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0 pointswazoox15y ago0 comments

Yeah sure. Oil makes up 38% of global energy consumption. Fossil fuels makes about 80% of global energy consumption. Electricity is NOT a primary energy source, and basically you don't know what you're talking about.

http://en.wikipedia.org/wiki/File:2004_Worldwide_Energy_Sour...

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eru15y ago

Sorry, I should have made myself more clear: Oil is the most useful thing for driving vehicles. Apart from that, we have good substitutes for all other energy use cases, like generating electricity.

Coal and nuclear power can last for quite some time. See `Sustainable Energy without the hot air' for some numbers. (It's available online.)

We don't have the necessary capacity of say nuclear reactors ready at the moment. But that's an inconvenience of a few years at most. (Thanks for the link!)

There may be peak oil, but no reason for peak energy.

wazooxOP15y ago

At the current building rate, we'll have soon less nuclear reactors. Even with a huge building effort it very much looks like nuclear will remain more or less as is.

Then there isn't that much U 235. We'll need thorium or fusion...

The coal outlook is very unclear. Some reliable sources says it will peak in 2025, 2050, 2100 or 2150. Then we'll have much EROI because of the necessity to capture CO2.

From what I know, we'll use much less energy quite soon individually, and not much more than we do nowadays globally.

eru15y ago

Thorium, fusion or fast breeders. The biggest cost of current nuclear fission reactors is in the initial capital outlay (and regulatory uncertainty). The price of Uran is low; if the price would go up, more reserves would surely be found.

I agree, that using coal on a large scale isn't a good idea. (That includes the current scale.)

I agree with all the actuals / current data with you. I just don't see that we will need to use less energy in the long run.

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eru15y ago

Sorry, I should have made myself more clear: Oil is the most useful thing for driving vehicles. Apart from that, we have good substitutes for all other energy use cases, like generating electricity.

Coal and nuclear power can last for quite some time. See `Sustainable Energy without the hot air' for some numbers. (It's available online.)

We don't have the necessary capacity of say nuclear reactors ready at the moment. But that's an inconvenience of a few years at most. (Thanks for the link!)

There may be peak oil, but no reason for peak energy.

wazooxOP15y ago

At the current building rate, we'll have soon less nuclear reactors. Even with a huge building effort it very much looks like nuclear will remain more or less as is.

Then there isn't that much U 235. We'll need thorium or fusion...

The coal outlook is very unclear. Some reliable sources says it will peak in 2025, 2050, 2100 or 2150. Then we'll have much EROI because of the necessity to capture CO2.

From what I know, we'll use much less energy quite soon individually, and not much more than we do nowadays globally.

eru15y ago

I agree, that using coal on a large scale isn't a good idea. (That includes the current scale.)

I agree with all the actuals / current data with you. I just don't see that we will need to use less energy in the long run.

1 more reply

j / k navigate · click thread line to collapse