RGR wrote:EROEI arguments are irrelevant. When cryogenic plants in the Middle East, and the cryo tankers to transport the liquid, and the LNG terminal in the US or Japan can all be built, maintained and operated within a long term contract price of no more than $5/Mcf, EROEI doesn't matter in the least as an argument for why it won't be done.
When you consume 15% of the supply of gas in liquifying/regassifying, that's 15% of proven reserves that aren't being used as an end product.
That is a lot of gas.
RGR wrote:
And in mature basins, of COURSE you drill more wells for unconventional resources. In 1981 the US drilled some 90,000 wells. In 2006, the estimate I found was 39,000. Are you suggesting we are exponentially DECREASING then?
The trend is quite clear. More wells are drilled as smaller and smaller pockets of gas are employed to provide the same supply of gas. The smaller the pocket, the faster the depletion rate. Before long you hit a logistic brick wall where you cannot drill wells fast enough to maintain supply. Then supply falls very fast. Much faster than for oil. Canada is close to that brick wall. It is only a string of warm winters that has prevented a North American gas crisis.
RGR wrote:
EROEI in coal doesn't mean any more than it does in oil. I've been in oil and gas for some 3 decades, my father is in coal, and neither of us in some 70 years of energy related activity has ever seen a project manager stand up in a meeting and declare, " Sirs! I have increased our EROEI from 10:1 to 20:1! And it only cost $10/ton to accomplish it!!" and if someone had been dumb enough to pull this routine, they sure wouldn't be around to try it twice.
If you improved your EROEI from 10:1 to 20:1 you WILL have SAVED $10/ton and you will be promoted! Energy costs. It wasn't called EROEI, but you ALWAYS dig the high EROEI stuff first. That is simple profit. The cheap stuff is gone, and it will take more energy, more steel, more manpower more everything to get the rest out. (Iron ore price went up 60% TODAY). Coal will cost more. The demand for the extraction resources will exceed supply. Expansion will be limited supply of these resources. This is exactly the same as the oil industry.
RGR wrote:
Flakey? Supplying 300 million customers with electricity day in and day out over a country the size of Europe, and I lost power twice last year, once in a blizzard and once when a car hit the power pole at the base of the hill. Sure doesn't seem flakey to me.
A generation of underinvestment has left the grid fragile. There was a power cut a few years ago that left a large part of the NE without power for many hours. It took days to get it all back on line. There is NO WAY that it could handle the increase in power that would be needed to have an electric car fleet of 100 million vehicles without MASSIVE investment.
RGR wrote:
The same guy who invented the peak oil concept in 1956 also solved the problem in the same paper. I am always amazed how peakers want to ignore what a majority of that paper was written about, which was Hubberts solution.
Nuclear provides 7% of our energy. It would need to increase tenfold to replace our current fossil energy use. That would make the Manhattan project look like a walk in the park. Our known reserves of Uranium would be consumed in less than ten years. There are lower grade Uranium ores, but you again hit the logistic brick wall. It would take most of the global supply of iron, manpower, etc. to dig it out of the ground.
RGR wrote:
MUST decline. Have you ever read Duncans Olduvai Gorge silliness? According to him, we had peak energy in about 1979 or so. Using less ever since, per capita. Any reason why we've had growth in that time period when obviously we've been doing it with less energy and falling EROEI the entire time?
Most of the per capita energy reduction is because the population increase has been almost entirely in the third world where they use hardly ANY energy compared with us. Western energy consumption
per capita has been largely flat for 30 years, but has been rising recently.
EROEI has declined, for oil only from 100 to 1 to 10 to 1 worst case.
As long as overall supply was increasing that could be offset. Overall supply is approaching peak now, so the reduced EROEI now means reduced net energy.
Increased efficiency in end use of energy has allowed the global economy to grow. There are limits to eficiency increases available. Again, the easy ones are done first.
Read 'The Upside of Down' by Homer-Dixon.