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Re: Electric cars. [Re: venice] #1045340
6th Oct 2017 10:14pm
6th Oct 2017 10:14pm
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granny Offline
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Those little yellow buses that ran from Woodside to B'head town centre were electric. They seemed to be ok at crawling pace.

Why is it not possible to have the electric cars with the switch to petrol when the battery dies. That would be so much more sensible .

How are we going to manage supply of all the electricity ? We keep on getting told to switch off and save energy !!

Talking to a guy today who went to Greece for a holiday ,staying with family members. Celebrating a birthday when all the electricity went off. Not knowing what was happening, he was told that different poorer areas outside the centre of Athens have their supply cut off to boost the wealthier areas !

I reckon we should be looking into cow pat in far greater detail. Back to nature smile


Humankind has not woven the web of life. We are but one thread within it. Whatever we do to the web, we do to ourselves. All things are bound together. All things connect.
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Re: Electric cars. [Re: granny] #1045344
6th Oct 2017 11:16pm
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diggingdeeper Offline

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Originally Posted by granny
Why is it not possible to have the electric cars with the switch to petrol when the battery dies. That would be so much more sensible .


They have them, they are called hybrids. However the concept is flawed:- Battery cars have very little energy storage so need very light vehicles to give them a decent mileage. The batteries are heavy, adding a tank full of fuel and a petrol engine makes the cars even heavier and the battery range much less. Even worse, all the extra clobber a petrol engine needs these days for emission regulations adds to the weight, cost, reliability and serviceability. Petrol engines also need a heavy gearbox as they have a limited power range.

The answer is a hydrogen-fuel-cell/battery hybrid, the batteries and the hydrogen both provide electricity so there is only a need for one engine, the electric motor. Hydrogen is a clean energy, no emission control stuff required. In mass production the fuel cell cost will drop considerably and the control systems are very simple. The disadvantage at the moment is the weight of the high pressure hydrogen tank but carbon fibre/graphene and maybe other laminates will reduce that weight considerably. Either no gearbox or a much smaller gearbox are needed with electric motors as they have a very wide rev range and almost full power at all revs (compared to petrol).


In a time of universal deceit - telling the truth is a revolutionary act. George Orwell

We should judge our economy by the absence of poverty, not the number of billionaires - Jeremy Corbyn
Re: Electric cars. [Re: venice] #1048460
26th Nov 2017 2:55pm
26th Nov 2017 2:55pm
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London
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Originally Posted by venice
As lack of charging infrastructure is holding back electric cars being as convenient as they might be, Could lamposts be converted to charging posts and if they could, what are the downsides?


Sounds like a good idea to me.

Re: Electric cars. [Re: venice] #1048478
26th Nov 2017 5:00pm
26th Nov 2017 5:00pm
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venice Offline OP

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venice  Offline OP

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Yes apparently , as assassin said in an earlier post answering mine, its already been done in London. Thought Id hit on a new idea lol! Went to London recently and yep , sure enough, they are being used already.

Re: Electric cars. [Re: venice] #1048572
27th Nov 2017 2:00pm
27th Nov 2017 2:00pm
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Wallasey
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Habdab Online content
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All this talk of Electric cars to reduce pollution. Surely the problem of pollution is just being masked, as Power stations produce pollution while making the Electricity that charges the pollution free cars.

Last edited by Habdab; 27th Nov 2017 2:00pm.

Fetere sum, ego sum Ergo
Re: Electric cars. [Re: Habdab] #1048586
27th Nov 2017 3:03pm
27th Nov 2017 3:03pm
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diggingdeeper Offline

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Originally Posted by Habdab
All this talk of Electric cars to reduce pollution. Surely the problem of pollution is just being masked, as Power stations produce pollution while making the Electricity that charges the pollution free cars.


But the polluting power stations are being shut down mostly because they are working long after their end of life. The main reason the Government is interested in wind power etc is because they are quick to build, they haven't got enough time to build nuclear/gas/biomass power stations. We were about to run out of electricity in 2020, wind power is plugging a big hole.

Unfortunately the Mersey barrage is being looked at again which isn't good and even worse is that the Government has stitched us up with the stupidly high price and danger of nuclear stations.

Tidal turbines are the best solution but is largely being overlooked despite all the trials proving the technology.

Storage of electricity is our next problem and no clear leader is coming up but don't be surprised if you have to fork out for substantial batteries to be fitted to many houses in the near future which is another poorly thought out concept.


In a time of universal deceit - telling the truth is a revolutionary act. George Orwell

We should judge our economy by the absence of poverty, not the number of billionaires - Jeremy Corbyn
Re: Electric cars. [Re: venice] #1048650
27th Nov 2017 9:42pm
27th Nov 2017 9:42pm
Joined: Jun 2011
Posts: 337
Wallasey
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Habdab Online content
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Habdab  Online Content
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Wallasey
Maybe it's time to buy a good set of Jumper leads, just in case my battery runs flat.


Fetere sum, ego sum Ergo
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