Solar Power for the Home

Installing solar panels for home use is nothing new. It has just been relegated to the background in lieu of rising cost of real estate; newer more advanced building materials, design and the limitation of resources.

Lately, as the conventional sources of energy became more expensive, homeowners are once again turning to the sun for energy requirements.

While solar energy is free, the device that will convert it to run our appliances is not. To provide solar energy for the home, solar cells called photovoltaic made from semi-conducting materials, are grouped into modules. These solar panels are mounted on rooftops, yards or open spaces where it can capture the maximum amount of sunlight.

Whenever possible, the panels will be installed facing south to get the most out of the sunlight but tracking systems are also used to follow the direction of the sun. The solar panels collect the energy from the sunlight. The process basically is that when the panels are exposed to sunlight, the electrons are separated form the atoms. This movement of the electrons creates electricity.

To store power, pumps are often used - circulating water in the cells. The water goes into a storage tank where the power is stored, ready for use. Sometimes, the use of gravity is employed if it will just the same store the heated water in to the tank.

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Powering the homes by solar means will still, for a while be augmented by a local power distribution agency. To many, this is already a good starting point. Homeowners that feel that the high cost of powering their houses through solar power, is justified when compared to the price that is now being paid for conventional electrification method where horrendous amounts of CO2 are being dumped into the atmosphere just to generate a pitiful amount of electricity.

If you and your family are more concerned about 'living green' this year, you'll definitely want to learn more about solar energy. There are a few solar energy sources that your family can choose from, and you'll save lots of money every year on electricity bills--plus you'll be doing your part to care for the environment.

Solar energy refers to the light and heat from the sun that is 'trapped' by humans using a number of different technologies. Other sources of energy, such as wind power and wave power, along with hydroelectricity, are often used for homes and businesses that are 'going green', so that all of the building's systems will be running efficiently with sources from nature. This is partially due to the fact that only a small amount of solar supply is actually used by humans, since the sun is millions of miles away, and some parts of the earth do not receive sunny weather often. The practice of building in a way that will capture natural sunlight has been a practice of architects for centuries, and dates back to ancient Greek and Chinese cultures.

One of the solar energy sources that your home can benefit from using the tailor-made solar panels for home use. This are installed in the home at a place where the sun would naturally shine, so that electricity will not have to be used in the area. The natural light is also ideal for plants that you may have growing in the home, and reduces the amount of money that you will spend on manufactured electricity every year. Other solar energy sources include panels, pumps, and fans. These instruments promote solar technology by using passive or active methods of capturing sunlight for energy. Active solar energy sources also include photovoltaic panels, which are more common for factories and larger businesses. Passive solar energy technologies involve the selection of materials with positive thermal characteristics. These methods create space that will naturally circulate air, and there are a number of construction companies that work to position a building toward the sun before it is built.

If you want to find out more about solar supply or solar energy sources, you should talk to a representative from your city council. This will give you the details you need about urban planning in your city or state, and will let you know how much money is being spent on electrical energy and new construction. You may also want to get in touch with housing developers and builders in your area to learn about how much money you'll be saving by building a solar-powered business; corporations like Pulte and John Weiland Homes may be able to help.

The earth receives more energy from the sun in one hour than the power requirement of the world for the whole year. Solar energy is free, renewable, clean and sustainable. We know how to harness it and we know where to use it best. Below are the different uses of solar energy.

Solar energy can be used hand in hand with your current electricity provider. This is ideal to those who live in places where sunlight does not shine year round, to those who live in areas where electricity is cheap and to those who just want to use solar energy as a backup to their existing source of power. The idea is that if you have 2 sources of power, you can get uninterrupted power supply all the time.

One of the benefits of having a solar energy system at home is that you can turn your electric meter backwards. This happens when you produce more energy than you use. The excess power that your system generates is sent out to the grid, which will be used by other households. As a result, your electric meter turns backwards and your electric provider will pay you for the amount of energy your system has produced.

Installing solar panels for home use is easier and less expensive than you think. This rapidly advancing technology is changing the way people feel about being environmentally responsible. Although choosing to install solar panels is a great idea, there are safety issues that you should be aware of. In this article, we'll shed some light on the potential dangers of building a solar home.

The biggest benefit of solar power is that the fuel is free and the source is unlimited. There is little to no maintenance required with solar panels because there are no moving parts. In fact, most manufacturers include warranties on their products that are good for up to twenty-five years. In the event of a blackout, solar power is not affected. That means that during extreme storms, your family can still enjoy all the comforts of your solar home. Environmentally speaking, the use of solar energy produces no emissions because there is no burning of fossil fuels. Solar energy prices are steadily declining and as new technologies emerge, the costs of solar systems will continue to decrease.



Even though solar power home kits have become more commonplace in recent years, these kits can be dangerous. Because the instructions in these kits are laid out in what seems to be easy-to-follow steps, some people forget the fact that they are working with electricity. To be safe, a person who purchases solar home power kits should read the instructions thoroughly. It is often safer to hire a professional installer or electrician instead of installing the kit yourself. Because professionals have received more training, they are much more capable of handling the risks that come with using solar power home kits.

Creating a solar home is environmentally responsible, but the parts themselves can eventually pose a problem to the earth. Most solar cells contain cadmium, which is a highly toxic substance. If the parts aren't disposed of properly, then the cadmium could cause serious contamination. Adequate access to sunshine is another consideration. While most places have adequate light to operate solar power, locations in the extreme north and south go without sunlight for a month at a time.

While solar power is a huge step forward in reducing our dependency on fossil fuels, there are some drawbacks. Like with any investment, consumers should thoroughly research their options and consult professionals. Solar energy is a rapidly advancing technology, so it's reasonable to assume that the issue of cadmium contamination will be addressed. It's important to remember that building a solar home is not just a financial investment, but an investment into the future of a clean planet that will sustain generations to come.

Harnessing the power of the sun's ray to create energy to power our house is very appealing. But the question is, "Is everything about solar energy good?"

Looking at the current price of fossil fuel-based electricity, it is quite impractical to convert into solar energy system. However, with the growing concern on the state of the earth, there is really a need to find other means of energy aside from what power plants are using right now. Where do you place yourself?

Whether you are an advocate of clean energy or simply care about where your finances go, looking at the pros and cons of residential solar power will help you decide on whether to convert or not.

Pros



Solar power is free. Did you know that the earth absorbs 174 pettawatts of solar radiation? This means that we have more than enough source of free energy to power every house in the world. Unfortunately, most of our energy is still drawn from oil, gas and coal. But in recent years, there is a steady increase of demand for alternative and renewable energy like solar power. It is estimated that the demand for alternative sources of energy will increase by 53% between 1999 and 2020.

Solar power is clean, renewable and sustainable. Because the energy created from the sun's rays does not produce byproducts like those from fossil fuel power plants (sulfur dioxide, nitrogen oxide, mercury or carbon dioxide), it does not contribute to pollution. Accordingly, the increase in the use of solar energy and other alternative forms of energy will decrease the demand for greenhouse gases-producing power plants.

The price of photovoltaic cells is steadily decreasing. The demand for solar panels has risen by 57% in the United States in 2007 and is steadily increasing on a monthly basis. The increase in demand results to the improvement of solar technology as a whole. The prices of photovoltaic cells have declined on the average of 4% every year over the past 15 years.

Tailor-made Solar panels for home use can be installed on most rooftops, eliminating the problem of finding a suitable place for installation. Solar panels require little or no maintenance. The original photovoltaic cells technology is used for most satellites orbiting our earth today which are not maintained at all. Many solar panel manufacturers give 25 to 40 years warranty on their products.

Because most areas of the country receive a substantial amount of sunlight throughout the year, solar panels can be installed anywhere.

Many states in the country give tax credits and rebates to households who want to install a residential solar power system. Check with your state government if solar panels grants are available
.

Cons



While the prices of PV cells are in constant decline, the cost of installation is substantially high compared to the current electric cost. But the good thing is, after your initial cash out, you don't have to pay every month on electric bills for the rest of your life.

On areas cities and areas with heavy pollution problem, solar energy may not work as fine. Weather can also affect the efficiency of solar energy. If it is raining, overcast weather or if there is a hurricane, the solar panels' efficiency is decreased.

You are only producing energy during day time.

These are general pros and cons you might encounter when considering the conversion to solar energy system. It would be best if your decision is based on location, cost, budget, rebates, tax credits and practicality.

Solar energy can be used for a variety of everyday tasks, including cooking. Because of the ease of converting light energy into heat energy, the solar cooker is a popular DIY (do-it-yourself) solar project. A simple solar cooker is easy and cheap to make.

Before we get into the specific instructions, let's talk about the different types of solar cookers that you can make. Three main categories of solar cookers exist: panel, box and parabolic cookers. Each have their own advantages and disadvantages.

A panel cooker consists of several shiny panels, clustered around the pot. The shiny panels are angled in such a way that they all reflect sunlight onto the pot. The panel cooker is possibly the easiest and cheapest to make. Being collapsible, it can be effortlessly transported. However, it can only cook one or two pots of food. Furthermore, it cannot attain high temperatures.

A box cooker comprises of a box lined with shiny material, covered with a sheet of glass. The food is placed inside the box; then the glass lid is used to seal the air inside the box. Often, the box cooker has an additional, reflective lid, which is angled to direct sunlight into the box. Advantages of a box cooker include its ability to cook large amounts of food and its ease of construction. However, the box cooker cannot be used to fry foods.

A parabolic cooker consists of a parabolic cone, lined with reflect material. A parabola is a shape with very special properties. It is able to focus all incoming light onto one single point, known as the focal point. Because of the convergence of light energy, the focal point can attain very high temperatures. Logically, the pot of food is placed at the focal point.

The parabolic cooker can attain very high temperatures. It can cook food as fast as a conventional stovetop. On the other hand, it takes more skill and time to make. The intensity of the focused light can also harm the eyes.

Before you embark on a solar cooking project, try building these two solar cookers first: a simple box cooker, and a quasi-parabolic cooker. For the box cooker, you need: a cardboard box, tinfoil, and a sheet of glass.

Line the cardboard box with the shinier side of the tinfoil. Try to keep wrinkles to a minimum. You want the tinfoil to be as flat as possible. Otherwise the efficiency of the reflection is decreased. Place a pot of food inside the box. Lift up the lid, and place the sheet of glass over the food. Now let your solar cooker soak up the sun. The food should be cooked in a couple of hours.

For the quasi-parabolic cooker, you need: a large salad or fruit bowl, tinfoil, and a small ceramic bowl. Line the inside of the bowl with tinfoil, again keeping wrinkles to a minimum. Place the small ceramic bowl on the bottom of the larger bowl. Now balance a small pot of food on top of the ceramic bowl. This is to elevate the food to the focal point. Use this cooker at noon, when the sun is directly overhead.

Some classifications of solar technology are active, passive, direct and indirect. Active solar systems use electrical and mechanical components such as tracking mechanisms, pumps and fans to process sunlight into usable outputs such as heating, lighting or electricity. Passive solar systems use non-mechanical techniques of controlling, converting and distributing sunlight into usable outputs. Direct solar generally refers to technologies or effects that involve a single conversion of sunlight which results in a usable form of energy. Indirect solar generally refers to technologies or effects that involves multiple transformations of sunlight which result in a usable form of energy.

Solar technology has impacted a number of common practical products. Residential solar products have proven themselves to be quite reliable. A thermal mass is a body that absorbs and holds heat. In the context of solar energy, it is a mass designed to store heat during sunny periods and release heat when sunlight levels are reduced or unavailable. A properly sized thermal mass will smooth out temperature swings and help keep rooms at a comfortable temperature throughout the day and night. Many homes use a solar water heater instead of oil or gas to heat water. The solar powered car is expected to be the next great advance in solar technology.

The greatest benefit of solar technology is that it produces no emissions. Solar powered products have become so small and commonplace that consumers are using solar power without even realizing it. Some calculators are powered by a small solar cell instead of a battery. Many business and government buildings are incorporating solar panels into their design. Using renewable energy sources to power homes and businesses will soon become the norm. It is believed that within the next 25 years, most people will probably be using alternative energy sources to supply all of their power needs.

The greatest advantage of solar power is that the fuel is free and inexhaustible. The total amount of energy irradiated from the sun to the earth's surface is enough to provide more than 10,000 times the annual global energy consumption. However, governments across the world are overlooking this tremendous resource. It is up to the people to use solar technology and take the lead in saving our environment.