Saturday, March 31, 2012

Nuclear Power Too Expensive, French Court Finds

The French Court of Auditors recently found that nuclear power, which France is a leader in, costs more than what electricity consumers in the country are charged.

Furthermore, the wind industry there has spoken up to point out that electricity from wind power is cheaper than from new nuclear.

Here’s more from Craig Morris of Renewables International:

The 446-page report, which is only available in French (PDF) and does not have an executive summary, was designed mainly to answer the question of whether “all costs are taken into account” in the pricing of nuclear power in France. The answer is no.


The study found that the cost of constructing a nuclear plant has risen from 1.07 million euros (adjusted for inflation as of 2010) per megawatt in 1978 at the Fessenheim plant on the border to Germany, which is the oldest nuclear reactor currently in operation in France, to 1.37 million euros per megawatt for the Civaux plant constructed in 2002, with the average cost of a megawatt of nuclear capacity for France’s current 58 reactors coming in at 1.25 million euros.

The nuclear industry must actually be looking back on 2002 nuclear costs with envy, though, as new costs due to new safety requirements enacted since the Fukushima disasters in Japan are bringing nuclear power costs to yet a higher level.

The estimated costs for the second EPR plant currently under construction in Flamanville comes in at 3.7 million euros per megawatt; construction began in 2006 and was to be finished this year, but completion has been delayed until 2016, and costs have risen by more than 50 percent.” (emphasis added)

“Overall, the Court estimates that a megawatt-hour of nuclear power made in France costs around 49.5 euros. As French daily Figaro reported, the costs entailed for additional safety requirements in reaction to the disaster in Fukushima will probably increase that price by another 10 percent to around 54 euros. The paper also points out that the estimation of 49.5 euros is more than 10 euros greater than what the Champsaur Commission estimated a year before; based on that estimate, the price of power was set at 42 euros per megawatt-hour, roughly a sixth below the apparent actual cost estimated by the Court of Auditors.”

The European Wind Energy Association’s response? Using its cost calculator online, EWEA projects that nuclear will cost 102 euros per megawatt-hour by 2020, onshore wind only 58 euros, and offshore wind 75 euros. Perhaps France will one day find itself where Japan is, shutting down its last nuclear reactors.



Friday, March 30, 2012

Social Innovation: The Power of Sewage

There are so many smart new social innovation technologies coming out to create renewable fuels and power supplies. The latest discovery is that sewage plants are being used to not only treat waste but to also generate electricity.

This knowhow is devised by Prof Bruce Logan, an environmental engineer specializing in water systems at Pennsylvania State University in the U.S. and his team of researchers.

Professor Logan believes that by switching sewage plants from users to generators of electricity would be especially useful in developing countries.

Professor Logan has a vision. He recognizes that there are two billion people in the world who need sanitation, including a billion who need access to clean water. By helping these regions and giving them a waste treatment system, we also need to realize that these places also need the power and the resources to keep it going, which can be a drain on the community. However, by providing a waste treatment facility that can also generate electricity for lighting, or charging mobile phones well that’s a social innovation game-changer!

Sewage plants are where the treatment of domestic wastewater happens, where it goes through the process of removing contaminants from the wastewater and household sewage. It includes physical, chemical, and biological processes to remove physical, chemical and biological contaminants. The end result is to produce an environmentally-safe fluid waste stream and a solid waste suitable for disposal or reuse (usually as farm fertilizers). Using advanced technology, it is now possible to re-use sewage effluent for drinking water, although till now, Singapore is the only country to implement such technology on a big enough production scale.

So, this new social innovation technology by Professor Logan works through a device that combines a fuel cell with other technologies to convert waste water treatment stations into power plants and provide the power for entire water grids. By bringing the two technologies together, Professor Logan and his team produced 0.9 kilowatt-hours of electricity per kilogram of organic waste. In contrast, sewage treatment usually consumes 1.2kWh per kilogram. Professor Logan says, “We certainly could take care of the whole water system: the treating and pumping of water, which currently requires substantial amounts of power.” This device can also be used with other types of waste to generate power.

In fact, Britain’s largest water and sewerage company, Thames Water has begun producing for the first time in Britain ready-to-burn fuel from sewage sludge (the solids found in sewage) where the sludge is dried into flakes. The flakes are transported to a purpose-built machine where they are then burnt off to generate electricity. Thames Water estimates that 16% of its electricity needs will be covered by this new type of social innovation— “poo power”— which is enough to run about 40,000 average family homes.






Thursday, March 29, 2012

Stanford’s Solar Work with Nanoshells


A team of engineers from Stanford University in the US has successfully managed to improve the performance of solar PV materials by using a nanomaterial called nanocrystalline silicon, tiny spheres of which have been used by the scientists to improve the light absorption of solar panels.


The process works on the same basis as the acoustics in the famous ‘Whispering Gallery’ in the US Capitol building.

The process involves creating tiny balls of silica and then coating them with silicon to produce lightweight spheres of silicon. They then etch away the silicon centre using hydrochloric acid.

The outer shell prevents the light from escaping after it is absorbed allowing it to circulate freely within the sphere. The longer the sphere can keep the light trapped within it, the better the absorption rate will be.

The material is more cost-efficient than existing PV material as it reduces both the amount of material needed for light absorption and the amount of time spent in manufacturing the material. In fact it uses one-twentieth the amount of crystalline silicon as conventional PV materials.

Three layers of silicon represents an absorption rate of 75 percent while even a single layer is more efficient than existing material.

Furthermore, the silicon spheres can absorb light from different angles, allowing panels to absorb more light from a variety of angles relative to the position of the sun in the sky. This could help in situations where achieving the optimal angle of the sun is not always possible.

Shanhui Fan, an Associate Professor of Electrical Engineering at Stanford, said “Nanocrystalline-silicon is a great photovoltaic material. It has a high electrical efficiency and is durable in the harsh sun. Both have been challenges for other types of thin solar films.”

Yan Yao, a post-doctoral researcher said that the material could also be used for other applications such as solar fuels and photo-detectors.






Wednesday, March 28, 2012

Top Ten Clean Tech Highlights of Applied Materials

Applied Materials is a capital equipment producer that services a number of manufacturing industries, including semiconductor, TFT LCD display, solar (thin film and crystalline), and glass. There are four primary groups of Applied Materials – Energy and Environmental Solutions, Display, Silicon Systems Group, and Service. Because of its industry, Applied Materials has been extremely involved in the clean technology sector, especially within the branches of renewable energy and energy efficient.

1 ) World’s Most Advanced Solar Research and Development Center. In 2009, Applied Materials opened the most advanced solar research and customer demonstration facility in the city of Xi’an in China. Known as the Applied Materials’ Solar Technology Center, this non-government solar energy research facility is comprised of a number of laboratories and offices over 400,000 square feet. It contains a full Applied SunFab thin film manufacturing line and a full crystalline silicon pilot process. Customers from all around the world can walk along the building with the technologists to learn all about what is available.

2 ) Applied Materials Launches New Solar Tools to Meet Increased Demand. In August of 2011, Applied Materials unveiled a brand new set of equipment to enables customers to lower their production costs and increase cell efficiency. Known as Baccini Pegaso, it covers all equipment used for screen printing metal lines that serve as the necessary highways to conduct and transport electrons out of the cells.

3 ) Applied Materials Expands their Taiwanese Solar Manufacturing Business. In March of 2010, Applied Materials opened a new Tainan Manufacturing Center in Tainan, Taiwan. This manufacturing plant will create flat panel displays as well as thin film solar photovoltaics. This is one of Applied Material’s biggest investments in the Asian continent and puts Taiwan on the map for solar equipment technology manufacturing.


4 ) Applied Materials Partners with IIT Bombay for CLEAN Lab. In April of 2011 Applied Materials partnered with IIT Bombay, a high rated university in India, to create the Chemistry Laboratory for Energy and Nanoelectronics, or CLEAN on the IIT Bombay campus. The laboratory includes the research and development of brand new materials that may be potentially used in a number of electric and renewable energy-focused applications, including next generation solar cell development. “Our goal is to serve as a catalyst for developing the critical technology needed to solve the many challenges of next-generation electronic and solar device manufacturing. Applied Materials has grown to become IIT Bombay’s most important industry collaborator in terms of the scale of research collaboration,” said IIT Bombay Professor, Devang Khakhar.


5 ) Applied Materials Demonstrates New Solar Cell Screen Printer. In September of 2011, Applied Materials released the details of a new platform for screen printing solar photovoltaic cells. “Efficiency is ultra-important. The challenge our customers have today is that we’ve reached a point where efficiency and cost reduction must happen simultaneously because the balance of system cost is becoming a larger fraction, sometimes even larger, than the cost of the modules themselves,” said Applied Material’s Dr. Mark Pinto.


6 ) Applied Materials Takes Unused Space and Turns it into a Solar Energy Solution. Applied Materials worked with SunPower to create solar power systems that offered two megawatts of energy to Applied Materials’ Sunnyvale, California corporate facilities. “This is another exciting milestone in the adoption of solar power in California,” said Mike Splinter, president and chief executive officer of Applied Materials. “More companies are realizing the wisdom of integrating solar as a non-intrusive, clean, silent form of energy generation into our businesses and communities. We’ve converted our parking lots to power plants and we encourage others to join us in making solar power a meaningful part of the energy supply.”


7 ) Applied Materials Received 2009 Environmental Protection Agency Green Power Leadership Award. In 2009, Applied Materials received the Green Power Leadership Award which is awarded by the United States Environmental Protection Agency. This award recognizes the leading purchasers of green power in the country for their continued contribution and commitment to assisting in the development and the advancement of the green power market. “Purchasing and generating green power are important elements of our long term commitment to business and global sustainability,” said senior director for Applied Materials’ Environmental Health and Safety and head of Corporate Responsibility and Sustainability, Bruce Klafter. “Through our solar installations we are demonstrating the ease of integrating clean energy into existing business campuses and proving that solar power is a sound business decision, in addition to being an important choice in combating climate change.”


8 ) Applied Materials Demonstrates Leadership in Clean Energy. IN 2007 Applied Materials expanded an agreement to buy 8,220,000 kilowatt hours of renewable energy a year from solar and wind generation sources throughout the state of California rather than getting energy from nonrenewable sources of energy. This amount equals roughly 12 percent of all the energy consumed in the Santa Clara facilities. This consumption will reduce greenhouse gas emissions by over five percent. This will make Applied Materials one of the leading purchasers of renewable energy in Silicon Valley. This purchase was done as part of the Environmental Protection Agency’s Fortune 500 Green Power Challenge. “We are committed to demonstrating practical environmental leadership in industry and the conservation of natural resources,” said Mike Splinter, president and CEO of Applied Materials. “We challenge other companies to join us in purchasing renewable power as we believe heightened demand will lower cost and increase availability for both business and consumer use.”


9 ) Applied Materials Received 2007 Environmental Leadership Award for Energy Efficiency Product Design. In June of 2007, Applied Materials received the Business Environmental Award from Acterra for its demonstration of environmental leadership. The award is known as the “Susanne Wilson Award for Pollution Prevention/Resources Conservation: Special Project” and Applied Materials won it for its design program for energy efficient semiconductor equipment. The award is commonly given to companies that seek to improve production or operation processes that reduce the consumption of resources and decrease pollution generation.


10 ) Applied Materials Partners with DuPont for Solar Cell Efficiency. In 2009, Applied Materials Partnered with product manufacturing company DuPont to collaborate on the advancement of multiple printing technology that would increase the efficiency of crystalline silicon photovoltaic solar cells. This would make photovoltaic power much more cost effective when compared to other available forms of energy.

Tuesday, March 27, 2012

The Truth About Natural Gas From Shale

Natural gas from shale is a game-changer for the United States.

It offers us greater control over our energy destiny, more jobs and government revenues, energy affordability, and reduced environmental impacts.

Unfortunately, there are myths associated with this resource and its method of extraction, which is why I would like to provide a simple explanation of how the process actually works to help demystify it.


Natural gas from dense shale rock formations has become the fastest-growing source of natural gas in the United States and could become a significant new global energy source. According to the Energy Information Administration (EIA), the U.S. has over 2500 trillion cubic feet (Tcf) of recoverable natural gas resources – 33% of which is natural gas from shale.

In just one decade, natural gas from shale has grown to around 25% of U.S. gas production and it will nearly double by 2035. This is significant as it will continue to provide the United States with reliable, affordable energy and present economic benefits to regions of the country such as Pennsylvania, Ohio and Michigan.


Although the energy industry has long known about huge gas resources trapped in shale rock formations, it is over the past decade that energy companies have combined two established technologies—hydraulic fracturing and horizontal drilling—to successfully unlock this resource.

Understandably, this natural gas boom has raised some questions and concerns about how this resource is developed, including questions about the process of hydraulic fracturing and the affects, if any, on the water table. While there is much debate and rhetoric surrounding this resource, often times a simple explanation of the process is left out of the discussion. In an effort to help raise awareness of how natural gas from shale is extracted, here is a brief explanation:

Once an area prospective for hydrocarbons has been determined, permission to drill is obtained from the landowner, a lease is signed, permits are secured, and environmental impact studies are conducted. Then seismic data is gathered to determine the best location to place the well in the shale that lies deep underground.

Once determined, a well site is constructed. From the well site, we are able to drill multiple wells from a single site to minimize land use. A drilling rig is then used to drill thousands of feet below the earth’s surface. In the Marcellus Basin, wells are typically around 8,000 feet deep – nearly 7,000 feet below the water table. The rig then drills horizontally, roughly 2,000 to 6,000 feet outward into the layer of shale rock. Many companies use several layers of steel casing and cement to form a continuous barrier between the well and the surrounding formations. In our Marcellus Basin wells located in Northeast United States, for example, Chevron uses up to 8 layers of steel casing and cement through the critical shallow section of the well that contains the water table to ensure the resource is extracted safely.

Because the gas is trapped in dense shale rock, we use the process of hydraulic fracturing to allow the gas to be extracted more easily. In hydraulic fracturing, a fluid comprised of more than 99 percent water and sand and less than 1 percent chemical additives is pumped down the well at a high pressure for a short period of time, usually a few hours. This creates a network of cracks in the shale rock that allows trapped natural gas to flow to the well. The sand helps keep the fractures open and gas flowing. This is not a new practice. It has been safely used since the 1940s in more than 1 million wells in the United States. After the shale rock has been fractured, some of the hydraulic fracturing fluid is returned to the surface through the well pipe, treated and either recycled or disposed of in regulator-approved underground water injection wells.

I support the disclosure of the chemicals used in hydraulic fracturing process. FracFocus.org is a joint website project of the Groundwater Protection Council and the Interstate Oil and Gas Compact Commission, which provides an inventory of compounds used by operators, including Chevron, in the hydraulic fracturing process in the U.S.

Once a well is completed, a pipeline is built to take the natural gas to market to be used for electricity generation, home heating and other energy needs. We then work with the landowner to remediate the drill site and restore the land with minimal impact to its original contours.

After the well site has been remediated, the remaining footprint of a producing natural gas well is typically less than one acre. It includes a well head, a gas processing unit and one or two water tanks. Natural gas wells that produce from shale rock are typically expected to have a long production life spanning many years.

As is the case in other areas of our business, our ability to operate depends on public confidence in our operations. This trust can only be earned through open, honest and timely dialogue with surrounding communities and operating at a high standard.

Natural gas from shale can provide the U.S. with reliable, affordable, cleaner and responsibly produced energy - but we must have a supportive policy framework to encourage this development. Doing so will help enhance the country’s energy security, strengthen local and state economies, and fuel job growth.




View the original article here

Monday, March 26, 2012

Turning Nuclear Power into the Hydrogen Economy



The technology for a nuclear plant to also create hydrogen fuel has been around for decades, according to IAEA member Ibrahim Khamis, Ph.D., who spoke at the 243rd National Meeting & Exposition of the American Chemical Society (ACS) on Sunday, and could help us into the long-heralded “hydrogen economy”.

The term “hydrogen economy” was first coined back in 1970 by former professor of Chemistry at Texas A&M University John Bockris during a talk he gave in 1970 at General Motors Technical Center. In short, it refers to an era where gasoline, diesel, and other fossil fuels are laid by the wayside and hydrogen powers our world.



Steam from Philippsburg nuclear power plant

Spin up to 2012, and according to Khamis, we have the technology to convert the steam created at nuclear power plants into hydrogen using a process termed electrolysis.

“There is rapidly growing interest around the world in hydrogen production using nuclear power plants as heat sources,” Khamis said. “Hydrogen production using nuclear energy could reduce dependence on oil for fueling motor vehicles and the use of coal for generating electricity. In doing so, hydrogen could have a beneficial impact on global warming, since burning hydrogen releases only water vapor and no carbon dioxide, the main greenhouse gas. There is a dramatic reduction in pollution.”

Khamis said scientists and economists at IAEA and elsewhere are working intensively to determine how current nuclear power reactors — 435 are operational worldwide — and future nuclear power reactors could be enlisted in hydrogen production.

Most current production of hydrogen comes from natural gas or coal and results in the production of carbon dioxide. However there are smaller scale electrolysis projects in use, a process which sends an electric current flowing through water, splitting the H2O molecules into hydrogen and oxygen, and is more efficient if the electric current is passed through steam.

Experts believe that existing nuclear power plants can be adapted using a low-temperature electrolysis which can take advantage of low electricity prices during the plant’s off-peak hours to produce hydrogen. For plants being designed and in construction, a more efficient, high-temperature electrolysis process can be coupled with thermochemical processes, and is currently under research and development.

Nuclear hydrogen from electrolysis of water or steam is a reality now, yet the economics need to be improved,” said Khamis.

True, economically viable possibility down the road? Or pipe dream?

Monday, March 19, 2012

No Risk Alternative Energy Funds? No Way

On the surface, investing in alternative energy funds seems like a great idea, especially since it appears as though this industry will undergo record growth in the coming years. With that being said, however, investors must proceed with a great deal of caution, since there are definitely no guarantees when dealing with this industry. Government regulations can significantly influence the long term sustainability of alternative energy and even though these methods of energy production are renewable, there is no guarantee that they will be profitable enough to make a difference. Basically, while these alternative energy funds do have a great deal of potential, they are just as likely to fail long term because many of these funds are over inflated based on industry hype.


Finding some alternative energy funds to get involved with will not be difficult, as it seems as though there are countless companies who are looking for investors. While these funds might be highly sought over, since energy is the world's largest trade, they also come with a great deal of volatility. For example, the political climate in a region can greatly influence whether or not an energy source is able to be used. Since energy in most parts of North America is regionally based, finding a buyer in a different region can be difficult if a certain type of energy production is not regulated in a certain area.


Another thing to keep in mind is that energy production is high event, which means that there is always the chance of something happening. If you invest in alternative energy funds and there is an explosion at a power plant, it will cut into your profits significantly. While these power plants would probably not do as much damage as a nuclear meltdown, the fact remains that there is always this type of risk when dealing with energy of any type. The last thing an investor needs is for a power plant to sustain damage, but it is definitely something that goes with the territory.


One aspect of alternative energy funds that many investors overlook is taxation. Since energy is something that we all need, governments know that they can tax these industries heavily. Therefore, you might see heavy taxes being levied against any fund that you get involved with in the future. In order for your energy source to be sustainable, you must keep it affordable, so even if it is your customers who are heavily taxed, you must make up the difference if you wish for your energy source to be chosen. While this is not a decision that any investors will have to make, it will impact the return that investors get.


Regulatory risks also go with the territory when dealing with alternative energy funds, as there are countless codes that must be adhered to and if any of these regulations are not being followed, it will impact the bottom line of the fund significantly. This means that investors will be relying on employees to keep their investments safe, which is much different from investing in something like gold. Energy is different from many other investments because it is a commodity that must eventually be delivered to customers, which creates more risks in itself. Rather than simply having a product that holds a certain value, there is work that must be done in order to create this value in energy, which is where the market can run into problems.


Finally, there will always be a problem with supply and demand in alternative energy funds, as there is a great deal of debate on how much is actually needed. Once again, unlike gold, you cannot simply sit on this energy and sell it later, as it cannot be stored in the same manner. That is probably where most of the questions come into play, as these funds are entirely based on the demand for that particular form of energy at any given time.


In the end, there is a great deal of room for growth in this industry, but that is no guarantee that this growth will occur. That is why this industry is so volatile, as it is young enough to have this potential, but is still too young to adequately predict the future. This uncertainty is the reason why alternative energy funds will have more questions than answers in the near future.



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