Coal* is the fuel of choice for electricity
production in North America because its cheap. Just dig it up out of
the ground, toss it on a freight car, use a conveyor belt to feed it into
a furnace, and you have heat which can be converted into electricity.
The main drawback of coal is that it
is dirty. Since its basically a type of flammable dirt, you end up with
lots of crap in the air, and lots of soot at the end of the process. For these
reasons, many utilities have been trying to phase out their coal power plants.
But its hard to argue with the economics of a cheap fuel and a power
plant thats already built. Advances in environmental technologies (like
scrubbers and electrostatic precipitators), as well as new furnace designs,
have improved the situation, but it is still basically a dirty method for
creating power.
Below are some statistics for coal-based power generation
in North America:
COAL |
1999 |
Generating Capacity
(MW) |
313,451 |
Net Generation (million
kWh) |
1,877,849 |
Consumption (million
short tons) |
1,041 |
Stocks (million
short tons) |
121 |
Cost (cents per
million Btus) |
125.2 |
*Includes coal,
anthracite culm, coke breeze, fine coal waste coal, bituminous gob and
lignite waste. |
The United States produced 1,094 million short tons (Mmst)
of coal in 1999, down 2.1% from record production in 1998 of 1,118 Mmst, largely
as a result of a large drop in coal exports plus lower electric power generation
demand for coal due to unseasonably mild weather and to displacement by nuclear
power. Of its total coal production, the United States consumed 1,041 Mmst
and exported (net) 49 Mmst. Wyoming was by far the leading U.S. coal-producing
state in 1999 (with 31% of the U.S. total), followed by West Virginia (14%)
and Kentucky (10%). Appalachia accounted for about 39% of total U.S. production,
mainly from underground mines. Nearly all remaining U.S. coal production came
from states west of the Mississippi River, overwhelmingly from surface mines.
For the country as a whole in 1998, 57% of coal produced was bituminous, 35%
subbituminous, and 8% lignite (brown coal).
Around 80,000 miners work in the $20 billion U.S. coal industry,
down from a peak of 700,000 in 1923, when U.S. coal production was half what
it is today.
U.S. coal demand is expected to reach 1,069.5 Mmst in 2000,
up 29 Mmst (2.8%) from 1999 U.S. coal demand. Electric utilities account for
the vast majority (around 90%) of U.S. coal consumption, with independent
power producers (IPPs) and manufacturing taking nearly all the rest. This
pattern is expected to continue through 2020 at least, with coal maintaining
a fuel cost advantage over oil and natural gas, and coal demand reaching 1,279
Mmst. As sulfur dioxide emissions standards are tightened (in 2000, for instance,
Phase 2 of CAAA takes effect), the share of low-sulfur coal in the U.S. coal
consumption mix is expected to increase. In 1999, low and medium-sulfur coals
had approximately the same share of the U.S. coal market, with high-sulfur
coal far behind.
The United States is the third largest coal exporter in the
world, behind Australia and South Africa. U.S. coal exports declined sharply
in every world region in 1999, including the major markets of Europe, Canada,
Asia, and Brazil. U.S. coal exports have fallen precipitously since 1995 due
mainly to lower world coal prices and increased competition from other coal-producing
nations (i.e., Australia, South Africa, Indonesia, Venezuela, Colombia), plus
natural gas -- especially in Europe.
(from the Energy
Information Administration)
Lets take a look at Nuclear
fuels. |