Jophiel wrote:
gbaji wrote:
Sure. We can reduce our reliance on *oil*, but then we're more reliant on coal.
Point being, we have lots more coal and natural gas than we do crude oil.
Not sure about coal. But we've got about 3 times the reserves in terms of "time to run out based on current usage" for natural gas then we do for oil. So. Let's ignore coal and assume we're going to use gas for the moment. If we assume say a 20% increase in electricity required nationwide in order to provide power to electric cars in order to eliminate gasoline powered cars, we could cover that by doubling the current usage rate of natural gas. However, realize that this now puts the "rate of usage of reserves" much closer to parity. Also, we're currently already comsuming more natural gas then we produce, so we're importing it. Politically, what's the difference between reliance on foreign oil versus reliance on foreign natural gas? Not a whole lot.
I agree that this would improve things from an ecological impact perspective, so that's not totally bad. However, as I pointed out earlier, this may or may not significantly reduce the total numbers of barrels of crude that we import and consume. Since crude oil is multi-use, by addressing only the gasoline used by vehicles in the nation, we can only possibly reduce our overall oil consumption down to the next highest thing. Again. I don't know what that is, or how much of a reduction that represents, but it's something to be aware of when looking at the value of switching to that methodology.
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The previously linked chart includes overhead and maintence in its per kWh cost.
This site gives a cost per mWh which puts nuclear power slightly ahead in cost over coal power and, again, includes overhead and maintence. Neither, however, include the cost of building the plant (it's much more expensive to build a nuclear plant) and the second, itemized, breakout doesn't account for post 9/11 security measures. And, of course, neither account for the intangible social issues of nuclear power. Despite potential higher fuel costs, gas turbines are cheaper still than either and about 90% of the new power plants being built in the U.S. are gas-fired turbine plants.
Ok. But if you read that site, it mentioned that there are several factors that make the cost of the nuclear power higher then it really is. As the author points out, it takes longer to build and bring online a nuclear power plant. So initial cost of construction will appear more expensive due to inflation values. Also, given the specifics of the time frame during which we built nuclear power plants in the US, there's a couple of unique effects that exagerate this factor. All nuclear plants that were licenced prior to the 3 mile island incident, but had not been finished yet (due to the aforementioned longer time to build and bring online) were delayed for quite some time, and had to make changes to their plant designs. This also happened to occur during a period of some of the worst inflation rates in US history (so double damage in this case). These factors can (and do) significnatly skew the total "real" relative cost.
The raw cost of fuel to power output is roughly half as much for a nuclear plant compared to a coal plant. That's what I was initially looking at. The overhead costs for a nuclear plant are higher then for coal, but not *that much* higher. Not if we were operating in a normal environment and were actually building the things regularly. You're essentially looking at a comparison where one of the items recieved a significant one-time increase in cost that doesn't make for a fair comparison.
As you pointed out, France makes heavy use of nuclear power. A better comparison would be to figure out how much it costs *them* to run and maintain their nuclear power infrastructure in relation to us running a coal infrastructure. That should represent a better "best case" cost for both systems.
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Again, it's no where near as simple as "those dirty hippies are stopping nuclear power!". In a place like the Nuclear Power Poster Child of France, it makes sense because France is lacking in natural fossil fuels so gas or coal plants aren't practical. In the U.S., until we either run out of fossil fuels or else the government places strict penalties on using them for energy production, there's just no economic incentive to hassle with nuclear power.
Oh. I'm not disputing that. There's definately an economic rationale for going with the cheaper, easier, and already available solution. But if we're assuming we should just do that, then the entire issue of switching to hydrogen powered vehicles (or some other alternative fueled vehicle) is moot, right?
Doesn't the entire point of this thread assume that we're looking for the "best" long term solution, and not just the one that's most economically feasible right now? The same factors that are holding back things like fuel cells are those that are holding back nuclear power. It's currently easier and cheaper for us to just keep doing it the way we've been doing it. My point was that the two are related in that way. Both are similar issues with similar solutions. Both require more up front costs. However, I guess my main issue specifically in this case is that we've got all these guys pushing and pushing for alternative fuels, which requires that we spend money figuring out how to make them work, then spend more money on infrastructure to suport them, then spend more time and money implementing them nationwide. Comparatively, nuclear power is already a known commodity. It's already being used around the world. It has proven cost benefits. We don't need to research anything at all. And it's a very very obvious way to produce the electrical power needed to power virtually every single one of the alternatives to oil that are on the table right now.
When you look at it as a whole system, you almost have to link the two in some way. If the goal is to reduce the relative rate of consumption of non-renewable fuels, nuclear power is the *only* viable long term solution we have available to us. While I agree that it's still cheaper and easier for us to generate power in other ways, I'm talking about the whole "what if" argument. Well, *if* we're looking at better and longer term solutions, and *if* our goal is to reduce dependancy on foreign oil and non-renewable energy sources in general, then doesn't a discussion of nuclear powers uses come into play?