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REW reports the world's biggest solar thermal tower has opened in Spain - World's Largest Solar Power Tower Commissioned. Abengoa Solar has begun commercial operations of the world's largest solar power tower plant, a 20 MW installation. The company claims that the performance of the power plant, the so-called PS20, has exceeded its design output in the wake of its three-day production and operational testing period. Located at the Solúcar Platform, near Seville, Spain, PS20 is the world's second power tower plant in commercial use and features a number of significant technological improvements with respect to its predecessor, PS10. These enhancements include a higher-efficiency receiver, various improvements in the control and operational systems, and a better thermal energy storage system. PS20 consists of a solar field made up of 1255 heliostats with a surface area of 1291 square feet each. This reflects the solar radiation it receives onto the receiver, located on the top of a 531 foot-high tower, producing steam which is converted into electricity generation by a turbine. Plant construction was carried out by Abener.

T. Boone Pickens has called off his massive wind farm project. As he put it, he didn't realize how many problems he would have with transmission.

Twenty-nine of the 50 U.S. states have established a required minimum amount of electricity generation that must come from renewable sources like wind and solar power, called a Renewable Portfolio Standard or RPS. Another five states have "renewable goals" which are considered voluntary and do not penalize utilities for not meeting the goals. The District of Columbia also has an RPS. California's utility regulator, the Public Utilities Commission, issued a report on Friday that showed that requiring a third of the power delivered in the state be made from renewable sources of energy will increase electricity retail costs by 7 percent more than having a 20 percent RPS goal. [ID:nN1275374]

Sinus infection lasting for months or years is called chronic sinusitis.Majority of the cases of acute sinusitis occurs due to failure of the acute infection to resolve.

The new system that is being developed will collect energy from ambient radio waves which are emitted from "antennas, TV masts, Wi-Fi transmitters, etc."

Bissell has come up with a wonderful, environmental friendly product called the Bissell 1400B Little Green Multi-Purpose Compact Earth-Friendly Deep Cleaner.

There are many ideas and concepts in this world that need to be put into words. Some people are better than others in getting this task accomplished. We call those people writers. In the world of eco-friendly, eco-conscious living, there are green ideas and concepts that need to be put into words.

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Vitamin b12 called cobalamine, important for vital functions in body, like maintenance. Deficiency cause malnutrition and digestion problems. Treatments including supplements, injections and vitamins regulatory measures.

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What Is Leprosy Disease? Leprosy is a chronic, granulomatous infection caused by the... According to historical records, this disease spread through the slave trade and migration routes from... In this article, we talk about the causes, symptoms, and treatment of Leprosy

Like TB, leprosy is caused by a bacterium. The bacterium is Mycobacterium Leprae. It was discovered by Armauer Hansen in Norway in 1873. This is why it is also called Hansen's disease. Although its bacterial nature was known at the time, it was not considered infectious.

Like TB, leprosy is caused by a bacterium. The bacterium is Mycobacterium Leprae. It was discovered by Armauer Hansen in Norway in 1873. This is why it is also called Hansen's disease. Although its bacterial nature was known at the time, it was not considered infectious.

How To Relieve Constipation Fast? About twelve percent of the population worldwide report constipation each year. It is characterized by undue effort and time to expel the stool. Here we discuss some useful home remedies to treat constipation. Sometimes it can be really stubborn and won't go away.

An average human being visits the toilet six times a day and stays there for about two minutes. However, attending the call of nature is not always this easy. Sometimes, a common gastrointestinal condition called constipation occurs. It becomes difficult to expel the feces. A desire to visit the washroom is not enough to physically eliminate the feces.