Friday, 7 October 2011

Solar Energy, What is Solar Energy

Solar power involves using solar cells to convert sunlight into electricity, using sunlight hitting solar thermal panels to convert sunlight to heat water or air, using sunlight hitting a parabolic mirror to heat water (producing steam), or using sunlight entering windows for passive solar heating of a building. It would be advantageous to place solar panels in the regions of highest solar radiation.[26] In the Phoenix, Arizona area, for example, the average annual solar radiation is 5.7 kW·h/(m²·day),[27] or 2.1 MW·h/(m²·yr). Electricity demand in the continental U.S. is 3.7×1012kW·h per year. Thus, at 20% efficiency, an area of approximately 3500 square miles (3% of Arizona's land area) would need to be covered with solar panels to replace all current electricity production in the US with solar power. The average solar radiation in the United States is 4.8 kW·h/(m²·day),[28] but reaches 8–9 kWh/m²/day in parts of the Southwest.

At the end of 2009, cumulative global photovoltaic (PV) installations surpassed 21 GW[6][7][8] andPV power stations are popular in Germany and Spain.[9] Solar thermal power stations operate in the USA and Spain, and the largest of these is the 354 megawatt (MW) SEGS power plant in theMojave Desert.[10]

China is increasing worldwide silicon wafer capacity for photovoltaics to 2,000 metric tons by July 2008, and over 6,000 metric tons by the end of 2010.[29] Significant international investment capital is flowing into China to support this opportunity. China is building large subsidized off-the-grid solar-powered cities in Huangbaiyu and Dongtan Eco City. Much of the design was done by Americans such as William McDonough.[30]
Reference: Wikipedia  

Energy Resources, Energy development

Tuesday, 4 October 2011

How To Make Money On EBay

There is a lot of money to be made as a seller on eBay. Thousands and thousands of sales are made each day, resulting in a lot of income for a lot of sellers. And there is still room for you if you want to get involved – whether you want to earn some par......

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Make Money Writing Simple Web Articles

What is the one thing that everyone is looking for when they go online? You’ve got it – information. And if you can supply it in all kinds of shapes and forms then you will be paid for doing so, which could lead to a whole new career as a web writer.

Of course it isn’t just online markets that need content; there are hundreds of other markets you could break into as well, including magazines, but overall it is the internet which offers the best opportunities, especially for the beginning writer.

So why should you start online when you want to earn money writing? The reason is simple – it isn’t just editors that need your work. Website owners, people with newsletters that need writing and countless others all have writing jobs that they can’t or won’t do or don’t have the time to do themselves.
Tags: Make Money Online, write articles
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Monday, 3 October 2011

HP Desktop & all-in-one PCs List

Desktop & all-in-one PCs

For home and home office

HP desktop, List of HP desktop

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HP Monitors and LCD Prices and List


Excellent picture quality in stylish designs

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List of HP Laptops & Netbook PCs

Laptops & Netbook PCs

Powerful laptops for all your mobile needs

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