A Conversation for SEx - Science Explained

nuclear power stations, cradle to grave

Post 1

kea ~ Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small, unregarded but very well read blue and white website

Is it possible to build, run and maintain a nuclear power station if you don't have any oil? I'm meaning right from uranium mining through to disposal of nuclear waste to eventual decomissioning of the plant when it's too old.

What I am asking is if the power from the plant can be used to run the mining machines, manufacture the building and gear, or power the ships that transport the waste, that sort of thing.


nuclear power stations, cradle to grave

Post 2

pedro

No, any more than it's possible to have a cheese sandwich without using oil.

I think the relevant question is 'Do nuclear power stations provide a surplus of energy when you include the costs (including CO2 emissions) of building and decommissioning it, and dealing with the waste. And is this cost-effective, with the inevitable government subsidies, and other social costs, when renewable energy *may* well be a much better way to generate energy in the long-term?'.

I think possibly a time-machine may be useful in the construction part of it.smiley - winkeye


nuclear power stations, cradle to grave

Post 3

Mr. Dreadful - But really I'm not actually your friend, but I am...

<>

Ummm... actually it's easily possible to have a cheese sandwich without using oil.


nuclear power stations, cradle to grave

Post 4

laconian

Possible, but I don't think it's easy. You'd have to walk to the cow, to start with smiley - smiley.


nuclear power stations, cradle to grave

Post 5

pedro

>

Yeah, if organically fed cows, locally bred, who eat purely grass, and you don't drive to the local farmer's market to buy them, and he used an airship (powered by methane from cow farts) to get them to the place where you bought them.

Never mind the wheat for the bread...


nuclear power stations, cradle to grave

Post 6

kea ~ Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small, unregarded but very well read blue and white website

>>You'd have to walk to the cow, to start with<<

smiley - laugh


I'm fairly sure that people used to eat wheat bread and cheese sandwiches before the invention of the internal combustion engine smiley - winkeye So I guess the question is can we *still have a cheese sandwich without oil smiley - tongueout



nuclear power stations, cradle to grave

Post 7

kea ~ Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small, unregarded but very well read blue and white website

>>
I think the relevant question is 'Do nuclear power stations provide a surplus of energy when you include the costs (including CO2 emissions) of building and decommissioning it, and dealing with the waste. And is this cost-effective, with the inevitable government subsidies, and other social costs, when renewable energy *may* well be a much better way to generate energy in the long-term?'.
<<

Add into that the rising cost of oil. I'm not so much asking if nuclear energy is sustainable economically in its own right, as if it's possible at all given that oil is about to get very expensive and scarce.

The secondary question to that is: is it possible to extract hard to get to oil if you don't have any cheap oil?


nuclear power stations, cradle to grave

Post 8

Taff Agent of kaos



oil in a cheese sandwich thats a bit posh, whats wrong with good old fasion LARD....this oil stuff is overated if you ask me, it won't hold the black crispy bits in it when you spread it on bread

smiley - bat


nuclear power stations, cradle to grave

Post 9

pedro

<< The secondary question to that is: is it possible to extract hard to get to oil if you don't have any cheap oil?>>

What was the primary question?

Yes, if the price of oil is higher than the price of extraction and transport etc.


nuclear power stations, cradle to grave

Post 10

Arnie Appleaide - Inspector General of the Defenders of Freedom

kea, that's an important question - as a corollary/restatement, I think it's important to consider that the world as we know it now is geared toward use of fuels/energy derived from oil. So it would be possible, in theory, to do what you describe.

For example, for the mining/drilling machines, they could in theory be completely electrically powered, or the energy/heat/electricity from a nuclear power plant could be used to generate a liquid fuel that could be used in these machines.


nuclear power stations, cradle to grave

Post 11

kea ~ Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small, unregarded but very well read blue and white website

Question 1: can you have nuclear power without oil?

Question 2: can you have expensive oil without cheap oil?


>>
Yes, if the price of oil is higher than the price of extraction and transport etc.
<<

But you have to factor in the whole cradle to grave thing plus how interdependent all oil-based technologies are on each other. It's not just the economics in a straight line like you said. You have to take into account the manufacture of the machines that extract the oil and what happens when those flow-on industries become unviable. The price of metals is rising fast (because of China I think), so it's not just the price of oil, it's the price of everything. This is the what peak-oil analysts are saying - that *everything is dependent on oil.

I've also been hearing things like companies can't currently keep up with the production of the massive tyres for the machines used in mining. Now if we had an abundance of cheap oil you'd expect market forces to eventually sort that out. But we don't have cheap oil any more, so what's going to happen?


nuclear power stations, cradle to grave

Post 12

kea ~ Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small, unregarded but very well read blue and white website

>>
For example, for the mining/drilling machines, they could in theory be completely electrically powered, or the energy/heat/electricity from a nuclear power plant could be used to generate a liquid fuel that could be used in these machines.
<<

Thanks Arnie. I wasn't sure if you could power all that stuff that uses oil by using electricity instead (I thought electrical power was less powerful in some way, eg why electric cars are going to be quite different from petrol ones).

Do we know then if it's possible in reality? Does the technology exist currently to do that? And is it reasonable, or would we have to build a nuclear power plant on every block to make it work?


nuclear power stations, cradle to grave

Post 13

pedro

<>

On industrial scales, you can't have anything without oil.


<>

I don't understand this bit. The obvious answer is yes, but I don't get it.

<>

That has been my (badly expressed) point. Our whole economy is based on oil and fossil fuels, so it's to be expected that you can't do anything without oil. Everything *is* dependent on oil.


<>

BP, Exxon, Shell, etc, have all posted gigantic profits recently. But their share prices didn't rise (as you'd normally expect), because their production volumes either didn't change, or declined. Same as the last few years. Oil companies can't keep up with demand, never mind tyre manufacturers. If there's no cheap oil, there's no cheap energy. So that means no easy economic growth.

Food prices will rise (and they have risen hugely in the last coupla years), metals prices will rise, the price of pretty much everything will rise, which will slow economic growth. Not *too* much trouble for the West, but it will probably mean starvation for some in the 3rd world. IIRC, the UN thinks available calories will drop by 5-8% in Africa in the next decade.

I think we're coming up against absolute ecological limits, not really in terms of energy, but in terms of *all* resources. We're in for interesting times.


nuclear power stations, cradle to grave

Post 14

Taff Agent of kaos

perhapse we should look to the past for our energy needs

wind mills and water mills were used for power in the past

with advances in technology what is wrong with each town having its own mill on the stream providing electricity instead of flour...a lot safer than a nuke on each corner

smiley - bat


nuclear power stations, cradle to grave

Post 15

pedro

<>

There simply wouldn't be enough.


nuclear power stations, cradle to grave

Post 16

kea ~ Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small, unregarded but very well read blue and white website

>>
I think we're coming up against absolute ecological limits, not really in terms of energy, but in terms of *all* resources. We're in for interesting times.
<<

Yes, precisely.


I'm less optimistic about the West than you. There's already alot of poor people (relative to the country they live in) in the West, and I think people will reach a point of civil and societal unrest within our lifetimes.


>>
<>

I don't understand this bit. The obvious answer is yes, but I don't get it.
<<

One of the arguments against peak oil is that there is plenty of oil left it's just harder to get at. So theoretically I accept that it's possible to get that oil, but I'm not sure that we can now that the easily accessible oil is getting so expensive. The things that might stop that from happening are all the ones mentioned, including the bit you said about absolute ecological limits smiley - ok


nuclear power stations, cradle to grave

Post 17

Taff Agent of kaos

enough what??

streams, places to put a water wheel, villages??

smiley - bat


nuclear power stations, cradle to grave

Post 18

kea ~ Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small, unregarded but very well read blue and white website

>>
<>

There simply wouldn't be enough.
<<

There would be if we used less.


nuclear power stations, cradle to grave

Post 19

pedro

<>

I don't think many people will starve to death. In the West. We might all get a bit poorer though. Getting a bit poorer in Africa means dying at 30 instead of 60 though. It sucks.

<>

About the first thing I learned doing economics was that oil wouldn't disappear, it would only get too expensive before it got replaced by something else. If oil was £400 a barrel, we'd probably have wind power already.

In fact, what do you mean about 'the arguments against peak oil'? The only arguments I know against it are that oil is inexhaustible, which is not really the common view.







nuclear power stations, cradle to grave

Post 20

pedro

<<There simply wouldn't be enough.
<<

There would be if we used less.>>

That really depends on population density. Maybe we'd all starve to death if we had the same energy production we had in the 14th century.


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