Advantages And Disadvantages Of Renewable Energy Sources by Troy ...

What are the Advantages and Downsides of Using Green Energy Sources?

Now, we are at this time conscious of the aftermath of global warming. Luckily, it isn't too late and we can still modify which is why many are pushing for green energy sources.

The advantage of using green power is that it is clean so it is unpolluted so it doesn't emit anything harmful into the air which has an impact on the atmosphere. It's also renewable which implies we will never run out of it unlike oil which is predicted to dry up in ten years or so.

While green energy facilities are expensive to construct, it needs less upkeep so you don't have to shell out a large amount of money to operate it.

It can also bring industrial advantages to selected areas even increase tourism.

Even as these sound good, there are some who say that there are benefits to using such technology.

While clean energy sources can make electricity, how much it can make is not consistent. The reason we have no control of the weather so if a certain area depends on solar electricity and there's a weather distraction, it will not be able to convert sunlight into electricity.

Building these services also requires lots of land so we may have to cut on farmland which is what many are nervous about if more air turbines are to be put up.

A different disadvantage is the fact that some of the renewable energy sources can't be installed in selected areas of the earth. For example, wave energy can only be employed if the waves coming from the ocean attain at least 16 feet. The use geothermal energy can only be done in geologically unstable parts of the earth.

But if you look at such arguments, places that can't use one form of renewable energy source can be substituted for another. If turbines need more space, they can be installed close to the coast rather than putting these on land. A study shows that you can make more electricity whilst these are in the ocean.

Even as the weather is a thing we can't control, it is not everyday that there's a weather disturbance so this too shall pass. If solar electricity is being used and the sun is covered, the emergency generators will be turned on and use up the energy that was stored.

The point is that there are tactics round the discussions put by certain people which discourage the use of green energy sources. Actually, research is continuing to try and harness other means to make the power we want.

A very good example of this is called ocean thermal energy. Power is generated by harnessing the altered temperatures in the water. It is currently being used on a tiny scale both in Japan and Hawaii.

In the US, only 7% of green energy sources are used countrywide. This was way higher eleven years ago and if we don't have to worry about the cost of oil or maybe reduce our reliance on it, we need to invest more in this clean energy.

We can get it from green energy sources such as biomass, biodiesel, geothermal, solar, water and the wind. These are things we have all around us and all it takes is for someone to harness it instead of relying on normal non-renewable means to produce energy.

To check out a review of http://www.renewableenergyuniverse.com/ products that can save you hundreds of dollars on your electricity bills http://www.renewableenergyuniverse.com/

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Renewable Energy Sources - Solar Power

What's not to love about solar power? The sun is what allows life to exist on this planet. Since man invented the light-bulb, we've been trying to harness and illuminate the inside of our world the way the sun does outside. To date, the power to light our world and operate our equipment comes primarily from combustion. We ignite fuel (primarily petroleum-based), and use the energy produced to spin turbines and generate the electricity we need to live in this modern world. The sun is the quintessential combustion engine; its heat and energy creating and sustaining a constant cycle of more heat and energy. So why then, has it taken until now to begin harnessing this power for our own needs? The answer, like most business decisions, is cost.

Until now, it has been cheaper to create a combustion reaction here on earth and then to harness it from the sun. The ability to convert solar rays into usable energy has been around since the late 1800s. Initially it was solar-thermal power, where the rays heated steam and propelled a small engine. Eventually, the solar cell was developed, using certain elements that reacted electrically when exposed to solar rays. Using either of these actions on a scale great enough to power an electric society is an immense undertaking. Only recently, with the scarcity of oil, have we seen a shift to an affordable solar apparatus.

Given the current focus on renewable energy, the supply side of the solar business is becoming more affordable. In addition, there are government and private programs available for people who wish to generate solar power. Unlike the current power grid, a solar generation occurs primarily on a site by site basis. While there are large scale solar farms, any flat area with sun exposure is a candidate for solar panels. This puts the power in the hands of the people who need it most. And in this authors opinion, it will not be long before every rooftop has a solar panel on it.

Unfortunately, in a regulated utility market, you cannot just plug in a panel and start playing video games again. This means you are still a part of the national electric grid, for better or worse. Better, because you can still have power at night or on cloudy days. Worse, because you still have to deal with the electric company.

The most obvious cost benefit to solar is that your business or home will require less power from the grid. You can tailor the size of your solar panels around your monthly electric usage. If you decide to generate solar, your electric meter will actually turn backwards at times when you are generating more electricity than you use. This results in significant monthly savings, as the supply portion of your utilities bill will be reduced.

In many states, like my home of New Jersey, you can actually get paid for your efforts. While you cannot physically sell the power you make, you can receive rebates and savings through state programs. In NJ, this is done through SREC (Solar Renewable Energy Credits). These are given on a monthly basis based on the number of KW/h your solar panels generate. The credits are a tradeable commodity, with market price subject to supply and demand. Utility companies are required to buy a certain number of these credits each year. The credits are expected to go down in value predictably as more people enter the market by generating their own solar. Therefore, solar producers are encouraged to sell them as they earn them.

Another way to save/earn money from solar is to lease your affordable space to an entity that will use it to produce solar. Leasing your available space will provide monthly rent from an area of real estate that was presently unable to produce income. Large rooftops, especially distribution centers or office spaces, are prime candidates for this arrangement. Any company with a usable roof should consider setting up some form of solar generation. What else are you going to put on the roof that will earn you money?

Ideally, you would want to reduce your utilities bill and earn SRECs by producing solar on your own. But it is still a costly investment, and if you cannot make it on your own, there are plenty of people with abundant funds and limited space. There is financing available that can be secured in exchange for the SRECs generated by the system that is financed. With all this help, there is no reason not to capture the wave and build solar today.

There is no doubt that green energy is here to stay. And it is not just for the eco-friendly anymore. Government programs have made it very easy for any investor to make solar improvements. Technology advancements are making it ever cheaper to put them in place. Do some research and talk to an energy consultant. I think you will find yourself warming up to the idea of a solar powered world.

If you would like to get information about this for your business or home go to Here

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The Benefits Of Using Renewable Biofuels

An alternative to using traditional fossil fuels for powering diesel engine vehicles and heating homes that is growing in popularity is biofuel. Biofuel is a renewable energy source as it consists of agricultural products like soybeans. It can also be made from WVOs (also known as Waste Vegetable Oils) and is often found discarded in restaurants, making it a readily available resource in most areas. Whatever the materials renewable biofuels is made of, the benefits of using this alternative fuel source is tremendous.

With gas prices rising higher and higher at the pumps, it is no wonder that citizens are contemplating a substitute fuel source. There are benefits to using biodiesel blends that employ as little as five percent of biofuel mixed with diesel. Just a small change like that can offer a significant price reduction in fueling your vehicle. Blends range from one percent and can go as high as ninety nine percent biodiesel mixed with one percent petroleum diesel. The mixes are marked with a "B" and the percentage of how much biofuel is contained within the blend. There is also B100 available, which is a pure renewable biodiesel. These are all effortless to utilize, non-toxic and biodegradable.

Using any blend of renewable biofuels greatly reduces your impact on the environment and lightens your carbon footprint. The air quality is helped considerably by the biofuel burning cleaner than traditional fossil fuels. Renewable biofuels do not contribute to the pollution caused by burning diesel fuel. This pollution in turn has been linked with health problems associated with lung cancers, respiratory illnesses, allergies and asthma attacks.

In some cases, heart and respiratory disorders have resulted in death from the impact diesel pollution has made. Another benefit to using renewable biofuel energy is the reduction of life cycle emissions and greenhouse gasses. With a reduction in global warming, the effects of our heated planet could start to reverse and in turn protect us and future generations from one of the biggest threats that Earth faces.

Another big benefit of switching to renewable biofuels is the resulting freedom and independence from foreign oil sources. By relying on a domestic fuel source, the need to borrow money to import oil can be eliminated. And another result of cutting off foreign oil trade is the creation of a new job market. With hundreds of thousands of jobs generated across the country, the recent economic downturn could be righted. The agricultural field and rural development could also see stimulation.

From clean energy to green technology, Alexander Sutton is involved with a number of green endeavors and wishes to spread awareness about environmentally friendly issues. For more information, please visit Renewable Biofuels.

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Renewable Energy: Brief General Introduction (Part Two)

HYDROPOWER

Water movement in general can be utilised to produce what has been termed as 'hydropower'. This may range from ocean waves to falling water and underwater currents. The hydropower system is used to produce electricity by spinning the turbine generator or simply for mechanical purposes.

Currently, hydropower is the most common way to generate electricity worldwide, in the form of renewable energy. Manmade hydropower can help in flood control as well as in irrigation. Depending on the type of the hydro project and the state of the land before the project, the lake produced can be a positive aspect of an aquatic ecosystem.

The structures of a hydropower plant, such as canals, tunnels, dams, reservoirs, access roads, and so on, are useful in relation to the area's development. On the other hand, negative aspects can be: siltation, soil erosion, soil and water salinity, obstruction of the free passage between oceans and rivers, weed growth, floods due to dam failures, as well as possible disease spread by organisms that live in stagnant water, and the possibility of damage to natural resources, such as fish.

In many parts of the world, development within this sector of hydropower is still expanding, mostly for generating electricity.

However, in some Western countries, such as USA, the hydropower has peaked within the last two decades of the last century (ESA21).

SOLAR

Using sunlight and/or sun heat to generate energy in the form of electricity (or for heating systems) is one of the growing ways in which solar energy is used and applied. From the small calculator to the satellites orbiting the earth, solar cells can provide the energy in different ways and in different processes.
The sunlight or heat can be used directly or indirectly, as in the following examples:

Solar Cells

Solar Cells are usually referred to under the name photovoltaic or photoelectric cells. These cells convert sunlight directly into electricity. On a good sunny day, sunlight on one square meter of solar panel can produce enough power to run a 100W light bulb (MNRE, 2008).

Solar Water Heating

In some domestic settings, by pumping water through a pipe painted black the heat from the sun is used to heat water in glass panels placed on the house roof.

This heating system is mostly suitable in places where heat emanating from regular sunshine takes place.

Solar Furnaces

By collecting sun rays (e.g. by the use of mirrors) and concentrating them in a small space, a high temperature can be achieved in a specially designed furnace. Using this design, it was reported that a temperature of 3,000o C was reached at one of Odellio's laboratories in France.

The above are very brief examples of how sunlight and sun heat are currently being used as another type of renewable source of energy.

The positive aspect in using sunlight and sun heat is that there is no waste or pollution. It can be used in sunny countries to get electricity in remote places when connection from the main electricity grid is not possible. Also, it can be used for small domestic appliance (e.g. heating water) as well as for charging batteries.

However, it is costly to convert the solar energy to electricity for large power stations. Also, it can be unreliable in an area where there is no regular sunlight.

WIND

By using the energy from moving air, large blades on windmills rotate to turn the turbines in order to generate electrical, thermal or mechanical energy. Energy (such as the production of electricity) from windmills requires large open spaces with high occurrence of wind throughout the year, in order to make it commercially viable.

The positive aspect of wind energy is that the source of energy is free. It generates no air or water pollution (apart during the hardware manufacturing process when fossil fuels used for this purpose).

The cost of electricity from windmills is declining. However, noise, shades, and light fluctuation, if windmills constructed close to residential areas, can be negative aspects. Also, the limited availability of space with regular wind pattern can be a problem in some parts of the world, plus, the possibility that windmills may harm wildlife, such as birds, is also a concern.

Najib Altawell

References

ESA21 (Environmental science activities for the 21st Century) (2009) Renewable energy: Hydropower.

MNRE (Ministry of New and Renewable Energy) (2008) Solar photovoltaic programme. Government of India.

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Wind Turbines Might Be The Way To Go for Renewable Energy

Large wind turbines are a good source of renewable and relatively clean energy. They have captured the attention of many environmental groups lately as a very realistic new alternative to currently used energy production techniques. Let's see how they compare to current energy production methods.

The way we produce most of our electricity these days can hardly be called environmentally friendly. Coal fueled power generators belch thousands of pounds of pollutants into the air every year. The mining necessary to fuel one of these stations can devastate vast areas of land, transforming it into barren wasteland. Nuclear power plants produce cleaner energy, but have the potential of creating a much bigger disaster if nuclear meltdown should occur. Even hydroelectric systems cause damage to the surrounding eco system with their dams and sluice gates.

With the "green" movement in recent years, people have turned their attention to more modern approaches to energy production. These days we have set our sights on clean, renewable energy sources. Let's look at how the different sustainable energy sources stack up.

Some countries in Europe have been developing exciting new ways to harness the energy of the tides. These tidal stations work quite well, but the technology is in its infancy. There are also concerns over the effects it may have on habitat. Although wave energy might be a viable option in the future, there is still the obvious disadvantage that this technology relies completely on proximity to a tidal body of water. Inland areas cannot take advantage of this type of energy collection.

Solar panels are probably one of the first things people think of when it comes to renewable energy. These big, heavy, expensive solar panels rely on delicate photovoltaic cells that capture a very minimal amount of energy. The ground area necessary for substantial energy generation can be immense. In order for solar panels to produce sufficient energy, the panels have to be spread out across a wide area, and this can disrupt many animal habitats and plant life. The cost to benefit ratio of this energy method is low, making it a poor option.

Something like a windmill doesn't require as much space to produce energy. They can be put on the tops of skyscrapers, for instance. They don't fail if the sun is behind a cloud, and they won't break easily. They can quickly be adjusted to face the optimal direction for wind energy production, unlike photovoltaic arrays which are typically static.

Windmill technology is extremely old, and we have worked with it for generations in various ways. The basic physical premise behind the machine is well understood, and has not changed much in centuries. They are also able to be used anywhere there may be substantial air currents, and do not require a body of water.

If these things were used at a building specific level, a great deal of the power needs of a city could be met. With generating vanes atop each massive office building, the skyscrapers could at least be able to run their own elevators and lights.

As we move toward cleaner and more renewable energy sources to meet our ever increasing power needs, wind turbines are beginning to stand out as some of the better solutions. With a relatively cheaper price tag and a smaller environmental footprint than its closest alternatives, this may very well be the technology to get excited about if you are interested in the future of our energy supply.

Cory Sober is the IT Director for UpWind Solutions, a full-service operations and maintenance provider for utility-scale wind farms. He is part of a highly trained team focused on maximizing long-term productivity of wind turbines, and as a result, delivering a higher return on investment for wind energy projects.

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Green Energy - Benefits Of Renewable Energy

If you are like most folks, you have probably heard a lot in regards to green energy in this past year or so. Whether or not green energy interests you, it's clear that it's not just a passing fad or a new trend that's quick to die out. Renewable energy, such as solar energy and wind energy, are gaining a foothold as a mainstream energy resource that not only businesses can use, but people in residential housing can use as well.
What is likely the key defining trait of green energy is that it produces virtually no hazardous by-product or pollutants that would damage the surrounding environment, unlike more common energy resources that are used today, like traditional oil and fossil-fuels. Things like the rays of the sun, which is what is used to generate solar power, as well as other things like the power of the wind, are completely natural, safe for the environment, and virtually unlimited as an energy resource. Not only that, but they are completely free resources that can be harnessed by the everyday person.
It's obvious that green energy has many more overall benefits than it has disadvantages. After all, if there were too many disadvantages to renewable energy resources, why would anybody want to use them? For those that are concerned with the state and the health of the Earth, the advantage is of green energy should be already as clear as day, as it is considered a very progressive energy resource and there is virtually no environmental impact to speak of.
Another notable trait of alternative energy resources is the sheer amount of money that can be saved by utilizing resources such as solar energy and wind power. When you consider that the cost of public utilities and general fossil fuel electricity has been rising steadily over the years, green energy resources can be much more appealing, especially to the common home owner. The reason for this is because things like solar energy are completely free, and all you need to take advantage of such an incredible resource is to utilize a solar panel, or several solar panels, which is known as a solar array. What these solar panels do is gather the solar energy, which as a reminder once more is a free resource, and store it inside of a battery which will be directly connected to your home or place of residence, and will thereby power any electrical applications that you may run, all of which will now effectively taking advantage of the power of the sun.
Solar panels and wind turbines are an excellent advancement in modern green energy technology. If you'd like to learn more about green energy, learn how it can save you tons of money, and how you can bring the power of these Green Energy Resources into your home and lifestyle, then start by finding out more about Solar Panels right here.
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Want To Know The Renewable Energy Pros and Cons? by Alan Benney

Numerous property owners in this day and age are researching the subject of green energy, with the goal in mind of producing their own source of energy.
With constant rising prices and a lack of control over this situation, can be a frightening thoughts. With that in mind, we have to look at green alternatives in order to resolve this problem.
The question is what are green energy sources?
The sun and the wind are the two primary sources of green energy that can produce electricity. The renewable energy pros and cons is something we have to take into consideration in order to protect our environment. By utilizing this source of energy we can forget about global warming, pollution, or any issues regarding saving our planet.
Most people by now would be familiar with the sun's energy, this is referred to as solar energy, or solar power. This is arguably the most general mainly because of the numerous alternatives of generating power.
The sources of energy using the sun's power is still in the early stages of development; however by using photovoltaic cells in solar panels, is a very real solution to producing our own electricity. This is giving the user the opportunity to control energy costs and in some cases, eliminating the national grid as a source of energy.
The facts are, people in business are having to take these alternatives very seriously. The business costs for electricity runs into thousands of pounds annually. Who pays for that? Yep you got we do!
Even as a domestic user of electricity having to rely on the notational grid, we are paying many thousands of pounds annually. As the costs of oil rise, this has an immediate effect on our utility bills, plus it is not contributing to saving our planet.
An additional source of power that is accessible is solar water accumulators. The process is to install the containers on the roof of the building and make use of the sun to heat the water. This can be very effective way to reduce utility bills.
Arguably the most resourceful of green energy solutions is the wind. The wind as a source of energy has been around for many years. Pumping water has been its main function for many years. The facts are that numerous homes and business owners are producing their own electricity, as they have become more aware of environmental concerns.
The main benefits to the use of wind power are, how safe and clean the energy sources are. The truth is, contamination, and global warming is now not an issue.
When you erect a wind turbine it rotates in the wind and produces energy. There is a concern to look upon on this subject; it does depend to where you live in the world. There are places in the world that are unable to take advantage of the wind whereas, the sun is accessible universally.
There are numerous ways we can play a role in doing our bit for the environment, but we have to be considerate and not take things for granted. My goal by writing this article was to encourage you to find ways to protect our environment and to save money in the process.

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Advantages And Disadvantages Of Renewable Energy Sources by Troy ...

What are the Advantages and Downsides of Using Green Energy Sources?
Now, we are at this time conscious of the aftermath of global warming. Luckily, it isn't too late and we can still modify which is why many are pushing for green energy sources.
The advantage of using green power is that it is clean so it is unpolluted so it doesn't emit anything harmful into the air which has an impact on the atmosphere. It's also renewable which implies we will never run out of it unlike oil which is predicted to dry up in ten years or so.
While green energy facilities are expensive to construct, it needs less upkeep so you don't have to shell out a large amount of money to operate it.
It can also bring industrial advantages to selected areas even increase tourism.
Even as these sound good, there are some who say that there are benefits to using such technology.
While clean energy sources can make electricity, how much it can make is not consistent. The reason we have no control of the weather so if a certain area depends on solar electricity and there's a weather distraction, it will not be able to convert sunlight into electricity.
Building these services also requires lots of land so we may have to cut on farmland which is what many are nervous about if more air turbines are to be put up.
A different disadvantage is the fact that some of the renewable energy sources can't be installed in selected areas of the earth. For example, wave energy can only be employed if the waves coming from the ocean attain at least 16 feet. The use geothermal energy can only be done in geologically unstable parts of the earth.
But if you look at such arguments, places that can't use one form of renewable energy source can be substituted for another. If turbines need more space, they can be installed close to the coast rather than putting these on land. A study shows that you can make more electricity whilst these are in the ocean.
Even as the weather is a thing we can't control, it is not everyday that there's a weather disturbance so this too shall pass. If solar electricity is being used and the sun is covered, the emergency generators will be turned on and use up the energy that was stored.
The point is that there are tactics round the discussions put by certain people which discourage the use of green energy sources. Actually, research is continuing to try and harness other means to make the power we want.
A very good example of this is called ocean thermal energy. Power is generated by harnessing the altered temperatures in the water. It is currently being used on a tiny scale both in Japan and Hawaii.
In the US, only 7% of green energy sources are used countrywide. This was way higher eleven years ago and if we don't have to worry about the cost of oil or maybe reduce our reliance on it, we need to invest more in this clean energy.
We can get it from green energy sources such as biomass, biodiesel, geothermal, solar, water and the wind. These are things we have all around us and all it takes is for someone to harness it instead of relying on normal non-renewable means to produce energy.
To check out a review of http://www.renewableenergyuniverse.com/ products that can save you hundreds of dollars on your electricity bills http://www.renewableenergyuniverse.com/
View the original article here