pao d historian asked:


i have once read in time magazine about this. this move is managed by the company called Masdar. this company is trying to make a part of Abu Dhabi to be fully powered by alternative energy such as solar panels, wind mills, etc. their goal is too make their country to be fully powered by these energy sources in the future.

now, what do you think? what do you think will be the move of other first world countries, especially US? do you think time will come that the competition will just be based on alternative energy sources and not anymore on oil? comments?

i have found the article i have read and you may want to have a look

http://www.time.com/time/specials/2007/article/0,28804,1712863_1712864,00.html

Have a nice day!

London

amy =] asked:


what are some exaples of it? i know one is calculators. anything else?

what makes it better than the other types of energy?

Paula

asked:




Dashawn

siemens asked:

Wind is the fastest growing energy source in the world. Here in the US wind farms have popped up in more than 30 states, producing enough energy to power an estimated 2.5 million homes a day. Thanks to growing concerns over natural gas prices, a desire for energy independence and incentives for renewable energy production, it’s expected this trend will continue. Interviews with Eric Silagy, FPL Energy and Mike Revak, Siemens Power Generation. Footage of Horse Hollow wind farm. www.powergeneration.siemens.com

Pamela

Anthony Dempster asked:




As a source of renewable energy, wind power is one of the cleanest and greenest. Electricity generators around the world are switching to wind power, and as the cost of technology comes down many smart, environmentally conscious and money smart individuals like you and me are starting to generate their own wind power at home. In this article, I will outline the basics of wind power electricity generation.

Firstly, there is the wind which is simply air moving about. As it comes up against the propeller of the wind turbine it is forced to slow down and move around the propeller. Some of this energy is transferred to the propeller which starts to spin. The propeller is connected to a shaft which then spins inside an alternator/generator to generate the electricity. Inside the alternator/generator it is the effect of magnets moving around a piece of electrical wire that forces electrons to move through the wire — and there we have it, electricity.

In most cases the electricity is then stored in a bank of batteries, ready for use by whatever systems are connected into it. You can also setup what is known as a ‘dump load’, so that when the batteries are full the excess electricity being generated is used to heat hot water or provide some kind of lighting — basically, you are ensuring that none of the generated electricity gets wasted.

The last step is ensuring that we can make use of the electricity we have stored. Without getting too technical, basically the electricity stored in batteries and the electricity we use to power our appliances is different. However, we can make them the same. To do this, the electricity from the batteries passes through what is called an inverter. This basically converts it into the right kind of electricity to power your appliances. From the inverter you have your plugs setup that you plug your TV / stereo / etc into.

Vincent

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Josue