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Energizing Aging Nuclear Plants
Index:
Energizing Aging Nuclear Plants
Group to file complaint against TEPCO execs over cover-ups
2 German Police Hurt in Nuke Protest
U.S. fears groups may get radiation devices-report
CTI PET/CT With LSO Performs 7-Minute Whole-Body Studies at UCLA
=======================================
Energizing Aging Nuclear Plants
Framatome CEO Tom Christopher explains how retrofitting is allowing
utilities to squeeze more wattage from fewer reactors
Business Week Online Nov 12 - In March, 1979, leaking coolant at
Three Mile Island Reactor Unit 2 in Pennsylvania brought the nuclear
power plant within 30 minutes of a catastrophic meltdown. The
accident was contained, and only small amounts of radioactive gas
escaped from the damaged reactor.
The near disaster marked the beginning of the end of America's
romance with atomic fission. Yet it didn't curtail the growth of
nuclear power. Indeed, ever since Three Mile Island, efficiency
improvements have helped nuclear-power generation to grow steadily,
even as the number of functioning commercial reactors in the U.S. has
fallen to 103, from a peak of 109.
And over the next decade, nuclear output will grow an additional 10%,
says Tom Christopher, CEO of Framatome ANP Inc., the U.S. unit of
Paris-based Framatome ANP, the world's largest provider of nuclear-
engineering services. The result will be an additional 10,000
megawatts' worth of electrical capacity -- the equivalent of 8 to 10
big nuclear facilities -- without requiring the construction of a
single new plant.
The surge in capacity growth, Christopher says, is a result of the
ongoing relicensing of the nation's commercial nuclear fleet. Today's
power plants were commissioned to split atoms for not more than four
decades. Starting in the late 1990s, the Nuclear Regulatory
Commission (NRC) began to extend that term to 60 years on a plant-by-
plant basis.
The extensions have opened the door to major capital investment, much
of which is funneled through Framatome. Plants pay the engineering
company to upgrade their key systems, replacing clunky, '70s
generators, mechanical switches, and manual gauges with high-
efficiency motors and digital controls. The upshot is not just
increased output but improved safety, says Christopher, a 29-year
veteran of the nuclear-power business.
BusinessWeek Industries Editor Adam Aston met with Christopher to
learn more about the surprising growth of the nation's nuclear
capacity. Edited excerpts from their conversation follow:
Q: Why have the operating extensions made such a difference to the
industry?
A: Under NRC guidelines, the operators can submit an application for
a renewed license within three years of a facility's 30th year. The
renewal adds 20 years to the plant's original 40-year license. The
life extensions open the door to capital improvements and make it
possible for operators to take advantage of the lessons learned over
the past 30 years, and to retool and upgrade for another 30.
Q: What kinds of changes are taking place?
A: Every year, our ability to upgrade a plant improves. Productivity
gains have been so high over the past 20 years that our costs to
upgrade a plant have fallen by half. For instance, when a nuke
[plant] refuels, which is every 15 to 18 months, it's required to do
an intensive inspection. In the past, that was done by people -- even
in high-risk radioactive areas. Now in practically every instance, we
have a robot do the work. These machines can even do repairs -- they
can weld and grind. So now, labor counts for only about 30% of the
value we provide in an upgrade.
Q: What's the scale of these upgrades?
A: It depends on what the operator is willing to spend. And that, in
turn, depends on the average price of power over the plant's
remaining years. If you assume a conservative price -- say $2.50 to
$3.50 per megawatt hour -- a typical facility could justify $100
million to $200 million in spending per reactor and still recover
that over 20 years.
These refits can be big operations. Picture a Navy ship that comes
into a shipyard for a refitting, with hundreds of workers fixing and
upgrading the ship. We do the reverse. We take the shipyard to the
ship. During a fueling outage, it's not unusual for a plant to have
900 contractors on site.
Q: How do you decide what to replace?
A: The majority of U.S. plants were designed in the late '60s and
'70s. In many ways, they're crude by today's standards. But they were
designed very conservatively, with lots of redundancy, so there are
parts that don't need to be changed. Also, it varies with the unit.
If the plant is on a lake and cannot increase its discharge of
cooling water, then upgrading its generating capacity isn't an
option. If a plant is able to boost its output, then we can replace
the steam turbines and generators.
A lot of little things can also increase efficiency -- and power
output. Thousands of detectors in a nuclear plant measure things like
temperature and pressure. Each is connected to an electromechanical
control panel. You can replace those analog detectors and gauges with
microprocessors that will do more. And you can integrate the controls
into a simpler system that requires fewer engineers to monitor.
We can also reduce the house load power -- the electricity the plant
needs to operate. The cuts can be significant -- say, 40 to 60
megawatts. It's not unusual for a plant to have 3,000 motor-operated
valves. We can replace these valves and pumps with more efficient
variable-speed motors, cutting the house load by 10%. And all that
[saved] power can be sold to market.
Q: What's the net effect of these upgrades?
A: You will hear industry people say we've begun a period of pseudo-
construction of new nuclear plants in the U.S. On average, we'll see
a 10% capacity increase from the nuclear plants here, so you're
talking 10,000 megawatts in the next 10 years.
Q: What sorts of efficiency gains have we already seen?
A: Think of it in terms of capacity factor, which is the industry's
actual production as a percentage of its potential maximum. The
average for the U.S.'s 103 nuclear plants is 91%, the highest such
rating in the world. It means that a typical plant is down only 9% of
the year, or 33 to 35 days. That's remarkable, especially since, in
the early '70s, that measure was 60% or so -- around eighth place
compared with other national nuclear fleets. The improvement began
before the current round of relicensing. It's due partly to the
efforts of the industry associations to share operating practices.
Q: Yet U.S. investment in new nuclear plants and technology has all
but stalled. So where are these updated systems coming from?
A: The U.S. industry designed and constructed its plants in the '60s
and '70s. At the time, the Germans and particularly the French took
the U.S. plant designs, modified them, and then began the creation of
this large French fleet. But they built their units using mostly late
'70s and early '80s technology.
Since then, France has religiously been going back and backfitting
those plants. So when Framatome talks to a U.S. customer today, we
say, "Before you rebuild, we will be your window on the world." We
can take U.S. customers to a European plant that started with
American designs and then optimized them.
Q: Will the U.S. build any new nuclear plants?
A: Given the volatility of power prices, nuclear operators look at
the near term -- say, three to five years. In that time, is anybody
going to need a big base-load nuclear plant [i.e., a large-capacity
facility that is run continuously]? Not likely. In 5 to 10 years,
there may be a window. If so, the decision will probably be driven by
other issues, such as environmental constraints. You might see the
value of nuclear facilities rise if the world moves toward some sort
of carbon tax.
Since nuclear power emits no greenhouse gases, it could be used to
offset dirtier sources. It's impossible to predict what sort of
energy technology will be available then. Perhaps we'll have a
hydrogen economy, where nuclear power will be used to split water
into hydrogen gas.
Q: What are your thoughts on radioactive waste?
A: It's important to put the problem in context. I've seen data that
say if you take all of the spent fuel rods generated in nuclear
plants in the U.S. and stack them up, you'll have a pile that's 10
yards high and fits inside a football field. That's it.
Now, the issue is how do we deal with it. To us, Yucca Mountain [a
waste-storage facility in Nevada] is the ideal solution. And frankly,
the tax that's currently in the electricity rates -- two-tenths of a
cent per kilowatt hour -- would be more than enough to build and
operate Yucca Mountain.
Q: In 1998, Germany voted to phase out its existing nuclear plants.
Does this mean few nukes will be built abroad?
A: Some countries are backing away from nuclear energy. But the news
is more positive than negative. Finland just approved a public
referendum to build a new nuclear plant. And in the former Soviet
Union, they are determined to go back and complete a number of their
plants that were never finished.
Framatome is completing work on two plants in China. South Korea, of
course, also continues to build nuclear plants. And Japan has a
robust construction program -- maybe six or eight more plants are
planned over the next decade.
--------------------
Group to file complaint against TEPCO execs over cover-ups
IWAKI, Japan, Nov. 12 (Kyodo) - A civic group plans to file a
criminal complaint with investigative authorities against senior
officials of Tokyo Electric Power Co. (TEPCO), accusing it of various
misdemeanors in connection with covering up defects at its nuclear
power plants, the group said Tuesday.
The group told a news conference in Iwaki, Fukushima Prefecture, that
it will file the complaint -- the first such complaint against
officials of the nation's largest power company -- in mid-December.
It said it will level five charges, including fraud, destruction of
evidence and obstruction of government work, because the firm
prevented the government from properly inspecting its facilities by
concealing fractures it found in reactor shrouds.
The Ministry of Economy, Trade and Industry will not be filing a
complaint against TEPCO for violating the Electric Utility Law
because the statute of limitations has already expired.
The group said it is planning to file the complaint against a former
TEPCO vice president and four other executives.
It also said it will try to attract more people across the country to
support in the complaint by mid-December.
TEPCO began reporting the discovery of the faults only after it was
revealed in late August that during the 1980s and 1990s it had
falsified safety reports and covered up defects found during safety
checks at the Fukushima No. 1 and No. 2 nuclear plants, and at the
Kashiwazaki-Kariwa plant in Niigata Prefecture.
--------------------
2 German Police Hurt in Nuke Protest
DANNENBERG, Germany (AP) - Anti-nuclear activists staged a parade
through this north German town near a nuclear waste dump Monday, and
two police officers were injured in a skirmish with demonstrators.
Police said most of the approximately 1,000 protesters demonstrated
peacefully against a shipment of 12 containers of atomic waste that
left the reprocessing plant at La Hague, France, Monday night.
The train, with about 300 police aboard, was expected to reach the
French-German border Tuesday afternoon. The shipment is the
largest yet for dumping at Gorleben.
About 15 Greenpeace activists wearing white jumpsuits protested at
the Valognes, France, train terminal as the 1,455 ton shipment
left northern France.
In Germany, about 100 radicals in the group of protesters clashed
with police, who responded with truncheons. About 60 people also
blocked the road between the town of Dannenberg and Gorleben,
ignoring a ban on all demonstrations in a within 50 yards of the last
part of the route.
The nuclear dump at Gorleben is 75 miles southeast of Hamburg and has
been a focus of Germany's anti-nuclear lobby.
Over the weekend, farmers and anti-nuclear groups symbolically set up
at least 12 ``villages,'' with camp fires and bales of hay, near
the route and several thousand people demonstrated at Gorleben
This week's shipment is the first since last November, when
demonstrators repeatedly defied some 17,500 police to stage sit-down
protests along the route through Germany.
Those protests were smaller than demonstrations that marked the
previous transport in March 2001, the first in three years. The
previous German government had suspended shipments after leaks were
found in some containers.
Spent fuel from Germany's 19 nuclear power plants is sent to France
and Britain for reprocessing under contracts that then oblige
Germany disposed of the waste.
Last year, the government and power companies signed an agreement to
phase out nuclear power within about 20 years. Activists
hope that protesting waste shipments will force a quicker shutdown.
-------------------
U.S. fears groups may get radiation devices-report
WASHINGTON, Nov 11 (Reuters) - The Bush administration is concerned
that devices used in the former Soviet Union to measure
the effects of radiation on plants may fall into the hands of terror
groups that could use the material to make so-called dirty bombs,
The Washington Post reported on Monday.
U.S. and international nuclear experts are searching the former
Soviet republics for the lead-shielded canister devices that
contained
radioactive cesium 137 in the form of pellets or a fine powder, the
newspaper said.
Some of the tests the devices were used for were to determine farming
conditions after a nuclear attack.
The total number of experimental devices put in the countryside by
Soviet scientists during the 1970s range from 100 to 1,000, an
official from the International Atomic Energy Agency told the Post.
Only nine of the devices have been found so far.
A few ounces of cesium 137 put into a conventional explosive would
make a "dirty bomb" that could contaminate a large area with
radiation. A computer simulation showed a "dirty bomb" attack on New
York City with about 1.75 ounces (50 grams) of cesium
could spread radioactive fallout over 60 city blocks, the paper said.
Victims nearest the blast would be the initial casualties, but the
relocation of people and businesses and the cleanup could cost
tens of billions of dollars, the paper said.
----------------------
CTI PET/CT With LSO Performs 7-Minute Whole-Body Studies at UCLA
KNOXVILLE, Tenn., Nov. 12 /PRNewswire-FirstCall/ -- CTI Molecular
Imaging, Inc. (Nasdaq:CTMI), announced today that its
Reveal(TM) PET/CT scanner with LSO technology, which is produced by
its CPS Innovations unit, is routinely performing clinical
whole body patient scans in as little as 7 minutes.
According to Ronald Nutt, Ph.D., Senior Vice President of CTI and
President of CPS Innovations, the faster times are a result of the
LSO crystal technology, (lutetium oxyortho-silicate). "LSO
technology offers the best performance of any crystal material used
today and allows for true 3D image acquisition resulting in increased
image quality, and higher throughput. LSO simply sets a new
standard in PET imaging." CTI has an exclusive license to produce
LSO crystals and, accordingly, only those PET machines
manufactured by CPS Innovations have access to this proprietary
technology.
"The ability to produce high resolution whole body scans in only 7
minutes versus the traditional 30 - 45 minutes typically required
for PET scanners using BGO crystal technology reflects the tremendous
advancement being made in PET scanner technology and
molecular imaging," said Dr. Nutt. "Rapid PET/CT scans, which
integrate anatomical imaging and molecular imaging of organs and
tissues in a single study, are setting the standard for patient care.
The reduced scan time improves the quality of patient care by
reducing patient discomfort and enhancing throughput without
compromising quality."
"PET/CT is an invaluable tool in the diagnosis, staging, treatment
selection and monitoring treatment responses in a number of diseases,
particularly cancer, neurological disorders and cardiovascular
disease," said Johannes Czernin, Director of the Ahmanson Nuclear
Medicine Clinic at UCLA. Using a weight based protocol the UCLA team
routinely achieves the rapid study times since the LSO PET/CT scanner
was installed earlier this summer. "The less time that a patient has
to lie immobile, the better the image quality due to reduced motion
artifacts and the more comfortable the patient is."
-------------------------------------------------
Sandy Perle
Director, Technical
ICN Worldwide Dosimetry Service
ICN Plaza, 3300 Hyland Avenue
Costa Mesa, CA 92626
Tel:(714) 545-0100 / (800) 548-5100 Extension 2306
Fax:(714) 668-3149
E-Mail: sandyfl@earthlink.net
E-Mail: sperle@icnpharm.com
Personal Website: http://sandy-travels.com/
ICN Worldwide Dosimetry Website: http://www.dosimetry.com/
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