Archive for June, 2009

April 6, 2009 Science at the Theater talk: By exploiting the powers of nanotechnology and taking advantage of non-toxic, Earth-abundant materials, Berkeley Lab’s Cyrus Wadia has fabricated new solar cell devices that have the potential to be several orders of magnitude less expensive than conventional solar cells. And by mastering the chemistry of these materials—and the economics of solar energy—he envisions bringing electricity to the 1.2 billion people now living without it.

Duration : 1:19:26

Read the rest of this entry »

Technorati Tags: ,

When it comes to energy, Brazil is on its way to becoming a “global brand.” Although the United States recently outpaced Brazil in ethanol production, Brazil is by far the leader in sugar-based ethanol. Its exports are growing, and it could become a major energy supplier to the world. But what Brazil is particularly known for is its grand conversion-moving almost 40 percent of its automotive fuel from gasoline to ethanol.

Ethanol in Brazil is used in two ways: either blended, in a mix of 75 percent gasoline and 25 percent ethanol, or as pure ethanol pumped directly into a car’s fuel tank. On any given day, motorists across Brazil can stand in front of a pump and decide, based on price, whether they want to put ethanol or gasoline into their “flex fuel” car engine or whether they want to blend them.

Brazil has now achieved energy self-sufficiency. Ethanol is a part of the explanation, but it would be an error to think that it is the only one. There has been great success from drilling in Brazil’s offshore waters, and domestic oil output has increased by 40 percent since 2000-from 1.2 million barrels per day (mbd) to 1.7 mbd in 2006. This 500,000 barrel per day increase compares to 240,000 barrels per day of ethanol consumption.

How did ethanol achieve its prominent role in Brazil? It has been made possible by a series of factors: strong government support, especially after the 1973 oil shock; continual adoption of new technologies over more than a quarter century; and the cheapest production costs in the world.

The Brazilian government made a strong commitment to ethanol in the mid-1970s, in response to the first oil crisis. At that time, Brazil was importing more than 80 percent of its oil. The first oil shock had a highly detrimental effect on Brazil’s economy, influencing a significant drop in the country’s GDP growth, from almost 14 percent in 1973 to five percent in 1975. A program to stimulate domestic production of ethanol as a transport fuel was embraced as the way to reduce the country’s exposure to the world oil market.

This Brazilian effort began in 1975. It was championed as the Pro-Alcohol Program, since ethanol is known as alcohol in Brazil. The program consisted of both public and heavily subsidized private investment in ethanol production, together with governmental mandates to blend the fuel with gasoline and incentives to stimulate the sales of cars that ran on pure ethanol.

With government incentives, pure ethanol vehicles comprised 95 percent per cent of domestic auto production in 1984. By 1988, Brazil was consuming 1.7 gallons of ethanol for each gallon of gasoline.
In the mid-1980s, however, ethanol got caught in a vise. Oil prices fell sharply and, at the same time, international sugar prices rose. Ethanol was no longer as attractive as it had been for Brazilian producers and motorists.

By the end of the 1980s, a sharp fall in ethanol production, together with a prevalence of pure ethanol vehicles, led to a shortage, enraging motorists and damaging the credibility of Brazil’s ethanol industry. As consequence, ethanol cars fell from 92 percent of total vehicle sales in 1985 to less than 20 percent in 1990. At the end of the 1990s, ethanol production was back to same level that it had been in the mid-1980s. Today, almost no pure alcohol vehicles are being produced, in large part because of an innovation that has recently helped ethanol enjoy a new boom in Brazil. This is the “flex-fuel vehicle.”

The flexible fuel vehicle is a simple technological innovation that has dramatically enhanced the attractiveness of ethanol in Brazil by giving consumers choice of the fuel they can use in their cars.

After 2000, stimulated by rising oil prices and a new initiative by the government to encourage consumption of renewable fuels, the Brazilian automotive industry began to produce vehicles that could run on either ethanol or gasoline in any proportion. The previous experience with the Pro-Alcohol Program had left behind a strongly developed ethanol infrastructure, with more than 90 percent of the country’s filling stations capable of offering the fuel in its pure form.

Thanks to competitive pricing for the vehicles and for ethanol, flex-fuel vehicles have been widely adopted in Brazil. They represented 80 percent of all light cars sales in 2006, a number even more impressive considering that they only started to be marketed by the end of 2003.

Today, many Brazilian motorists make their fuel choice based on the relative price of gasoline and ethanol. And ethanol is able to compete without any subsidies against gasoline. This partly is because the government taxes gasoline at a higher rate-the gasoline tax burden is 45 percent of the final price, while the tax on ethanol is only 28 percent. But the main reason behind ethanol’s competitiveness is that Brazil’s sugar-based ethanol has the lowest production costs in the world-estimated at $1.10 per gallon.

Good weather and high land quality are certainly important factors in keeping down the costs of ethanol in Brazil, but they are not the only ones. Sugarcane has been grown in the country since the Portuguese colonization in the early 16th century, and industrial production of ethanol as a fuel goes back to the 1930s.

The 70-year old ethanol industry has invested heavily in new technologies and processes, and biotechnology is now employed to improve the quality and productivity of the sugarcane species. Integration of ethanol production with sugarcane processing has led to significant gains in efficiency and scale. For example, the cane fiber (called bagasse) is burned to generate electricity, which powers the sugar and ethanol production plant, with surplus power sold to the central grid.

The oil input in Brazilian’s ethanol production is minimal, restricted to the transporting of the sugarcane to the processing plant and moving ethanol from there to filling stations. The combination of these advantages provides Brazilian ethanol with a comfortable competitive position against oil.

The success of Brazil’s domestic industry poses an important question: Can Brazil go global with its ethanol? Brazil is already the largest ethanol exporter in the world, shipping 20 percent of it annual production abroad.

International demand for ethanol is expected to keep growing in the years to come. The main ethanol consumers outside Brazil are the United States and Europe, which are seeking to increase their domestic sources of ethanol supply. But, at least with current technology, their prospects are constrained.

High volume ethanol exports from Brazil to both the U.S. and Europe are also currently impeded by import duties, though some believe that growing demand for bio-fuels could lead to loosening of these barriers. But what happens to those barriers will be highly political, both in terms of domestic politics and trade negotiations.

If trade barriers fall, Brazil’s industry has much room to grow. Even excluding the rain forest and other protected areas, Brazil still has large areas that could be used to grow cane. Only two percent of the country’s total endowment of arable land-and ten percent of currently cultivated land-are now under sugarcane cultivation with half of that dedicated to ethanol production.

Advances in bio-technology have substantially enhanced plant types, improving their ability to thrive in a wider range of soils and climates. All this means that there is potential to expand Brazil’s ethanol production substantially and make it a major global energy supplier.

Furthermore, expansion of ethanol production in Brazil is unlikely to create the kind of food versus fuel conflicts that can be expected in other developing countries with agricultural potential.

How large a role Brazil will play in global markets will depend on many factors-the ability of the Brazilian industry to expand; the nature of fuel mandates and domestic industries of the large industrial countries; and international trade rules. Brazil’s ethanol industry will continue to play a large role in meeting Brazil’s domestic energy needs. It also has the potential to grow beyond the domestic market and to create large scale exports-and definitely make Brazil an energy brand around the world.

Daniel Yergin
http://www.articlesbase.com/environment-articles/ethanol-and-brazil-the-new-global-energy-brand-132231.html

Renewable Energies for Your Home
A practical guide to putting alternative energy into practice in the home–from pioneers in the field

Enrich your life–and your wallet–by incorporating alternative energy into your daily home life. A new TAB Green Guru Guide, this book offers authoritative, practical, and fun do-it-yourself projects and tips for greening your home.

Renewable Energies for Your Home covers biodiesel, ethanol, CNG, hydrogen, electricity, waste vegetable oil, and biomass. You will find the following information for each fuel: how it works; carbon footprint; efficiency; strengths; drawbacks; where to get it; applications; a dabblerAnd#39;s guide; and tips. Projects include solar water heaters, solar curtains, small wind turbines, a vegetable oil-powered diesel engine-generator, and more.

Read the rest of this entry »

Sunbender Build-it-Yourself Solar LED Flashlight Kit

Our newest, easy-to-build solar energy kit, the Sunbender Build-it-Yourself Solar LED Flashlight Kit is a great way for kids (or anyone) to learn about solar energy. Build your own solar powered high-power LED flashlight. Using a super-bright 1 watt LED and a flexible thin-film solar panel, you

Read the rest of this entry »

Powerfilm R-14 Rollable Solar Panel - 14 watt

This 900 mah (approx 14 watt) solar panel comes with a cable that can connect to a battery or various other devices. The internal batteries of your wireless electronics can be charged by connecting the PowerFilm Rollable Solar Panel to your device’s 12V cigarette lighter adapter by using the included RA-2 Female Cigarette Lighter Adapter. (additional adapters available separately) Size: 42 inches x 14.5 inches

Read the rest of this entry »

Solar Power Meter: Digital 2000 W/m2, 634 BTU (DBTU1300) with Batteries & Belt Pouch

This meter can measure the solar power radiated from any direction, angle or position, and can be mounted firmly on a tripod. The meter has Time Setting function, it can integrate the measured solar power of every second, calculate the average energy per hour automatically after the desired time is set up in order to get the average solar energy. Wide spectral range Cosine corrected for the angular incidence of solar Automatic transmission measurements Solar energy measurement Select either W/m 2 or BTU / (ft 2 x h) units Data hold/MAX/MIN/AVG modes Data Memory and Read function (99 sets) Auto power-off function Specifications: Display: LCD display, 4 digit Measuring Range: 2000 W/m 2 , 634 BTU / (ft 2 x h) Resolution: 0.1 Accuracy: typically within 10 W/m 2 , 3 BTU / (ft 2 x h) or5%, whichever is greatest in sunlight Spectral Response : 400 to 1000nm Angular Accuracy : Cosine corrected

Read the rest of this entry »

Benjamin Zander and his wife wrote a book entitled: “The Art of Possibility; Transforming Professional and Personal Life”. Their idea is that “you can create a passionate energy permeating The Art of Possibility that will be a true force in your life. You can make your own rules.” Their book is inspirational. You will be inspired if you buy and read it. The question is: how does this pertain to accounts receivable financing?

It’s all about attitude, enthusiasm and point of view regarding how to conduct your business. Can you make your own rules regarding how banks, commercial finance companies and other financial entities operate? Of course not. Can you make your own rules regarding how you utilize the financial recourses that are available to finance your business? Absolutely!

Here are three examples how to harness the power of accounts receivable financing sometimes with other types of financing to grow your B2B business.

Case Study One:

A Solar Energy Company that designed and supervised the installation of renewable energy systems was unable to obtain bank financing. They were one of the area’s lowest cost providers of solar panels, system design and supervision. One of their biggest assets was State Solar Tax Credits that are paid to homeowners who install the solar energy systems. An obligation from a State to a consumer is not within the definition of an account receivable. In other words, it could not be financed because it was not an obligation to a business. Using the art of possibility, the homeowners were persuaded to assign their solar tax credits to the Solar Energy Company. This transformed a consumer receivable into a commercial accounts receivable. Voila! The Solar Energy Company received accounts receivable financing it needed to grow.

Case Study Two:

An individual purchased an Importing Company that had been financed with a bank’s SBA loan. As collateral for the loan, the bank placed a UCC1 filing on the accounts receivable and inventory of the business. UCC refers to the Uniform Commercial Code in effect throughout the United States of America. In some respects, it simplifies the process of lending, selling and borrowing nationally. In other ways it is very complex. A UCC1 filing by a bank usually prevents any further financing because there is no collateral left to be financed. It is similar to a first mortgage loan on a house. If you have a 95% loan on your house, no other financing is available on the house because there is no equity to lend on. Using the art of possibility, the Importing Company was successful in convincing the bank to subordinate their UCC1 filing to another commercial lender’s UCC1. The Importing Company convinced the bank that it would be mutually beneficial to lower the bank’s UCC1 lien to a secondary position to allow a commercial finance company to offer new accounts receivable financing and inventory financing. Voila! The Importing business has a new credit line available for growth. It is now more profitable and the bank is more likely to be repaid. This is a win-win situation.

Case Study Three:

A start-up Clothing Company involved in manufacturing, distributing and designing T-shirts landed a substantial purchase order for their product. The product was to be made in China, and the Clothing Company lacked sufficient funds to pay for the costs of manufacture and distribution. Using the art of possibility, the Clothing Company obtained a letter of credit to guarantee the Chinese factory of payment, purchase order financing to pay for the T- shirts upon delivery, and accounts receivable financing to pay the purchase order company upon delivery of the goods to the customer in the US.

Accounts receivable financing can help your B2B business realize the art of possibility for growth and profits. Voila!

Copyright © 2007 Gregg Financial Services

www.greggfinancialservices.com

Gregg Elberg
http://www.articlesbase.com/finance-articles/accounts-receivable-financing-be-inspired-114354.html

There are many different natural energy sources out there, some of which are more powerful than others, whereas others are more reliable in delivering a much greater output. We shall now take a look at some of the main renewable energy sources.

Tidal energy is fast becoming a popular choice for many governments as a result of more efficient technologies, which take advantage of the energy behind incoming tides. The disadvantage of tidal energy is expense and engineering capabilities.

Related to the tidal theory, but on a much smaller scale, is a method we are beginning to see used more widely in a number of countries, especially the U.K. This alternative method uses small propeller blades under running streams. This is becoming a popular choice for renewable energy in the countryside. This technology has been around for hundreds of years in the form of watermills.

Now we shall move on to wind. On-shore and off-shore wind turbines harness their power from wind energy. Off-shore turbines are generally more reliable, as the wind out at sea is fairly constant and of a significant average strength. On-shore turbines however, can still provide the same capacity as off-shore turbines, yet finding these perfect spots is tricky, and a wind farm proposal is usually met with anger from locals.

Geothermal (ground source) energy has been making a huge presence in countries such as Iceland, Sweden, Norway, and more recently the U.K. The geothermal energy under your feet is enough to heat water to a significant degree, and this can save you money on your heating and electricity bills, depending how you wish to use this energy.

Finally, the most common natural energy source used across the globe today is solar energy. The sun contains huge amounts of energy, and it is right there above our heads. No drilling is needed, and this energy can be used just about anywhere. It is one of the most versatile energy solutions available, and with the help of a solar panel, can heat your water, or provide you with electricity.

http://www.clean-energy-ideas.com

James Bratley
http://www.articlesbase.com/environment-articles/the-different-types-of-natural-energy-114627.html

Environmentally friendly residential real estate has been around for a long time, but it was confined to a niche market of custom and small niche builders. With the success of former Vice President Al Gore’s movie “Inconvenient Truth”, the public eye is again turning to the environment. That includes homebuyers of residential real estate.

With this increase of “green” public interest, many giants within the home construction industry are now building environmentally friendly homes, but they have encountered a paradox — homebuyers want green residential real estate, but they do not wish to pay the upfront cost of having it. With the serious slowdown in new home sales, residential real estate builders are caught in the middle of the issue. It is easier for them to persuade a potential buyer to upgrade to granite countertops than to pay the upfront costs for solar panels or an energy-efficient furnace. Thus, the residential real estate builders are trying to balance between what they see as their “social obligation” to the environment and the obligation they owe their shareholders.

Jeffrey Mezger, CEO of KB Home (one of the nation’s largest homebuilders), underscores this sentiment. He points out that homebuilders cannot give away their profits. They would not be in business for long, if they did.

Some environmentally friendly features being built into some residential real estate are:

• Wood that is harvested in an environmentally friendly manner, using the Forest Stewardship Council guidelines. This can add $3,500 in cost to a $700,000 home, according to a BusinessWeek article in its February 12, 2007, issue.

• Environmentally friendly bamboo can be used for flooring.

• Front loading washers use 60 percent less water and electricity than top loading washers, though most homebuyers of residential real estate purchase such appliances themselves.

• Solar panels pay for themselves within a matter of years, but homebuilders are finding them a hard sell. The upfront costs are about $25,000 on average.

• Satellite-controlled sprinkler systems for the lawn conserves a lot more water than conventional systems.

• Decks can be made of recycled materials.

Though such features add to the upfront price of residential real estate, which most current buyers are not willing to pay, the installation of solar-electric panels by homeowners is on the rise. According to the solar energy Industry Association, use of solar panels increased last year by 75 percent. This 8,512 increase, however, represents only a fraction of the one million new homes sold across the nation in 2006.

Help for environmentally friendly residential real estate may be coming shortly from three separate sources — federal, state and local governments. It is expected that the federal and state governments will soon make subsidies available to homeowners who install solar panels. The subsidies could cut the upfront costs by half. Additionally, the building codes of many local governments are much more environmentally friendly than in the past, forcing homebuilders to include green features in their new residential real estate.

Another plus for green residential real estate are the firms that supply the construction industry. Many now offer environmentally friendly products to the homebuilding industry in volume prices, making the use of green products more cost competitive. These efforts on the part of suppliers has decreased energy consumption in new residential real estate by 30 percent per square foot since 1970.

With all of these sources encouraging environmentally friendly residential real estate, green features may soon be standard in all new homes at a fraction of current costs.

John Harris
http://www.articlesbase.com/real-estate-articles/environmentally-friendly-real-estate-may-be-a-buyers-dream-but-the-price-is-still-too-high-for-many-131028.html

“Wind power” is nothing but the successful conversion of wind energy into something other useful form, usually electricity by using wind turbines specially designed long blades, shaped such that they can capture the rushing wind and rotate providing for mechanical motion.

It was reported in the year 2005 that the world’s wind power capacity was about 60000 megawatts, constituting about 1% of the world’s present electric power usage. Although not much of this renewable energy is used in the U.S, countries like Denmark and Spain make use of this technology to contribute, in quite respectful doses, to their electrical energy needs.

Modern electric power is generated by converting the rotary motion of the turbines, caused by the wind, into electrical energy by the means of a electric generator. Wind power is used to provide electricity ranging from huge wind farms to stand-alone mills to provide energy for isolated places.

It also has to be noted that wind energy is renewable, abundant, mitigates the greenhouse effect, contributes nothing to the air pollution and is reasonable easy to produce. The cost of producing wind power has tumbled down considerably over the time. It is worth mentioning the fact the amount of wind power being produced in the U.S alone has seen growth rates of about 15 to 20%.

About 1 to 4% of the solar energy is converted into wind energy, while most of it is again absorbed by the vegetation for photosynthesis; the rest of it keeps rushing about at high altitudes and low-altitudes with varying velocities and intensities. The power of the wind is captured by letting it flow past the turbine blades which in turn induce a torque in the motor attached. The amount of power generated is proportional to the density of air, the area swept by the rotor and the cube of the speed of the wind.

Higher velocities of wind cause more power to be generated, however, all locations no not all always have winds blowing at the same speeds or velocities. It has been noticed that the power is averaged out and most of the windmills capture power in short wind bursts.

Wind power is quite a popular way to economize on the energy costs and most customers in the U.S can opt for some utility power service providers and subscribe to power from these forms of new alternative sources of energy mostly wind energy.

Barney Garcia
http://www.articlesbase.com/technology-articles/energy-resources-of-wind-power-72074.html