Duration : 0:2:34

Technorati Tags: address, america, barack, clean, climate, Congress, Economy, energy, global, jobs, obama, of, president, repower, SOTU, state, the, union, usa, warmin

In several countries with common carrier arrangements, electricity retailing arrangements make it possible for consumers to purchase green electricity (renewable electricity) from either their utility or a green power provider.

http://WERI-events.org

When energy is purchased from the electricity network, the power reaching the consumer will not necessarily be generated from green energy sources. The local utility company, electric company, or state power pool buys their electricity from electricity producers who may be generating from fossil fuel, nuclear or renewable energy sources. In many countries green energy currently provides a very small amount of electricity, generally contributing less than 2 to 5% to the overall pool. In some U.S. states, local governments have formed regional power purchasing pools using “Community Choice Aggregation” and “Solar Bonds” to achieve a 51% renewable mix or higher, such as in the City of San Francisco.

By participating in a green energy program a consumer may be having an effect on the energy sources used and ultimately might be helping to promote and expand the use of green energy. They are also making a statement to policy makers that they are willing to pay a price premium to support renewable energy. Green energy consumers either obligate the utility companies to increase the amount of green energy that they purchase from the pool (so decreasing the amount of non-green energy they purchase), or directly fund the green energy through a green power provider. If insufficient green energy sources are available, the utility must develop new ones or contract with a third party energy supplier to provide green energy, causing more to be built. However, there is no way the consumer can check whether or not the electricity bought is “green” or otherwise.

In some countries such as the Netherlands, electricity companies guarantee to buy an equal amount of ‘green power’ as is being used by their green power customers. The Dutch government exempts green power from pollution taxes, which means green power is hardly any more expensive than other power.

In the United States, one of the main problems with purchasing green energy through the electrical grid is the current centralized infrastructure that supplies the consumers electricity. This infrastructure has lead to increasingly frequent brown outs and black outs, high CO2 emissions, higher energy costs, and power quality issues . An additional $450 billion will be invested to expand this fledgling system over the next 20 years to meet increasing demand . In addition, this centralized system is now being further overtaxed with the incorporation of renewable energies such as wind, solar, and geothermal energies. Renewable resources, due to the amount of space they require, are often located in remote areas where there is a lower energy demand. The current infrastructure would make transporting this energy to high demand areas, such as urban centers, highly inefficient and in some cases impossible. In addition, despite the amount of renewable energy produced or the economic viability of such technologies only about 20 percent will be able to be incorporated into the grid. To have a more sustainable energy profile, the United States must move towards implementing changes to the electrical grid that will accommodate a mixed-fuel economy [75].

However, several initiatives are being proposed to mitigate these distribution problems. First and foremost, the most effective way to reduce USAs CO2 emissions and slow global warming is through conservation efforts. Opponents of the current US electrical grid have also advocated for decentralizing the grid. This system would increase efficiency by reducing the amount of energy lost in transmission. It would also be economically viable as it would reduce the amount of power lines that will need to be constructed in the future to keep up with demand. Merging heat and power in this system would create added benefits and help to increase its efficiency by up to 80-90%. This is a significant increase from the current fossil fuel plants which only have an efficiency of 34% .

http://PBS.ORG

A more recent concept for improving our electrical grid is to beam microwaves from Earth-orbiting satellites or the moon to directly when and where there is demand. The power would be generated from solar energy captured on the lunar surface In this system, the receivers would be broad, translucent tent-like structures that would receive microwaves and convert them to electricity. NASA said in 2000 that the technology was worth pursuing but it is still too soon to say if the technology will be cost-effective

Duration : 0:9:24

Technorati Tags: arrangements, CO2emissions, Consumers, Electricity, energies, ENERGYSOURCES, Green, Incorporation, Issues, Power, Producers, Providers, Purchasers, Quality, renewable, Retailing, SolarBonds

Duration : 0:3:3

Technorati Tags: conservastore, energy, panels, products, solar

Duration : 0:9:47

Technorati Tags: energy, renewable

Ever wonder what happens when solar panels are covered in snow?

Duration : 0:4:49

Technorati Tags: 224, blizzard, credit, energy, Jersey, KWH, mount, New, photovoltaic, pv, quick, renewable, Sharp, SREC, storm, sun, sustainability, Tax, unirac

At minimal effort and cost, “Small Solar Energy Power” System easily enables you to produce your very own power-supply sys. Amazingly or not, this technique requires no more than a weekend to get it done. Read this article right now and hear more about the benefits that it provides.

Short overview

The concept behind this “Small Solar Energy Power” System is quite simple – there are few excellent guides on the Net that demonstrate how to assemble professional Solar-Cells by using materials that can be found at any local hardware store. Choosing a guide is probably one of the most important actions you need to take; make sure it uses simple english without being too much ‘techi’, also, does it offer video tutorials, illustrations, and tech support? Anyway, here are several tips & benefits to help you better understand this topic.

Benefits

By using this highly effective solution we benefit from the following:

* Cuts down on the usage of non-renewable enr. resources.
* Increases the value of your home by thousands.
* No need to remember to switch off the lights each time we leave the room.
* No more power-interruptions.
* Extremely easy to be implemented by almost anyone.

Advice

Pulling yourself “off the grid” all at once isn’t recommended – do it gradually and slowly, use your new sys. while keeping the ‘Main-Grid’ as backup for possible extreme electricity usage.

On the bottom line

If we want to summarize the following article we can clearly say that “Small Solar Energy Power” System easily enables us to ‘erase’ our elec. expenses from our monthly budget. It wouldn’t be that hard to find other great benefits provided by this special invention, simply because it offers so many important opportunities. It is highly recommended to try it so you could truly experience the various opportunities that it brings.

Jason Gilford
http://www.articlesbase.com/diy-articles/quotsmall-solar-energy-powerquot-system–youll-be-surprised-724791.html

If you’re wondering does green tea have caffeine, the answer is “yes”, but the amount varies.  Here’s a little Q&A that can help you make good beverage choices and even find the best dietary supplements.

Does green tea contain caffeine in the same amount as black teas?

Many sources will tell you that green teas have less than black, but that is not necessarily true.  Some varieties have the same amount.  The caffeine-content of the green varieties varies from 30mg to 50mg per 8 ounce cup, more or less depending on a variety of factors.  Black teas average 47mg per cup.  So, the real answer to does green tea have caffeine equal to black varieties is “maybe”.

Does green tea contain caffeine equal to what you find in coffee or soda?

An 8 ounce cup of drip brewed coffee contains 95mg.  A 16 ounce Starbucks Cafe Latte contains 150mg and a “Grade” contains 330mg.  Sodas have differing amounts depending on the brand.  The soda with the highest caffeine content is Mountain Dew, coming in at 54mg per 12 ounces.  When your caffeine-intake gets up to 500mg per day, you are likely to start having problems, such as poor sleep, headaches and nervousness.  

Does green tea contain caffeine when you make it at home?

Brewing at home is one of the big variables.  The longer that the leaves are allowed to seep, the higher the caffeine-content becomes.  The amount also depends on the country where the leaves were grown.  Those grown in India, for example, tend to have more than others.  If you are worried about the answer to does green tea have caffeine, use a shorter brewing time.

Does green tea contain caffeine when you buy it bottled from a store?

Most of those bottled beverages don’t actually contain much tea.  So, does green tea have caffeine when it is bottled?  8 ounces of Sobe regular contains only 14mg per 8 ounces.  Of course you have to double that for a 16 ounce bottle.  The beverages with the highest caffeine-content are those energy drinks.  They claim that the “jolt” comes from green tea, ginseng and other herbs, but the stimulating effect that you get from those drinks is really due to caffeine, not herbs.  If you want to really improve your energy level, start taking a good nutritional supplement instead.

Does green tea contain caffeine when it is used in dietary supplements?

The amount that is present in the best dietary supplements is minute, less than one milligram per serving.  Numerous health benefits are believed to be associated with the antioxidants found in green and black teas.  Antioxidants are good for your health.  They protect the cells of your body from free radical damage and perform other functions.  They may help you live a longer, disease-free life. 

Now that you know the answer to does green tea have caffeine, you might want to learn about the benefits of antioxidants and other nutrients.  Everyone can benefit from an excellent nutritional supplement. If you have two minutes to spare, please take a look at my website now.

Gordon Hall
http://www.articlesbase.com/supplements-and-vitamins-articles/does-green-tea-have-caffeine-719270.html

After the meeting between President George Bush and the CEOs of the Big Three, the general public commended the dedication of the parties to make the United States’ energy quite dependent.

While there are flex fuel cars in production which can run on alternative fuels, Business Week reported that the promise of these vehicles is not what they seem to be. This reaction comes after the President held the energy meeting with the Big Three and did not invite Toyota to the party.

Business Week reported that there is a dirty secret behind the production of flex-fuel vehicles. Government policies allow car manufacturers to manufacture gas guzzlers as long as they produce flex-fuel vehicles. And in reality, majority of flex fuel vehicles already on the country’s roads are far fro being clean.

It is also reported that the Big Three produced thousands of units of flex fuel vehicles to increase their CAFE average since flex fuel cars are given very high gas mileage ratings. These flex fuel cars are impractical since most consumers have no access to alternative fuels according to Business Week. In fact, a study reveals that only one percent of flex fuel vehicles are actually using alternative fuel like E85 while for the rest of the lot, 99 percent of them are still running on petroleum gasoline.

This secret has enraged environmental watchdogs like the Sierra Club. Dan Becker, the director for Global Warming Program of the club, calls the production of flex-fuel vehicles and the hype that comes with it as a “total scam”. “The automakers are trying to shield themselves from having to make more efficient vehicles. They’re avoiding the path to cutting oil dependence, curbing global warming, saving consumers’ money, and ultimately saving Detroit from competitors like Toyota,” says Becker.

The reaction comes after the President met Rick Wagoner for General Motors, Alan Mulally for Ford, and Tom LaSorda for Chrysler to talk about energy policy. It can be remembered that the absence of Toyota in the meeting has received criticism since Toyota is in a position to provide the administration with insightful information in the production of vehicles that will support the government’s goal to reduce energy dependency on oil producing countries.

Some of the vehicles presented to the President after the said meeting are flex-fuel vehicles from the Big Three’s lineup. A General Motors model which runs on ethanol is one of the vehicles presented to President Bush as well as a plug-in hybrid from Ford and a DaimlerChrysler Jeep running on biodiesel. All these vehicles are designed to save fuel and reduce emission with the use of advance mechanical and automotive electrical components. If the government makes a step towards the expansion of the alternative fuel industry, these vehicles will surely be used to reach the administration’s “Twenty in Ten” goal.

Joe Thompson
http://www.articlesbase.com/automotive-articles/flex-fuel-cars-are-not-so-clean-124626.html

Duration : 0:4:59

Technorati Tags: CalStar, CEJA, Clean Energy Jobs Act, Doyle, Governor, Jim, JohnsonDiversey, Orion Energy, Ruud Lighting

Duration : 0:1:30

Technorati Tags: Association, Careers, control, energy, Engineering, Fluid, Green, Hydraulics, motion, national, NFPA, Pneumatics, Power, solar