Advantages And Disadvantages of Solar Lamps

Solar power is considered to be the most efficient and renewable source of energy used by mankind today. With the development of various technologies, different uses of this renewable source of energy are being discovered. The solar lamp is one among the most effective uses of the energy from the sun. It is also one of the largest growing industries in the world.

The constant rise in the demand for these lamps and lights can be attributed to two factors which include-

* The need to save costs

* Control environment pollution

There are many advantages and disadvantages associated with these lighting options. Some of the most important advantages include the following.

Zero Energy Costs: One of the greatest advantages of a solar lamp is its zero energy costs. As these lamps and lights derive its energy from the sun, it can function free of costs. It is therefore widely used in parking lots and other places where lighting is essential all the time. It helps to save energy and costs.

Low Maintenance: These lighting systems are known to last for an entire life time as it seldom requires any type of maintenance or repairs. These systems derive its power from the sun and therefore recharge automatically every day. However, the panels of these systems need to be dusted once in a week to avoid accumulation of dusts.

Environment Friendly: It is also known to be environment friendly as it does not include the use of poisonous chemicals or gases to produce energy. As these lights draw its energy from the sun, it is considered to be eco-friendly and safe for humans.

No Wire: Another advantage of the solar lamp is that the lights include no wires. Each individual light includes a rechargeable battery package and a photovoltaic panel. It can therefore be easily installed and seldom requires the need of a professional for installation.

Packaged Sets: These lighting systems are available in prepackaged sets. Walkway light sets include rechargeable batteries, LED light bulbs, PV panel and housing. The packaged sets are quite easy to install and seldom require professional assistance.

Quick Installation: Solar lamp lights are easy to install as it includes no wires or electric circuits. It includes only minor assembly and therefore it can be installed easily.

Although these lighting systems include a number of beneficial qualities, it is not devoid of drawbacks. The most common drawbacks or disadvantages include the following.

Initial Costs: The initial costs of buying these lighting systems are quite high, though it requires less maintenance and repairs. It is a huge investment to transform the lighting systems.

Exposure To The Sun: The batteries of these lighting systems depend on the energy from the sun but sometimes climatic variations such as an overcasts sky or storm can prevent the batteries from recharging. Therefore these lighting systems are ideal for areas where there is ample amount of sunlight.

Non Critical Option: As it includes these drawbacks, solar lamps can be used mainly for decorative purposes rather than critical uses.

Source by Anamika Swami

Are Solar Powered Cars a Realistic Option?

Solar powered cars may be the wave of the future. Or not.

True solar powered cars are actually electric vehicles powered by solar panels. The panels produce electricity by converting the sun’s rays into energy stored in batteries. These batteries then power the vehicle.

The problem is that makers of solar-powered cars haven’t figured out how to solve some very big problems…problems that keep true solar cars from being commercially viable.

In order to harness the energy of the sun effectively, solar-powered cars have had to be extremely lightweight plus they have to be designed so as to be as close to aerodynamically perfect as possible…and neither of these limitations makes for a good road vehicle. After all, don’t you want a car that can carry at least 5 people and go 70 mph on the highway? And how about air conditioning?

If that’s what you want from a vehicle, you don’t want a solar-powered car…not yet. In the first place true solar-powered cars can currently carry no more than 2 people. Now, that might be great if what you want is a sports car. But, if you want a sports car, you probably want it to go more than a top speed of 60 miles per hour.

Granted, ongoing work on solar cells will allow them to become much, much smaller and the cars they are used on to become more “user-friendly”.

But, in the meantime, just because true solar powered cars might still be the stuff of dreams, solar powered hybrid vehicles could actually turn out to be pretty practical.

Indeed, systems that use solar energy to charge a hybrid vehicle’s battery pack (along with a supplemental solar battery system) actually allow for hybrid cars to operate for extended periods in the electric (rather than gas) mode before needing to be charged. The use of such a solar power charging system could increase fuel economy by at least 25%.

By reducing dependence on recharging the hybrid’s battery by running it on solar power, rather than gasoline power, the use of solar energy makes hybrid vehicles even more “green” than they already are.

Take Care,

Steve Longoria

Source by Steven H. Longoria

Universal Solar Chargers Advantages and Disadvantages

In these days of ever increasing reliance on technology and gadgets many people have taken the choice to purchase a universal solar charger. With more people purchasing web connected devices, the need for keeping these devices powered is more important than ever.

Solar power works by converting the energy provided by the sun into electricity. Solar panels are made from photo-voltaic cells, these cells were first made by Bell laboratories in the early 1950’s. Briefly, photo-voltaic cells work by using the power of light itself. Light is mainly consisted of photons which create an electric imbalance within the photo-voltaic cells upon striking the surface. This electric imbalance then causing an electric current to flow within a circuit created in the device. This current flow can then be used to either power a device directly or, more commonly in the case of a solar charger, be used to charge a battery which can then be used to provide power to another device.

A good universal solar charger will be able to attach to a variety of devices. They connect either via the use of different tips for the devices or they can alternatively physically attach to the batteries which the device may contain. A good quality charger will also be able to fully charge the device using its internal battery.

Its pretty easy to come to the main advantage of a solar charger, mainly that it does not require external power to charge a device. This is extremely handy if you are going to be spending some time away from mains power. Examples include when camping or exploring the great outdoors or when spending time in a music festival which just about has toilets let alone electric!

Solar power is also extremely environmentally friendly. Most domestic power is either generated via coal/gas powered power plants or through nuclear power. Both of these types of power generation produce harmfull byproducts which can harm the environment. Coal/gas burning power stations produce large quantities of greenhouse gases while the risk from radiation produced by nuclear power can never be totally dismissed.

In contrast, solar power is a form of renewable power. Along with wind and tidal power generation it is a clean form of power which creates no greenhouse gases and no radiation risks.

The next big advantage is cost. Once you purchase a solar charger there is no more cost involved in charging your device, unlike mains power which seems to increase in cost every six months!

The biggest disadvantage of solar chargers is that they need light to work. The efficiency of the photo-voltaic panels has increased greatly over the last decade or so, reaching the point where they do not need direct sunlight to work but will now create a satisfactory current even under overcast conditions. But it is still something you should be aware of depending where in the world you are based.

Charging your device via a solar charger can also be a lot slower than using a mains charger. This is due to the current generated by the solar panels being a lot less than what you would find at home. Universal solar chargers try to overcome this by utilising a lithium-ion battery within it. These types of battery are very good at releasing a higher charge than conventional ni-cad batteries, thus they create a higher current in their charging circuit.

This sums up the main pro’s and con’s of a universal solar charger.

Source by Michael P Wellington

The Advantages and Disadvantages of Green Power Energy Resources

There are hardly any people that have not thought about or desired they could change to green power for their houses. It makes logic to stop and reflect on the advantages and disadvantages of green power, and other energy resources as you investigate the disadvantages and advantages.

Firstly, think about the surroundings. Changing and moving to green solar energy resources from a conservative green power supply is a distinct advantage when you consider the atmosphere. First the ecological advantages are based on the consequences on the world. Human beings are presently using an enormous amount of the world’s natural energy resources such as gas and coal as we work, live, and run our life. We rely heavily on the non-renewable fossil energies that the earth has taken a lot of years to come up. Human beings will not be able to refill these natural energy resources. This fact only has to be seen as an enormous pro in moving towards using solar energy and green power.

Solar energy gets its foundation from the sun. For the reason that the sun will go on to radiate its power for billions or millions of years, the emission is well thought-out to be a renewable reserve. The sun is an authoritative star in our entire solar-system and the probable life period of the sun is indistinct in human-being terms. Fuel funds like petroleum and coal have a fairly accurate exhaustion date of 70 years.

There is a disadvantage when taking into consideration solar systems for your house. The disadvantage is the preliminary cost of purchasing and fixing the solar energy system. Now that we have got the disadvantage out of the sight let’s us get back to the advantages. The savings that one might make utilizing solar power are extraordinary. You might pay for the preliminary instillation within years possibly with the dollars you will bank. Which depends on how much energy your house utilizes, there may be no energy bill to make payment for, or a very petite sum to give to your power company. Additionally, if you produce more energy than you utilize, the power corporation will pay you for the power you provide back to them.

When weighing the advantages and disadvantage of solar energy it is significant to reveal a few more of the down-sides of this basis of power. There requires to be a big enough region for the panels from the solar to be set up so that there can be enough power produced. If your house has a top, you are equipped; however a public housing resident would not be able to set up enough solar panels to generate a solar power system if they were permitted to use the complete roof. Bad weather and pollution will influence the level of power produced. There will be no power generated at nighttime, so some type of back-up energy unit will be required.

Source by Lizaa Ray

Solar Powered Battery Chargers and How They Work Today

As the name suggests, solar powered chargers depend on solar energy to both charge and to supply electricity to devices. These are used for charging lead acid or Ni-Cd batteries to a maximum of 48V and 400 Ah capacity and are generally portable. Its portability makes it a favorite choice amongst people for use as a battery charger as it can be easily carried to charge your car wherever it may be.

There is a variety of solar powered battery chargers in the market today, used for charging various electrical items like:

  1. The portable designs which are popularly used for charging different types of mobile phones, iPods and other portable audio equipment. These chargers are connected to your cell phone using the help of a USB cable.
  2. Solar battery chargers used for cars come in a fold out model which you just have to place on your automobile dashboard, and plug it into the cigar lighter. This way, the charger will keep topping up the car battery, even when the car is not in use.
  3. Solar battery chargers are also found in torches that work with an additional charging mechanism like a kinetic charging system.

How solar battery chargers work

Solar powered battery chargers usually work with the help of intelligent charge controllers. Here, a series of solar cell array plates are separately installed on a roof top, and are collectively connected to a battery bank.

These chargers are not only used for recharging purposes, but can also be connected to the mains supply chargers to help save on energy costs during the day. Now you understand the set up of a solar battery charger, you will definitely wonder how these solar chargers actually work at generating electricity from sunlight.

Basically, free electrons that carry negative charges create movement in an electrical current. These free electrons are entangled in an orbit surrounding the atom nucleus made of protons and neutrons. This is the fundamental aspect that occurs in the atoms of everything in the universe.

Silicon is the material used in solar cells. In solar panels, these electrons are knocked loose from its orbit by the energy found in photons from sunlight This photon’s ability in disentangling electrons from its orbit is called photoelectric effect.

Positive and negative side

By adding impurities like Boron and Phosphorus, an imbalance is created between the positively and negatively charged particles in silicon, which in turn helps creates an electrical field. The electrons are pushed towards the front of the solar cell to create a negatively charged side while the protons are left behind on the other side of the cell to create a positive charge.

These two sides are then connected to an external load like the terminals of a solar battery charger to create electricity. As a single solar cell can only produce about one or two watts of energy, multiple cells are combined in a solar charger to produce sufficient energy to charge a battery.

Source by Guy Starbuck

Why Biomass Energy Is Better Than Other Types of Renewable Energy

There are many different forms of “green” or renewable energy available today and people are continually looking for more energy-efficient sources of green power as the concern about global warming and greenhouse gases comes to the forefront. For those looking to escape dependence on foreign oil and for those interested in reducing their impact on the planet, one type of energy stands out among the rest: biomass energy.

Biomass energy is energy derived from organic materials, usually waste materials.

Biomass energy is, of course, not the only type of green or renewable energy that exists on the market. Other popular options include solar power and wind power. However, while these other options get a lot of attention in the media, biomass is considerably better than these choices for several different reasons:

* Biomass helps keep waste out of landfills. While solar energy makes use of the power of the sun and wind energy harnesses the wind, biomass energy uses organic waste products to create energy. Approximately 70 percent of the waste products disposed of in landfills in the United States contain biomass and many companies produce a significant amount of biomass that adds to this number every day. Biomass keeps the waste out of landfills and harnesses it into something useful.

* Biomass energy has a very long track record of success. Biomass energy has been used in some form or another since the days of the caveman burning wood for fire. Biomass is not a new technology or a passing fancy but is instead a long-established source of energy.

* Biomass energy is a very reliable source of energy. You are not dependent upon the sun to shine or on the wind to blow in order to use biomass. This means it can be used in more places and by more people in a very reliable manner and produce the power necessary for many different applications. Many people are reluctant to switch to solar or wind power because of problems with consistent energy being available but this worry is eliminated when you make use of biomass. In fact, some companies produce enough biomass waste to provide all that they need for their energy production without depending on a third-party supplier, increasing reliability even further since there is always a ready source of biomass.

* Biomass energy doesn’t require an entirely new system or process to work. With co-firing, you can use your existing boilers and use biomass along with coal in order to reduce the amount of coal used by up to 20 percent. This is much easier in many cases than trying to entirely switch your power plant to solar or wind power.

* Biomass energy is the only form of liquid renewable energy that is available. This factor, along with the fact that it doesn’t depend on sun or wind, also helps to make it suitable for applications and uses where wind and solar power would not necessarily work.

All of these are significant advantages of biomass energy and they all help to explain why biomass is preferable to other sources of green or renewable energy. If you want to stay ahead of the curve; be prepared for new potential government regulations that limit energy use; and do your part to reduce waste and greenhouse gases, it is time to consider biomass for your industrial or commercial application.

Source by Pierce David

Solar Cell Phone Charger – Discover The Interesting Facts on Having One

Charger is basically the unit utilized to charge up your electronic appliances. Mobile phone can also be referred to as electronic device and if you need to start your cell phone, then you must need to charge it up for usage. There are several ways of charging your cell phone, you may plug it in your computer while you’re at your office during work, or place it in your dashboard even while you’re driving in your car.

No matter how anyone charges it, the following solar battery charger will probably be ready when you need in order to charge your phone, camera, MP3 player, and other gadgets. Charging some mobile phones for about 10 minutes allows you to call someone or about 3 minutes. Whenever you are out of your office or your home, you can make solar power through a sunny window.

Solar cell phone charger one of the hottest items of world’s only pocket-sized photovoltaic lighter which is also the lightest and most compact solar charger in the world. Only weighing about 9 ounces, this foldable charger fits mostly in any bags, be it from laptop bags or backpacks. Not to mention that it is powerful enough to charge any of your personal electronic gadgets or equipments.

Solar cell phone chargers have this advantage since they are connected to the solar cell panels; it provides a battery backup for storing solar power. A Turbo recharge facility that is available in such chargers makes certain that the phone is not impaired or overcharged unlike the conventional electrical solar battery chargers.

Solar cell phone chargers function by changing the sun’s energy into electricity can be used to charge your current cell phone. The solar cells on the mobile phone charger connect to an inside battery which will carry a full charged cell phone (sometimes it rather depends on the product you have).

Solar cell phone chargers have become more popular since a lot of people start seeing the value relying on renewable energy. Not only does it help you save a lot of money on your power bill, but it is also an excellent power back-up once you encounter power outage and you can still be able to use your cell phone or any electrical gadgets without worrying about the power loss.

Solar cell phone battery chargers are powered via direct sunlight; there is no need to use electrical energy. During an emergency, such as earthquake, blizzard, and hurricane are mostly the causes of power outage, leaving behind the residents not having ways to contact their family members, relatives or friends.

Powering even the smallest of appliance that has a clean energy source go a long way in cutting down your carbon presence. Using a solar power mobile phone charger is just one-step in this particular direction. This portable charger collects energy from the heat of the sun, or through an electrical socket which will then store that energy in an internal battery.

Solutions such as the solar battery chargers should be available for everyone as well as easy to buy, no matter where you are located. This is a very commendable strive.

Source by Sallie Obin

What Happens When You Change Your Roof? – A Feng Shui Perspective

Houses can and do outlive people. And periodically, a house will need a new roof. Professional roofers suggest a new roof every 20-30 years. In classical Feng Shui, we know that the interior energy of a house is captured when it was built and specifically when the roof has been installed to close out the direct energy of the Sun into the house. During the building process, the roof may go on before the ceiling or ceilings in the case of a multi-storied home.

So, a common question amongst Feng Shui clients and students is whether or not the removal of the roof will change the inherent and semi-permanent energies inside the house. The answer to this question is multi-faceted depending on a number of circumstances. But for the most part, if a roof is removed while leaving the ceiling intact, then the original energy of the house will not change or “escape.” These are the kinds of things considered also when a person adds on a second story and how they do it.

We call this energy the flying stars, or the flying star chart for the house, which is a combination of energies from “heaven” above and “earth” below. It is a merging of time and space components which ends up having a profound and continuous effect on the people who dwell in the house or building.

A ceiling will act as a second roof, so unless a major portion of the roof and ceiling are removed together at the same time, you will not see a major change in the interior energies of a house. The same holds true for an ordinary small skylight, even though both the roof and ceiling have been cut open. If it is a small opening, and not of atrium size, then this would be a non-issue.

As well, now that people are adding solar panels to their roofs, people wonder if there will be any Feng Shui influence one way or the other and I do not think there is. In fact, when it comes to adding solar panels to a roof, it would be considered less of a “construction sha” situation than actually removing a roof, which is more of a disturbance to the area.

There are still some well known practitioners who say that you can change the flying star chart of a house by removing a couple of roof tiles. I would disagree. There was also one very famous author who said that if your roof tiles are blue in color that you will meet with some serious misfortune. To be blunt, I think this is not true at all. But everyone should know that the real goal in receiving Feng Shui advice is to empower a person with a larger skill set for controlling one’s own destiny, and not to scare the pants off of people. Very rarely will one real or perceived Feng Shui flaw cause a serious mishap or disaster in a person’s life. There would usually need to be an accumulation of many things off balance and for some time before the momentum could build into manifesting any event of significance.

Source by Kartar Diamond

Pros and Cons of Portable Solar Power Generator

A portable solar power generator is useful in outdoors. Some people might be used to not having electric power while going out on camping. However, let us admit that it could get pretty frustrating and inconvenient. We would like to be able to enjoy the outdoors by having all our things properly functioning.

There are lots of advantages in having a portable solar power generator. You are able to use power emergency systems, power equipment, and charge your mobile phone, laptop and camera. Or, how about running heating systems, water purification systems, small televisions and radios while you are out camping? This is certainly something you could use for both optimum relaxation and emergencies outdoors.

Even when you are not outdoors, a portable generator could still come in useful. They’re still able to help your home and family during power interruptions when you need your heating systems and refrigerator to continue operating. They could even be utilized during major disasters like floods, storms and fires that cause power interruption.

So what does portable solar generators consists of? These power generators consist of a charger, lightweight and generator frame. A solar battery charger is not expensive and could be transported anywhere. The power generator itself is light, as you’ll notice in solar backpacks and roll up solar panels.

Now let us talk about the prices of portable solar power generators. You could actually make your own for a few hundred bucks. There are some sites that give free info on how to perform this. However this could be bulky, especially if you are not experienced. It might be a better idea to purchase a new one on the Internet at a cheap price.

There are things you should remember when purchasing a portable solar power generator. The major things you must consider are power features, cost and portability. These power generators are accessible in a wide price range and could cost you from $400 to more than $1000. There are lots of info about the pricing and features of solar generators on the Internet. So take time to look at customer reviews, scan over pictures and compare prices to know how much value you are getting for your money.

Even if a portable solar generator is safe to use, always go after the manual. Generally, power generators pose a risk for accidents. Like all appliances and equipments, you should handle them the properly for more safety.

Source by Jack Kolbow

Solar Aeration Is the Answer To Increased Profit In Shrimp Farming

Solar aeration is the answer to modern shrimp farming. Modern shrimp farming really started in the “Reagan era.” Marine shrimp are farmed in dugouts, impoundments, ponds, raceways and tanks. Today over fifty countries have shrimp farms. With the increasing cost of electricity and the greenhouse gases it causes, all shrimp farms need solar aeration to replace the electrically operated aeration systems. Shrimp are no different than any other living creature; they need oxygen, clean water, and sunlight. They grow faster in warmer climates where you can sometimes produce three crops a year if you are near enough to the equator.

The leaders in shrimp farming in the Eastern Hemisphere are Thailand, Vietnam, Indonesia, India and China. Malaysia, Taiwan, Bangladesh, Sri Lanka, The Philippines, Australia and Myanmar also have large shrimp farming industries. Mexico, Belize, Ecuador and Brazil are the leading producers in the Western Hemisphere. There are shrimp farms in Honduras, Panama, Colombia, Guatemala, Venezuela, Nicaragua and Peru. The United States, Western Europe and Japan are the major shrimp importing nations. They have high-tech shrimp farming but their production is insignificant. Saudi Arabia and Iran produce the most farmed shrimp in the Middle East.

Shrimp farms use a one or two-phase production cycle. With the one-phase production cycle the shrimp spend a short period in acclimation tanks, then they are put directly into the growout ponds. Farms that use the two-phase production cycle stock juvenile shrimp from hatcheries in nursery ponds and several weeks latter transfer them to growout ponds. The shrimp need aeration in all phases of growth and solar aeration is best answer. Hatcheries sell two products: Nauplii, which are tiny, newly hatched, first stage larvae, and postlarvae that have already develop through the three larval stages. Good aeration produces clean water and healthy nauplii, postlarvae and shrimp. Solar aeration is the best investment for any shrimp farm and is available now.

Shrimp normally spawn at night and females may produce 50,000 to 1,000,000 eggs, which hatch in one day. The first larval stage is nauplii, which look like tiny aquatic spiders. The nauplii feed on their egg-yoke reserves for a couple of days. The nauplii then metamorphose into zoeae, which have feathery appendages. Zoeae feed on algae and formulated feeds for three to five days and then metamorphose into myses. Myses are just starting to look like shrimp and they feed on algae, formulated feeds and zooplankton. Myses metamorphose into postlarvae, which look like adult shrimp. Postlarvae feed on zooplankton, detritus and commercial feeds. From the day the eggs hatch till the postlarvae are ready to be moved to the farm takes about 25 days. To keep the product healthy, all larvae stages need adequate aeration, and solar aeration is the right answer to preserve our water quality and keep our earth green.

There are all sizes of hatcheries from home operations to medium and large-scale operations. All hatcheries need clean water and sunlight. It is impossible to maintain a healthy shrimp life cycle without aeration, which is, I repeat, best produced by solar power.

Shrimp farmers next move the animals from nursery ponds within 30 days to growout ponds. This move increases the survival rates of their juvenile shrimp and increases their profits. The greatest danger throughout the production cycle is virus problems, which can be avoided with sanitary conditions of clean water with adequate aeration. Shrimp farming, like any business, is about producing the highest quality product for the lowest cost possible, so that at the close of the business cycle there is a superior profit. Reducing electrical usage with solar aeration adds to a higher profit margin.

Source by Dick Pennington