally how they charge in their garage or driveway.  None of them have needed new feeds from the street!  You must think a BEV requires a direct connection to a nuclear power plant to charge!  I charge my Tesla model X from a 120V, 15A outlet that provides 1.44 kW to the car which puts just 1 kW into the battery.  In the UK, you don't even have such low power outlets, do you?

This is why I typically don't discuss BEVs with people from the UK.  They managed to essentially run the world at one point, but today can't seem to be able to wire a 240V outlet.
nctnico:
@gnuarm: please stop. I'm pissing my pants here  :-DD
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