How many nuclear power plant + to ride electric?

Transport and new transport: energy, pollution, engine innovations, concept car, hybrid vehicles, prototypes, pollution control, emission standards, tax. not individual transport modes: transport, organization, carsharing or carpooling. Transport without or with less oil.
fredericponcet
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Re: the efficiency of an electric car?




by fredericponcet » 20/09/13, 09:33

Christophe wrote:
fredericponcet wrote:"but with your solar panels, you can not even feed an electric heater"!!!


Uh it's true is not it? Or one in good weather (and in this case, on a well-designed house with natural solar contribution, the heating is not necessary ...)

What what? I am a badger or was it irony or I did not understand the joke?


Yes that's it. Obviously, we can not supply electric heaters with solar panels, but that would be all perfectly silly way while a simple greenhouse would be much more effective.
I said "badgers", it's a bit hard because it's only ignorance, but I meant to get there, you have to think that the most interesting use of electricity would be heating ! However, we agree, it is the most stupid use there is.
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Refineries consume electricity




by Jumpy » 20/09/13, 09:55

two omissions in this approach "how many nuclear power plants to supply 280 million electric vehicles in Europe"

1 - mainly gasoline and diesel cost of electricity for the refinery. For diesel in France is of the order of at 5 7% of the fuel energy made available thanks to the quality of imported oil.
to obtain from "light" quality crude oil (Libyan oil for example) 100 equivalent w / h of diesel it is necessary to consume 5 to 7 w / h of electricity

In other countries, the electric cost of diesel is to 10 20%

expressed otherwise removing oil for cars would save electricity production hence the need for 55 Gw I do not know how to Tw / h is to revise down about 10%

2 - oil cost to transport petrol, diesel etc. plus losses in evaporation. 2% can remove about power of Gw 55 280 to load millions of European electric vehicles
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by Arnaud M » 20/09/13, 10:35

Another approach, in ecological car they believe in the conso 2020 of electric cars will elctrique 1% of our current cons.
A link with the decline expected conso with insulation should exceed 1%, no more central to predict.

For post top, Interesting to know that 100 diesel electric Wh ask 7Wh.
With a diesel performance 10% in town to 1 km in diesel must 70% of the electricity for electric 1 km. The total electric consumption is only 30% compared to diesel, without combustion problems behind ... TBC.
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Re: refineries consume electricity




by Christophe » 20/09/13, 10:40

Jumpy wrote:two omissions in this approach "how many nuclear power plants to supply 280 million electric vehicles in Europe"


The yield refining / transport is nevertheless included in the table that I put above ... My calculation only applies to French road vehicle ...

Also some refineries (modern) must have their own electric turbine instead of swinging at the flare right? So no overhead electric ...
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by I Citro » 21/09/13, 15:46

Hello Arnaud, and excuse me, I try to understand your words with your detailed calculations.
You rebuke me if I cheat on me and sharpens my bases:
Arnaud M wrote:For post top, Interesting to know that 100 diesel electric Wh ask 7Wh.
With a diesel performance 10% in town to 1 km in diesel must 70% of the electricity for electric 1 km. The total electric consumption is only 30% compared to diesel, without combustion problems behind ... TBC.

So a diesel consuming "at the pump" 5 to 7 liters per 100km or 50 to 70 kWh
(It is considered that any liquid fuel: petrol, diesel, LPG contains 10kWh / liter)
... Consume town about 700Wh diesel per km (equivalent to 7 100km liters) and will need electricity 49Wh.

Knowing that electric cars consume 200Wh per kilometer (in the case of our old 106 / AX / Saxo, and one of the most successful new (Leaf, Fluence, Tesla). Rather, it represents 25% of the electrical energy consumed to 1 liter of diesel.
Of course this ratio improved with MIA that consumes between 100 and 150Wh per km (in 33 50% either) but does not reach the 70% you ads.
:?

Anyway, it lacks in this calculation the rest of the embodied energy contained in a liter of fuel, ie the energy required to extract, especially transport, refine, the retransporting ... These figures vary enormously between the place of extraction and quality of the deposit, but the vast distances mean that some experts believe, but I do not find publishable links that would represent 2 3 to both the energy contained in a liter of fuel.
If we could prove it and put the car manufacturers before this fact, it could actually compare the impacts from well to wheel.

That would be very disturbing to say that a car consuming to 5litres pump to 100km has actually consumed 15 liters ...

When an electric car consumes 20kWh for 100km (equivalent energy 2 100km liters), if we add the EDF coefficient 2,58, 51,6 kWh this is the 100km barely more than 5 liters.
Fortunately, this coefficient 2,58 is not a fatality but rather a tremendous asset for renewable energy ...

Thus 3.000 kWh produced annually by my solar panels have an efficiency of 1 (or 100% if you prefer) because this electricity is used locally instead of being transported over long distances through power lines.
: Mrgreen:
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by Did67 » 21/09/13, 17:22

citro wrote:
but I do not find publishable links that would represent 2 3 to both the energy contained in a liter of fuel.



We should be able to approach the question with this testimony found on another forum :

The last super tanker on which I sailed in 2004, and still sailing, had a time 2 25000 kW motor to 78 rpm.
Consumption was 95 tons of heavy fuel oil (IF380 day).
Main dimensions: Length 333 meters, width 60 meters (Clamshell) Draught at full load 26 meters.


With its capacity and speed, we should be able to "frame" the question ... well, the answer!

I found a door as info-generating content puts 43 days between Shanghai and Le Havre.

So admit 20 days of Angola in Havre or Venezuela ...

So 20 100 X tons of heavy fuel consumed to 400 000 tons transported ...

I think we are off the mark!

Undoubtedly we must consider the whole chain: pipeline, extraction, etc <... but even! I highly doubt!

However, we approach these levels in the disastrous case of Alberta's oil sands, because heated tons of sand, after having stirred to extract the oil (bitumen too thick originally) to. There, it is disastrous - and profitable if oil is about to 50 100 dollars ... Hence the recent success!
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by sen-no-sen » 21/09/13, 18:09

citro wrote:Thus 3.000 kWh produced annually by my solar panels have an efficiency of 1 (or 100% if you prefer) because this electricity is used locally instead of being transported over long distances through power lines.
: Mrgreen:


Sorry to play the Citroen killjoy, but your solar PV panels also had gray energy which is not necessarily "all pink" either!
But it is clear that the advantage goes to the electric car conditions as its source of production is nuclear or renewable sources.
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by Remundo » 22/09/13, 08:43

Diagnosis of public lighting by ADEME
Source ADEME 2008

Public lighting in France = 5.6 TWh / year

either 5 600 000 000 kWh / year to illuminate the crows

Here calculations leaving dreamer:

By turning off a light bulb on in two public lighting, we could charge half a million electric cars ....

and even see through the streets ...

In France, 5,6 TWh consumed by the average public lighting park is:
18% of the total energy consumption of French towns
47% of their electricity consumption. Current emissions of French public lighting are evaluated by ADEME about 670 000 CO2 equivalent tonnes / year


This represents 15 342 000 kWh / day

Half of this energy gives 7 671 000 kWh

is the refill of 500 000 electric cars to 15 kWh / night, giving them about 100 km of autonomy per day for cars quite comfortable and equipped ...

Remember though that this colossal energy is paid by the community for quite doubtful service.

EDF actually not knowing what to make of his GW night ... The cons of public lighting exactly mobilizes 640 MW on average!

This means that the night must 1300 MW, 2 900 MW power plant at night for public lighting ... or simply an EPR ...

I think this deserves a meditation : Idea:

source: Forum Oleocene
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by Did67 » 22/09/13, 09:42

I feel that the discussion begins. Common starting to look at this more closely ...

But we know how much this is associated with security, a sensitive subject. And for a mayor, losing his seat for "so little" (because in the budget, next door, swimming pools, party rooms, municipal staff, etc ... it weighs little)

But you're right. I live in a village where there are no street lights.
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by Remundo » 22/09/13, 10:09

Manuel V. idea about Marseille; just put more street lights !! :P
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