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mindmetoo
Joined: 02 Feb 2004
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Posted: Tue Oct 16, 2007 10:43 pm Post subject: New energy solutions |
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Lets start this debate off from square one.
That oil production may soon decline and prices will certainly go up is surely not in dispute. The market answers this:
1) Conservation, greater efficiency
2) Substitution (beef gets to expensive, you switch to pork)
This page has a rather good analysis of ethanol (although I think it's based on corn). But it lays out many ways to look at any alternative fuel source. well-to-wheel vs pump-to-tank.
http://skeptoid.com/episodes/4051
Also one must consider if it's really a source of new energy or just an energy carrier. For example it takes a lot of energy to free hydrogen from water. The burned hydrogen only gives back, say, 30% of the energy you used to free it. There is no source of free hydrogen on earth. Oil, by contrast, doesn't take much energy to get out of the ground. It provides way more energy that the energy needed to pump it out, refine it, ship it, etc. A hydrogen economy is really a nuclear/coal/wind economy.
An unfettered market will eventually solve the problem. Regulations and NIMBY can hinder the problem. |
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Juregen
Joined: 30 May 2006
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Posted: Wed Oct 17, 2007 6:31 pm Post subject: |
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I have a friend who has invested his entire capital in creating a factory to make Bio diesel from rapeseed.
I really see a future for crops that are now not so profitable to become more profitable due to the fact that energy (efficient solar energy isn't it) can be gained from regular crops.
There will be a huge push for engine developers to create more versatile engines that can handle different types of "fuel".
I certainly am looking forward to these things. Nothing like a good crisis to make people do something.
That said, all energy we have on planet earth comes from the Sun. My idea is that a lot of the energy from the sun is being dispersed into space.
Wouldn't it be great if we build huge solar panels around the sun, being able to transfer that energy to earth.
It's a wild dream of mine . |
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mindmetoo
Joined: 02 Feb 2004
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Posted: Wed Oct 17, 2007 9:05 pm Post subject: |
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I think in Canada we call rape seed, or the oil from it, "canola". Sounds way better than rape seed. For my part, in short order, let's start building nuclear plants, wind, and even tidal energy like they use in France. Also, the USA has vast amounts of coal. The problem with coal is global warming (although I think scrubbers have mostly solved the acid rain problem). But there are carbon capture technologies. |
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Pluto
Joined: 19 Dec 2006
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Posted: Wed Oct 17, 2007 9:13 pm Post subject: |
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I saw something on the news the other day about coal power plants. They were working on sending the waste underground. I'm not sure how far advanced that technology is at the moment. Sending the emissions underground underground as opposed as into the air seems like an interesting idea though. |
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mindmetoo
Joined: 02 Feb 2004
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Posted: Thu Oct 18, 2007 4:37 am Post subject: |
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Pluto wrote: |
I saw something on the news the other day about coal power plants. They were working on sending the waste underground. I'm not sure how far advanced that technology is at the moment. Sending the emissions underground underground as opposed as into the air seems like an interesting idea though. |
http://en.wikipedia.org/wiki/Carbon_capture_and_storage
Carbon capture. |
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Pak Yu Man

Joined: 02 Jun 2005 Location: The Ida galaxy
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Posted: Thu Oct 18, 2007 5:42 am Post subject: |
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What about the NOx and SOx? It's not just about CO2 |
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ontheway
Joined: 24 Aug 2005 Location: Somewhere under the rainbow...
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Posted: Thu Oct 18, 2007 7:29 am Post subject: |
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Conservation is the key to our energy problems. As I have spelled out in varous other threads, the US government (and other countries have, unfortunately, followed the US model) has subsidized malinvestment and infrastructure development that favored one type of fuel and one type of transportation and encouraged waste and not just discouraged, but prevented conservation.
We need to end all subsidies and taxes in all areas involving transportation, housing, energy, infrastructure planning, creation, development and maintenance. We need to turn the infrastructure over to private ownership, market management and market pricing.
Most of the energy used in the US and the world is wasted. Only the free market can allow us to acheive continued economic growth while reducing our energy consumption. Socialism is now destroying our economy, the environment, and our futures. |
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mindmetoo
Joined: 02 Feb 2004
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Posted: Thu Oct 18, 2007 3:42 pm Post subject: |
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Pak Yu Man wrote: |
What about the NOx and SOx? It's not just about CO2 |
I think scrubbers were the solutions. |
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mindmetoo
Joined: 02 Feb 2004
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Posted: Fri Oct 19, 2007 4:48 am Post subject: |
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ontheway wrote: |
Most of the energy used in the US and the world is wasted. Only the free market can allow us to acheive continued economic growth while reducing our energy consumption. Socialism is now destroying our economy, the environment, and our futures. |
Indeed. Whenever I hear about making bio fuel from corn I think of Soviet era farmers who used to feed their pigs government subsidized bread because it was cheaper than grain feed. Of course the bread was made from the grain. Corn is highly subsidized in the USA. Since corn is used in about 80% of food products in America, a new source of demand is going to drive up prices. But you think the government will remove the subsidy? No. Americans will pay for it twice.
If corn was priced properly, the bio fuel industry would start off properly and make bio fuel from real waste products (grass clippings, say). |
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4 months left

Joined: 07 Feb 2003
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Posted: Fri Oct 19, 2007 5:02 am Post subject: |
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Too much corn at the moment. Agreed corn ethanol is not the way to go. Brazil makes it work with sugar. The future is cellulosic ethanol that use the stalk of sugar cane or corn.
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According to US Department of Energy studies conducted by the Argonne Laboratories of the University of Chicago, one of the benefits of cellulosic ethanol is that it reduces greenhouse gas emissions (GHG) by 85% over reformulated gasoline. By contrast, starch ethanol (e.g., from corn), which most frequently uses natural gas to provide energy for the process, reduces GHG emissions by 18% to 29% over gasoline. Sugar ethanol is cheaper than corn ethanol. Cellulosic ethanol from sugarcane bagasse, reduces greenhouse gas emissions by as much as cellulosic ethanol. In both cases the waste lignin becomes fuel to provide the energy for the process with some excess to provide electricity for the grid.
Ethanol, if made from cellulose, emits 80 percent less global warming pollution than gasoline [1]
In June 2006, a U.S. Senate hearing was told that the current cost of producing cellulosic ethanol is US $2.25 per US gallon (US $0.59/litre). This is primarily due to the current poor conversion efficiency.[26] At that price it would cost about $120 to substitute a barrel of oil (42 gallons), taking into account the lower energy content of ethanol. However, the Department of Energy is optimistic and has requested a doubling of research funding. The same Senate hearing was told that the research target was to reduce the cost of production to US $1.07 per US gallon (US $0.28/litre) by 2012. |
http://en.wikipedia.org/wiki/Cellulosic_ethanol
I don't understand what natural gas is not used for fuel more. It's cleaner, it's abundant, it's found in stable countries. I was surprised to hear Boone Pickens say he has been talking about it for 15 years. |
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Tony_Balony

Joined: 12 Apr 2007
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Posted: Fri Oct 19, 2007 5:08 am Post subject: |
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mindmetoo wrote: |
ontheway wrote: |
Most of the energy used in the US and the world is wasted. Only the free market can allow us to acheive continued economic growth while reducing our energy consumption. Socialism is now destroying our economy, the environment, and our futures. |
Indeed. Whenever I hear about making bio fuel from corn I think of Soviet era farmers who used to feed their pigs government subsidized bread because it was cheaper than grain feed. Of course the bread was made from the grain. Corn is highly subsidized in the USA. Since corn is used in about 80% of food products in America, a new source of demand is going to drive up prices. But you think the government will remove the subsidy? No. Americans will pay for it twice.
If corn was priced properly, the bio fuel industry would start off properly and make bio fuel from real waste products (grass clippings, say). |
Sugar cane is a much better ethanol producer than corn but the US ag industry figured out how to put a $.53 per gallon tariff on Brazilian imports so you can add that onto the numbers you have presented here. |
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huffdaddy
Joined: 25 Nov 2005
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Posted: Fri Oct 19, 2007 5:59 am Post subject: |
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mindmetoo wrote: |
For my part, in short order, let's start building nuclear plants, wind, and even tidal energy like they use in France. |
FYI, Korea is building the two largest tidal power plants in the world as well as the largest solar power plant in the world.
http://www.iht.com/articles/2007/05/09/business/solar.php
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South Korea plans to break ground for the world's biggest solar power plant on Thursday as it tries to diversify its power sources and use cleaner energy.
The solar plant, being built in Shinan, near the southwestern tip of South Korea, is scheduled to be completed by late 2008. It will feature 109,000 rectangular solar modules that will cover a seaside plot the size of 80 football fields, engineers said Wednesday. The modules tilt on a sun-tracking system to generate up to 20 megawatts of electricity. |
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Last week, the city of Incheon, west of Seoul, said it would build the world's biggest tidal energy plant by 2014. The plan calls for connecting four islands with a 7.8-kilometer, or 4.8-mile, barrier and installing dozens of turbines that will harness the energy of powerful tidal waves.
The $1.9 billion plant will have a capacity of 812 megawatts, exceeding that of the 240-megawatt La Rance project in France, currently the world's largest operating tidal plant. It will also surpass the 254-megawatt Sihwa tidal energy project under construction on the west coast of South Korea. When it is ready in 2009, the Sihwa plant will be the world's largest. |
Anyone familiar with the west coast knows that it has some pretty massive tides. I haven't taken the time to compute the energy costs from these projects, but if it's cost effective, tidal power could be a potential gold mine for much of South Korea.
The downside of solar power:
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Electricity from a solar power plant costs seven times as much as electricity generated by nuclear or fossil-fuel power plants in South Korea, said Lee Gil Jae, president of Dongyang Engineering & Construction, which will operate the plant. |
Another article on the Sihwa plant:
http://www.iht.com/articles/2007/05/31/business/bgtidal.php |
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mindmetoo
Joined: 02 Feb 2004
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Posted: Fri Oct 19, 2007 6:02 am Post subject: |
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4 months left wrote: |
I don't understand what natural gas is not used for fuel more. It's cleaner, it's abundant, it's found in stable countries. I was surprised to hear Boone Pickens say he has been talking about it for 15 years. |
A remember a news report about a town in Michigan. The mayor was an engineer. He realized the landfills were releasing huge amounts of methane. He set up a system to capture and tap the gas, power an electrical plant, supply the town and feed excess to the grid. This little town had, at that time, this state of the art town hall. All paid for by trash gas. One of the reasons Korea is so keen on getting us to dump out food waste is I think they want to tap it for methane.
Of course there is also gas hydrates:
http://woodshole.er.usgs.gov/project-pages/hydrates/where.html |
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keane
Joined: 09 Jul 2007
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Posted: Fri Oct 19, 2007 3:20 pm Post subject: |
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4 months left wrote: |
I don't understand what natural gas is not used for fuel more. It's cleaner, it's abundant, it's found in stable countries. I was surprised to hear Boone Pickens say he has been talking about it for 15 years. |
Also headed for a peak. Later than oil, but fairly soon. I'd think of it as a transition fuel, not an answer. All fossil fuels can serve as no more than transition fuels in the long run. Best to plan with that in mind since they will all run out, don't you think? |
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mindmetoo
Joined: 02 Feb 2004
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