Is Solar Energy an Option

Solar power shines at UNM (Photo credit: SandiaLabs)

No doubt you’ve heard plenty about solar power but always thought it was too expensive, aside from minor uses in the now popular garden lighting systems. However, with fuel prices climbing and solar cells becoming more reasonable, adding solar power to your home is a great, long term solution to high energy bills.

That isn’t to say they’re cheap. Before rebates, it typically takes 12 or more years for a homeowner to make their investment in solar panels back. That’s much longer than the average person is willing to wait. However, many states now offer rebates, so the final cost to the homeowner is much less than it use to be. The rebates vary from state to state, so it’s impossible to say how much of an impact they have overall. There may also be federal incentives.

Solar panels are also steadily becoming more efficient. They produce more energy than they used to. They require relatively little maintenance, many of which you may be able to do yourself. This helps to make them very cost effective.

Solar energy isn’t just for making electricity. You can use it heat the water for your swimming pool or heat your home. There are many options available for those who are interesting in building an energy efficient home without sacrificing comfort.

Solar power is much, much cheaper than it used to be, as prices have fallen by 90% since the 1970s. That doesn’t make it cheap - yet! - to install enough photovoltaic cells to power a house, but in some areas the incentives given to install solar cells cuts the overall cost to the homeowner about in half.

To decide if solar energy is right for you, take some basic figures into consideration.

• Check your energy consumption. You need to know how big a system you will need to power your home. Make sure you consider your highest consumption levels and the possibility that it will grow somewhat.

• Find out how much a photovoltaic system to meet your need will cost you. The size will depend both on your energy need and on the available sunlight (solar resource) in your area.

• Find out what rebates and incentives are available to you to help decrease your costs.

• Consider whether your system will be on the grid or off. On the grid has the advantage that you can sell when you have an excess and buy electricity when you don’t have enough, while with an off the grid system you have a battery to store your excess.

• Consider what the environmental benefits are worth to you. This is a personal factor rather than a direct economic one. It won’t save you money, but knowing that you’re contributing a little less to pollution might change how you feel about the expense.

Choosing to use solar power in your home is an investment you can appreciate on many levels. Over a number of years it will save you money as you generate environmentally friendly energy. It’s not cheap to get started, but when you combine the environmental benefits with decreasing your reliance on fuel costs you can certainly appreciate the possibilities.

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The Concept Of Generating Solar Power

Solúcar PS10 es una planta solar termoeléctrica por tecnología de torre, la primera en el mundo explotada comercialmente. Solucar PS10 is the first solar thermal power plant based on tower in the world that generate electricity in a commercial way. (Photo credit: Wikipedia)

Solar power can be generated in different ways. It is important that you learn more about the available types and the devices that can generate energy efficiently. There are already solar power generators available. You may order these online or via your local store. You can also choose to build your own generator. Find out more about solar generation by talking to the experts as well as asking others who have already tried building their own.

The Basics

Solar energy is very promising because it is renewable, which means that you can continue getting the power you need nonstop. The sun provides a large amount of energy that artificial units cannot sufficiently give. The small part of the power stems through to the earth in the form of sunlight. The rays that deliver the energy of the sun give both heat and power that can effectively be gathered and changed to other types of energy, such as electricity. Solar steam generators use solar power generation use the power of the sun to heat water and create steam to let electrical turbines work.

Another popular method of solar power generation is through the use of photovoltaic devices. The devices are made to use photovoltaic cells or solar cells to transform solar energy into DC electricity. There are plenty of ways to collect solar energy such as through parabolic troughs, solar panels, solar dishes and solar power towers that have reflecting mirrors. A number of solar collectors are categorized as either concentrating or non-concentrating.

Concentrating and Non-Concentrating

The concentrating gatherers use panels that are angled the right way to absorb the prime point of the direct rays of the sun. Non-concentrating gatherers are ideal for regions that have lower amounts of direct sunlight and absorb the energy rays of the sun from direct and various reflecting angles. Solar power generation is under heavy research for ideal materials and processes of collecting the sun's energy and utilizing solar generators to create both heat and electricity.

The Applications

Solar power can give several applications for businesses, homeowners and companies. Present solar power plants are not yet very rampant, but experts see a growing population as the technology and supply for energy supply that is both clean and safe becomes more available. Energy systems are now widely available to help utility companies provide power to offices and homes. The solar power delivered to utility companies and used by people for various electrical applications is used all over the globe. Solar panels can be used to heat and power different electrical appliances in the house. Solar panels can also be used to convert sunlight into electricity to power heating systems, lights and air conditioning systems.

The Cost

The cost of a solar power generator will vary depending on the size, materials and applications where it will be used for. Big power plants will have to spend millions to get the desired effect. Small households can only pay a few hundred dollars for the right setup.

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Everything You need to know about Solar Panels

Solar panel 3 (Photo credit: Photo Mojo Mike)

The solar panel is the most basic element of a solar power system. It primarily functions to gather sunlight during certain periods of the day to power different devices and structures. Depending on the size, solar panels can power anything from RVs to huge plants. It is also important that you understand how the panels work and where you can apply these so that you can get the most benefits. Here are some more details and info about the material.

What are Solar Panels?

Solar energy starts with the sun. Solar panels are also known as photovoltaics and are primarily used to convert light from the sun. These are made of energy particles called photons that are changed into electricity to power various electrical loads. Light from the sun is considered as a renewable energy resource that gives clean energy. Solar panels can be used for different applications like remote power systems for cabins, remote sensing, telecommunications equipment and to produce electricity for commercial and residential panel systems.

The History

The development of the solar energy began more than a century ago. During the early days, solar power was used mainly to produce steam for drive machinery. Henri Becquerel discovered the photovoltaic effect that allowed the conversion of solar electric energy. Becquerel's discovery triggered the invention of the first true solar cell by Charles Fritts in 1893, which was created by coating selenium sheets with a thin gold layer. The solar panel was then created afterwards.

Russel Ohl is an American inventor who used to work for Bell Laboratories. He patented the first silicon solar cell in the world in 1941. The first solar panel was produced by the same company in 1954 because of Ohl's creation. The new solar panels were used first in space satellites. During the 1970s, more people saw the use of solar panels through the newly designed calculators that can run easily under light.

At present solar panels and full solar panel systems are used to power different applications and structures. Aside from calculators, solar panels are now used to give power to homes, commercial buildings and other huge structures.

Letting the Solar Panels Work

Solar panels can gather clean renewable energy in sunlight form that will be converted into electricity. The average home has adequate roof area to let solar panels gather enough sun to be converted into DC current or AC current. Solar panel arrays can be sized to meet big requirements. The AC current can power loads in the house and other commercial buildings. It is important to consider the part of the house, as well as the right angle of the sun so that the solar panels can gather the most light over more hours of the day for optimum results.

You can choose to build your own solar panels or just order a pre-made one online. There are also a number of stores that offer solar panels, depending on the use you need. You can hire some experts to help you determine the right part of the house or structure where you need it installed. You should also talk to other solar panel owners to help you maximize the benefits.

What is Photovoltaics?

Picture of PV cells (Photo credit: Wikipedia)

Photovoltaics are considered an integral part of solar energy technology. PVs are now used in a wide array of settings, depending on the current needs of the user. More and more people around the globe are also starting to invest in these devices for a variety of reasons. You can get constant and renewable energy at a much cheaper cost, thereby power different devices and tools for your benefit. Here are some more tips and details.

The PV

The PV or photovoltaic cell is also known as the solar cell. It is a device that readily converts light into electric current via the photoelectric effect. The device is based on the discovery of Alexandre-Edmond Becquerel who realized that a number of materials let go of electrons when these hit rays of photos straight from light, causing an electrical current. The first solar cells were made by Charles Fritts during the 1880s. Even though the prototype selenium cells converted below 1% of incident light into electricity, James Clerk Maxwell and Ernst Werner von Siemens realized the importance of the finding. After the work of Russell Ohl during the 1940s, Calvin Fuller, Gerald Pearson and Daryl Chapin made the silicon solar cell in 1954.

These were the early solar cells that were very expensive and can reach efficiencies of around 4.5% to 6%. The highest efficiency PV cells produced were by Boeing and SpectroLab in 2009, with efficiencies of around 35% to 41%. There are also other multi-layer cells that closely resembled the device. These were very expensive too, and were only used in the most unique applications. Thin film PV cells were also created and made in bulk. These were more cost-effective and less fragile, with about 20% efficiency.

More Technologies

There are several technologies now, including a minimum of 14 photovoltaic cell types, like polycrystalline silicon, thin film, monocrystalline silicon and amorphous cells. Concentrating solar power also appeared in several types. The earliest application of solar cells considered to be very significant was being a back-up power source to the Vanguard satelilite back in 1958. The solar cells continued transmission for more than a year after the chemical battery exhaustion. The operation of solar cells during the mission was considered to be very successful and was duplicated in several American and Soviet satellites. PV has become the established power source by the late 1960s.

At Present

Today, Germany has become the primary PV market worldwide after they revised the feed-in tariffs for the Renewable Energy Sources Act. Spain has become the biggest PV market after 2007 after it adopted the same feed-in tariff structure. Spain installed half of the PVs all over the globe, accounting for about 45%. Concentrating photovoltaics are very new, which employ sunlight concentrated onto photovoltaic surfaces for electrical power production. Solar concentrators of different varieties can be used. These are usually mounted on a solar tracker to keep the focal point on the cell as the sun travels over the sky. Tracking can boost the output of flat panel photovoltaic by 20% during the winter and as much as 50% during summer.

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Is Solar Power a good Business?

Català: Planta de concentració fotovoltaica a Torregrossa (Lleida) (Photo credit: Wikipedia)

Solar power is quickly gaining popularity all over the globe. It is growing at a rate of 2% per year, and if the figures continue to grow, solar energy will be the preferred source of energy worldwide. Most modern nations are encouraging people to rely on this renewable resource so that they can save more and help conserve the environment. The trend can continue to provide benefits for decades to come if well-maintained. Here are some more tips and tricks.

About Location

First, you have to consider your current location. Are there a lot of clouds or does it rain or snow frequently? How much sunlight do you get per day? Some locations are very ideal for installing solar cell panels, while other people may do better with an electrical or battery source. Places that get around 4 to 6 hours of sunlight per day at least can do well with a solar energy system. Preferably, tropical and desert areas should start investing in a solar energy system to get the most benefits. Determine the angle of the sun to know which spots are most ideal for installation.

About Resource

Are there any available hardware stores that offer the needed parts for your solar energy system setup? Will ordering online be easy and convenient? Are there agencies or professionals who can offer reliable and quality services to install and maintain the solar cell panels. Are the materials affordable and of good quality? These are some questions you need to consider to get the best deals. Ordering online will depend on your location and the mode of transportation. If you think that setting up and maintaining the system will be difficult, it might be better to wait until the technology is more rampant in your area.

About Budget

Solar cell systems are generally costly in the beginning. Later on, you will realize that the costs will start to go down, since the energy stemming from the sun is free and available all the time. You should consider your budget by determining the area that needs to be covered with solar panels. Budget is vital so that you do not go overboard and overspend on things that you do not truly need. You should also consider the gadgets and devices that will be powered via solar means.

Longevity

A well-maintained solar energy system will last for 30 years if you keep it properly. Other setups may only last for a number of months or weeks at most if external conditions are very harsh or can damage the material easily. You can choose to create your own solar cells or just purchase from a source. The longevity of the setup will depend on the quality of the material, the use and applications. Price does not immediately equate to quality or longevity. You should know more about the available brands and check if there are any differences with regards to feature that will ultimately enhance the lifespan. Ask for recommendations from friends and others who have tried the setup.

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Solar Power is it for you?

Solar-Powered Outhouse II (Photo credit: Ed Bacchus)

The advantages of solar energy continue to grow with more pros and experts learning more about the process and features. Of course, there are also a number of consequences especially for the person who does not study much about the devices. It is important that you weigh the potential of having your own setup. You should consider the things you need to power, your location, budget, etc. Here are some more details about the energy.

On Availability

The good thing about solar energy is that it can be used anytime or as long as the sun exists. You can get the power you need day in and day out. Solar power is a renewable resource which means that you do not have to pay any bill or keep replacing parts to get the results that you need. The disadvantage in terms of availability is that you cannot access the energy if there is no sunlight. You cannot rely on solar power at night or in places that tend to be very cloudy for several months. People living in tropical areas or desert regions can rely on solar panels. However, those who experience very long winter months may not get the best effects.

Things to Power

Nowadays, solar energy can power a variety of objects such as homes, offices, cars, small light fixtures, toys and calculators. You can now rely on the sun to help you minimize utility and electric bills. You can even see a number of vehicles now solely powered by the sun. The disadvantage to the approach is that the power may tend to fluctuate depending on the sunlight available. Some devices may not work as well if the acquired energy from the sun is insufficient. In some cases, power may totally fail if solar energy is limited or unavailable.

On Installation

Even though solar cell panels are readily available in most hardware stores and the internet, not everyone is still capable of installing the devices properly. The initial setup costs may be very expensive for some individuals. Women may especially find that tasks hard to do unless they rely on a professional to do all the work. Installation will depend on several factors and will need careful study, such as the angle of the sun, the position and area where you need to place the solar panels and the number of hours to complete the project.

On Purchasing

Purchasing solar power systems may be more expensive for first-time buyers. Those who have been used to the old system may have to spend more initially. Overall, the cost for maintenance begins to taper down because the sun is readily available and free. Some people, especially those coming from the third world countries may not have available solar cell panels ready for purchase. They may have to order online. The professionals needed to install and maintain the system may not also be available in some areas. The fees, if ever, might be more expensive. You have to compare the options first.

Homemade Solar Panels

English: Solar panel Български: Слънчев панел (Photo credit: Wikipedia)

As the cost of professional fees is quickly rising nowadays, people are becoming more reliant on their own skills and effort in building things. There are now a lot of DIY or do it yourself solar panel kits available at your local hardware store or on the internet. You can order and have the materials delivered right to your doorstep in just a few days. You can even finish the entire project in just a matter of hours. Here are some things to learn first.

Seeking Resources

You need to look for the right resources first. You can actually build your own solar cell panel for only $100 or less by finding the best and most affordable sources. You can start looking for green companies. These companies offer some of the best prices and high quality materials to encourage people to choose environmentally friendly options in acquiring energy. You can also look for private sellers and online companies on the internet. Make sure you read the company background and objectives so that you can fully understand the processes and types.

The prices of resources will differ, depending on your setup, the materials you want and the brand. You should get to know your source more. Determine the method of payment, the method of shipment and when you expect the goods to arrive. Usually, it should take no more than 7 to 10 days for your stocks to arrive. Other states may only expect 3 days to get their package.

Starting Out

First, cut a couple of rectangular copper sheets. Each should be about the size of a stove burner. Wash a piece of the copper throughout, then use the sandpaper to take off any presence of corrosion. Lay the copper sheet on the burner. Turn the burner on to maximum heat. Watch the copper very well. You will observe that the colors change as the copper starts to oxidize, and gently transform to black. Let the copper stay on the burner for about 40 minutes or up to the time that a thick coat of oxidized black material turns up.

Turn the heat off on the burner, then let the copper cool in the air. This process should take only around 20 to 30 minutes. Slowly scrub the copper using your hands under running water to eliminate majority of the easily removed parts of the oxidized coating. Do not attempt to take off all the coating or scrub vigorously. The objective is to remove the regions that can easily be taken off. Do not damage the copper that stays below the oxidized layer. This is needed to build the solar panel.

More Steps

Cut the top part of the plastic bottle off, forming a makeshift bucket. Take the second copper piece, then bend it to fit the bottle shape. Slide the second copper piece into place along the inner side of the bottle. Do the same with the heated piece of copper. The two pieces should not touch each other. Link an alligator-clip lead to every copper.

Connect the lead from the second copper piece to the positive terminal of the micro-ammeter. Stir salt until fully dissolved using hot water. Pour the salt water into the bottle. Check the micro-ammeter. This will be your battery. Position the apparatus under the sun and see how the charge rises as the solar cell panel changes the energy of the sun into electricity.

Building Your Own Solar Cell

Řezy solárního panelu. (Photo credit: Wikipedia)

Solar panels are already considered very cost effective because these provide renewable source of energy. You can actually save more by making your own solar panels, instead of having to buy from a store or hiring a pro to do the installation. You can get a lot of financial benefits by maintaining the material properly. Expect solar panels to last for up to 3 decades if well-maintained. Here are some tips on how to begin your project.

Starting Out

Begin with the sandpaper and use it to scour the different regions of the copper of one of the available sheets. There should be no corrosion whatsoever on the copper for the process. Wash the copper sheeting using water, soap and either a sponge or a towel. You should allow oil from your hands to get on the copper. Tower the copper until dry. Make sure that you do not touch it directly. Use tongs to position the copper on the hot plate. Switch the hotplate on as warm and hot as possible.

Cook the copper using red hot heats for about 30 minutes. Use a thick black layer of oxides and allow to form at the surface of the copper. Be sure that you do not leave the copper unattended while you are cooking. The oxide layer and the copper below it will cool at various speeds, leading the two to separate. The process can be violent and can lead to accidents if not properly done. Be sure that you do not get too close or leave flammable items near. It will take around 20 minutes to cool everything to room temperature.

More on the Process

Wash the copper in plain water carefully. This will ensure that you get majority of the black pieces off. The red layer of cuprous oxide should remain on the metal. This will form right under the layer of cupric oxide. Get the cooked copper sheet plus the uncooked sheet then fit these into the plastic bottle. Bend each sheet outward so that no part of the two sheets will stay in contact with each other.

It is important that you clip one of the available alligator leads to the top of each sheet to connect these to the meter. The positive terminal of the meter must link to the uncooked sheet. The negative terminal must link to the cooked sheet. Dissolve two tablespoons of salt into a few cups of water. Pour right into the plastic bottle, allowing the water level to rise about 1 inch from the top of the sheet. Put the bottle out in the sun and observe the meter. The meter should rise consistently to about 50 micro-amps. Place the bottle in the shade and allow the meter to go down below ten. Finally, you have created your own solar cell.

More on Building

You can expect to finish the entire process in just 3 to 4 hours. It is important that you check out the different available resources first at your local hardware store and online so that you can get the most out of your budget. You should also consult a pro and other people who have tried building their own solar cell panels so that you can maximize the effect and get the energy you need to power your various devices.

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Evolution Of Solar Energy

Crescent Dunes Solar Energy Project (Photo credit: matt.hintsa)

When people talk about solar energy, a lot of people think of certain solar energy sources that are pretty common to them, such as wood, and even dried animal droppings. Aside from these possible sources of solar energy, people also associate the concept of solar energy as one of the possible causes for global warming.

However, there are still a lot of things that people do not know or fully understand about solar energy just yet, like what it is exactly, and how to use it to its utmost potential. In order for you to fully understand more about solar and sustainable energy, and what the future holds for it, you need to learn more about the history of solar energy. This article will give you a chance to delve in deeper into solar energy’s fascinating history.

Historical Role Of Solar Energy

One of the more common and more popular roles that the sun, or solar energy, played during those ancient times is that of a force that is able to sustain life based on its ability to give off renewable energy. This is probably the main reason as to why the people during those times, especially in native South and North America, as well as in other parts of the world, worshipped the Sun.

Ancient Greece built temples devoted to worshipping their sun deities, namely, Helio and Apollo. Also, the Greek’s use of solar energy were not limited to religious purposes, as they even used the solar energy system to incorporate passive solar design in the construction of their houses.

The Romans simply improved the Greek’s design and also incorporated windows into their structures, allowing them to be able to trap more solar heat. This actually played a role in their ability to produce a good growing condition for plants.

Solar Hot Water Heater Prototype

Unknown to a lot of people, but the original prototype for solar hot water heaters is actually a result of do-it-yourself projects of people in their hopes to be able to boil water, and keeping the water hot for a longer period of time. Scientists during the 18th century were able to discover that covering a box with a glass top while heating it would actually get the water to reach boiling temperature. But it wasn’t until someone tried to separate the solar heat collector with the water tank that the first prototype for solar hot water heaters was created.

Discovery Of Solar Energy Cells

Solar energy cells, also known as PV cells, are actually created when three Americans discovered that building transistors with silicon. This was during the 1950’s. PV cells weren’t actually an affordable solar energy source back then, however, due to its practical use in the satellite industry, the solar energy cell industry became sustainable. PV cells serve as the main fuel source for satellites out in space.

Solar Energy Today

Nowadays, in our more technologically advanced times, solar energy has now garnered a lot of renewed interest and focus, especially since solar energy has now become more affordable, and offers more use and application in our modern day needs. Solar energy cells are actually being used in a lot of businesses and homes today, and are even responsible for powering most household appliances, office equipments, and are even used to power cars.

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