Solar Power 101

Solar Power Plant (Photo credit: Wikipedia)

More and more homes, offices and devices are now relying on solar power as people are becoming more aware of the potential dangers of other unnatural sources of power. It is important that you know more about the idea to determine if it is the best option for you. Solar power can render several benefits for the long term. You can take advantage of the features by choosing the right type and maximizing the effect right in your own home.

About Solar

Solar power is described as the creation of electricity straight from the sun. The generation can be direct with the use of PV or photovoltaics or indirect via CSP or concentrating solar power. CSP is done by using the energy of the sun to focus and boil water which will eventually create solar power. Solar power has the capacity to give more than 1000 times the total world energy consumption back in 2008. However, solar power only comprised 0.02% of the total in 2008.

If solar power will be used double every 2 to 3 years, it can become the dominate source of energy for the century. The biggest solar power plants, are concentrating solar thermal plants, although new multi-megawatt photovoltaic plants have also been created. More and more countries are investing in the bigger photovoltaic power stations, like Germany and Portugal.

More Solar Power

Terrestrial solar power is a predictable and intermittent source of energy, which means even though solar power is not readily available all the time, people can still predict it using a certain degree of accuracy when the energy source will or will not be available. A number of technologies, like the solar thermal concentrators, include an element of thermal storage, such as molten salts.

These come in the form of heat and are considered as store spare solar energy that can readily be made available overnight or at times when solar power is not available to create electricity. Orbital solar power collection also avoids the intermittent use, although satellite launching and beaming of the gathered power are required to get antennas on Earth. The enhanced intensity of the sunlight over the atmosphere also tends to boost the generation efficiency.

About Solar Energy

Solar energy, heat and radiant light that emanates from the sun have been controlled by humans beginning the ancient periods using a wide range of evolving technologies. Solar radiation, together with secondary solar-powered resources like biomass, wind, wave and hydroelectricity are accountable for majority of the available renewable energy on Earth. Only a small fraction of the available solar energy is utilized.

Solar powered electrical generation depends on photovoltaics and heat engines. The uses of solar energy are only limited by human ingenuity. Some of the other uses of solar energy include space cooling and heating via solar architecture, solar hot water, solar cooking, potable water via distillation and disinfection, daylighting and high temperature process heat for industrial functions. Solar panels are one of the most effective and basic ways to gather solar energy.

What Options do you have in Solar Electric Systems

Bangui Bay Windmills (Photo credit: Storm Crypt)

Electric systems have been created because of the rise of solar power as a reliable and cheap source of energy. There are now different techniques, methods and systems that depend on solar power to run plants, houses and offices effectively. You should learn more about these systems to determine the best types that will provide you with the most benefits. You can choose to make your own or just purchase one from top manufacturers.

The Stand Alone System

There are small stand-alone electric systems that are very good at giving economical electricity. These systems are mainly used to power RV, lighting, backup power systems, portable power systems and cabins. The size of the array of photovoltaics or the number of solar panels, as well as the battery will rely on the individual power requirements.

The solar panels charge the battery during daylight periods and the battery will provide power to the inverter whenever required. The inverter transforms the 12 volt batteries DC power into 120 volt AC power. This is the most useful kind of current for majority of applications. The charge controller will terminate the charging once the battery reaches the full charge. The batteries will not gas out this way and battery longevity is enhanced.

Grid-Tie Solar System

The grid-tie solar system is very useful for homes that are already linked to the utility grid. The primary advantage of this kind of system is the cheap price of utility. The system needs to be wired with an inverter that creates pure-sine-wave AC electricity, which is needed for linking to the utility grid. Another benefit of this electric system type is the tax incentives. There are also rebates provided depending on the local agency and the state.

If you own a grid-tied system in California, you can make use of some programs that will minimize the total cost of the system. Majority of the system usually do not include the battery storage that lets power in once the utility does not work. Grid-tie systems are installed using battery backup power to maintain critical loads even in the presence of a power failure.

The Full Stand-Alone

The complete or full stand-alone system is very useful for complete independence from electric utility companies and fossil fuels. The benefit of the system is the capacity to provide power away from the utility, as well as creating a measure of self independence. The complete stand-alone home solar system will usually have a couple of inverters to supply the AC house current needed to power very big loads like air conditioners.

An available second inverter will help make sure that power is present if one of the inverters will need servicing. Self-contained systems like these require an adequate battery keeping capacity to give electricity when solar power is not available because of prolonged adverse weather conditions. The complete stand-alone system usually needs 20 solar panels for safe battery keeping and adequate charging. You may ask an expert to help you decide between systems to that you get the most out of your investment.

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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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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.

What is the Best Solar Energy System

Free Energy (Photo credit: AlicePopkorn)

With the recent advances in technology in recent years, being able to produce viable and clean energy to be used to power your home is now a reality. Alternative sources of power and energy will not only help you avoid burning fossil fuel to help provide electricity for your home, but will also help you save a considerable amount of money on the cost of your utility. One of those alternative energy sources is solar energy.

There are actually a number of different solar energy systems that are available in the market today. Since solar energy has become more common and more viable in the recent years, developers have begun to develop different solar energy systems that you can choose from, depending on your needs and limitations. Choosing a solar energy system that would fit best for your home is not necessarily an easy thing to do, which is why it is important that you learn how to choose the best one in order to get the right type of solar energy system for your home. Here are a couple of hints.

Know Your Solar Energy System

Before anything else, the very first thing that you must do is you must make sure that you know what different solar energy systems there are that you can choose from. Basically, there are two different types of solar energy systems, and those are the photovoltaic (PV) panels and solar thermal systems.

Photovoltaic Panels
Photovoltaic panels are solar energy panels that convert solar energy and turn them into electricity that you can use to power up most of your appliances and household lighting, and should only be used for those particular uses. Unfortunatley, among the solar energy systems that are in the market, photovoltaic panels are considered to be one of the more expensive ones, if not the most expensive in the solar energy market today.

Solar Thermal Systems

Solar thermal systems, on the other hand, simply generate heat, and are well-suited for boilers, furnaces and water heaters, as this type of system allows you to make heat using direct solar energy at a much lower cost as compared to using conventional energy and electricity. However, if you want to retrofit your home with one of these solar thermal systems, you need to sacrifice a little bit of space in your home. The good thing about using this type of solar energy system though is that you will save up to 80% of your total energy cost per year.

Calculate Your Energy Cost

Once you have a much better understanding and grasp of what solar energy systems are out there, and how they work, you simply need to learn how to calculate the cost of your energy consumption. This will actually help you determine which type of solar energy system you should choose from the two. When calculating the cost of your energy consumption, you need to create a list of all the things that might need energy and electricity. Include appliances, lighting, water heating, space heating, space cooling and air conditioning. If you can, try and figure out first if there are ways that you can reduce your electricity and energy consumption without having to resort to retrofitting your home with solar energy system.

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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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Get to Know Solar Systems

Solar panels for water heating on top of a hotel in Perissa, Santorini, Greece. (Photo credit: Wikipedia)

Solar heating systems incorporate several principles on the conversion of solar energy into solar thermal energy, as well as the physical behavior of heat. The primary principle that people need to know more about include solar home heating, which involves getting solar energy and transforming it into heat. You will better appreciate solar heating systems and solar energy as a whole by knowing how the process works. Here is some more info.

About the Collectors

A solar energy collector gets the radiant energy from the sun to be converted into heat. A solar collector transforms solar energy into heat by taking advantage of the greenhouse effect. The solar energy will go through a layer of glazed glass, and then be absorbed by the material underneath. The solar energy will excite the molecules in the material beneath, leading to heat. The glass glazing will keep the heat from escaping, and will capture the heat effectively. As soon as the heat is captured, people can put the energy into good use.

Basic Heat Principles

Heat is described as a form of energy that is related to the movement of molecules. Once the electromagnetic waves that emanate from the sun hit an object, these will excite the molecules of the object, triggering movement. The movement of the molecules is then referred to as heat. Heat is constantly moving from high to low temperatures until the temperature becomes even. The process is known as heat transfer.

If a person puts two objects next to each other, the warmer object will start to cool down as the heat is moved to the cooler object. The cooler object will warm up afterwards. The transfer of heat is triggered by the difference in the temperature of the objects. The rate of heat transfer is proportional to the difference in temperature. The bigger the difference in temperature between the items, the heat movement will be faster.

Heat Movement Assessment

It is important that people know more about the movement of heat to full appreciate solar thermal energy. Passive solar energy applications use a lot of heat movement. The 3 common physical ways that heat moves include convection, conduction and radiation. Conduction is the transfer of heat via a solid material, or from a single material to another where the surfaces are in contact with each other. Heat is conducted quickly via a solid material compared to layers. Convection is the heat transfer by a moving fluid such as water or air. Radiation is the direct transfer of heat through space via electromagnetic waves coming from a warmer object to a cooler object.

Choosing the Application

Knowing the various types of heat transfer will help you choose the ideal application that will ultimately become beneficial for your home or office. Make sure that you also get all the materials needed for your solar heating system. You can stay comfortable even on long cold months by choosing the right type and knowing the devices and positioning that will guarantee you safe and effective results.

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