‘science’ Tagged Posts

Solar Panels: A Vehicle To Energy Self-Reliance

The sun has had an impact on humankind since its beginning. The sun has had a significant influence in Greek mythology as well as religions. The Eng...

 

The sun has had an impact on humankind since its beginning. The sun has had a significant influence in Greek mythology as well as religions. The English Druids, Buddhists, Hindus, Incas and Aztecs, and many native American tribes are just a sampling of the many peoples who held the sun and its solar energy, in high regard in their religious beliefs.

The prominence of the sun is due to its nearness to our planet. Actually a star, the suns closeness to us, allows for brilliance of the light and the intense heat that can be transferred into energy. One minute sampling of the suns heating ability would be the drying of our clothes. Plant life also relies on the suns light for its growth and food production. Food that is uneaten decays and over a tremendously long period of time becomes fossil fuel. These fuels known as oil, coal, and gas are then produced. Even the production of nuclear energy becomes possible when exploding stars called nova’s release uranium atoms.

The uses for the suns energy are infinite. Humankind has long made use of its properties. The 1890’s found people heating their hot water with solar energy. Cheaper than wood and coal, it was also a cleaner alternative. In the U. S. The states having the sunniest and warmest number of days emerged as the first ones to use solar energy for heating water. Solar panels to heat water were installed in thousands of homes by the 1920’s. When greater amounts of oil and gas were found and prices plummeted for these fuels, many reverted back to their use. Presently, there is concern that the demand is beginning to exceed the supply and solar energy has moved again to the forefront.

Experimental power plants continue to focus on the production of electricity, while others have found ways to produce it. The state of California is presently using the Mojave Desert to collect solar energy using parabolic troughs or ’solar mirrors.’ The special curve of the mirrors directs the energy to a pipe that can intensify the heat to cause water to boil. The boiling water causes steam and that steam will turn a turbine and make electricity.

A way has also been discovered to turn solar energy directly into electricity. This is accomplished by the use of photovoltaic cells. When struck by the sun, the PV’s or solar cells, cause the loosening of electrons. The loosened electrons move to the front of the panel creating an imbalance within the front and back surfaces. Acting as a connector, these surfaces allow the flow of electricity from positive to negative. Special devices located on these panels allow for the tracking of the suns rays and sunlight can be collected for longer periods.

The immediate availability of use when implementing this direct energy form is an invaluable source of power. It can light city’s as well as individual homes. Illuminated billboards and streetlights; roadside phones; appliances and home heating are all made possible.

The electric automobile is now within the range of use. The use of PV cells located in these cars will allow for sunlight collection that is directly transferred in to electricity that will power the motors of these autos. Smog filled cities due to car and factory emissions could easily become a blight of the past. Solar power collection no longer has to be located miles from the earths surface. Advances will continue to be made as technology is only on the surface of what sun produced energy can do.

The future of electricity is in wind power. Home Made Wind Mill The future of electricity is in wind power. In excess of 11,000 turbines are presently being used, so one can imagine the number at each site.

Why Use Solar Energy?

 

Chances are, you are already using solar energy in a variety of forms. It is the primary fuel source in the creation of food, fresh water, petroleum, and wood. The question we propose is “why use solar energy to power your homes”? Is it realistic for generating useful heat and electricity?

The answer is that solar energy is reliable and free. From the early morning dawn to the late evening set, the Sun will shine each and every day. Solar energy may be the single most consistent thing there is on our planet.

Last we checked the government can’t tax it, and there is no pollution or greenhouse effect. And solar energy needs no refinement, it’s ready to go. Like a gift from heaven, perhaps nothing more perfect than pure solar energy.

So what if your photovoltaic system is only 12% efficient, or your solar collectors absorb only 70% of the available heat? The truth is, your energy source is free! No gas stations, no utility bills, no black-outs, and no ups and downs with the economy. Once you’ve placed your solar energy system in service, there are no recurring fuel costs. All that could take you down would be a volcanic cloud or weeks of unstoppable rain.

Selecting the right solar energy system for your home can be challenging at the start. What are the best choices for your location? What should we consider when sizing the equipment? Is solar energy really right for me? Here are a few answers to guide the way.

If you have a sunny climate with lots of solar energy, then put it to use. You will save money in the long run, and living in an environmentally friendly way. We would estimate that at least 50% of the United States could be using solar energy in some way.

If your climate tends to be cloudy and rainy most of the time, then probably solar energy is not for you. Coastal climates and northern winters tend to be tough for this. But this does not mean you should not investigate, there may still be some opportunity.

When it comes to making heat and hot water with solar energy – absolutely. We call this passive solar heating. These are low cost systems that can be designed directly into your business or home. The designs for passive solar heating systems can be relatively simple and inexpensive.

Photovoltaic (PV) solar energy refers to making electricity directly from the Sun. These special panels will take in radiation and produce steady DC electricity. Whether you could be making PV energy just depends on the circumstances of your situation.

If your household or business consumes lots of electricity then solar power is hard to justify. This is where local Utilities are good, they can kick out the juice for all the high power users and the heavy duty industries. But if you are simple in life and efficient in how you use energy, then the up-front cost of solar power can pay off over time. It could be as little as 5 years depending on the electrical rate of your local utility (i.e. California)

If you are developing a new property that has no electrical transmission cables, then solar energy systems may be right for you too. The money saved in routing transmission cable may pay for your solar energy system in itself.

If you are interested in an emergency reserve of energy, then this also is a good use for solar energy. You could charge a large bank of batteries with a small number of panels. So when you get those destructive storms and environmental disasters, just kick in the emergency reserve and ride it through.

The truth is, mankind is making good progress with solar energy technology. By engaging in independent and gridless energy systems, we can save a little money, help improve our environment, and set a good example for our kids. It is not such a bad idea to simplify our existence.

Walter Hull is a recognized expert in solar power power systems. For a short time you can get his free report to solar power from your own yard.

Wind Power Systems Are Becoming Very Popular

 

While wind power systems and other alternative sources of electricity are becoming popular, and even common, in many parts of the world, Canada has been utilizing this form of electricity for years. Wind sourced energy has become a natural part of business and residential energy systems in Canada for quite a while. If you are considering moving to Canada soon, or even doing business with a Canadian company, you should really learn more about the way Canada uses wind energy.

Canada has been very proactive in how it has been seeking to use the wealth of the natural resources it has. It knows it has to supplement the power generated by the more traditional methods of hydro power stations and fossil fueled power stations.

Using wind energy to power wind turbines to generate electricity is fantastic for the environment. With this as one of the major factors, the Canadian Wind Energy Association has made a strategy that will greatly increase the energy produced using the power of the wind to 55,000 MW by 2025. And the wind is a resource will not diminish and need to be replaced in the future.

Ontario was the first province to embrace the use of wind power, but Quebec and Alberta have now joined in and others are making good progress in this field. When this century began all of the provinces had done something about implementing a plan to move towards using renewable energy. They all know that they have to build wind farms, or some other method of sourcing alternate energy, as the traditional methods are running out of supplies.

Currently British Columbia is the only province that does not have a commercial wind farm, but the area’s electronic company has recently issued an Electricity Purchase Agreements for over 300 MW of wind-powered electricity, and other wind farms are being built across the country so that more citizens can experience the benefits.

Even so, the amount of electricity that is generated by wind turbines in Canada is still fairly small in comparison to other sources, like coal and hydro-power. There are about 85 wind farms in Canada at this time, and this represents almost 2300 MW of generating capacity. But this number is growing all the time.

Detroit and Chicago are beginning to take notice of what is happening just over the border in Canada. They are considering using renewable energies, including the power of the wind, to provide the energy required to supply the many businesses and plants in their region. The effect that this will have on the environment and the budgets of local government and enterprises that buy into it will be fantastic. Even if it is impractical to rely totally on wind power there is the idea to build more hybrid power stations.

The benefits of utilizing wind powered green energy is not just for local governments and businesses, domestic users can benefit from this trend of using alternative energy sources as well (such as the Feed in Tarriff program). Residents can buy equipment to generate their own power from personal turbines. A small turbine will cost about $5000 and will generate something in the region of 25% of their energy requirement. If you have the room for something a bit larger then maybe you could get a turbine that can produce 50% of your energy needs, but only if you are prepared to pay $7000 for the privilege. Even an outlay of %600 will get you a machine that will produce 200 watts, ideal for that off-grid cabin in the woods.

It’s possible to run your business through more innovative ways by utilizing inventions like wind power and other alternative energy solutions that make your process more environmental and efficient!

Fun Photovoltaic Energy Facts: Anyone May Not Have Known…

 

Solar energy is critical to the survival of every living organism on Earth. Nobody would be alive, not me or you or any plant or animal, if the sun suddenly stopped burning. Plankton, one of the smallest, most simple forms of life on this planet, must have solar energy to develop and live. Most people would agree that the first organisms to die would be plant life if we ran out of solar energy, because they utilize photosynthesis. Without any plants, there goes all the animals, from the simplest forms on up to the most complex, humans. So while we may not absorb light energy directly like the plants on our planet, we are still indirectly dependent on solar energy from the sun.

Another interesting fact is that solar energy is 100% environmentally safe because it has no carbon emissions. It also is 100% renewable, it is not going anywhere! Solar energy is used to produce electricity and heat all over the globe. At the present time, solar energy is widely used in solar energy water heating systems, which use the heat from the sun to heat water.

Photovoltaic cells can “magically” turn sunlight into electricity by somewhat complicated scientific processes that I won’t get into. The PV panels actually are pretty easy to install. Did you know you can even construct your own set of solar panels?

Another couple fun facts about the uses of solar energy are: solar-powered vehicles are currently in development, and NASA has created an airplane that is powered completely by solar energy!

Interestingly, thousands of people have chosen to make their own solar panels. It really isn’t as difficult as most individuals would assume. With DIY solar panels, homeowners can reduce their dependence on the electric company by a great deal!

Ready to make the leap to solar energy in your home and slash your energy bill in half? Then check out the Green DIY Energy review to download the #1 top-rated DIY solar panels building guide, the Green DIY Energy Guide. Download it instantly to your computer.

There Are Alternative Energy Solutions Which Can Cut Your Household Bills.

 

If you want to save money on your electricity bills then you may be looking for alternative energy solutions. Fluctuating energy prices and a difficult economic climate are leading many people to look for savings on their household costs. There are several ways to change your energy supply and save money.

Besides saving on energy costs, another concern for many people is environmental damage and climate change. If you are looking for a way to reduce your carbon footprint then there are two main areas to look at with regard to your house. Energy conservation is important. This can be achieved by using wind power or having quality insulation so that you can turn your boiler down. The other consideration is installation of a green energy technology.

It is difficult to produce figures for the possible savings when changing electricity supply as house size and location change the figures immensely. There really is no reliable average. However you can use an online energy calculator do a home energy check. You will input information about your house and the website can calculate how much money you are likely to save by using different sustainable energy technologies. This is a great way to decide which type of technology to use and it will help you to figure out how much you can afford to invest.

The two most popular forms of sustainable home energy are wind and solar power. There are advantages to both but the location of your house will probably be the deciding factor because the weather is so important. For example, to make use of solar power you really need many hours of sunlight each day.

The photovoltaic cells in solar panels need a lot of sunlight to generate significant amounts of electricity. Therefore they have to be placed in a location where they can take in as much of the light throughout the day as possible. For many years solar power did not represent good value for money to many people as the installation costs were very high. However in recent years the cost has come down a lot and so now the investment may be worth it for you.

You may have decided to install a wind turbine on your property. These are a clean and reliable source of power as long as you live in a place with sufficient wind. The installation costs for these have reduced dramatically in the last thirty years. Advances in the technology have also made the machinery more efficient so that it is getting more power from the same amount of wind.

It is now becoming popular to install these technologies yourself. There are do it yourself kits available with everything you need. These are a lot cheaper than having a company carry out the installation. You can do it for even less money by building the solar panels or turbine from scratch. Most of the necessary parts can be purchased from hardware stores or on the internet. There are also many websites with information on the construction process and how to calculate the sizes of panels and turbines you will need.

Alternative energy solutions are being sought by many people as they try to save money and lower their carbon footprint. The internet is a mine of information you can utilize to start your search.

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Adding Solar Power To Your Home

 

When it comes to converting your home into a solar home, there are several alternatives, because not all homes have the same problems, the same requirements or the same potential sustainable power sources. Therefore, if you are going to try a total conversion or even get off the grid completely, you will either need to do some do research or call in an expert to make a survey for you.

If you call in an expert, try to get an independent one, so that you can work out the costs of satisfying your energy requirements yourself. You will have to pay for such a survey, naturally, but you could carry out a report yourself with a bit of work on your part. In order to create a solar home, you may find the rest of this piece interesting.

There are fundamentally two kinds of solar design: passive and active solar energy. Passive solar energy can be used to provide heating, cooling and natural light for your home. Active solar energy is used for powering home appliances, tools and lighting. It is the perfect blend of these two types of solar energy that you will attempt to accomplish, if you are trying to convert your home into a solar home.

You can use passive solar energy techniques in many ways, although they are more easily built in during the actual construction phase of a new home. The largest area of glass should face south or be within 30 degrees of due south. This will catch the maximum amount of heat. This heat can then be distributed around the house by stone floors and stone walls.

The central heating ducting and furnace fan can be used to assist, if need be. If the house becomes too hot in the summer, awnings or even solar panels could be dropped down in order to put the windows in shadow. When thinking of passive solar energy, you should try to think of ways of providing warmth and coolness without using electricity. For example, a skylight at the top of the stairs will allow the warmest air in the house to escape, since hot air rises. This will cause cooler air to be sucked into the house at lower levels.

The other feature of a solar house is the generation of electricity by the deployment of solar panels grouped into solar arrays. Solar panels make use of photovoltaic cells to convert light into energy. This energy can then be used to power ordinary electrical appliances of all kinds or some or all of it can be stored in batteries for later use. Conversion from AC (alternating current) to DC (direct current) and back again, if necessary, is a simple matter.

Solar energy can also be used to warm up water for the pool or for the home. The most usual type of system uses pipes filled with a kind of anti-freeze to collect the sun’s heat and pass it on to tanks of water by means of a heat exchanger.

A solar home uses energy efficiency to minimize the necessity for heating, cooling and electricity. The use of higher grade lagging, more energy efficient windows, kitchen appliances and lighting than those utilized in traditional homes, will save you a lot of money and energy. As you can see, some of these changes, particularly the passive ones are structural, so hard to apply in many homes, but there is always something you can do to reduce your energy bills and gradually convert your home into a solar home.

Owen Jones, the writer of this piece, writes on many topics, but is currently involved with a favourite subject – alternative power sources. If you are interested in Sustainable Energy At Home, please click through to our site.

Solar Energy Panels For Home Or Business Use

 

It is almost high noon on the energy front. Oil, the substance that is used to produce most of the world’s electricity is becoming too dear to use to produce electricity for home consumption. Even if you think that there are lakes of oil left, which might be true, the main reason they have not been exploited yet is because it is too costly to get out. The only thing that makes it a viable concern is the high price of oil on the market.

Therefore, it stands to reason that oil prices cannot go down in the long term, which means that our electricity and petrol prices will remain high and will probably keep rising. Add to that the fact that manufacturing is switching to the Far East and the fact that immigration is increasing and the result is lower wages in the West. The probability is that the average national wage will not rise as quickly as the price of energy.

So what can you do about it? Well, while commodity prices are certain to keep rising, one thing has always kept falling and that is the cost of new technology. Or to be more precise, somewhat old technology. Cutting edge technology is always expensive, but after a few years the price falls, as we saw with desktop computers and as we are seeing with laptop computers now.

The same phenomenon is at work with solar panels. They are far less expensive now than they were a few years ago and they are far more responsive too. And did you know that the bits and pieces that are used to make solar panels can be purchased from plastic bins at most DIY and hobbyist stores like Radio Shack? If you knew what to buy you could literally go out and bring back enough bits and pieces to make a few solar panels the next time you go out for a loaf of bread.

So why are we not doing it? We did not know that was feasible? Nobody told us? We are not technologically minded? We do not have the expertise?

OK, all those reasons sound valid. Nobody has been telling us, but the truth is that it is straightforward to construct solar panels and not that expensive any more. Professional installations are still prohibitively expensive – about $45,000 -, but you can do it yourself. There are two routes you can take.

You can either get a schematic diagram, a plan, from a hobbyist shop or the Internet, buy the parts and make your panel or you can buy a self-assembly kit. Sincerely, there are kits about that teenagers can assemble as easily as they do a plastic model airplane. ‘Locate and insert part number 44 into the main board number 3′ – that sort of simple.

If you are new to the world of solar energy, then you may be wondering how solar energy panels work? Solar energy panels are also known as photovoltaic panels; photovoltaic meaning electricity from light. Solar energy panels work by collecting protons from the sun, which dislodge neutrons, and thereby create a flow of electrons or electricity. This electricity can either be stored in batteries for later use or used immediately.

You can utilize solar panels to heat your pool, run your workshop tools, power the greenhouse lights and fans or if your system is large enough, replace grid electricity in your whole home or business. Most solar energy panels are designed to last upwards of 20 years but involve little to no upkeep.

There is a drop-off of the power supply after about 10 years of about 10%, but over the life-time of the solar panels, the energy savings made are enough to recoup the original cost of the system and more. Furthermore, prices are tumbling while energy prices are increasing. It already makes economic sense to change to solar energy power.

Owen Jones, the writer of this article, writes on many topics, but is currently involved with a favourite topic, types of renewable energy. If you are interested in Sustainable Energy At Home, please click through to our site.

What To Know Before Purchasing A Home Solar Electricity System

 

The replacement of traditionally created electricity with electricity generated from renewable or alternative resources is now a viable alternative for many people in the Western world. The main stumbling block is the initial outlay, which is why solar electricity is still not a viable concern in most other, hotter, countries.

The fact is that fitting solar panels to get your home off the grid is a lot cheaper than it was ten years ago, but it is still not cheap. Some countries have introduced incentive schemes and these are fine, as far as they go, but often they are intended for the middle classes, which is not a section of society as big as the working class and which can afford to pay for its own electricity anyway. These programs leave the preponderance of the members of society stuck with the grid. The new British proposal FITS is like this.

Other countries have so-called ‘Green Options’, meaning that you can choose to pull energy from producers of electricity from users of renewable resources only, which is great as far as it goes, but the end user is still stuck in the system of being on the grid and being subject to price hikes and power cuts.

If you truly want to get off the grid, do away with monthly bills and recover your freedom from the fat cat oil and electricity suppliers, you have to take a radical approach. The first step is to work out your electrical requirements.

Calculate the coldest and the hottest month and use the dearest plus 10% as your objective. The fact is that it could take you years to get off the grid, and by then white goods will be using less electricity than they do now anyway. You can also sell your surplus electricity back to the grid for real satisfaction.

The cost of the professional installation of solar energy systems can be exorbitant and take twelve years or more to recover, but if you assemble and install your own bank of solar panels, you can more than half that time frame. In fact, it is possible to decrease the cost by as much as 75%, if you are willing to assemble and install the solar panels yourself. This is a job that most capable teenagers can do, given the right plans or schemas.

The best idea, is for you to read up as much as you can on the topic, because there are several routes you can go. The main ones, using solar panels or other means of renewable electricity, are: remain hooked up to the grid, using your own electricity first and selling back any excess; remain linked up, but send surplus electricity to your own batteries, which could be an electric car; or you can get off the grid altogether.

The ultimate goal, in my eyes, is to supply my house with all the home-made electricity from solar panels that I require, to charge my hybrid car’s batteries from the same source and to resell any surplus back to the energy grid.

What a dream!

Owen Jones, the author of this article, writes on many topics, but is currently involved with a favourite subject, types of renewable energy. If you are interested in Sustainable Energy At Home, please click through to our site.

Wind Turbines – Make Your Own Electricity

 

What is your first impression of wind turbines? Do you think that the people who make them must be highly qualified technicians who have studied for years?

What would you say, if one of your neighbours said that they were going to assemble their own wind turbines in order to produce their own electricity?

The fact is that it is not really very hard to make a wind turbine. You certainly do not have to have been to university to do it and you do not have to be an amateur electrician either. You will, however, need a good set of plans in order to put up an effective wind turbine.

There are various sources of plans for wood turbines. You could go to a hobbyist shop, a DIY warehouse or the Internet. If you search on the Internet, look for a web site that specializes in sustainable energy technology.

Once you have you instruction booklet, handbook or plans for making wind turbines, you ought to study it well and get any questions you have answered on forums on the Internet.

If you think that I am exaggerating how simple it is to build a wind turbine, do not forget that people have been making windmills and water pumps for hundreds of years without the advantage of power tools or modern materials.

The only difference between those early devices and a wind turbine for producing electricity is the addition of wiring and a coil, which you will buy anyway.

The basics of making a wind turbine include constructing a tower to put it on; installing batteries to take the generated power; the fan and the tail assemblies. The tools that you will require to accomplish this are pretty basic too: bricklaying tools, carpentry tools and a few spanners, but that really depends on how much you sub-contract out.

You will almost surely have to buy the turbine, fan and tail section yourself as one element, because, if you want a high-powered unit, this section will have to be professional, not that it cannot be manufactured locally.

You will be able to maintain it yourself as well, if you want. These fan blades can be 1.2 metres (4 feet) in length each, which is something that you will have to bear in mind when constructing your tower.

You may require a bit of professional assistance when you build your first wind turbine, but use the experience to learn as much as you can, so that you will be able to be more independent on your next one. You could even turn the experience into a profession, because there is a chronic shortage of people who know anything about wind turbines.

Owen Jones, the author of this piece, writes on many topics, but is currently involved with a favourite topic – alternative power sources. If you are interested in Sustainable Energy At Home, please click through to our site.

It Is High Time To Make Use Of Renewable Solar Energy

 

The very life of every living thing on Earth is dependent on the Sun. Without the Sun, we would not have animal or plant life, which supplies us with food and companionship. Without the Sun, we would have died out in earlier days, without the Sun these days, we may last a while, but it would not be much of a life.

The Sun offers us much more too. What we now refer to as ‘alternative, sustainable energy’ was the only form of energy available to the world for thousands of years. Really, nuclear and even oil generated energy should be called alternative, but we have forgotten a lot. Especially in the West.

It is not essential to go back to the ways of our farming ancestors and get up and go to bed with the Sun, although it is still the way of life of the majority of the world’s population. No, we have technology and we should use it. At the moment, we use sophisticated technology to find more lakes of oil and dig ever deeper in more and more inaccessible places to take it from the Earth. Or worse still, we go to war to steal or ensure supplies resulting in the death of thousands of young soldiers and the desolation of millions of ordinary, innocent citizens.

We have to use our fantastic advances in technology to produce electricity out of thin air. Literally. We already have the technology to create solar panels and wind turbines in order to produce millions of kilowatts of electricity from the Sun and the wind. There is other technology that can make use of the motion of the seas and the natural high temperature of the Earth itself, although some of these are only accessible in some areas. For instance, wave power can only be taken advantage of, if you live on the coast.

However, solar and wind power can be utilized in any region of the world with varying levels of success. A combination of the two types of power generators is probably best for most areas. These technologies have been developed more or less haphazardly. What if we had spent our war chests of billions of dollars on advancing these technologies, instead of using them to flatten cities and kill people?

However, the technology is there to produce enough electricity to power a household. It is clear that we cannot wait for our governments to do much more for us. Their viewpoint is different, they do not want to harm big business. And the big electrical providers would be damaged if a significant number of people generated their own electricity and came off the grid.

The rich representatives in government are stuck between a rock and a very hard place. They recognize that oil is running out; they know that much more electricity will have to be generated from the wind and the Sun, but they do not want to damage the share value of big industry.

Picture, what a hard time the energy producers would have explaining why the cost of electricity had to go up because he Sun or the wind had increased its charges. Whereas it is easy to defend when they say that OPEC has increased the price of oil. But, we are in OPEC, aren’t we?

Owen Jones, the author of this piece, writes on many topics, but is currently involved with a favourite topic – alternative power sources. If you are interested in Sustainable Energy At Home, please click through to our site.