Are Wind Turbines Simply Hazardous?

by Janet More

Nearly everybody is aware of what a wind turbine is and the way in which they produce energy, but for those which don't know I will explain. The traditional design resembles a tiny windmill on a toll structure. Electricity is produced by the generator, housed within the turbine casing, when the rotor is turned by the wind. The generator is a common design consisting of magnets and copper wires. There's almost nothing complex about this type of generator.

Wind turbines, as the name suggests, call for wind to function. Wind is much more powerful higher up in the sky, which is why wind turbines are very tall, at around 30 meters. This height allows the rotor to receive more exposure to the wind and subsequently create a lot more electricity. All of this would not matter if there's no wind from the beginning. Historical weather info is carefully analyzed to select sites that will deliver sufficient continuous winds for the turbines.

This is likely to mean they are situated along coastlines where it is usually very windy. In fact, the wind can change its direction which creates another downside for wind turbines. Nonetheless the design is very clever and they are manufactured so that the rotor turns in the direction of the wind, enabling them to capture the wind from any direction.

Because of their economical design, turbines can produce a lot of power that can be utilized for domestic or commercial applications. A battery backup which is replenished by the turbines, supplies power during occasions when no wind blows. As a result of the high initial investment, which will require decades to recover, wind turbines require a long term perspective.

Unlike various other green energy methods, wind turbines will consistently work 24/7, providing there is wind. Solar panels can not work in the dark while wind turbines can. Another excellent thing about wind turbines is that they're eco-friendly as they produce absolutely no pollution.

This suggests that wind turbines do not contribute to the effects of global warming because there are no fuels actually burned and no emissions being introduced into the atmosphere. Another feature is that turbines are harvesting energy from a regularly renewing source. This means that turbines will usually be able to produce power if they are located in high wind locations.

Even though they have got a lot going for them, there are some negative aspects to consider. They're definitely not a pretty sight, particularly because they're so massive. When put in groups, such as the huge commercial installations in coastal districts and even out at sea, precisely where there are high winds, they are not really an attractive site.

Noise pollution is an additional complaint due to the friction of the rotor going up against the shaft when it spins. While good for meeting the needs of human beings, they can be unsafe to birds and bats. The spinning rotors disturb the bats' ability to steer clear of objects with their sonar readings. There are no figures on how often this happens, nonetheless.

Wind turbines certainly seem to be a excellent source of energy, but needless to say there are downsides like with anything. They can play a primary role in our future energy plans if they are applied carefully.


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Solar Energy Is Free Energy To Be Utilized

by Nathan Thompson

Our planet receives about 174 petawatts of heat radiation from the sun. Solar energy is free energy we can use. About 30% bounces back to space while clouds, land and bodies of water absorb the remaining radiation. This totals to about 3,850,000 exajoules of sun energy absorbed by Earths atmosphere annually.
Ever since the ancient times, the heat that comes from the sun has been very useful to people. The solar energy is a free energy for mankind. Through this natural source, we save from using fuel and other means of power source that cost too much.

The heat production is double the amount compared to oil, natural gas and coal produced for a very long time. Due to this benefit, sun power is used nowadays through our modern technologies. Some of these sun powered applications include water heating, heating and cooling architectures, electricity production and satellites powered by heat cells.

Recently a lot of buildings are designed with the utilization of passive sun heating. The design usually includes huge windows created from materials that retains heat. The place of storage for the collected sun heat is in the walls and the floors. These continually release heat when it is cold especially when it is nighttime. With this development, the owners can now put aside some money for other uses.

Power plants are also taking advantage of sun power. Before they use fossil fuels but now they use power systems from sun heat. These include the parabolic-through, powered tower and dish.
Parabolic-through collect power from the sun with the use of skewed U-shaped mirrors. These focus light and heat to the pipes that has oil in it. The oil then in turn heats the water which is used by the generators to produce electricity. The dish system and power tower system has sort of the same concept in electricity production.

Another use of the heat from sun is through the sun collector. This is used in order to cool a building. The cooling system operates like that of an air conditioner. It uses the collector to get power from the sun. Evaporative coolers as well use this kind of power collection.

Water heating has also been a famous use of sun power. Glass panels in roofs are used to heat water. Through this, gas or electricity will be saved. Pipes in the panel contain water. Water is propelled from the bottom which helps hot water to be pumped from the top.

And lastly, our everyday use of satellite TV, telephones, internet and navigation systems make use of sun as well. In order to run satellites that orbit our planet, sun cells are utilized as a natural source of power. Once again, we are using heat from the sun as our free source of power.

We have been using solar energy is free energy ever since. We use it to dry clothes. Some even use it to dry food by natural means. However, in the past only a few amount of this vast resource is being used. Nevertheless, with the development of technologies, we are now able to harness this heat for better usage and still it is for free.


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Get Free Energy With DIY Solar Panels

by G Smith

The world is an ever-changing place, as we can see so many homeowners tackling projects where in the past, were reserved for handymen. People have recognized the need and the possibilities that come with do-it-yourself projects, such as saving a ton of money. There is also a sense of pride that comes with it as well. Below, learn how you can get free energy with solar panels DIY and enjoy freedom.

As you may already know, this energy has been in existence for quite some time. Many people have stayed away from it, unfortunately, because of the high costs involved with them in the past. Think goodness, this has changed and they have become more affordable.

Of course, this is true even in a professional installation. However, a professional installation does bring on many more costs, making this a much larger investment. If you want to enjoy real savings, tackle the project yourself from start to finish.

Tackling the project yourself can save you thousands of dollars from the get-go. From then on, you can start enjoying free energy. Considering you have already saved big on the initial investment, your savings with regards to your free energy will begin much sooner than if you opted for a professional installation.

Plus, you can be proud of doing something good for yourself every time you turn on a light or plug-in and appliance. You'll know that your energy is either coming to you at a very reduced rate or completely free.

For one, there will be a huge reduction in your energy bill or you may not have to pay for energy ever again. Moreover, you get to give back to your environment. Your use of free energy is cleaner, leaving much less of a carbon footprint so that future generations can also enjoy a better life.

Solar panels DIY are not difficult to assemble. Nor is it difficult to find all the materials required to build them. In fact, all of these materials can be found in hardware stores or do-it-yourself centers. The only thing left is the step-by-step guide required to put them together so that they may work accordingly. Depending on your location, you may never have to pay for electricity again, or you may see a huge reduction in your energy bill. Imagine going completely off the grid. You can use your savings to fund a vacation or something else you can enjoy in life.

G Smith is a writer and business owner who specializes in exploring natural solutions to the variety of modern day challenges we all face. His latest blog at Facts About Solar Energy, provides a practical do it yourself approach in making renewable solar energy a feasible supplement to our ever increasing daily electric power needs.