When will the oil party be over?

Petroleum Joyride Almost Over?

The article gives a very good overview of the Oil Peak scenario.

Make your own biodiesel

http://www.biodieselwarehouse.com/

This is very industrial type of equipment, because I suppose you're going to be processing many gallons of this stuff at a time.

Wind power could do it all by itself

Map Reveals Airstream Potential (By Amit Asaravala, 02:00 AM May. 23, 2005 PT, WIRED NEWS)

Wind power could generate enough electricity to support the world's energy needs several times over, according to a new map of global wind speeds that scientists say is the first of its kind.

The map, compiled by researchers at Stanford University, shows wind speeds at more than 8,000 sites around the world. The researchers found that at least 13 percent of those sites experience winds fast enough to power a modern wind turbine. If turbines were set up in all these regions, they would generate 72 terawatts of electricity, according to the researchers.

That's more than five times the world's energy needs, which was roughly 14 terawatts in 2002, according to the U.S. Department of Energy.

The researchers readily admit that existing buildings, land rights and other obstacles would make it impossible to set up turbines in every single one of the identified regions. But they point out that even 20 percent of those sites could satisfy world energy consumption as it stands today.

Strange bedfellows

There's growing evidence that the Uzbekistan government is a very nasty regime. Over the last couple weeks there were mass protests, followed by a mass government killing of the protesters, that killed over 1000 people. There's brutal interrogation and imprisonment tactics. And, the UN is demanding an investigation. etc.

If this were Iraq, the U.S. would be harumphing up a storm and demanding regime change. Well, that's what you would believe from the statements made by our President leading to the Iraq war. Yet, in the case of Uzbekistan, we're not only sending aid to that country, we're keeping troops in the country, and we're providing shielding for them in the UN.

Karimov escapes regime change as America pursues the ‘great game’ (22 May 2005, By Trevor Royle, Diplomatic Editor)

A GLANCE at the map confirms the strategic importance of Uzbekistan, not just in regional terms but also as it is viewed from Washington.

To the south and southwest are Afghanistan and Iran, a fact which inspired President Islam Karimov to push himself into contention as a useful ally in President Bush’s war on terror.

The US operates an air base with 1000 ground troops at Khanabad outside the Uzbek capital Tashkent. The former Soviet facility is used for operations in Afghanistan, and to date the US has supplied the country with some $800 million in military and humanitarian aid.

More to the point, Uzbekistan has a key role to play in supporting Washington’s wider interests. Khanabad is part of the ring of air force bases, or “lily pads

Biodiesel from algae

The stereotype of biodiesel is that you go down to McDonalds and ask the manager to give you their used fryer grease. You take that grease and process it, and out comes glycerin and diesel. But, it seems, that's not the only way to make biodiesel.

Start-up drills for oil in algae (Published: May 20, 2005, 4:00 AM PDT, By Martin LaMonica, Staff Writer, CNET News.com)

Where most people see pond scum, Isaac Berzin sees oil--and a hedge against global warming.

Berzin is the founder and chief technology officer of GreenFuel Technologies, a Cambridge, Mass.-based start-up that has a novel approach to energy and pollution control.

Using technology licensed from a NASA project, GreenFuel builds bioreactors--in the shape of 3-meter-high glass tubes fashioned as a triangle--to grow algae. The algae are fed with sunlight, water and carbon-carrying emissions from power plants. The algae are then harvested and turned into biodiesel fuel.

Yup, good old algae.

What you'd have to do is pick (or genetically engineer) an organism that produces a high quantity of oil in their bodies. Then you grow that organism and harvest it.

And it's interesting to feed these organisms partly off the emissions from regular power plants. It diverts the carbon that would have gone into the atmosphere, and "sequesters" it in these organisms. Of course the end of life for these organisms is to become fuel, so the carbon will again be sent into the atmosphere, depending on where the biodiesel is being sent. Maybe the biodiesel would be burned at a power plant, the emissions from that power plant are already being used to grow biodiesel, and hence you'd have some of the carbon simply cycling through the organisms from which you're growing biodiesel.

Green Fuel Technologies: Using the sun as a free energy source, GreenFuel's proprietary algae bioreactor system recycles up to 86% of NOx and 40% of CO2 from smokestack emissions into renewable clean air biofuels™ competitive with conventional fossil fuel products, generating revenue by decreasing emissions. Clean, renewable, profitable. GreenFuel.

The Vanadium Redox Battery

The Vanadium Redox Battery

The Redox Flow Cell is an electrochemical system which allows energy to be stored in two solutions containing different redox couples with electrochemical potentials sufficiently separated from each other to provide an electromotive force to drive the oxidation-reduction reactions needed to charge and discharge the cell. Unlike conventional batteries, the redox flow cell stores energy in the solutions, so that the capacity of the system is determined by the size of the electrolyte tanks, while the system power is determined by the size of the cell stacks. The redox flow cell is therefore more like a rechargeable fuel cell than a battery.

These are aparently meant as large scale batteries, used in electric power distribution systems. On the web site they describe it being used by power utility companies for "load leveling" and the like.

It uses a liquid electrolyte that is charged and discharged through plates in the solution. The liquid is reusable for an indefinite period.

Commercialization is being handled through Magnum Fuel Technologies in Australia.

More on the BetaBatt nuclear battery

New 'BetaBatteries' May Provide Power for Decades

National Science Foundation press release: Silicon Solution Could Lead to a Truly Long-life Battery

Gadeken SBIR Phase I & II Awards: NSF Award No. 0320029: A Semiconductor Device for Direct and Efficient Conversion of Radioisotope Energy

May 10, 2005

Using some of the same manufacturing techniques that produce microchips, researchers have created a porous-silicon diode that may lead to improved betavoltaics. Such devices convert low levels of radiation into electricity and can have useful lives spanning several decades.

While producing as little as one-thousandth of the power of conventional chemical batteries, the new "BetaBattery" concept is more efficient and potentially less expensive than similar designs and should be easier to manufacture. If the new diode proves successful when incorporated into a finished battery, it could help power such hard-to-service, long-life systems as structural sensors on bridges, climate monitoring equipment and satellites.

The battery's staying power is tied to the enduring nature of its fuel, tritium, a hydrogen isotope that releases electrons in a process called beta decay. The porous-silicon semiconductors generate electricity by absorbing the electrons, just as a solar cell generates electricity by absorbing energy from incoming photons of light.

Supported by grants from the NSF Small Business Innovation Research (SBIR) program, a multi-disciplinary team of researchers from the University of Rochester, the University of Toronto, Rochester Institute of Technology and BetaBatt, Inc. of Houston, Texas, describe their new diode in the May 13 issue of Advanced Materials.

Researchers have been attempting to convert various types of radiation into electricity since the development of the transistor more than 50 years ago. Mastering the junctions between relatively electron-rich and electron-poor regions of semiconductor material (p-n junctions) led to many modern electronic products.

Yet, while engineers have been successful at capturing electromagnetic radiation with solar cells, the flat, thin devices have been unable to collect enough beta-decay electrons to yield a viable betavoltaic device.

The BetaBatt will not be the first battery to harness a radioactive source, or even the first to use tritium, but the new cell will have a unique advantage - the half-millimeter-thick silicon wafer into which researchers have etched a network of deep pores. This structure vastly increases the exposed surface area, creating a device that is 10 times more efficient than planar designs.

"The 3-D porous silicon configuration is excellent for absorbing essentially all the kinetic energy of the source electrons," says co-author Nazir Kherani of the University of Toronto. Instead of generating current by absorbing electrons at the outermost layer of a thin sheet, surfaces deep within these porous silicon wafers accommodate a much larger amount of incoming radiation. In early tests, nearly all electrons emitted during the tritium's beta decay were absorbed.

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.

Researchers and manufacturers have been producing porous silicon for decades, and it is commonly used for antireflective coatings, light emitting devices, and photon filters for fiber optics. However, the current research is the first patented betavoltaic application for porous silicon and the first time that 3-D p-n diodes have been created with standard semiconductor industry techniques.

"The betavoltaic and photovoltaic applications of 3-D porous silicon diodes will result in an exciting arena of additional uses for this versatile material," says co-author Philippe Fauchet of the University of Rochester.

"This is the first time that uniform p-n junctions have been made in porous silicon, which is exciting from the point of view of materials science," says Fauchet. For example, because of its characteristics and photon sensitivity, each diode pore could serve as an individual detector, potentially creating an extremely high-resolution image sensor.

"The ease of using standard semiconductor processing technology to fabricate 3-D p-n junctions was surprising," adds co-author Karl Hirschman of the Rochester Institute of Technology. That manufacturing ease is an important breakthrough for increasing production and lowering costs, and it makes the device scalable and versatile for a range of applications.

"The initial applications will be for remote or inaccessible sensors and devices where the availability of long-life power is critical," says Gadeken.

The BetaBattery may prove better suited to certain tasks than chemical batteries when power needs are limited. The structures are robust--tolerant to motion and shock, and functional from -148° Fahrenheit (-100° Celsius) to 302° F (150°C)--and may never have to be changed for the lifetime of the device.