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Table Of ContentsYou Need a PV System to Generate Solar Energy 4 An Overview on the Interesting Facts about Solar Energy 7 Analyzing the benefits of solar energy 10 Arguments against solar energy 13 Countries on the helm of solar energy technology 16 Facts about Solar Energy, Some Things to Ponder and Why 19 How to Conserve Solar Energy through Your Little Ways 22 How Does Solar Energy Work 25 Net Metering and Solar Energy 28 Solar energy in households 31 Solar energy simplified 34 Solar Energy, How Does It Benefit the Agricultural Sector 37 Solar Energy is the Future 40 Technologies for harnessing solar energy 43 The downsides of solar energy 46 The future of solar energy on transportation 49 The Future of Solar Energy, How It Looks and How It Affects Nature 52 The Benefits of Solar Energy 55 The History of Solar Energy 58 The Pros and Cons of Solar Energy 61 Things You Should Know Before Investing in Solar Energy 64 Using solar energy goes way back 67 What is Solar Energy 70 Wind power vs Solar energy an even match 73 You Can Have a Home Powered By Solar Energy 76
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Solar energy has been around for quite some time. In fact, now is the best time to get it if you want to cut your electric bill and do your share to protect the environment.
For that to happen, you will need to buy a PV system. This is designed to reduce or eliminate the amount of electricity you purchase from the utility especially when there could be a price increase in the next few months.
The best part about the PV system is that it generates clean electricity which is clean, reliable and renewable since it does not emit any harmful gases into the atmosphere.
The PV system must be placed in an area that is free from any obstruction otherwise, it will not be able to capture the sun’s rays. A lot of experts say that the south facing roof is best while the east and west is sufficient. If the roof is not available, it can be mounted on the ground.
You should know that PV systems come in various sizes so you should get the one that matches our electrical needs. If you consume about 6,500 kilowatts a year, then a PV system within the 3 to 4 kilowatt range is right for your home. You can measure this by reviewing your past electric bills and making some projections.
Naturally, the size of the PV system will determine the amount of space needed. If you do not use that much electricity, 50 square feet may be sufficient. However, a larger system may require a little over 600 square feet. Just remember that a kilowatt of electricity requires an area of 100 square feet.
Solar energy is converted with the help of an inverter since this is what changes direct current to alternating current. You will also need batteries so excess energy may be stored so you can still use solar energy during the evening or during a power outage.
The size of the PV system is also in direct proportion with the cost. Most cost from $9 to $10 per watt and when you include installation, the bill may reach be from $10,000 to $20,000.
The cost of the PV system should not discourage you from investing in solar energy. People who use it are able to get tax rebates and it will also increase the value of your home. With that, the only thing to do now is to call a reputable solar energy provider.
One other thing you should know about the PV system is that this should also be connected to your grid. For this to work, you have to enter into an interconnection agreement with your utility.
This agreement will address the issue with regards to the terms and conditions under which your system is tied up with them. This also includes what is known as net metering which allows you to bank any surplus electricity that your system generates on the electric grid in the same manner that you will be charged accordingly should you consume more electricity than what you have banked.
You need a PV system to generate solar energy. You just need to know what size of a system you require so this can be installed by your solar provider.
There are lots of interesting facts about solar energy. Educating yourself about this will prove to be beneficial in the long run. You can share the information to your loved ones. You can teach them of ways on how they can help to conserve the energy. You can also do your share to help this method to advance if you are a genius in the field. But if you are an ordinary citizen who only wants to enjoy, then feast on. But remember that you also have responsibilities to the environment that you must accomplish in order to do your part in the whole scheme of things.
The Facts that Matter
1. Solar radiation makes it possible for the energy coming from the sun to be used as power source and energy that can in turn be used for many purposes. The technology on this aspect is characterized in two ways. They can either be passive or active. This will depend on the methods that are used to get, convert and allocate sunlight.
What are active solar techniques? These utilize pumps, photovoltaic panels and fans to renovate sunlight into useful resources. These aim to increase the energy supply that is why these can also be referred as supply side technologies. The passive solar techniques, on the other hand, use only selected resources with constructive thermal properties, utilize the kind of spaces that can circulate air naturally and apply the position of buildings and structures towards the sun. These will lessen the need for other sources and can also be referred as the demand side technology.
2. Solar energy has influenced many factors that surround people. This can be referred in planning and designing buildings. This process can be rooted back at the early days of the architectural history. The Greeks and the Chinese first used such factor in building and constructing their architectural pieces and on their planning methods.
3. Solar energy is also being utilized by the agricultural sector because they rely heavily on its benefits in order to gain more harvest. They developed ways in order to plant the kind of crops that will grow according to the amount of sun that they will be getting for the season. This can also be used to dry the crops, pump water, brooding of chicks and to dry animal manures that can later be used as fertilizers.
4. On seasons like the Little Ice Age, fruit walls were used by French and Chinese farmers to be able to collect and store solar energy to help them keep the plants warm and to speedy up the process of ripening of fruits. These walls serve as the thermal masses. The fruit walls that were first developed were perpendicular to the ground and faced the south direction. Over time, innovations were done and slopping walls were used to gain more advantage from the sun.
5. To convert the solar light into heat, people have developed greenhouses.These enable the production and cultivation of specialty crops all year round. Such innovation made it possible for crops to be produced in untimely seasons and in places where you think that those plants won’t grow.
And these are only some of the interesting facts about solar energy. These give you a good peek at how wonderful nature is and how people have developed ways to use it to advance in many aspects of their lives.
We all know that using solar energy is a good thing to do. We have heard, and there are quite a number of them, all about the benefits of solar energy and we can’t agree why we can’t turn this alternative form of energy source to a primary one. But despite the advantages, solar power has yet to fully make it in the mainstream. Let’s go back and discuss a couple of the advantages of solar energy and see why keep going back to fossil fuels for energy resource.
In the long run, solar power saves money. Initial costs of installation and operations may be more expensive that other energy forms but after settling the expenses, you have an energy resource that is free. Nobody charges for using sunlight, right? The return of investment can also be shorter depending on how much energy you use. You won’t spend too much on maintenance either plus those photovoltaic cells can last for 15 to 20 years. There are no mechanical or moving parts to oil and maintain nor are there parts that need to be replaced yearly.
Of course solar power is environmental friendly. First its renewable not like fossil fuels which according to studies will be gone in four to five decades. The process of converting energy to usable electricity does not involve the release of toxic chemicals which can harm the environment. Carbon dioxide, nitrogen oxide, sulphur dioxide, lead, and mercury emissions will be a memory of the past when everyone goes solar. Relying on the sun for power also helps reduce global warming.
Aside from the toxic wastes and pollutants, using solar power will limit other aspects of the energy industry like hazards of working with and transporting oil or natural gas. Also, other health risks are present in the use of other fuels like kerosene and candles which are still popular in third world countries. With solar energy, these risks will be minimized if not totally eliminated.
The use of solar panels is also good for remote areas where providing basic electricity services is troublesome if not totally impossible at all. Solar energy can be transported to far flung villages and once installed they can be left alone for years with little or without maintenance. Communities in Asian countries have successfully installed solar panels in their community and have been enjoying the benefits of clean and reliable power for years.
For a poor country, producing electricity through solar energy can mean independence from oil producing countries which controls the supply and prices of oil. With such independence, new policies on energy can be created which will maximize the benefit for its citizens. Countries will also not be wary on natural disasters which hampers delivery of oil. With this new found independence, countries can invest its national budget on other programs aside from purchasing oil from foreign sources.
There are several disadvantages of using solar power and one of which is the costs. But thinking about it in the long run, you’ll see that the benefits of solar energy outweigh the disadvantages. Plus, with the current development in the field of science and technology, solar power is becoming more and more convenient and it would not be surprising to find solar energy as a primary source of power in the next few years.
Between you and me, we know that solar energy is a good renewable energy resource and that we should start to utilize it more especially when the Earth’s fossil fuel reserves are slowly dwindling and will run out in 30 to 50 years. We better look at the various alternative energies and begin a fast tracking of development to hasten our independence on non-renewable fossil fuels. And solar energy is as good as any other alternative energy resource out there. However, several arguments against solar energy have been raised through the years. But probably the most convincing argument is the high costs of solar energy utilization.
The problem with solar energy is that you can only harness it during the daytime. And even when the sun is up, the sunlight will be interrupted by occasional cloud covers, rains, fog, and even smog. So in order to harness the sun’s energy we need equipment that can get as much solar power as possible at a given time and we need some way of storing that energy so we can use them without ay interruptions.
We do have the technology to harness the sun’s energy, convert it into usable electricity, and store them for future use. And that technology itself is the primary reason why solar power has not caught on even today. The process of making solar panels as well as the technology for storing that harnessed power remains to be quite expensive.
The good thing about this fact today is that due to the recent increase in the costs of fuel and gas, solar power is no longer a far fetched alternative. The gap between the costs has gone down considerably and hopefully in the near future, the costs of solar energy production will be quite competitive.
Furthermore, the costs of photovoltaic cells are indeed quite expensive that contemporary oil and gas equipment. But one of the flaws of the argument of costs is that people tend to limit their perspective of solar energy as to only referring to photovoltaic cells. There are other means of harnessing solar energy and not all of them are as expensive as PV cell manufacturing.
One way of getting the sun’s energy and converting it into usable electricity is the concept of solar thermal plants. In solar thermal technology, various solar collectors are utilized to generate heat which can be applied from the simplest heating and ventilation of houses to the production of massive amounts of electricity. The use of mirrors or lenses to reflect sunlight to towers equipped with liquids that heat up and produce steam. The steam then turns turbines which in turn generates the electricity needed.
The process adds another step compared to photovoltaics which converts solar energy directly into electricity. Nevertheless, solar thermal systems of power production is cheaper that the production of PV cells. For a larger consumer market, it seems that solar thermal energy is the way to go. Regardless, the point here really is to emphasize that solar energy has more to offer. The cost of production is a valid argument against solar energy but still there are ways around it. Costs can be minimized by using other techniques of harnessing solar energy or future developments in the field of science and technology will produce products that are more cost efficient that what are available today.
The US is not a leading user of solar energy for a very obvious reason: they can still afford to buy fossil fuels from the international market. In other countries the oil prices are ten times higher in the US and sometimes going for the alternative is a lot better in the long run. Today, more and more countries are looking at solar energy as a primary source of power. There are several countries which can be considered as at the helm of solar energy technology.
The number one use of solar energy is Germany. It captures almost 50% of the world market of photovoltaic cells. Nowhere else in the world can you find the most number of households with solar panels installed on their roof tops. Germany has this Renewable Energies Laws (EEG) which passed in 2000. The law certainly helped Germans feel the need to go renewable.
According to statistics, Germans invested nearly US$5 billion in solar photovoltaic systems and have contributed considerable in the growth of the solar energy market. Although most of the things that we see are solar panels, it doesn’t mean that Germany’s solar industry is not limited to the production of photovoltaic cells for electricity. Other notable usage in Germany includes solar panels for home water heating system. Some news indicate that the German solar hot water market earns fU.S.$1.5 billion per year.
The “solar park” in Arnstein, Bavaria, Germany is one of the biggest photovoltaic plants in the world. It became operational in 2006 and with more than 1,400 PV solar panels, it can produce 12 megawatts of energy.
The next biggest country in terms of usage of solar energy is Spain. The solar energy usage in the country, more specifically the photovoltaic cells usage, has a world market share of 27%. Spain has no sign of slowing down its aggressive and pro-active approach in solar energy. Solar fields are being constructed one of the latest ones is the 60 MW solar field in Olmedilla de Alarcón, near Cuenca.
There are other big solar plants in Spain and these include the solar park 12 miles outside of Salamanca, Salamanca, Spain which have 70,000 PV panels divided into three 36-hectare arrays. The arrays produce an output is 13.8 megawatts and has been powering roughly 5,000 homes since it opened in 2007.
And the rest of the world follow Germany and Spain. Japan and the US still have a market share in the photovoltaic world market. The two countries both have an 8% market share, a far cry from Germany and Spain. Nevertheless, it is quite important that countries continue to improve their status in the world solar market.
Other notable country that uses solar power includes Alegeria, Australia, Italy, and Portugal. Aside from the rich European countries, people in Israel and India are realizing the importance of having alternative sources of energy.
These are the countries on the helm of solar energy technology. But, other countries are slowly catching up. The government of Israel, for example, required all residential buildings to install solar water heating systems in the early 90s. Today, business establishments like hotels and office buildings are trying to use solar power as an alternative from using fossil fuels whose prices continue to soar in the world market.
India is facing a similar energy crisis and they are also looking at solar energy to get them through it.What are the facts about solar energy that you know? It is given that this comes from the sun. This was developed by people in order to take advantage and benefit from everything that the sun can provide. You can also easily guess the goals of these people why they opt to develop such technology. For one, they want to make lives easier to live. Second, they want to find other resources that people can use in their everyday lives. Maybe they also want to profit from the experience because if this will all be successful, people, businesses and industries will gain a lot from what is being developed.
During the first years of its introduction, people deem that this technological advancement can only be used by wealthy people. It used to cater mostly for the can afford types of individuals. What if it can heat pool and can run spas? Why should an ordinary John Doe care when he couldn’t find time to have a good rest because times are hard?
But the evolution of the solar energy is just starting. Nowadays, the benefits can be felt even by ordinary citizens. Researchers keep thinking of ways to arrive at this state. And this is proving to be good for everybody’s sake.
1. The scientists developed solar panels that can power up homes. They made this available not only for the rich and famous, but they sold the idea to governments. The latter used the innovation to bring electricity to people in their countries who still haven’t experienced to live in the comfort of having this kind of power source. As a result, many people experience how it is like to have lights. They have also resorted to businesses that can be aided by such technology. The maintenance is still on-going while the technology is still being pursued. But the fact remains that this has been made available even for the ordinary John Doe.
2. Aside from electricity, solar energy can be used to heat water and cook food. Life is really becoming easier as people find ways to achieve such state. While the developments are still under way, people are finding ways to make such resource available for everybody. Different organizations and government agencies help in making this product affordable for everyone no matter what your status in life is.
As time passes by, people will be able to develop more and more gadgets and tools to make lives easier. There will come a time when almost everybody can benefit from this. The first notion that the solar energy is only for the wealthy will cease to be remembered.
The responsibility now lies on to people’s hands to take care of nature. They must give back to nature for everything that they have also gotten in the process. Technological advancements can be better achieved if people will consider how these can affect the natural habitat in general. It is okay to get what people want and what people need. But this must always be done with precaution and by thinking of the effects that these will have on everything.
It is fun to learn some facts about solar energy every once in a while. These will excite you about the process. But more so, these must open your eyes to the whole scheme of nature and how important it is to take care of your surroundings to be able to benefit more in the long run.
As an ordinary person who lives according to what the day brings, have you ever thought about how to conserve solar energy? Do you even care? You may think you are an ordinary worker, or a simple wife or mother. Should you even care about such things? The answer is yes.
You must bear in mind that you are part of a whole spectrum of nature. Whatever you do will affect all the things around you. Everything must be conserved, including solar energy. Here are some suggestions to throw in your little efforts to achieve this goal.
1. Plant trees. Nature works wonders. Every element around us affects everything else. By planting trees, you will be able to maximize the energy coming from the sun. This will be directed to help the plants grow and produce harvests. With healthy plants and trees rooted to the soil, the soil will be firm. This will be able to hold its structure even in times of natural disasters.
2. Limit your use of the energy coming from the sun. With today’s innovations, there are lots of things that are being developed to use solar energy as a power source. The source may be free. But to be able to turn it to such power source, there are things that are utilized for this reason. If you will abuse the use of such technology, the crash of the materials used to put this up will be fast. This will take a toll on you especially if you rely a lot on this advancement.
3. Teach kids about the importance of solar energy. You can gain knowledge through research and through your everyday interaction with other people about this thing called the solar energy. You must tell your kids about its importance, they must be educated about it at an early age. They are the future of the nation. What you teach them now will be instilled to them until they grow old. At such a young age, they must know about how they can contribute to conserve energy.
4. Take good care of nature. This is the most important thing that you can do to help advance such cause. The sun can cause damage to people and nature if people won’t do the necessary steps to care for nature in the first place. There are lots of things that you get from the environment. It wouldn’t hurt to look back every now and then and see what you can do to give back to what it has already given to you.
The idea here is that everything in this life must be conserved. You cannot abuse the power that you posses to gain so much without even thinking how your actions affect the world around you. It is all right to go with the flow of the continuing advancement of the technology.
Look at the options available to you nowadays with regards to solar energy. This can be used to power homes and vehicles. This can give light, heat water and cook your food. This can give you satellite television and phones for supreme entertainment and communications enjoyment. This can give you luxuries like spas and warm water at pools.
You must learn everything on how to conserve solar energy so that you can do your part in making sure that such resource will be available as long as you live.
First, solar panels are installed over a flat surface like the roof of your home. Once activated, it absorbs the sun’s rays since the panels are made of semi-conducting materials such as silicone.
Electrons are then knocked off loose from their atoms so it can produce electricity. This process by which light is converted into electricity is better known as the photovoltaic effect.
From there, you now have direct current electricity and when this enters an inverter, it is converted into 120 volt AC which is the electricity needed to power the home. Of course this is connected to the utility panel in the house so the lights and the appliances will work when these are switched on.
If you are not using that much electricity from the solar energy generated, it is stored in a battery so will be able to supply the house with power during a power outage or at night. Should the battery be full, the excess electricity is then exported to the utility grid if your system happens to be connected to it. When your solar energy runs out, utility supplied electricity kicks in. The flow of electricity of solar energy is measured using a utility meter which spins backward and forward. It will go backward when you are producing more energy than you need and forward when you need additional power from the utility company. These two are only offset when you pay for the additional energy from the utility company. Any surplus is sod back to what is known as net metering.
A smaller version of this is used to power a water heater inside the home. Using the same principles, homeowners get to convert sunlight into heat to get warm water.
As you can see, transforming sunlight into solar energy is very easy. But why do countries like Germany and Japan use it more often than the US? The answer is because it is much cheaper for them to use this form of alternative energy compared to oil.
Also, although the US initiated this during the 1973 oil crisis, it is not as popular as it was back then because the government neither increased the budget in research for alternative forms of energy nor gave incentives so people will be encourage into doing that again.
Most state regulations also prohibit individuals from installing their own devices even if this is used to give you warm water. Chances are, you won’t even find anyone to do it so you will probably have to do it yourself. Just remember that if there is a problem with the plumbing, your insurance will not cover it. Should the state allow you to install such a system, you will not be entitled to the rebate.
Using solar cells is just one way to make the most out of solar energy. Your other option is passive solar energy which helps avoid heat loss so those inside will not feel too cold or too hot throughout the day. This is used by a lot of homeowners living in the southwest since they do not need that much insulation compared to homeowners who live in other parts of the US.
You can’t help but get into net metering when you decide to invest in solar energy because you sometimes consume more or less than what you actually generate. When you consume less energy, your electric meter spins backward, if you use more then it goes forward.
Net metering is simply a special metering and billing agreement between you and the electric service provider. You are eligible for this if you reside in a residential area and generate some form of energy using solar, wind energy or a combination of both. It also has to be located on your premises and connected to the grid.
For this to work, you need to have a meter capable of moving
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