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Coronal holes are areas where the Sun's corona is darker, and colder, and has lower-density plasma than average. In this case it looks like a giant hole in the middle of the sun. These were first found when X-ray telescopes in the Skylab mission were flown above the Earth's atmosphere to reveal the structure of the corona. An extensive coronal hole rotated towards Earth recently (May 28-31, 2013). The massive coronal area is one of the largest seen in a year or more. Coronal holes are the source of strong solar wind gusts that carry solar particles out to our magnetosphere and beyond. Solar wind streams take 2-3 days to travel from the Sun to Earth, and the coronal holes in which they originate are more likely to affect Earth after they have rotated more than halfway around the visible hemisphere of the Sun, which is the case here. Watching the solar corona is like observing the patterns of clouds in the sky. They can form all sorts of shapes. In June 2012, for example, there was a big bird image. Snapped through three of NASA Solar Dynamics Observatory extreme ultraviolet filters, this current coronal hole is caused by a low density region of hot plasma. The Sun's corona, or extended outer layer, is a region of plasma that is heated to over a million degrees Celsius. As a result of thermal collisions, the particles within the inner corona have a range and distribution of speeds described by a Maxwellian distribution. The mean velocity of these particles is about 145 km/s, which is well below the solar escape velocity of 618 km/s. However, a few of the particles achieve energies sufficient to reach the terminal velocity of 400 km/s, which allows them to feed the solar wind. At the same temperature, electrons, due to their much smaller mass, reach escape velocity and build up an electric field that further accelerates ions - charged atoms - away from the Sun. The corona is one of the sources of the solar wind. Solar maximum or solar max is a normal period of

Coronal holes are areas where the Sun's corona is darker, and colder, and has lower-density plasma than average. In this case it looks like a giant hole in the middle of the sun. These were first found when X-ray telescopes in the Skylab mission were flown above the Earth's atmosphere to reveal the structure of the corona. An extensive coronal hole rotated towards Earth recently (May 28-31, 2013). The massive coronal area is one of the largest seen in a year or more. Coronal holes are the source of strong solar wind gusts that carry solar particles out to our magnetosphere and beyond. Solar wind streams take 2-3 days to travel from the Sun to Earth, and the coronal holes in which they originate are more likely to affect Earth after they have rotated more than halfway around the visible hemisphere of the Sun, which is the case here. Watching the solar corona is like observing the patterns of clouds in the sky. They can form all sorts of shapes. In June 2012, for example, there was a big bird image. Snapped through three of NASA Solar Dynamics Observatory extreme ultraviolet filters, this current coronal hole is caused by a low density region of hot plasma. The Sun's corona, or extended outer layer, is a region of plasma that is heated to over a million degrees Celsius. As a result of thermal collisions, the particles within the inner corona have a range and distribution of speeds described by a Maxwellian distribution. The mean velocity of these particles is about 145 km/s, which is well below the solar escape velocity of 618 km/s. However, a few of the particles achieve energies sufficient to reach the terminal velocity of 400 km/s, which allows them to feed the solar wind. At the same temperature, electrons, due to their much smaller mass, reach escape velocity and build up an electric field that further accelerates ions - charged atoms - away from the Sun. The corona is one of the sources of the solar wind. Solar maximum or solar max is a normal period

http://crowncapitalmngt.newsvine.com/ The German renewable energy policy will change as the country's energy infrastructure is under huge strain. The German Chancellor Angela Merkel announced her aim to curb the renewable energy subsidies so that it can afford to upgrade the power grid and lower the pressure on the rising electricity prices. According to the Associated Press, Merkel announced today a U turn in the German renewable energy policy as she announced that those installing new solar, wind or biomass power sources must "participate more in financing the cost of (electricity) grid expansion." At this point we should emphasise that in 2012, the power exports in Germany recorder the best four year performance in 2012, mainly due to the robust renewable energy industry. According to the German Federal Statistics Office (Destatis), Germany exported 66.6 terawatt hours (TWh) of electrical power. The success of the German renewable energy policy was challenged by the industry association for large corporate and industrial users in Germany, VIK. The industry association had stressed that wind and solar utilities frequently generated electricity when there was no immediate demand and that eco-friendly power was pushing gas-driven plants out of the market, although these were still needed when there wasn't any wind or solar sources. Today, Merkel announced that the expansion in renewable energy must be brought in line with that of the German grid, vowing to overhaul subsidies that total €18 billion annually after elections in September. Apart from the energy grid problems, the German magazine Spiegel had reported that the German renewable energy policy didn't foresee the upcoming cost explosion. It is well known, that solar and wind farms are a long way from being able to produce energy at prices similar to coal-fired or nuclear power plants. Moreover, there are also high costs associated with grid expansion and electricity storage facilities as we