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Old bloke View Drop Down
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    Posted: 17 Feb 22 at 2:34pm
No suitable for everyone, but a normal domestic sized photovoltaic system will supply most of the power that most people would need to run their car
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Post Options Post Options   Quote Chris_H Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 22 at 2:49pm
Originally posted by iGRF

Long ago I tried to push the idea of universal sized batterys that you just switched at a gas station where they were stored in racks trickle charged by solar/wind, the fuel companies get to stay in the loop, battery production gets to be developed by rival companies all claiming better mileage etc, but all cars get built with a universal 'slot' to slide the battery in and out of, and charged for each use. Government would even benefit by vat on charging whatever. But just like dinghyworld, nobody with any vision or thought of standardisation in charge. So here we are with dozens of different cables, attachment points, charge units not working, no chance of dealing effectively with terrace street parking, everyone shy of all electric vehicles due to range fear. Typical mess brought about by capitalist competition driven dogma.

Whilst the idea of a replaceable battery sounds like a good idea, you have to remmber that EV batteries are not like yer normal car battery. The battery packs extend from the front to the rear axle and across tha back. i.e they are frickin huge and form the base platform of the chassis. Check out any EV car brochure and appreicate the dilemma. Its just a non-starter

However, you are right about the required standardisation of charging cables/points etc. That is inevitable in time. It just needs agreement cross the manufacturers and various governing bodies
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Post Options Post Options   Quote Chris_H Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 22 at 2:53pm
Originally posted by ohFFsake

Still think it's all bonkers at this moment in time.

If I go and buy an EV tomorrow the energy source will still be 100% fossil fuels, all I'm doing is changing the process in which the energy is delivered to the point of use. Net effect is more energy consumed and more CO2 created.

The only attraction is a reduction in fuel cost which is purely due to a taxation anomaly that cannot continue if there is a mass take up, and which is massively outweighed in any case by the costs of changing, from my current vehicle.

When there is a surplus of renewably generated electricity it might make some sense environmentally to consider switching, but it makes absolutely zero sense at the moment

There are plenty of studies that refute your assumption of Net Energy would now be more..... Go Google... You are clearly anti-EV, and thats fine and I wont be able to change your mind. But the reality is that we have to go EV (if buying new) by 2030 whatever side of the fence you are on, so suck it up buttercup (meant nicely). I look forward to walking the streets of London and be able to breathe something a little cleaner ...  ;-)


Edited by Chris_H - 17 Feb 22 at 2:55pm
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Post Options Post Options   Quote 423zero Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 22 at 3:03pm
Air is cleaner now since start of the industrial revolution, tens of millions of houses burning coal, power stations, huge industrial chimneys, no crop burning, but, now we know better and have to try harder.
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Post Options Post Options   Quote iGRF Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 22 at 3:09pm
Originally posted by Chris_H


Whilst the idea of a replaceable battery sounds like a good idea, you have to remmber that EV batteries are not like yer normal car battery. The battery packs extend from the front to the rear axle and across tha back. i.e they are frickin huge and form the base platform of the chassis. Check out any EV car brochure and appreicate the dilemma. Its just a non-starter
However, you are right about the required standardisation of charging cables/points etc. That is inevitable in time. It just needs agreement cross the manufacturers and various governing bodies
There you go with those negative waves moriarty. Yes they are because of the way they developed linking loads of carphone like battery cels a la Tesla. But things have come on since then, there has been enormous strides forward in battery technology (mostly surrounding the graphite heat resistant terminals that will deliver fast charge without catching fire). Most of this development is aimed at range and faster charging, but hey if you have lots of way stations you don't need massive range or fast charge so the battery design doesn't have to be so wide and thin, horses for courses.

Edited by iGRF - 17 Feb 22 at 3:33pm
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Post Options Post Options   Quote ohFFsake Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 22 at 3:18pm
Originally posted by Chris_H

Originally posted by ohFFsake

Still think it's all bonkers at this moment in time.

If I go and buy an EV tomorrow the energy source will still be 100% fossil fuels, all I'm doing is changing the process in which the energy is delivered to the point of use. Net effect is more energy consumed and more CO2 created.

The only attraction is a reduction in fuel cost which is purely due to a taxation anomaly that cannot continue if there is a mass take up, and which is massively outweighed in any case by the costs of changing, from my current vehicle.

When there is a surplus of renewably generated electricity it might make some sense environmentally to consider switching, but it makes absolutely zero sense at the moment

There are plenty of studies that refute your assumption of Net Energy would now be more..... Go Google... You are clearly anti-EV, and thats fine and I wont be able to change your mind. But the reality is that we have to go EV (if buying new) by 2030 whatever side of the fence you are on, so suck it up buttercup (meant nicely). I look forward to walking the streets of London and be able to breathe something a little cleaner ...  ;-)


I'm not anti-EV at all, I think they have their part to play as part of a balanced transport infrastructure. But I think it is wrong to mandate that they are the one and only way forward, or that they are suitable for all circumstances.

All the comparison data I've been able to find showing a decrease in "well to wheel" emissions presumes that electricity is generated from a variety of sources, some of them renewable. But that is an entirely wrong assumption if we consider the case of someone considering switching from petrol to EV. This creates an entirely new and additional demand for electricity, and right now that would be met 100% by fossil fuels, as they are the only form of electricity generation that can meet any new demand.

I can see that the current EV technology works for urban situations where vehicles typically travel slower and for short distances, and where they can have a positive effect on pollution, but that doesn't make them suitable everywhere else. Not everyone lives in London!

I just think we should be looking at a range of solutions such as biofuels rather than an expensive "one size fits all" approach, especially when we are in a serious and growing energy crisis.


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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 22 at 3:38pm
I think that is a pretty balanced assessment of the current situation.
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Post Options Post Options   Quote fleaberto Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 22 at 3:47pm
How about battery swapping Versus battery charging.


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Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 22 at 3:49pm
Originally posted by Old bloke

No suitable for everyone, but a normal domestic sized photovoltaic system will supply most of the power that most people would need to run their car

That’s not true. I have a roof full of south facing panels and this last week they have generated about 0.4kW of power. Need at least 1.6kW to charge an EV and that would be a very slow charge. Not to mention the solar panels only work during the day, when the car is normally in use and not around to be plugged in!
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Post Options Post Options   Quote Old bloke Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 22 at 4:29pm
If every week everywhere was a rainy week in February, we wouldn't need any electricity as we would have all topped ourselves.
Fortunately most weeks in most places have more sunshine than that
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