Posts Tagged ‘Photovoltaic’

Photovoltaic Solar Energy

Tuesday, February 9th, 2010

One of the more significant emerging technologies with solar energy has been photovoltaic (PV) electricity. Photovoltaics use special materials to convert solar energy directly into electricity. This electricity can be used immediately or stored in a bank of DC batteries.

How photovoltaic panels convert solar energy is a subject of advanced physics. In simple terms we can say they take advantage of new age materials and a phenomenon called the photoelectric effect. Solar energy on the atomic level displaces electrons, which in turn creates the flow of electricity.

Photovoltaics were originally developed as part of the space industry. The long life of the panels combined with no moving parts made them ideal for space bound equipment. Solar energy is much stronger outside the Earth’s atmosphere which also helps.

In recent times photovoltaic panels have been converting solar energy for residential homes in far away places. The cost of a photovoltaic array will often offset the costs of routing power transmission cables from the Electrical Grid. When this distance exceeds 1 mile, then the prospects of converting solar energy with photovoltaics makes more and more sense.

There are two types of radiation that are important and contribute to solar energy. The first is beam radiation, which are the direct rays of the Sun. Beam radiation is the strong warm rays we feel on a clear sunny day.

The second type of radiation is diffuse radiation. Diffuse radiation is scattered radiation, and is what we experience on a fully cloudy day. Diffuse radiation is not very strong, but still contributes to the total overall solar energy.

In order to use photovoltaics wisely, one should be in an area abundant with solar energy. Deserts are obvious candidates, in addition to semi-arid and tropical climates. Northern and coastal climates are tougher decisions due to extensive cloud cover, fog patterns, and rains in the winter. Each case should be considered respectively, however, as not all coastal climates are the same.

Photovoltaic panels come in several sizes and voltage ratings. They should be wired in series or parallel as required to meet the inverter / storage bank power requirements. PV panels have maximum system ratings, and so these should be verified before wiring a large array. New photovoltaic panels will convert solar energy between 12 to 14%, with more cutting edge and difficult to obtain units pushing 20%. Life expectancy will typically exceed twenty years.

One downfall of photovoltaic panels is that they can involve significant up front investment. This is due, in part, to the high purity silicone materials used in their construction. New types of panels are under development, however, and the price of photovoltaics is expected to drop in years to come.

Using photovoltaics to convert solar energy can be a complicated decision. One must consider the cost of local Utility’s rate of electricity, and know the solar energy data for their location. In some cases, as with distant properties and transmission cables, the decision can be easy. But in most cases, an investigation of the payback period will be necessary to know if one is making a cost effective decision. In times of uncertainty and surging fuel costs, the simple piece of mind of energy independent technologies may be well worth the effort.

Walter Hull is a recognized expert in solar power systems. For a limited time you can get his free checklist to solar power from your own backyard.

Solar Panels For The Home For Savvy Homeowners

Monday, December 28th, 2009

An energy saving, solar house with solar panels for the home can ensure a better life, costing less, and also more ecological and sustainable. The sun’s energy resources could be the solution for your household’s electricity and heating needs. In fact, this is a great idea to reduce the footprint of your house’s energy consumption with solar energy, saving you money.

When sunlight enters photovoltaic solar cells, it is turned into an electric charge. The electricity will then be directed to your house’s circuit. This flow, or electric current, can be used to light homes, make the heater work, or run any electrical or heating device.

Solar panels for the home s can be installed on a roof and in other convenient places, such as a courtyard or leaning against a wall. The electricity production capacity of solar panels in the home will depend on weather conditions, but the right system will take care of your energy needs even on a cloudy or rainy day.

For optimum energy performance, you should put solar panels for the home in a thirty degree angle, towards the south. Clearly, there ought to be no obstacles blocking the sunlight, or reducing the time the cells are bathed in sunlight.

The way solar panels work is relatively easy to understand. Sunlight is either turned directly into heat, by heating hot water in small tubes, which is then used for heating, washing, and cooking, or solar energy is turned into electricity first by employing photovoltaic cells.

While the initial costs of setting up solar panels for the home may be a bit steep, in the long term relying on solar energy will result in saving a lot of money that would otherwise be spent on utility bills.

You can buy ready made panels, but you will be amazed to discover how much cash you can save, if you build and install your own source of solar energy from the basic materials. Learning the ability to build your own solar panels is a fantastic thing, as long as you have professionally written information just for this purpose, and it will greatly reduce the cost of initial installation.

The least expensive and most effective way to produce your own energy is to find the right, detailed instruction guide, which will show you how to do this work for far less than a handyman would ask you, It’s even better if in addition to the guidelines on solar panels for home, the guide also contains instructions for building windmills and other renewable energy sources for home.

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On The Right Guide To Make A Solar Panel

Thursday, December 24th, 2009

You would like to make a solar panel? This is not unattainable, but as building solar panels requires some precision it is not easy either, especially for people with little DIY experience. But you will be able to do it if you read this article, and follow the instructions in the recommended resource guide.

With the instructions to make a solar panel by yourself you will be able to reduce or even eliminate your regular electricity expenses. That said, building solar panels is an intricate procedure. You need to get all the needed equipment and, more crucially, the correct blueprints and technical advice, right from the start.

However, the plan will be able to make solar panels, from raw materials, auxiliaries, if not installed professionally. Once you know how to make solar panels, you will be able to create and perfect the system and make a whole home electricity network.

Each panel will cost you less than a hundred dollars, assuming that you will be in a position to acquire the materials for little expense. Don’t forget that you will also need some simple handyman tools and a voltage reader. Tools can be bought at any hardware store, if you don’t have them already.

When you deal with power appliances like solar panels, you need to remember to protect yourself from electrical shocks when working. Do not start without clear, complete, do it yourself information on how to use solar energy and storage batteries. This is why a guide to make a solar panel needs to be specific enough to make your entire process clear, and why the necessary criteria for a complete guide is to give you all instructions, safety included.

Do not be discouraged by all this, given that, as a practical and up to date self-builder, you can easily make a solar panel, but it is important at the beginning to have all the correct instructions. While solar panels on your roof can save you a lot of money on bills, you may also waste time and money if not carefully prepared in advance.

When choosing a home study guide, ensure that it is written by experts with the sole aim to show the way for non-technical people on how to make a solar panel and achieve home energy independence.

To build a correctly working solar panel for little money and enjoy the project as well, as many homeowners have, you could get the following information package, which also includes data on home windmill projects and other ways to make your house truly self sufficient from an energy point of view.

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Cost Of Solar Panels - Real Or Apparent

Sunday, December 13th, 2009

The cost of solar panels can be very large, and many people find it hard to justify the price in advance and do not dare to change their sources of heating and electricity. Although it is a serious investment, the installation of solar panels can save you a lot of money in the long term, if you just consider all the implications.

Because the price of necessities like food, electricity, gas and water, you need to save where you can. This is another barrier for many homeowners who are considering the cost of solar panels when wanting to install a solar system. But since the solar panels generate electricity from the sun, once installed they start creating usable energy for your immediate family right away.

This will reduce the electricity bill immediately, and perhaps even eliminate the bill. Some extra production of electricity, will even result in the power company will paying you regular cheques.

With solar based heating and electricity available basically for free, you can also reduce your gas bill substantially. Why not get rid of the gas stove and get an electric one- and get rid of the gas water heater? That can be replaced by an electrical system. If you have a gas dryer, too, that can be replaced with an electric counterpart. And since you are generating their constant electricity, you will not have to worry about a drastic increase in electricity bills. So don’t be afraid of the cost of solar panels, you will eliminate a large part of your gas bill, too.

In hot climates, summer air conditioning increases electricity bills enourmously. And with more cars, which are produced with rechargeable batteries, it won’t take long before the bills for electricity increase even more. Here too, the cost of solar panels can be offset.

There are some other benefits that come with having your own solar system, too. For instance, in the case of a downpour, your neighbors who are still paying for electricity are vulnerable to power outages, surges, and damage due to this. But you won’t be, if you have installed a solar system.

Good solar panel systems are designed to store all the electricity generated by additional panels of high capacity deep cycle batteries. Most professional options in the design and installation of solar panel systems are configured to provide power for several days at a time without sunlight and should not be affected even through the worst of the storm and power outages.

By now you will certainly appreciate that it makes sense to accept the cost of solar panels and to get a system. People in your area will envy you and will ask you for advice on hoe to install solar panels, once they see how well your system works, and how much money you will save with it.

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categories: Cost Of Solar Panels,Make A Solar Panel,Solar Panels,Solar Energy,Solar Power,Photovoltaic,Solar,Home,Home Improvement,Environment

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