Future Energy eNews IntegrityResearchInstitute.org Oct. 9, 2006 |
1) No Hydrogen Needed - MIT tells us that existing technology can completely replace oil
2) Decarbonization - Comprehensive roadmap for the future of energy in the United States
3) Hyperspace Engine - May be dreamed up by physicists but let's keep an open mind
4) Tritium Batteries - BetaBatt, Inc. seems to be the answer to the need for a 12 year battery
5) Solar Cells for Cheap - Konarka thin electric plastic cells are flexible and now in production
6) COFE2 Amazed Audience - Conference on Future Energy gets rave reviews online everywhere
NOTE: At the
Regional Space Development Conference www.utahspace.org a
few days ago, I received a first hand
electrokinetic report of an aerospace company engineer levitating an
assymetrical capacitor with only pulsed radio waves. - TV
1) No Hydrogen Economy Needed: Existing Tech Could
Replace Fossil Fuels
Kevin Bullis, Technology Review, http://www.technologyreview.com/blog/posts.aspx?id=17381
A new road map to decarbonization says we already have
all the technology we need, we just need to spend more money to implement
it.
In our recent special report issue on energy and global
warming ("It's Not Too Late
</read_article.aspx?id=17055&ch=biztech>,"
July/August 2006), we argued that existing technologies have the potential to
dramatically reduce our production of greenhouse gases--we need not wait for
the advanced technologies of a "hydrogen economy" or exotic new types
of alternative energy.
Now researchers at City College of New York are proposing
very much the same thing in a policy discussion published in the journal Science
<http://www.sciencemag.org/cgi/content/summary/313/5791/1243>.
In the September 1 issue, they say the combined use of alternative energies for
which we already have reliable technology "could replace all fossil fuel
power plants." These sources include concentrated solar thermal energy (in
which heat from the sun creates steam to run generators), nuclear energy,
geothermal and hydroelectric plants, wind energy, photovoltaic cells, and
biomass.
They also claim that plug-in hybrid vehicles could replace
80 percent of the gasoline used in the United States. And they say the use of
hydrogen for fuel is a bad idea in most cases--that using electricity directly
in vehicles (stored in batteries) rather than to generate hydrogen is three
times cheaper.
The catch? A huge price tag. Reducing total fossil-fuel use by 70 percent would cost $200 billion per year for 30 years, outlays the City College researchers hope could be collected through a tax on carbon-dioxide emissions of $50 per ton.
For example, that cost would come to more than a $300 tax
per year on a Toyota Camry, based on figures from fueleconomy.gov
http://fueleconomy.gov/feg/findacar.htm.
2) ENERGY Enhanced: A Road Map to U.S. Decarbonization
Reuel
Shinnar1* and Francesco Citro1 Science 1 September 2006: Vol. 313. no. 5791, pp.
1243 - 1244
See HyperNotes at end of article for Web links and
additional resources.
Also see the archival list of Science's Enhanced
Perspectives and Policy Forums.
Today, 85% of the
United States' energy mix comes from carbon-rich fossil fuels: oil, natural
gas, and coal (1). With demand increasing worldwide, existing
oil reserves could peak within 20 years (2), followed by natural gas and coal. Growing
fuel use is increasing CO2 and CH4 emissions and the risk
of global warming. The United States has responded by sponsoring research into
alternative energy (3). However, because research success is not
predictable, an effective plan must be based on proven technologies. We propose
to switch our economy slowly (over 30 to 50 or more years) to nonfossil energy
sources by using proven technologies and available, expandable distribution
systems.
Available Methods
Because
all available energy technologies have limitations (see table, below), a
comprehensive plan should include several options:
Potential for fossil fuel replacement
and CO2 reduction |
||
Fossil
fuel use |
Fossil fuel replaced (%) |
CO2 emissions reduction
(%) |
Replaced by electricity from
alternative sources |
||
All coal for
electricity |
25 |
33 |
All natural
gas and petroleum for electricity |
7 |
6 |
All fossil
fuels for residential and commercial |
13 |
11 |
65% of
petroleum for transportation |
20 |
21 |
70% of
natural gas used in industry |
7 |
5 |
Replaced by syngas processes from
biomass |
||
All
petroleum 30%
of natural gas used in industry |
14 |
9 |
35% of petroleum
for transportation |
12 |
12 |
Total |
98 |
97 |
[Source (4)] |
1.
Concentrated solar thermal (CST) energy with storage, a proven technology for
electricity generation (4), can provide variable energy, to compensate
for fluctuations in demand, for a large fraction of U.S. energy needs.
2. Nuclear energy. New and safer designs, not
yet built on a commercial scale, merit construction. The implementation of a
large nuclear capacity [1000 gigawatts (GW)] requires study regarding the
long-range availability of nuclear fuel and the disposal of accumulated waste.
Present nuclear plants are used for base power, only 40% of our electricity
needs.
3. Geothermal and hydroelectric plants.
However, their total output is limited.
4. Wind. The amount of uncontrollable
electricity the grid can accept from this highly variable source is limited.
5. Solar cells. Sunlight is available for only
part of the day. Like wind power generators, solar cells lack storage capacity.
However, unlike CST, solar cells can be widely distributed.
6. Biomass. The only renewable source of
industrial petrochemical feedstocks and fuels for trucks and aviation that
cannot be provided by electricity is biomass, but only a limited amount can be
grown. Proven technologies for generating syngas by combining carbon oxides
(from partial oxidation of biomass) with H2 (from electrolysis) can
currently generate three to four times the product yield obtainable by
fermentation (5).
A discussion of decarbonization should also
include CO2 sequestration, a technology available only for new coal
power plants (6). This technology
depletes valuable fossil fuel resources and is more expensive than CST and
nuclear (4). It is doubtful that
it will play a major role in the near to midterm future.
Alternative Energy
Sources
The
magnitude of our energy problem is illustrated in the figure (below); our plan
is outlined in the table below. Electricity from alternative sources could
replace all fossil fuel power plants and all residential and commercial uses
with available technology and distribution systems, as well as 70% of the
natural gas used for industrial furnaces, steam generation, and H2
production (1, 7).
U.S. energy sources and CO2 consumption in 2003. U.S. energy consumption (total, 98.5 quadrillion Btu) and CO2 consumption (total 5772 million metric tons) . [Source (1)] |
Of the
gasoline used for private cars and light trucks, 80% can be replaced by hybrid
cars with plug-in batteries (8), the cheapest way to reduce oil
consumption. Railroads driven by electricity could probably assume 50 to 60% of
long-distance hauling. Therefore, 72% of the current use of fossil fuels can be
replaced by electricity from alternative sources and 26% by combined biomass
and H2, whereas 2% cannot be replaced at all.
Concentrated Solar
Thermal Energy
CST
technology utilizes solar collectors that concentrate solar rays on a
heat-transfer fluid able to sustain high temperatures (>800°F) (4) and raise steam for
driving turbines. This technology has been demonstrated in a 354-MW modular
plant running in the Mojave Desert for the past 20 years (4). On rainy days, the
steam power plant consumes fossil fuel, but it could use fuels made from
biomass and H2.
For CST, the collectors and storage (90% of
the investment) are comparable to the fuel plant for a conventional steam power
plant (10% of the investment). By doubling the capacity of the steam power
plant, a solar plant designed for 1-kW capacity or 24 kW hours (kWh)/day
continuous production (base load) can supply 2 kWh for 12 hours with only a 10%
incremental investment or 4 kWh for 6 hours with a 30% incremental investment,
by quadrupling the capacity of the steam plant. For coal or nuclear plants, the
increase in investment is 100 and 300%, respectively. Investment and electricity
costs for CST are given in the table (below) and compared with costs for
nuclear and various versions of coal power (6, 9, 10). CST is not
competitive yet with nuclear or coal for continuous production (base load).
However, it is more flexible in adjusting to changing needs, potentially
switching off in periods of low demand, such as at night (intermediate load).
Power can be produced according to demand almost instantaneously (load
following), which makes it cheaper than other sources of power. CST is cheaper
than new coal power plants with CO2 sequestration, even for base
power.
Electricity costs for solar thermal
compared with conventional energy sources |
||||
|
|
Cost (cents/kWh) |
||
|
Investment ($/kW installed) |
Base |
Intermediate |
Load following |
Solar
thermal: near term (10) |
4000* |
8.0 |
8.0 |
10.4 |
Solar
thermal: future (10) |
3220 |
6.2 |
6.2 |
8.6 |
Conventional
coal power plant (with scrubbers) (6) |
1200 |
4.5 |
8.0 |
13.5 |
Clean coal (6) |
1550 |
5.6 |
10 |
Cannot supply it |
Clean coal (6) (with CO2 sequestration) |
2000 |
10-11 |
14-15 |
Cannot supply it |
Nuclear (9) |
2200 |
6.0 |
10-11 |
Cannot supply it |
[Source (4)] *Explanation of estimate (4). Operated
4900 hours/year. A power plant
designed to supply, for each kW installed, 12 kWh/day of variable electricity
at instantaneous maximum rate of 4 kWh. Operated
6500 hours/year. Designed for
the same load-following capability as in . |
CST
load-following capabilities enable it to be the anchor of an alternative energy
grid that can compensate for the variable output of wind and solar cells. An
area of the desert Southwest of 15,000 square miles is sufficient to supply 50%
of our total present energy requirements (2). The transmission lines of the national
grid would have to be 100% larger at a cost of about $250 billion to $300
billion (11). The cost of the local distribution lines,
independent of the location of the power plants, would add another $850 billion
to $1000 billion (11). The nationwide power losses in transmission
and distribution, with present technology, are less than 7% (1).
Role of Biomass and H2
Of the
fossil fuels we currently use, 28% cannot be replaced by electricity but can be
replaced by hydrocarbons produced from biomass in combination with H2.
Efforts now focus on ethanol, but we prefer biomass from less-energy-intensive
agriculture such as fast-growing trees, grass, and agricultural waste. Biomass
is used to generate syngas to produce methanol or liquid hydrocarbons (12, 13). Available
technologies can produce any fuel or petrochemical from these two ingredients.
The syngas for these two processes can be made from H2 and CO or CO2.
H2 can be generated on location by electrolysis using alternative
electricity (14), and the O2
coproduced can be used to partially oxidize the biomass. This method produces
three to four times as many hydrocarbons as by fermentation to ethanol (5), which is an
advantage as there are limits to the amount of biomass that can be grown. In
our plan, biomass is converted on location in small plants, and the methanol
produced is transported to a biorefinery or to existing petrochemical plants.
Further investigation is needed to determine how much biomass can be produced
and the optimal technologies for its utilization.
H2 is not available in nature;
energy is required to generate it. Were we to generate sufficient H2
from natural gas to fuel our cars, we would double our natural gas consumption.
To produce H2 from alternative sources (by electrolysis) is an expensive
process. As the direct use of electricity is cheaper by a factor of 3, our plan
minimizes the use of H2 to uses for which electricity cannot be
substituted. We eliminate the problems of safety and transportation (14) by generating H2
on location and converting it on site in a controlled industrial environment to
conventional hydrocarbons.
Conclusions
Except
for H2, all the technologies we consider could become competitive
with crude oil at $70 per barrel. Our main objective, however, should be to
implement the best technology for eliminating dependency on fossil fuels rather
than to compete with coal or cheap oil. Investment in demonstration plants and
in large-scale implementations will be required.
Approximate cost estimates (4, 7) to replace 70% of
our fossil fuel use (including most coal) are about $170 to $200 billion per
year over 30 years. At current levels of CO2 emission, a tax of $45
to $50 per ton of CO2 would pay for the whole investment and provide
incentives for implementing renewable technologies (5).
We must start now, as our country does not
have the resources to complete this switch within a few years. The United
States must create long-range incentives (such as a CO2 tax or tax
credits) large enough to induce companies and utilities to implement proven
technologies and to provide the required infrastructure. A successful U.S.
program can set an example for the rest of the world, as many of the key
technologies are well suited to developing countries. Once the technologies are
established on a large scale and are mass-produced, these costs should go down
by a factor of 2, making them competitive and reducing the need for subsidies.
The required increase in the electric distribution system poses problems, such
as obtaining rights of way for new distribution lines, that only the federal
government can handle. There are political hurdles, but we believe they can be
overcome.
References and Notes
Supporting
Online Material
www.sciencemag.org/cgi/content/full/313/5791/1243/DC1
10.1126/science.1130338
1The authors are with the Clean Fuels
Institute, City College of New York, New York, NY 11031, USA.
*Author for correspondence. E-mail: shinnar@ccny.cuny.edu
Energy Information Administration of the U.S. Department of Energy (DOE)
Official energy statistics from the U.S. government. U.S. energy background analysis, annual reviews, outlook, and other resources,
including a glossary and Internet links.
Energy Policy in Focus
Information from the White House.
Energy 101
Background information about energy from the Clean Energy Program of the Union of
Concerned Scientists.
Energy Issues
A resource page from the Pew
Center on Global Climate Change.
Renewable Energy
Article in Wikipedia.
Renewable Energy Links
From the Climate
Ark environmental portal.
Renewable & Alternative Fuels
Resources from the Energy
Information Administration.
Energy Efficiency and Renewable Energy (EERE)
A resource from DOE. The EERE Technology Portal offers information on
topics related to energy efficiency and renewable energy.
Learning about Renewable Energy
A presentation of the DOE's National
Renewable Energy Laboratory (NREL).
Concentrating Solar Thermal Systems
An excerpt from an encyclopedia article by K. Lovegrove and A. Luzzi, made available by
the Solar Thermal Group, Australian National
University.
Concentrating Solar Power
Introduction from DOE's EERE.
Concentrating Solar Power Research
A resource page from DOE's NREL. The July 2002 report
"Fuel from the sky: Solar power's potential for Western
energy supply" is made available.
Concentrating Solar Power and Sun-Lab
A partnership between DOE's Sandia National Laboratory and NREL. An overview of CSP technologies
is provided.
CSP Technology
A presentation by the International Energy Agency's SolarPACES.
Kramer Junction Solar Power Plants
Information from Solel,
Inc.
Syngas and Fischer-Tropsch Process
Entries in Wikipedia.
Synthesis Gas
An introduction provided by the School of Engineering, Robert Gordon University, Aberdeen,
UK.
Educational Web Site on Biomass and
Bioenergy
Presented by the Bioenergy Web site of the International Energy Agency.
Biomass Program
Information from the DOE's EERE with links to Internet resources. The EERE Information Center offers presentations
on biomass topics.
Biomass Research
Information from NREL.
Biomass Energy Home Page
Provided by the Renewable Energy Resources Web site of the
Oregon Department of Energy.
Lecture Notes on Biomass
For a course on renewable energy taught by R. Kammen, Renewable and Appropriate Energy Laboratory,
University of California, Berkeley.
U.S. Energy Scenarios for the 21st
Century
July 2003 report by I. Mintzer, J. A. Leonard, and P. Schwartz, prepared for
the Pew
Center on Global Climate Change.
ìSolar Thermal Energy: The Forgotten
Energy Sourceî (4)
October 2005 article by R. Shinnar and F. Citro, made available by the Clean Fuels Institute.
1st European Summer School on Renewable
Motor Fuels
Papers from a 2005 conference, made available by RENEW.
Clean Energy Solutions
A collection of articles published July 2006 in eJournalUSA, an online
publication of the U.S. Department of State.
"A Responsible Energy Plan for
America"
An April 2005 issue paper from the Natural Resources Defense Council.
"Advanced Technology Paths to
Global Climate Stability: Energy for a Greenhouse Planet"
Review by M. I. Hoffert et al. in the
1 November 2002 issue of Science.
"Stabilization Wedges: Solving the
Climate Problem for the Next 50 Years with Current Technologies"
Review by S. Pacala and R. Socolow in the 13 August 2004
of Science, a special issue on the hydrogen economy.
"The Path Forward for Biofuels and
Biomaterials"
Review by A. J. Ragauskas et al. in the 27
January 2006 issue of Science.
Reuel Shinnar and Francesco Citro are at the Clean Fuels Institute, City College of New
York.
3)
Hyperspace Engine
IAN JOHNSTON, SCIENCE
CORRESPONDENT, New Scientist, www.newscientist.com
AN EXTRAORDINARY "hyperspace" engine that could make interstellar
space travel a reality by flying into other dimensions is being investigated by
the United States government.
The hypothetical device, which has been outlined in principle but is based on a
controversial theory about the fabric of the universe, could potentially allow
a spacecraft to travel to Mars in three hours and journey to a star 11 light
years away in just 80 days, according to a report in today's New Scientist
magazine.
The theoretical engine works by creating an intense magnetic field that,
according to ideas first developed by the late scientist Burkhard Heim in the
1950s, would produce a gravitational field and result in thrust for a
spacecraft.
Also, if a large enough magnetic field was created, the craft would slip into a
different dimension, where the speed of light is faster, allowing incredible
speeds to be reached. Switching off the magnetic field would result in the
engine reappearing in our current dimension.
The US air force has expressed an interest in the idea and scientists working
for the American Department of Energy - which has a device known as the Z
Machine that could generate the kind of magnetic fields required to drive the
engine - say they may carry out a test if the theory withstands further
scrutiny.
Professor Jochem Hauser, one of the scientists who put forward the idea, told The
Scotsman that if everything went well a working engine could be tested in
about five years.
However, Prof Hauser, a physicist at the Applied Sciences University in
Salzgitter, Germany, and a former chief of aerodynamics at the European Space
Agency, cautioned it was based on a highly controversial theory that would
require a significant change in the current understanding of the laws of
physics.
"It would be amazing. I have been working on propulsion systems for quite
a while and it would be the most amazing thing. The benefits would be almost
unlimited," he said.
"But this thing is not around the corner; we first have to prove the basic
science is correct and there are quite a few physicists who have a different
opinion.
"It's our job to prove we are right and we are working on that."
He said the engine would enable spaceships to travel to different solar
systems. "If the theory is correct then this is not science fiction, it is
science fact," Prof Hauser said.
"NASA have contacted me and next week I'm going to see someone from the
[US] air force to talk about it further, but it is at a very early stage. I
think the best-case scenario would be within the next five years [to build a
test device] if the technology works."
The US authorities' attention was attracted after Prof Hauser and an Austrian
colleague, Walter Droscher, wrote a paper called "Guidelines for a space
propulsion device based on Heim's quantum theory".
4)
Ultra-Long-Life Battery
Sebastian Rupley,
PC Magazine http://www.pcmag.com/article2/0,1895,1988193,00.asp
After years of
advances in battery technology, many of our mobile gadgets still peter out
before sunset on any given day. Several high-profile efforts are under way to
fix this pesky problem, but one of the least pursued and yet most profound
developments in energy technology is the battery that virtually never needs a
recharge. Known as the BetaBattery, this little powerhouse could provide
continuous power for years.
For now, the
technology is just for offbeat applications such as sensor networks for
monitoring traffic and for communication satellites, not for consumer
electronics. "The initial applications will be for remote or inaccessible
sensors and devices where the availability of long-life power is
critical," says Larry Gadeken, a researcher at Houston-based BetaBatt,
a company that's pioneering the technology with funding from the National
Science Foundation and assistance from several universities.
The BetaBattery
is not based on chemical reaction. Instead, it relies on the decay of the
hydrogen isotope tritium. This continuous emission of electrons is the key to
the ever-present charge in BetaBatteries. Tritium has a half-life of 12.3
years, so after 12.3 years, its output is half its original charge. At 40
years, it has one-tenth its original charge. That kind of longevity is much
longer than conventional batteries can muster.
BetaBatt is
also designing battery casings that are extremely resistant to heat and cold,
so that the batteries can power sensors and electrical equipment in the most
hostile environments—even in space. Now all we need are batteries that can
power our laptops and cell phones for years.
One of the
problems with spreading
environmental sensors far and wide is the need to power them. While most of
these sensors are designed to use as little power as possible, few can be run
solely on photovoltaics; batteries, therefore, are a necessary component. So
what can provide the best power over an extended period?
It may
be tritium. Tritium is
an isotope of hydrogen and, yes, it's radioactive. But before you click the comment
button, read on.
Tritium
batteries work by absorbing beta-decay electrons in a silicon panel similar to
traditional photovoltaics. The concept isn't new, but earlier designs were
unable to capture a sufficient number of electrons to provide a significant
amount of power. The new design, figured out by researchers from the University
of Rochester, the University of Toronto, Rochester Institute of Technology and BetaBatt, Inc. of Houston, Texas, uses a 3D
porous silicon matrix which gives it vastly increased surface area. Tritium
batteries can last for at least 12 years (the half-life of tritium) of
continuous use up to over a century, depending upon battery design -- a
significant improvement over traditional chemical batteries.
But what about
the safety?
There were a number of practical reasons for selecting tritium as
the source of energy, says co-author Larry Gadeken of BetaBatt - particularly
safety and containment.
"Tritium emits only low energy beta particles
(electrons) that can be shielded by very thin materials, such as a sheet of
paper," says Gadeken. "The hermetically-sealed, metallic BetaBattery
cases will encapsulate the entire radioactive energy source, just like a normal
battery contains its chemical source so it cannot escape."
Even if the hermetic case were to be breached,
adds Gadeken, the source material the team is developing will be a hard plastic
that incorporates tritium into its chemical structure. Unlike a chemical paste,
the plastic cannot not leak out or leach into the surrounding environment.
(The beta-decay
electrons from tritium are incredibly weak; a
layer of dead skin is sufficient to block their entry from external sources.
Swallowing tritium poses marginally more risk, but even so, tritium is
typically flushed from the system within a couple of days or weeks, and even
large doses amount to at most a couple of years worth of natural background
radiation -- or one round-trip
transatlantic flight.)
There are
undoubtedly some readers who will oppose this, no matter how limited the actual
danger; that's understandable. But in this case, the potential risk -- even in
the worst-case scenario, consumption of material from a breached container --
is so slight, and the potential rewards -- long-life sensor and monitoring
equipment -- so significant, it seems a highly worthwhile research path. I
anticipate an interesting discussion in the comments.
For more
information
Unlocking
the Code – Science, Systems and Technological Breakthroughs | Jamais Cascio http://www.worldchanging.com/archives/002725.html
See
Image of Beta Battery: http://www.pcmag.com/images/pcm_enlarge.gif
5 )
Solar Cells for Cheap
Interview by Kevin Bullis, Technology Review,
www.technologyreview.com
Not everyone gets a solar cell named after them:
but Michael Gratzel did. He says his novel technology, which promises electricity-generating
windows and low manufacturing costs, is ready for the market.
Michael Grätzel, chemistry professor at the Ecoles
Polytechniques Fédérales de Lausanne in Switzerland, is most famous for
inventing a new type of solar cell that could cost much less
than conventional photovoltaics. Now, 15 years after the first prototypes, what
he calls the dye-sensitized cell (and everyone else calls the Grätzel cell)
is in limited production by Konarka, a company based in
Lowell, MA, http://www.konarka.com/ and
will soon be more widely available.
Grätzel is now working on taking advantage of
the ability of nanocrystals to dramatically increase the efficiency of solar
cells.
Technology Review asked him about the
challenges to making cheap solar cells, and why new technologies like his,
which take much less energy to manufacture than conventional solar cells, are
so important.
Technology Review: Why has it been so
difficult to make efficient, yet inexpensive solar cells that could compete
with fossil fuels as sources of electricity?
Michael Grätzel: It's perhaps just the
way things evolved. Silicon cells were first made for [outer] space, and there
was a lot of money available so the technology that was first developed was an
expensive technology. The cell we have been developing on the other hand is
closer to photosynthesis.
TR: What is its similarity to photosynthesis?
MG: That has to do with the absorption of light.
Light generates electrons and positive carriers and they have to be
transported. In a semiconductor silicon cell, silicon material absorbs light,
but it also conducts the negative and positive charge carriers. An electric
field has to be there to separate those charges. All of this has to be done by
one material--silicon has to perform at least three functions. To do that, you
need very pure materials, and that brings the price up.
On the other hand, the dye cell uses a molecule
to absorb light. It's like chlorophyll in photosynthesis, a molecule that
absorbs light. But the chlorophyll's not involved in charge transport. It just
absorbs light and generates a charge, and then those charges are conducted by
some well-established mechanisms. That's exactly what our system does.
The real breakthrough came with the nanoscopic
particles. You have hundreds of particles stacked on top of each other in our
light harvesting system.
TR: So we have a stack of nanosized particles...
MG: ...covered with dye.
TR: The dye absorbs the light, and the electron is
transferred to the nanoparticles?
MG: Yes.
TR: The image of solar cells is changing. They
used to be ugly boxes added to roofs as an afterthought. But now we are
starting to see more attractive packaging, and even solar shingles
(see "Beyond the Solar Panel"). Will
dye-sensitized cells contribute to this evolution?
MG: Actually, that's one of our main advantages.
It's a commonly accepted fact that the photovoltaic community thinks that the
"building integrated" photovoltaics, that's where we have to go.
Putting, as you say, those "ugly" scaffolds on the roof--this is not
going to be appealing, and it's also expensive. That support structure costs a
lot of money in addition to the cells, and so it's absolutely essential to make
cells that are an integral part.
[With our cells] the normal configuration has
glass on both sides, and can be made to look like a colored glass. This could
be used as a power-producing window or skylights or building facades. The wall
or window itself is photovoltaicly active.
TR: The cells can also be made on a flexible foil.
Could we see them on tents, or built into clothing to charge iPods?
MG: Absolutely. Konarka has a program with the
military to have cells built into uniforms. You can imagine why. The soldier
has so much electrical gear and so they want to boost their batteries.
Batteries are a huge problem--the weight--and batteries cost a huge amount of
money.
Konarka has just announced a 20-megawatt facility
for a foil-backed, dye-sensitized solar cell. This would still be for roofs.
But there is a military application for tents, and Konarka is participating in
that program.
TR: When are we going to be able to buy your
cells?
MG: I expect in the next couple of years. The
production equipment is already there. Konarka has a production line that can
make up to one megawatt [of photovoltaic capacity per year].
TR: How does the efficiency of these production
cells compare with conventional silicon?
MG: With regard to the dye-cells, silicon has a
much higher efficiency; it's about twice [as much]. But when it comes to real
pickup of solar power, our cell has two advantages: it picks up [light] earlier
in the morning and later in the evening. And also the temperature effect isn't
there--our cell is as efficient at 65 degrees [Celsius] as it is at 25 degrees,
and silicon loses about 20 percent, at least.
If you put all of this together, silicon still
has an advantage, but maybe a 20 or 30 percent advantage, not a factor of two.
TR: The main advantage of your cells is cost?
MG: A factor of 4 or 5 [lower cost than silicon]
is realistic. If it's building integrated, you get additional advantages
because, say you have glass, and replace it [with our cells], you would have
had the glass cost anyway.
TR: How close is that to being competitive with
electricity from fossil fuels?
MG: People say you should be down to 50 cents per
peak watt. Our cost could be a little bit less than one dollar manufactured in
China. But it depends on where you put your solar cells. If you put them in
regions where you have a lot of sunshine, then the equation becomes different:
you get faster payback.
TR: Silicon cells have a head-start ramping up
production levels. This continues to raise the bar for new technologies, which
don't yet have economies of scale. Can a brand-new type of cell catch up to
silicon?
MG: A very reputable journal [Photon Consulting]
just published predictions for module prices for
silicon for the next 10 years, and they go up the first few years. In 10 years,
they still will be above three dollars, and that's not competitive.
Yes, people are trying to make silicon in a
different way, but there's another issue: energy payback. It takes a lot of
energy to make silicon out of sand, because sand is very stable. If you want to
sustain growth at 40-50 percent, and it takes four or five years to pay all of
the energy back [from the solar cells], then all of the energy the silicon
cells produce, and more, will be used to fuel the growth.
And mankind doesn't gain anything. Actually,
there's a negative balance. If the technology needs a long payback, then it
will deplete the world of energy resources. Unless you can bring that payback
time down to where it is with dye-cells and thin-film cells, then you cannot
sustain that big growth. And if you cannot sustain that growth, then the whole technology
cannot make a contribution.
TR: Why does producing your technology require
less energy?
MG: The silicon people need to make silicon out of
silicon oxide. We use an oxide that is already existing: titanium oxide. We
don't need to make titanium out of titanium oxide.
TR: An exciting area of basic research now is
using nanocrystals, also called quantum dots, to help get past theoretical
limits to solar-cell efficiency. Can dye-sensitized cells play a role in the
development of this approach?
MG: When you go to quantum dots, you get a chance
to actually harvest several electrons with one photon. So how do you collect
those? The quantum dots could be used instead of a [dye] sensitizer in solar
cells. When you put those on the titanium dioxide support, the quantum dot
transfers an electron very rapidly. And we have shown that to happen.
TR: You are campaigning for increased solar-cell
research funding, and not just for Grätzel cells.
MG: There's room for everybody.
I am excited that the United States is taking a
genuine interest in solar right now, after the complete neglect for 20 years.
The Carter administration supported solar, but then during the Reagan
administration, it all dropped down by a factor of 10. And labs like NREL
[National Renewable Energy Laboratory in Golden, CO] had a hard time surviving.
But I think there is going to be more funding.
For More Information
Konarka
Photovoltaic Products http://www.konarka.com/products/
America's cutting edge http://www.washingtontimes.com/business/20060412-114946-8970r.htm
- The Washington Times
The Neatest Nanotech of 2005 http://www.technologyreview.com/NanoTech/wtr_16096,303,p1.html?trk=nl
- Technology Review
Konarka Raises $20M in Funds http://www.redherring.com/Article.aspx?a=15727&hed=Konarka+Raises+%2420M+in+Funds§or=Industries&subsector=Energy
- Red Herring
6) Conference on Future Energy Amazes Audiences
Thomas
Valone, Integrity Research Institute, October 9, 2006
Meeting
Chelsea Sexton, the courageous woman who stars in the movie, "Who Killed
the Electric Car?" was a great kickoff for the Second
International Conference on Future Energy. After the movie screening, which attracted 230 people who almost overfilled the theater,
she amazed the audience by answering every electric car question that they
could throw at her, with unparalleled technical detail. She also is very
attractive and has a warm, friendly personality. Chelsea was featured
in the local Gazette, the next day, along with the two electric
vehicles that were on display in front of the Loews AMC movie theater. Her Q
& A session was recorded as well: http://www.electrifyingtimes.com/COFE/COFE_chelseasexton.wmv
The
next two days were amazing to most of the attendees, since the progressive
presentations were so diverse and unusual for any energy conference held in
this country or elsewhere. For example, we featured an opener from a Chief
Scientist at NASA Langley, Dennis Bushnell, who covered a wide range of
energy options but also information about Sea Water Agriculture. He has done some
interesting thinking about how to utilize deserts to produce energy, food and
other beneficial byproducts by tapping the world’s essentially unlimited source
of seawater. You can review his PowerPoint presentation at this link: http://www.arlingtoninstitute.org/library/related_writings_05.asp (Other
COFE2 speakers' slide presentations will also be posted shortly at the
Arlington Institute library site as well.)
Professor George Miley from the Fusion Research Lab at the University of Illinois http://fsl.ne.uiuc.edu taught us how the advantageous process of dense plasma fusion is designed and used for propulsion and electricity, along with the hurdles yet to be overcome. Glen Gordon, MD reviewed some medical information about how electromagnetic fields interact with biological cells and then ended with his story of curing himself of congestive heart failure with a magnetic pulser he designed himself. His story, and his subsequent bicycle ride across country, has been written up in a number of places. The www.EM-Probe.com he developed is the most inexpensive electrotherapy device on the market today, according to Dr. Gordon, with the "fastest risetime in the business."
Jim Dunn from the Center for Technology Commercialization in Massachusetts was gracious enough to give two lectures, one on the hydrogen challenge and the other on the solar photovoltaic industry. Dr. Thorsten Ludwig reviewed the research that is ongoing in the zero point energy Casimir Effect laboratories he has worked with.
Martin Burger from www.bluenergy.com amazed audiences with his business in Canada that uses tidal waves for electricity generation on a megawatt scale. However, we all saw a major, short-term solution to global warming with Russ George's presentation on the www.planktos.com approach to creating plankton blooms by seeding that absorb tons of carbon dioxide. His review of the progress of cold fusion was also very informative, especially when he disclosed a list of over a dozen government laboratories which have open their doors to collaboration with his research.
I gave a short and somewhat humorous presentation on Future Energy Technologies at the end of the first day, with a videotape of www.theaircar.com also leaving just enough time for the hotel staff to set up for the banquet. Dr. Tania Slawecki, from the University of Pennsylvania, was another speaker who amazed the audience with her laboratory tests of electric therapy equipment, substances, and healers who have proven anomalous abilities. The DVD of her dynamic presentation is worth reviewing more than once.
Dr. Fabrizio Pinto gave a very unusual animated presentation with state-of-the-art computer graphics to educate the group on the details surrounding Van der Waals forces (which he says journals prefer rather than "Casimir" effect). It was surprising to learn of his analysis of a 1921 journal article by Enrico Fermi that gave the metric for an electric charge in a gravitational field. Dr. Pinto's graphics showed that the solution has "drooping fieldlines" that seemed to imply electrogravity. Pal Asija, JD informed us of the correct attitudes necessary to succeed in life and in applying for a patent.
The presentation by Dr. Ted Loder on his cooperative research with IRI on the Spiral Wankel Motor was very thorough, historical and educational. The concluding comprehensive slide show by John Thomas Jr. on the Searl Effect Generator history was remarkable to say the least and was the only presentation to go into overtime, even though the computer projector failed just as he began. We are editing the DVD so it will contain all of his numerous slides and the narration.
For More Information
COFE
- Held September 2006 - Review with pictures and videos (wmv):
http://www.electrifyingtimes.com/COFE/COFE2.html
COFE
Conference photo and Overview on the News Page of our website, photo and
write-up. www.arcoscielos.com
COFE2 interesting
discussion captured on video:
http://www.electrifyingtimes.com/COFE/COFE_speakers3
Just
Returned from COFE Conference:
http://www.zpenergy.com/modules.php?name=News&file=article&sid=2051&mode=thread&order=0&thold=0
*
Provided as a public service from www.IntegrityResearchInstitute.org
where a Proceedings of the Second Conference on Future Energy
will be released in November, 2006 as well as DVDs of ALL of
the COFE2 speakers!