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FIRST, a brief question or
two for Mr. Mead: You wrote a rather long and warm & fuzzy
self-aggrandizing diatribe regarding Saipans future, but did not
cite a single scientific fact or reference, nor did you address any of
the data I presented. You painted a nebulous utopia based on a wind farm
of 150 megawatts. Please tell us just what that would cost unless,
of course, you plan to build it single-handedly without power tools of
any kind and donate it to Saipan. Next, please tell us how much space
it will occupy along with what will happen when the wind exceeds 130 mph.
Then tell us how long it will take to build, how heavy each turbine is,
its nominal output and how much force is required to bring it up to and
maintain speed at any particular rotation efficiency or wind vlocity.
Also please tell us why you think nuclear energy is insufficient
in power and scope. Japan now gets over 20 percent of its energy
from nuclear and France is over 85 percent and has the cleanest environment
in all of Europe. In fact, they have so much cheap, clean and safe energy
that some of it is exported to Italy, Germany and across the channel to
London! (CBS, Sixty Minutes, 4/8/07)
For the future, refrain from calling anyone a fool in public
and attempt to disparage their background in print when you have not the
slightest knowledge of what it is or of whom you speak. And you might
want to update yourself on recently published scientific information
regarding all forms of energy. From what you have written, it would appear
that you are several years behind. You discredit yourself by such unprofessional
conduct.
The question nearly everyone wants answered concerns that old bugaboo
of what to do with the nuclear waste (spent fuel) from a nuclear
power plant, the traditional Achilles heel of anything nuclear. Well,
it appears that this problem has been eradicated with the new generation
III+ and IV reactors. These new reactors use low level uranium based alloys
imbedded as tiny pebbles or thin strings in graphite or other absorbent
materials. They simply do not emit harmful radiation into the environment.
Even so, the new reactors are completely sealed modules and when the fuel
is burned out; the entire module is removed and trucked away to a reprocessing
site or a low level disposal site (national not local). Depending
on the reactor design, these fuel modules last anywhere from 5 to 30 years
before replacement is needed and since it is a completely sealed module
with no radiation, there is no exposure to the environment at all,
ever!
And just in case you are wondering about contamination of the heat transport
or other plant systems adjacent to the reactor thats not
possible in the new design either. Remember, there just isnt any
radiation outside the reactor core that could cause anything to become
radioactive. And what about the cost of final decommissioning of the plant
when yet another new and better technology comes along? The U.S. Department
of Energy mandates that every nuclear plant (even the new
ones) must join a program called the one mil program. Essentially,
it is a national insurance policy and the premium is
one tenth of one penny (one mil) per kilowatt hour of energy produced
over the lifetime of the plant. This is a savings account
with the DOE and is then used to pay the final cost of decommissioning
at no additional cost to the community.
Finally, lets take a brief look at the bottom line. What will electricity
cost you the homeowner? I know its hard to believe, but the
national average cost of electricity in the United States today is SEVEN
CENTS per kilowatt hour and were paying what? Did I hear
someone say THIRTY CENTS! Right. Or more.
There are several components that comprise the delivered cost to the consumer.
There is capitalization cost (how much to build the system). This part
of the cost to the consumer also depends on where the money comes from,
how the system is amortized and over what period of time. Then there are
the operations and maintenance, or O&M, costs. These are pretty standard
and can be calculated fairly precisely based on the equipment used. Another
cost component is the cost of fuel. And finally, there is administrative,
insurance and some other rather minor items (some of this is occasionally
mixed into operations and maintenance).
We already know what electricity costs the consumer when it comes from
a diesel based facility we have that right here, and its
pretty well killing us, too. Taken all together, the operations and maintenance
costs for just about any kind of power plant is pretty much the same.
Primarily, this consists of operating and maintaining rotating equipment
and distribution of the product. The only currently used power source
that does not have rotating equipment is solar but there are other
maintenance costs here as well. For most power facilities, this O&M
cost hovers somewhere around an average of 2.1 cents per kilowatt hour
(national operations statistics Burns & Roe and Toshiba). For
fossil fuel, this may be slightly higher because of the nature of the
equipment used to burn the fuel.
Capitalization is generally the most difficult of all to address, but
for most power facilities, this cost is generally around an average of
2.5 to 2.7 cents per kilowatt hour, assuming the cost is amortized over
at least twenty years. However, for both wind and even more so for solar,
this cost is doubled or a little more than double at todays standard.
The last major piece of the cost puzzle is fuel. For diesel, this is very
high and going up. Right now, its about 20 to 21 cents per
kilowatt hour. For other fossil fuels such as coal, its quite a
bit lower, but there are many drawbacks to using any fossil fuels. Wind
and solar both have a tremendous empirical advantage in that the fuel
is free no cost to producer or the consumer. Only problem is, that
fuel is not there all the time; in fact, solar is MIA more
than 50 percent of the time, and wind is also variable or MIA 20 to 30
percent of the time. So each of these must be supplemented with other
forms of power that DO have a fuel cost. What will that be?
Biomass? Where will we get the volume and how much will that cost? Diesel,
with its high cost? Anyway, there will be a fuel cost even to wind and
solar because of the supplementation required. Remember, 20 percent wind
power reduces reliance on other fuel costs by only 6.7 percent (UIC, 2006).
The fuel cost of a new generation III+ or IV nuclear reactor, at current
rates is about 0.011 cents per kilowatt hour; steady, reliable, safe and
clean and for a very long time.
Finally, everything added up, the bottom line for cost to the consumer
is about 30 cents per kwh for oil, 12 to 15 cents per kwh for solar, 10
to 12 cents per kwh for wind, 7 to 9 cents per kwh for coal and hydro,
and 5 to 7 cents per kwh for nuclear.
It is clear that there will be no single winning technology.
No community should even think of putting all its eggs in one power
basket, but rather a combination based on availability, economy
and useful contribution will make a winner. And there are
only three that will give this community all it deserves: wind, solar
and nuclear balanced in such as way as to provide reliability, continuous
uninterrupted service, economy of operation and space, aesthetically pleasing
and, most importantly, environmentally safe and free of greenhouse gasses
and any other emissions whatsoever.
DR. THOMAS D. ARKLE JR.
San Jose, Tinian
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