Archive for June, 2010

What Are The Best 2 Types Of Wind Turbines?

June 23rd, 2010 Comments off

Do you know what the main goal of wind turbines is? It is simply generating energy from the wind. Do you think that is impossible? Indeed, it is possible and it is getting well-known in the meantime. If a fast car drove by, you will feel the wind energy from the car.

Providing that the wind is produced above the minimum limit, then a reasonable amount of energy can be generated. Have you seen before all these tall turbines standing in the field? They represent today a clean and permanent source of energy.


What is the nice challenge here?

As the name states, wind is needed to generate the energy. And the interesting question here is where you should position your turbines. It makes sense to think of this question wisely as the amount of the energy produced is directly proportional to the amount of the wind.

Where should you place Off-Shore turbines?

Practically, they can be placed Off-Shore in order to produce energy from wind in the air and from the water.  They do not bother the view as much when they are out on the water and the noise that they make cannot be heard on land.


Why does it make sense to do so?

In the real world, the average wind speed is higher on the water, thanks to the less surface roughness. As a result, every part of energy from the wind can be used and, hence, you have a better investment due to less loss.

What is the problem here?

Unfortunately, nothing is perfect as this kind of wind turbines is noisy. One more drawback here is the fact that these turbines are tall and may disturb the nice view. Nevertheless, I would not hold myself back as these drawbacks are not that bad compared to the benefits obtained.


Are Near-Shore wind turbines better alternatives?

Indeed, these turbines offer one more benefit as they can be seen, but not heard.  They are on water so they can produce enough energy compared to being totally on the land.

Because the sea shore lines are considered to be very windy due to the tides coming in and the wind on the water, it becomes the perfect location for a turbine.

What are the basic challenges behind this strategy?

There are issues and concerns with how wildlife is using these towers and zones for their nesting and habitats. There is another concern that the shoreline wind farms are not in the best interests of those who wish to come to the shore line to visit.

In the meantime, the number of people, who is interested to see these turbines, is getting higher and higher. For this, one can reduce the size of the tower to make everything visible for the visitors.

However, this idea involves the risk to generate lesser amount of energy as the amount of the energy produced is directly proportional to the length of the tower.

Armed with this information, you should know now what the basic types of wind turbines are. Off-Shore and Near-Shore are two kinds that are widely used. Each of them offers benefits as well as drawbacks.


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Concentrating Solar Power Systems: Your First Guide!

June 23rd, 2010 Comments off

Are you still wondering why many people like to have mirrors on their fields that point toward the sun? The answer is these people are looking to build a solar power system.

The idea behind these systems is to concentrate the sunlight to one spot and, accordingly, the heat focused can be used to heat up the liquid that flows along the pipes.

This system is well-known as Parabolic-trough system, which plays the role to heat the oil that is flowing through the pipe. As the oil is extremely hot, it makes sense to use it to boil water to power a steam generator, which in turns powers the needed electricity.


Why do people opt for this system?

The big deal behind these systems is the U-shaped mirrors. They do an excellent job in attracting and collecting the sun heat, which is then transferred onto the receiver.

The receiver absorbs the heat and transfers into fluid, which helps to power the engine.  The heat causes the fluid to swell up against the piston and that produces mechanical power.


What are the typical applications for this energy?

There is no unique answer for this question as you can use this system for any application that needs power. For example, operating generators or even an alternator can be typical examples of this method. Indeed, this system works fine, thanks to the molten salt that flows through the receiver.

When the salt heats up, it can generate electricity through the steam generator.  The salt holds in the heat for several days before it has to be converted into electricity.  Because this system uses so many panels, it is mainly used for industrial solar power where acres of land can be donated to the Parabolic Trough.


What is the big benefit behind this system?

Indeed, this system does not have to work every day to generate power. Such systems are large enough to create energy that will be enough not only for a single day, but also for several ones. Practically, this system is large enough to permit the transfer of the heat a couple of days later.


Why should you opt for this option?

Business owners do opt for concentrating solar power systems as they will never run into the problem of having long down-time when the power fails. They do care about their machines in the first concern, and as long as the machines can still work, nothing else will worry them.

What is the direction of the future?

Scientists are continuously studying this theory as businesses use it to power their machinery.  Steam power was what was used from the beginning with solar power and is still what most systems depend on to service their production needs.

In fact, experts expect to see more and more fields that full of mirrors pointing up to the sky. The motivation is surely generating solar energy that is enough for the whole world. This is indeed a great goal since traditional ways of getting electricity are getting more and more expensive.


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Solar Energy- Advantages Versus Disadvantages

June 5th, 2010 Comments off

What is the main motivation behind using solar energy?

Indeed, thousands of people are intrigued by the idea of using solar energy to reduce the carbon footprint left back in the environment.

But, like many others all around the world, you are not sure whether you know all solar energy advantages and disadvantages.

If you find yourself stuck in this situation, then this is the article you are looking for.

Hence, I do advise you to dive into the information mentioned here in order to avoid any undesired results.

How does solar energy work for homes?

Now, before we discuss the main benefits and drawbacks of solar energy, one has to quickly understand how solar power works for homes.

First of all, you will need to have a set up, which involves solar roof shingles, inverters, batteries, and wiring. When all are in place, solar roof tiles absorb the heat from sunlight and convert it to home solar power.

So, what are the advantages of solar energy?

Indeed, the greatest benefit is that you will not be adding to pollution, which is one of the greatest current threats to our environment. Specifically, you do not need to worry about environmental problems, e.g. carbon dioxide emission and global warming, when you opt for utilizing solar energy.

Well, what would be the second great benefit?

In fact, another advantage of solar energy is that it is being obtained from a renewable source. Can you ever think of the Sun getting extinguished or sunlight getting depleted like the level of fossil fuels in the world today?

Well, this situation will not arise for thousands of years. So, we can use solar energy for running all the heating and electrical devices at home without the guilt of leaving nothing for the future generations.

Does solar energy offer a good effect on the economy?

Considering the current down economy, one more aspect of solar energy is that you can reduce the cost of your electricity bills. Consequently, this can make you significantly richer each month.

And now, what are the drawbacks?

The main drawback is that solar roof tiles can generate energy only when there is sufficient amount of sunlight. In other words, during days when the sky is cloudy and at night times, solar energy can not be produced.

How can one overcome this drawback?

In order to avoid this problem, you will have to opt for photovoltaic roof shingles. They will not only produce solar energy, but also store them in the photovoltaic cells. Consequently, you can still use this kind of clean energy even when the sky is cloudy.

Is it an ideal solution?

Honestly, there is no ideal solution. Specifically, the drawback in this case is that you will have to pay through your nose for the setup since it is on the higher end of the price spectrum.

Now that you know a lot more about solar energy advantages and disadvantages than you knew before, it is the high time for you to make the right choice. Briefly, I would strongly recommend it to switch over to use this renewable source of energy at the earliest.

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