A “solar cell” is a device which changes sunlight into electricity. More technically, a solar cell is also referred to as a “photovoltaic cell.”

The term “photo” derives from the Greek word for “light,” and the term “voltaic” comes from the word “volt” which means “electrical force.” A “cell” is a small receptacle or container containing electrodes which generate power.

Thus, a photovoltaic cell is a container that creates electric force, through light.

Whereas a solar cell can generate electricity from any light source, its intended use is the collection of solar energy from the sun.

How a Solar Cell Works

The solar cell works as follows:

Photons (which are particles of light in sun rays) hit the surface of the solar cell and are absorbed a semiconductor, such as silicon.

These photons (bits of sunlight) knock electrons loose from the atoms inside the semiconductor. The photons then push the electrons along, leaving a “gap” in the atom. Another electron is then pulled from an adjacent atom to fill the gap. And so an electrical flow is generated.

The simplicity of this is that one atom has an extra electron, and the other atom is missing one. This is referred to as a “difference in potential.” Nature, wanting to remain balanced, tries to even things out by pulling another electron from the neighboring atom.

A solar panel is made up of a group of solar cells linked together to produce the desired amount of electrical energy.

A group of solar cells linked together can also be referred to as a “module.” Thus the terms “solar panel,” and “solar module,” are synonymous to each other, and essentially mean the exact same thing. “Solar panel” is the more common term, and “solar module” is the technical term.

One can use Solar Panels individually or one can link several together in order to generate more electricity. When a group of solar panels are linked together, it is called a “solar array”. The more solar panels are included in a solar array, the more power they produce.

Solar Power is a clean energy source which is virtually unlimited. I say “virtually unlimited” because the sun itself won’t last forever. But we won’t have to worry about that for the next few billion years.

Since solar power is a clean energy source which has been around for decades, one might wonder why its not used more. The answer to this lies partially in the cost of producing solar panels, as well as in the efficiency of the solar panels.

We are currently in the second generation of solar panel technology and verging on the third. A lot has changed since the first generation. Solar panels a are becoming a viable source of clean energy.

The first solar cells were relatively large and bulky compared to our current models. In view of the amount of energy and material required to produce them, and the amount of energy they actually produced, it was more costly to use solar energy than to use fossil fuels. The only exception was in places where no fossil fuels were available, such as in space.

With the second-generation solar cells, we attempted to tackle this exact problem. We attempted improve manufacturing techniques so as to reduce the costs, materials and energy needed for the production of solar cells.

Recently, major advances have been made in the production of solar cells, which have reduced production costs.

One contribution in this area was the development of techniques to coat glass or ceramic materials with very thin layers of semi-conductive substances. This made it possible to produce solar panels using only a fraction of the semi-conductive material that was required earlier. The production of solar panels using this second-generation technology is referred to as “Thin Film Technology.” (For more information see Solar Ink.)

Third-generation solar energy technologies are currently being researched and developed. The objective is to improve the power of solar cells even further (while keeping production costs to a minimum) in which case thirty to sixty percent of the sunlight hitting the panels will be converted into electricity. (Current solar panels only convert about twenty percent.)

But regardless of third generation solar technology, the second-generation solar cell is efficient enough to make solar technology viable – and a host of new solar-powered products have hit the consumer market.

Solar-powered calculators have been around for a while now, we’ve all seen them. We have even seen a few other novelty devices. But only in the last few years have solar devices come into serious and practical use.

The last two years in particular have seen a virtual explosion of solar devices hitting the market. Solar flashlights (I’ve often wandered what use they were), solar-powered radios, and, recently, solar battery chargers.

One can also now find a wide range of portable solar chargers and panels, which are lightweight and easy to transport, yet capable of providing a decent amount of power in even the most remote locations. Solar chargers are becoming a standard part of emergency preparedness kits and wilderness survival kits.

All of this is a result of the developments in solar cell technology, and the coming of the Solar Age.

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Learn more about solar power at Facts about Solar Energy.

Hydrogen for cars – how to run your car on water.

As gas prices are rising to previously unimaginable levels, every available resource is being explored to replace fossil fuel by official energy commissions as well as by the general public. Hydrogen fuel seems to be a possible alternative. Hydrogen for cars will not only provide the chance to explore new energy sources; it will also open up better potential for us to improve how we travel overall.

The era of hydrogen fuel car?

Hydrogen gas keeps climbing the list as one of the top contenders for fossil fuel replacement. It exists naturally in everything from coal and water to the compost heap in your backyard.

Methods for producing hydrogen fuel for cars can vary, but they are all quite efficient and much cleaner than is fossil fuel production. A gasoline production refinery requires 300 billion gallons of water to produce that fuel, but if it produced the same amount of hydrogen, it would only need one million gallons of water.

A gallon of hydrogen for cars costs half the price of a gallon of gasoline and improves fuel economy by more than two thirds. Hydrogen fuel generates lower engine operating temperature and there is no emission of hazardous fumes by its use.

A big problem hindering the production of hydrogen-fueled vehicles is the lack of available hydrogen fuel. In the future, home hydrogen refueling stations may become a realistic possibility, but they are not currently affordable for most people.

An explosion of new vehicle designs will emerge when hydrogen fuel powered cars become the standard in the automobile industry. The electricity to power these vehicles would be generated within a much smaller engine from the hydrogen fuel, thereby eliminating many of the limitations imposed not only by the size of gasoline engines, but also those restrictions based on the heat produced by a gasoline engine. Limitations from designing around current driveline equipment would also be eliminated by the new hydrogen-fueled vehicles.

Clean, cost effective and environmentally safe, hydrogen is the fuel of our future. As hydrogen production increases and becomes more available, fueling stations will open and we will reap the savings and environmental benefits of using hydrogen for cars.

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Learn more about hydrogen fuel car.

Your car is very likely to be running on gasoline blended with ethanol, a corn-based fuel, which has been touted recently as the answer to the dilemma of ever-increasing oil prices and emissions of greenhouse gases. While ethanol has been considered as a viable fuel for cars, it has been used in this capacity for a long time without optimization, making it questionable as the right choice. Hydrogen gas in cars can offer improved fuel economy, and is a more recently available option in this field.

The use of hydrogen gas in cars however has seemingly countless benefits over both ethanol and gasoline fuels. It is a much cleaner burning fuel that leave no carbon footprint as its only emission is water vapor which is comprised of mostly nitrogen which make up over seventy five percent of the air we breathe. It also offers roughly two-thirds better fuel economy at about half the price. As you can see, water as fuel for cars is a trend.

The lack of available hydrogen fueling stations and the complications of on-board fuel generation are the two biggest current setbacks to making hydrogen-powered vehicles commercially available. Unless you live near a hydrogen production facility, you probably cannot buy hydrogen fuel at a location convenient to you.

The process of producing great quantities of hydrogen fuel on board a vehicle to burn instead of gasoline still faces technological limitations, compromising widespread use of this technology on the road. A few automobile manufacturers planning to manufacture fully hydrogen-powered vehicles are also planning to produce home hydrogen gas fueling stations. This will not only allow you to fuel your car but also generate power for your dwelling, giving you a big cost reduction in energy expenditure and help in environmental protection.

There are several viable options for converting your gasoline-powered vehicle into a hydrogen hybrid that will allow you to take advantage of both the increases in fuel economy and a large reduction in your vehicles emission. Commercially available kits produce small amounts of hydrogen using the electricity generated by your car and add it to the gasoline air/fuel mixture the car is already running on. Prices range in cost from roughly two hundred dollars for kits composed of easy to find parts, to kits requiring specialty equipment that costs several thousand dollars.

Large-scale commercial production of hydrogen fuel shows signs of expanding, and it will likely become more widely available. This will allow us to begin seeing innovative new methods of using hydrogen gas to fuel vehicles. But until then, backyard mechanics can experiment with putting together their own version of a hydrogen gas hybrid using a few easy-to-find parts and water. You can find instructions for this so-called “water4gas” kit at various websites.

It’s not only do-it-yourselfers and automobile manufacturers paying attention to hydrogen gas in cars, energy companies and even governments are now exploring hydrogen fuel technology. With more interest along with financial resources to back up continuing research, the day may soon come that hydrogen gas will be the fuel of choice powering your car.

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Hydrogen generator for cars

Imagine a tiny power plant small enough to fit in the trunk of your car and in some cases under the hood. With your own hydrogen generator for cars, this is the possibility of hydrogen fuel for cars – you become the hydrogen fuel car tycoon

Hydrogen as a fuel for cars has a great range of benefits. It costs less than gasoline, offers better mileage than gasoline and puts out low to zero emissions.

A big drawback in converting your car to run on hydrogen gas is the absence of hydrogen fueling stations in most areas, as water as fuel for cars is a pretty new concept. If you live close to a hydrogen fuel production place, it won’t be a problem to refuel but if not you would have to make your own fuel using a hydrogen generator for cars.

Hydrogen can be produced using electrolysis to generate hydrogen from water. Electrolysis works by sending currents of electricity through water and this separates the hydrogen gas from the water. You can then use the hydrogen to power the car. Making your own hydrogen generator for cars can be accomplished by installing a converter that will produce hydrogen from water. Plans for the water for gas systems are readily available for purchase online.

There is more than one way to make use of a hydrogen generator for cars. You can install a combination system that uses hydrogen produced by a small electrolysis system that gets its power from the existing electrical system in your vehicle. A system to make hydrogen fuel can be made from already designed plans using regular materials that can be found at hardware stores, but some of the more intricate parts need to be special ordered. Complete on-board generator systems are the other possiblity for generating enough hydrogen to be the sole source of fuel.

The hybrid approach reduces both the gasoline consumed by your vehicle and the amount of emissions your vehicle puts out. This saves both money and the environment. This method produces a smaller amount of hydrogen gas that is fed into your vehicle induction system via fuel line plumbed into the same intake system that feed the gasoline air/fuel mixture into your vehicle.

You can replace your vehicle’s gasoline requirements wholly with hydrogen fuel by putting in place a hydrogen generator for cars, which produces enough fuel to power the vehicle. You’ll need a miniature electrolysis system for such generation and facilities to store both the generated hydrogen as well as the electrolysis system. A few modifications are necessary to implement to make this complex and expensive method for the production of hydrogen fuel. But when it is complete you get a zero emission vehicle and you pay about two-thirds less than what gasoline-powered version would cost to drive.

All things being equal, it makes better sense and is more cost-effective at this point in time to have a hybrid hydrogen generator for cars. There is a limited amount of stations that offer hydrogen fueling and it is hard to repair a hydrogen generator right now, therefore going hybrid appears the safer choice.

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Helping our environment is something we should all consider and one of the best ways is to switch from conventional energy to solar energy as the primary source to power up our homes. There are so many benefits of solar energy that will not only save you money but also protect our environment, so it should be time for you to consider having home solar power generation as a way to power up the entire home.

Being Informed

More and more people in all parts of the world are becoming enlightened about home solar power generation; however, for the many that are still unaware of this new and alternative energy source it is time to become informed about home solar power and to then take affirmative action once they have understood the many benefits.

For those that do know a bit about home solar power generation there is little need to convince them to switch over to using solar power because it (solar power) has a very enviable reputation. The sun has powered up the earth from the very earliest times and being renewable source of energy it will not run out on us in the foreseeable future. Even a tiny fraction of total solar radiation is enough to power up the entire world.

Since the beginning, solar energy has provided the energy to heat various things and will continue to do so which is why solar energy is the obvious alternative source of energy. By having home solar power generation installed even in simple ways such as having skylight windows, this gives a passive form of home solar power generation which is indeed very useful.

The other form of home solar power generation is known as active solar power and for this type of solar energy it is necessary to use solar panels that are usually installed on the roof of a home and in places that get abundant sunlight.

For many homes another use of home solar power generation is to power the home water system. Further, home solar power generation can also power up many electronic items such as laptops, and cellphones, so the use of solar energy at home is quite limitless.

The bottom line is that by availing of home solar power generation one stands to save a lot of money and at the same time one is assured of protecting the fragile environment on Mother Earth. In addition, the cost of sunlight is absolutely zero which means that you have nothing to worry on account of costs other than the cost of equipment to get started.

Hydrogen powered cars

What does a hydrogen fuel car need? Fuel!

Hydrogen gas can be produced using a wide variety of methods, several of which could include incineration of trash to produce the heat necessary to release hydrogen from both water and natural gas. While we may not be able to toss a banana peel into the gas tank and head off, that very same banana peel when used in a hydrogen production facility can ultimately be a key ingredient in the production of the fuel that will fill the tank of hydrogen powered cars.

Hydrogen powered cars can utilize hydrogen through several different methods. A hydrogen internal combustion engine powered vehicle utilizes the same engine used in the gasoline-powered production models with the exception of being modified to burn hydrogen fuel.

Existing cars can be retrofitted as hydrogen powered cars with specially designed installations to completely do away with gasoline as the fuel source. There are also kits available to modify gasoline engines so that hydrogen gas is added to the current air gasoline mixture. This modification not only results in dramatically improved emissions, but in strikingly higher gas mileage as well.

Powering cars through the use of hydrogen fuel can result in a vehicle that does not leave a carbon footprint since there are virtually no emissions. Hydrogen powered cars are also approximately three times more efficient than traditional gasoline fueled cars. Electric cars use hydrogen fuel to generate their own electricity. The hydrogen can be stored in a tank, fed into a fuel cell where it is converted into electrical power, and then used to supply the power that the vehicle requires.

Production of gasoline in the United States currently requires approximately three hundred billion gallons of water to produce the fuel. Producing the same amount of hydrogen gas would only require one hundred billion. The cost of hydrogen per gasoline gallon equivalent is roughly half the price of gasoline.

The number of hydrogen powered cars will increase steadily as hydrogen fueling stations become more available. Starting in 2008, several hydrogen powered vehicles will already be available in limited numbers. Even now, every major automobile company is working on designing and engineering its own model. Some car makers are also trying to develop in-home systems that produce hydrogen, meaning that we could conceivably not only have pumps in the driveway to fuel up hydrogen powered cars in the future, but we could also supply hydrogen fuel to supply electrical power to our homes.

While you might think that safety could be an issue, a hydrogen-powered car is at least as safe as a regular car. High-stress testing has been done to insure that the tanks used for storing the hydrogen fuel can survive even the most serious accidents.

It’s never bad to keep thinking about other car issues as well, low cost auto insurance online in particular.

When you’re in the market for Solar How To information, how do you choose the best sources for building an inexpensive solar power generator? Information on going solar is available via several different venues. The Internet, books and videos can provide valuable information about going solar. How you choose to use the information is entirely at your discretion. Solar power is becoming more widely used as a home power source each year. With today’s economic woes, creating an alternative solar power generator for your home could save a lot of money in the long run.

One of the most important questions people ask about solar: How do you know which information to trust? The answer to that question could be much simpler than you think! The “best” information is the information that best applies to your particular project. Information about how to create a mobile solar power generator wouldn’t be helpful to people planning to fully implement solar power with their homes.

A personal solar generator for your home, cabin, apartment or RV could be a very valuable asset for people who often experience blackouts or brownouts. Even small power flickers can cause computer users to lose valuable time and information. People who work from home often use an interruptible power system (UPS) to protect their computers from immediately losing power in the event of a power outage. The use of a UPS is very comparable to the use of a Solar backup generator. Freelancers and contractors who travel a lot benefit greatly from small, inexpensive solar power generators.

Solar: How a Small Backup Generator Can Reduce Energy Costs

Small, homemade solar power backup generators can be made for under $400 and reliable for up to five consecutive hours of power. Some avid campers and nature lovers have made it a point to take their laptop and solar power generator on camping or fishing trips. They never have to worry about falling behind on work or the latest news while they’re relaxing and enjoying nature.

Installing solar power in your home not only saves a lot of dollars on electricity per year, but your initial investment could also pay for itself within 1-3 years. Solar power also adds to the resale value of your home. Minor improvements to homes often create the biggest buzz and the greatest return on investment when the homeowner considers selling the home. A home that will save the new owner money on the electric bill and help the environment at the same time would be much more attractive to potential home buyers.

Farmers have learned to harness solar power for use on tobacco, wheat, corn and livestock farms. By use of solar powered lighting among other things, farmers have learned to solar power saves time and money. The initial investment is minimal when compared to the costs of setting up a full electrical system for various areas of their farms.

Utilization of solar power for farm use helps the environment just as much as it helps the farmer’s bank account. Fossil fuels are used in the process of making solar components, but the products themselves emit no harmful pollutants into the surrounding environment. Informational websites and books can help you determine if solar energy is right for you.

Solar Websites and Books

Solar how to websites are very convenient sources of information. Another great resource for solar know-how is books. Several books from the Evil Genius series, McGraw Hill’s DeMystified or even the Dummy series can help even the newest solar rookie understand the basics. When shopping for information or products, it’s a great idea to take your reading materials with you. When approached by a store representative, ask specific questions regarding solar how to.

When searching the web for information on how to implement solar power, be very specific with your search words and use quotes where appropriate. Simply searching your favorite search engine for solar generator information will bring up a lot of useless information that doesn’t apply to your particular project. Try using quotation marks when searching. Instead of just searching for solar power generator try “solar power generator” to target the phrase or any other phrase you’re searching for.

Make the Best of Solar How to Information

Website, books and videos are great sources of information. Each resource can provide information on everything solar. How would you find the best prices for solar? How would you build your own solar generator? Knowledge is a great foundation for any project.

Solar power isn’t rocket science, but the more you know, the better the end results will be. Before making the decision to fully integrate solar power, do your research. The more you understand, the more smoothly your project and transition will go. The Internet, videos and books are very valuable resources to help answer those questions and many, many more.

Producing hydrogen fuel

Hydrogen gas can be produced using a wide variety of methods and raw materials making is probably the most flexible fuel on the earth. In a traditional plant setting, producing hydrogen gas can begin with raw materials such as coal, water, natural gas, algae or biomass (natural organic composting materials).

Gasification is the technique used for producing hydrogen gas from coal, biomass, or other solid material. It involves subjecting the material or feedstock to extreme heat, cooling it, separating the hydrogen gas, and purifying it for the use in hydrogen fuel car. Hydrogen gas as a fuel for electricity generation will produce much less pollution that regular coal-fired power stations.

Producing hydrogen gas using water is one of the greenest production procedures so far and can be done by several methods. Using electrical current, water can be separated into its component parts of hydrogen and oxygen. The power required can easily come from renewable, natural sources as the sun, wind and water. Nuclear energy or even the earth’s own geothermal energy may also be used.

In Thermochemical Water Splitting, water is heated at high temperatures with certain chemicals to create a chemical reaction that separates the hydrogen from the water. This process is usually found at nuclear power plants. The High Temperature Electrolysis process used for producing hydrogen gas is the same as electrolysis fueled by electricity except that this method utilizes heat generated by nuclear power generation directly, instead of using electric current to bring water to the appropriate temperature.

Producing hydrogen gas using natural gas as the raw material is achieved through a process called Steam Methane Reformation. This is a two-step method, which burns the natural gas to create steam, which results in a synthesis gas from which the hydrogen can be separated. This method, though not as environmentally friendly as electrolysis is currently used to produce roughly ninety-five percent of all hydrogen in the United States.

By employing Photo-Biological Production, hydrogen can be obtained from algae or bacteria recovered from wastewater. Under this method, when deprived of sulfur, algae produce hydrogen instead of oxygen. The greenest of all possible methods, this method’s feedstock is created from waste by-products and renewable wastes, and is heralded by environmentalists.

When compared to fossil fuel production, producing hydrogen gas clearly provides numerous benefits. No matter the exact production method used, plentiful sources of hydrogen make it clearly the fuel of the future.

Being green does not mean you need to lose the cash. Don’t leave too much on a table, read the tips about getting low cost auto insurance online.

by Anna Stone
Solar Battery Chargers

While solar battery chargers have existed for decades, it is only in the past few years that their popularity seriously increased. In part, this is because of advancements in technology. It is also a result of our increased awareness of our need to shift to cleaner energy sources.

Advancements in technology have reduced the sizes and weights of solar panels, while increasing their efficiency. This makes it possible for small lightweight portable solar chargers to be produced. Another factor which plays a part in the rapidly expanding field of portable solar power, is the increased amount of electronic gadgets that we carry around.

Twenty years ago, not many people were walking around with cell phones. Today, most of us carry at least a cell phone, iPod or MP3 player, and a digital camera around with us – either on a daily basis, or during weekends and vacations.

With all these electronic gadgets comes the need for electricity and power. And, thus portable solar chargers have found their niche.

There are several advantages to solar chargers and portable solar panels. First of all, they are eco/environment-friendly. They don’t produce harmful waste, and can be used anytime and anywhere that there is daylight.

Many people think that solar chargers can only be used in warm sunny areas. This is not necessarily true. Solar panels are more effective in colder temperatures. In fact, a solar panel or charger would create more electricity on a clear day in Alaska, than it would in the sun of the Arizona dessert. This is because the temperature of the solar panel influences the effectiveness with which it can convert solar energy into electrical energy.

The above fact, combined with the increased effectiveness of solar panels, has made solar chargers an attractive method of powering or recharging small electronic gadgets.

These days, a small solar battery charger can run your iPod, cell phone, or MP3 Player. It can recharge your digital camera and it can be used to recharge batteries.

Some solar chargers, such as the Solio Charger, even come with internal batteries which are automatically charged when the solar charger is exposed to daylight – allowing you to recharge your cell phone or other electronic device from the solar charger, later on. Solar chargers with built-in batteries usually store sufficient power to recharge your cell phone twice, or to run an MP3 player or iPod for several hours. Your digital camera can also be fully recharged by one of these devices.

Solar chargers are starting to be a part of many standard emergency kits. They are a reliable source of power so long as there is daylight available.

Solar chargers are a convenient source of power in remote areas, on field trips, or when out hiking and camping. They can recharge batteries, cell phones, or other gadgets in any location.

In addition to being convenient, solar chargers are a clean energy source and do not cause pollution or other harmful emissions while creating electricity. They also reduce the need for disposable batteries, and thus reduce the overall volume of harmful chemicals and toxic waste in circulation on the planet.

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Anna Stone supports green energy and a cleaner environment. For more information see Solar Energy and Alternative Energy.

The sun is a really amazing source of energy and even though man kind have used this energy for many different tasks for many long years; only now has it become abundantly clear that if we do not tap its vast power we will soon run out of regular energy sources. Researches have started studying the possibility of using solar power at home. Today there are lot of diy home solar systems for household use. And if enough effort is poured into exploiting the solar power we would soon be able to reduce our energy bills.

Small Portion Of The Sun’s Energy

Even though the sun, the incredible energy source is more than one hundred and fifty million Km away from the planet earth, its power is truly awesome and it only requires using a very small fraction of the Sun’s total energy to power up the entire world. At the same time without causing even the slightest reduction in the Sun’s total power source.

Just one minute of the Sun’s energy can be, when properly changed into and used, can meet one year’s requirement of earth. At present, solar panels are one of the main ways that the solar source is being tapped and these solar cells that convert light into electricity are being used widely. However, there is a lot more that can be done to make these cells more efficient and less expensive.

Another important use for solar energy source is to heat water and this is attained through using solar panels that can be fitted on the roof of a home. Such a solution will enable to do away with having to use gas or even electricity to heat up the water in your home.

Yet another way in which solar energy source is captured is through installing a big array of numerous mirrors that help in concentrating the solar power from the sun into tiny spaces where the temperature of soar is very high. An excellent instance of this use of solar power energy source is the system in France in a place known as Odeillo where heat rise to as high as three thousand degrees Celsius.

The facility in France is truly the best example of the way that a solar energy system can be put to good use. The proper harnessing of solar energy source can lead to generation of truly phenomenal amounts of power and at the same time not damage the environment which today’s another major cause for concern. You can make use of this power and save money on your electricity bills by following the solar house plans here.