The cost of coal varies depending on where it comes from. This is because coal contains different chemicals that make different emmisions when it burns. For example, coal from Illinois contains a lot of sulfer. It is cheaper, because power plants have to spend more on cleaning technology to meet emmision standards so it is not in as high of demand. Illinois has a lot of coal, but most of the coal burned in Illinois is shipped in from Wyoming, because Wyoming coal doesn't contain as much sulfer.
The price of one ton of coal ranges from $39 to $56. http://www.eia.doe.gov/cneaf/coal/pa...lmar.html#spot
As for how much electricty a ton of coal can produce... That was a little harder to find. This is from yahoo answers, which isn't the most reliable source:
'the quality of coal varies widely, from 5000 to 8000 cal per gram. only about 25% of the coal heat translates into electrical output at a typical generation facility, so figure about 1.7 watts/hr per gram. In bigger units that would be 1 ton of coal can generate about 1500 kwh.'
Might have to do a bit more searching.
Hope I helped!
well i say if you think you can get away with it do this and say nothing. it will get your point across.
1 pick your nose
2 smear the bugger on the dias
3 take out a paper tissue
4 clean up the bugger with said tissue
5 throw tissue in a tissue recycle bin
6 smile at the judges
Reason:
the bugger represents poverty
the wiping on the dias represents what poverty does to the environment
the cleaning represents economic rescue to the environment
and the recyle bin is self explanatory
the smile represent hubris
Last edited by King Alboin; 10-16-2009 at 09:54 PM.
"The Intergovernmental Panel on Climate Change uses economic models that assume that the world will not run out of coal. Some IPCC scenarios show 3.4 billion tons of coal being burned just through 2100. That’s more than five times what Rutledge thinks will be possible — and a good deal higher than the WEC’s estimate for recoverable coal reserves, too. "
We will run out of coal. Forunately, the wind will blow forever. I need to send you my paper on windmills...
Power costs for coal: 7.4 cents per KWh in 2008. Wind was 8.2 cents per KWh. However, the cost for coal power went up 43% from 2007 to 2008, whereas the cost for wind power went up only 13%. Coal might be cheaper right now, but it won't be that way for long.
http://www.meic.org/energy/global_wa...es-1/wind_cost
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