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Friday, June 26, 2009

Solar Residential

GroSolar Acquires Borrego Solar Residential Sales Division

Two of the nation's leading solar power installers announced today that they have entered into an agreement for groSolar of White River Junction, Vt., to acquire the residential solar division of Borrego Solar Systems of El Cajon, Calif. Financial terms of the agreement were not disclosed. Borrego Solar residential division operates in California as well as Massachusetts.

"This is a great day for solar. Coupled with the new benefits in the Federal stimulus bill, groSolar is now poised to help with America's energy independence and economic recovery, while making it simple, fast and affordable for customers to 'go solar.' We look forward to integrating the Borrego Solar residential division's great reputation and quality into groSolar to benefit Californians." said Jeff Wolfe

As a result, groSolar will emerge as the fourth-largest residential solar power installer in the United States, while maintaining its national distribution and commercial operations as well. NGP Energy Technology Partners and SJF Ventures, two of the premier energy technology private venture capital funds in the United States, have provided capital for groSolar through previous transactions.

With the purchase, the groSolar name will begin appearing at Borrego Solar residential locations in San Diego, Berkeley, Sonoma, Orange County, Silicon Valley, and Massachusetts.

In a related release, Borrego Solar today announced that the company will narrow its focus to its fast-growing Commercial and Government Divisions, while immediately expanding operations to New York and New Jersey. Commercial and Government projects comprised 75 percent of the company’s revenue in 2008. Borrego Solar, which recently announced a $14 million round of venture financing, will continue to maintain significant operations in New England and California. GroSolar officials expect the acquisition to benefit homeowners by making solar electric power even more affordable through groSolar’s advanced sales, marketing and installation capabilities. Jeff Wolfe, CEO of groSolar, said: “This is a great day for solar. We look forward to integrating the Borrego Solar residential division’s great reputation and quality into groSolar to benefit Californians.”

With the sale of our Residential Division to groSolar, we can better address growing demand within the commercial and government sectors while expanding geographically into new regional markets,” said Aaron Hall, Chairman and CEO of Borrego Solar. The same month, the company signed a $175 million, four-year purchase agreement with Evergreen Solar to assure supply of its photovoltaic solar panels. The company signed an exclusive North American distribution agreement in October 2008 with Motech Industries, a leading maker of inverters that turn electricity from photovoltaic solar panels into household electricity. GroSolar also recently signed an exclusive distribution agreement for the Panel Claw flat roof solar mounting system.

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Source: RenewableEnergyWorld.com

Wednesday, June 17, 2009

Solar Installation

Solar Installation Training Choices

If you're thinking about taking some classes so you can learn more about this popular topic called solar energy, one you may want to check out is the installation training. Solar installation training will give you exactly what the name says. You'll learn how to effectively install a system into a home or business.

How Does Solar Energy Work?

Solar energy is developed by the sun hitting the solar energy panels. The energy system consists of many components but the main part is the solar panels or photovoltaic cells. When the rays hit the panels, energy is generated and converted into electric currents and then electricity. The electricity has to be used right way or you will lose it unless you have batteries to store the excess energy. Solar installation training will give you knowledge on the different types of batteries you can use with your energy system.

Most homeowners that have solar energy systems installed in their home also have the batteries as well. Solar energy can be used for all your electricity, hot water and heating needs. Now that you've learned the basics about solar energy in your home, you're probably really eager to check out some training courses, possibly even a solar installation training course. Many Installation Training Options

If you're interested in learning more about installation, training courses are available in small courses and complete programs. You'll learn how to install the solar systems as well as how they operate and how to maintain them. Theses solar installation training programs and courses are excellent learning tools, particularly for the homeowner that wants to convert to solar energy and do the installation themselves.

Solar energy systems are being used more than ever before with more people choosing them than ever before. Their energy savings and help with the environment are their main two reasons for opting to go with a solar system. The major drawback of switching to solar energy in the home is the initial cost to get the system installed and set up properly. Solar installation training will give you the knowledge and skill you need to install and maintain your own system, saving you and your family a great deal of money. With the many options available to you, you can take as few or as many solar installation training courses as you feel you may need.

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Source: EnzineArticles.com

Wednesday, June 10, 2009

Electric Generators

Electric Generator Has To Be Chosen Right!

It is a known fact that power supply is very important in present world and is required for life at homes, offices and factories to move smoothly. Therefore, if a power breakdown occurs, it is very inconvenient for homes (ruin a good holiday) and offices (loss of a business deal). An electric generator is worth buying if you have frequent breakdowns. Therefore, you should know what and how to buy an electric generator.

You have to remember that you should choose the most suitable and reliable electric generator available. You will find generators that are good for camping out, boating and amusement. You can also find a generator that is good for home use and construction use. In addition, a quiet electric generator is recommended for home and hospital use. Quietness of a residential electric should be also observed. A generator should be quiet depends on the place and type of it. When you go camping, you should have a very quiet electric generator.

For construction use, having an industrial electric power generator would be fine, although purchasing a portable electric generator may prove to be useful in construction sites too. The noise level of the electric generator is another factor, depending on the place where you wish to use it like quiet ones are recommended for residential areas (homes), hospitals or camping. Even quiet electric generators can be of various types like some are almost noiseless, while others are less noisy like the economy ones. Industrial electric power generators are used at industrial/construction sites. Some companies are famous for producing electric generators with start button that will allow you start the equipment very easily. Examples of these companies are Kubota, Yanmar, Yamaha, Onan, Kohler and Caterpillar Generators. And some of the generators available are portable. Just like the voltage in your house, generators also have this AC voltage. But you should remember that the amount of electricity that electric generators can produce is just limited. Watts is used to know the amount of power or electricity a generator can produce.

Generators are similar to the voltage, when talking about AC voltage they have. But there is a limitation on the amount of electricity each generator can produce. The electricity that these generators produce is measured in watts.

Rated power is the power produced by an electric generator and amounts to 90% of the power produced by the generator. Two kinds of loads exist, the resistive load that uses electric motors (found in televisions, lights, ovens, toasters etc.) and the reactive ones (fridge, Air conditioners) that uses electric motors.

There are some precautions regarding the usage of the electrical generators. It is better to keep the electric generators in open places as they require constant fresh air supply and not in any closed areas like basement, garage or homes. Moreover, just like any other machinery equipment, before operating an electric generator, you should read its manual.

Check out my other article on Solar Heating
Source: Articledashboard.com

Thursday, June 4, 2009

Electric Generator

Electric Generator Has To Be Chosen Right!

It is a known fact that power supply is very important in present world and is required for life at homes, offices and factories to move smoothly. Therefore, if a power breakdown occurs, it is very inconvenient for homes (ruin a good holiday) and offices (loss of a business deal). An electric generator is worth buying if you have frequent breakdowns. Therefore, you should know what and how to buy an electric generator.

You have to remember that you should choose the most suitable and reliable electric generator available. You will find generators that are good for camping out, boating and amusement. You can also find a generator that is good for home use and construction use. In addition, a quiet electric generator is recommended for home and hospital use. Quietness of a residential electric should be also observed. A generator should be quiet depends on the place and type of it. When you go camping, you should have a very quiet electric generator.

For construction use, having an industrial electric power generator would be fine, although purchasing a portable electric generator may prove to be useful in construction sites too. The noise level of the electric generator is another factor, depending on the place where you wish to use it like quiet ones are recommended for residential areas (homes), hospitals or camping. Even quiet electric generators can be of various types like some are almost noiseless, while others are less noisy like the economy ones. Industrial electric power generators are used at industrial/construction sites. Some companies are famous for producing electric generators with start button that will allow you start the equipment very easily. Examples of these companies are Kubota, Yanmar, Yamaha, Onan, Kohler and Caterpillar Generators. And some of the generators available are portable. Just like the voltage in your house, generators also have this AC voltage. But you should remember that the amount of electricity that electric generators can produce is just limited. Watts is used to know the amount of power or electricity a generator can produce.

Generators are similar to the voltage, when talking about AC voltage they have. But there is a limitation on the amount of electricity each generator can produce. The electricity that these generators produce is measured in watts.

Rated power is the power produced by an electric generator and amounts to 90% of the power produced by the generator. Two kinds of loads exist, the resistive load that uses electric motors (found in televisions, lights, ovens, toasters etc.) and the reactive ones (fridge, Air conditioners) that uses electric motors.

There are some precautions regarding the usage of the electrical generators. It is better to keep the electric generators in open places as they require constant fresh air supply and not in any closed areas like basement, garage or homes. Moreover, just like any other machinery equipment, before operating an electric generator, you should read its manual.

Check out my other articles on Solar Heating
Source: ArticleDashboard.com

Saturday, May 30, 2009

Electricity Price

Windy changes in Spain

In May 2007, the Spanish government published a long-awaited decree that regulates renewable energy generation payments. Two issues have focused particular attention: the amount of, and caps to, renewable energy subsidies; the alleged retroactivity of the proposed regulation.

Renewable energy sources, and particularly wind energy, enjoy subsidies that can complement electricity market price (“Traditional hydro” is not considered to be renewable for these purposes). These subsidies represent a significant part of the energy cost in Spain, as shown in the figure below, based on data from CNE, the Spanish National Energy Commission.

Energy generation costs, and renewable energy sources (mostly wind) and combined heat plant subsidies are shown in red and salmon, respectively. Permanent costs (orange) mainly include subsidies to the Spanish archipelagos (Canary and Balearic islands) as well as payments because of past years’ deficits. Final electricity price is regulated by the government. In 2006 average final electricity price was 77.644 €/MW-h, slightly lower than average cost, 78.220 €/MW-h. For 2007, the forecasted figures are 88.810 €/MW-h and 101.244 €/MW-h. The deficit is forecasted to be 12.439 €/MW-h that makes a sizeable pink rectangle. Main reason is, on the one hand, greater fuel prices that have lead to increased production costs; and, on the other hand, the government reluctance to significantly raise final electricity price.

The previously mentioned figures are quite relevant for wind energy remuneration under the former regime: that of Royal Decree 436/2004 issued in March 12th, 2004. Wind generators could choose between being paid a regulated tariff or the wholesale market price plus a subsidy. The figures were given as percentages of a reference final electricity price, namely 90% of it in the case of regulated tariff, or 50% in the case of subsidy. The final reference price is similar to the average final electricity price, and wholesale price is closely related to production cost. The percentages above were established when electricity wholesale price was about 36 €/MW-h. As fuel prices have escalated, so electricity market price has done (from 28.74 €/MW-h in 2004 to 55.75 €/MW-h in 2006).

Wind generators have mostly chosen to be remunerated according the “market price plus subsidy” option. For instance, if we assume a reference price in 2004 equal to average final price (77,644 €/MW-h) and that wind generators sell at average 2004 market price (55.750 €/MW-h), they would be remunerated at 0.5*77.644 + 55.750 = 94.572 €/MW-h. Actual remuneration has been possibly lower, because reference price is not exactly average final price and periods of high wind generation are correlated with lower than usual electricity market prices. The new decree (Royal Decree 661/2007 issued in May 25th, 2007), as the former one, establishes that wind generators may choose between a fixed payment or the market price plus a subsidy. A key difference is that any wind generator that decides to go for the “market price plus subsidy” will have its income bounded.

Specifically, a cap and floor of the income have been established at 84.944 and 71.275 €/MW-h respectively. Note that the floor is quite close to the regulated tariff and, perhaps more significantly, that the width between floor and cap is relatively narrow. Besides, facilities operating prior to 2008 have the right to perpetually receive the more generous tariff of the previous decree, or the previous decree subsidies until 2012.

Another novelty is the provision of special subsidies for wind generators re-powering. The subsidies are capped to 7 €/MW-h, being granted by the government on a case-by-case basis. Only facilities operating prior to 2002 are eligible.

The above economic regime is intended to incentive wind power penetration. Therefore, new wind facilities will no longer be eligible once the national objectives are met. Specifically, the decree set this objective at 20,155 MW of installed capacity (presently, installed capacity is about 11,000 MW). The government initial draft significantly differs from the final decree. Generators argued that proposed changes in the regulation regarding existing plants were not only inconvenient, but possibly illegal under Spanish law. CNE was legally obliged to report on the proposed draft. As explained above, the final decree is somewhat closer to the position of generators and wind-generators makers that the initial proposal.

The remuneration based on market price plus subsidy has been justified on the basis of providing economic signals to efficiently operate wind generators. However, this scheme also remunerates wind investment according to market prices, whilst government objectives on renewable penetration are actually independent of whatever the market behaviour may be. The new decree provisions regarding caps and floors, and a maximum wind capacity to be subsidised possibly aim to balance these concerns. In the Spanish case, the combined value of these justifications seems to hover around 30 €/MW-h (the difference between a desired wind price of about 80 €/MW-h that regulation suggests, and an expected long-term electricity price of around 50 €/MW-h).

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Source: EnergyPolicyBlog.com

Sunday, May 24, 2009

House Wiring

Home Wiring Basics

Home wiring is not something to fool around with. It is literally a life and death matter. In order to ensure your home wiring is done correctly, there are a few basics that you need to be aware of.

No Power = No Trouble

The key to safe basic house wiring is always keeping in mind that electricity packs a big, and deadly, punch. Even the most trained professional takes their life in their hands if they don't follow basic safety procedure. The best preventative measure you can take, whether you're installing basic electrical wiring, or just examining the wiring you do have, is to always make sure the power is turned off from the get go. Whether you're re-wiring your entire home or just replacing a faulty outlet, be sure to take a trip to the control panel and cut the power to the area you're working on.

Know Your Electrical Code

With electrical work there is never an excuse not to follow rules and regulations. As mentioned before, electricity can be a dangerous animal if it isn't treated properly. Your locality's codes and regulations regarding residential wiring have been put in place for a reason: to protect you, the homeowner. Anytime you are working with basic house wiring, study up on standard procedures so you don't put your family or yourself in jeopardy. And if you're undertaking a major home wiring project, get familiar with your local inspector.

Components of Basic Electrical Wiring


Besides safety considerations and regulations, the other thing you want to familiarize yourself with is the make up of your home wiring. It boils down to three basic components:
  • Service Entry. This refers to the point in your home where your electrical service goes from the main grid into your home. Besides that, make sure your service entry is properly installed so no water can penetrate the access point.
  • Panel Board. Your panel board is your control center when it comes to electrical wiring. Whether you're installing a dishwasher or running wiring to a new addition, this is the place you visit to ensure electricity is cut off when you start your work, and where you install new breakers if you're undergoing a major remodel.
  • Branch Circuits. This refers to the isolated areas of areas of your home where your panel board directs electrical currents. It's the reason you can cut power to your kitchen while leaving the rest of the house operational.
Electrical work is one of the exceptions. Unless you're experienced in home wiring, you don't want to do this job yourself. The safety risks are just too great. Add to that the need to meet local rules and regulations, and it's a good idea to hire someone who is experienced in basic house wiring to tackle this job for you.

Saturday, May 23, 2009

Electromagnetics

Engineering Electromagnetics

Engineering Electromagnetics is a new text aimed primarily at undergraduate teaching although it could easily serve as a reference text for those interested in the area. Electromagnetics is a notoriously unpopular topic with many engineering undergraduates. This text however provides a very comprehensive theoretical treatment of electromagnetics whilst attempting to treat the subject as a primary topic itself rather than playing a subordinate role to other courses. This is achieved by including a large and varied number of experiments and practical engineering applications, something sadly lacking in many other texts.

The book contains a rigorous treatment of all the main theoretical aspects of electromagnetics. Chapters 1 and 2 are devoted solely to vector algebra and calculus. Chapters 3 and 4 introduce electric fields and potential whilst Chapters 5 and 6 extend this into the analytical and numerical solution of electric field problems. Numerical solution techniques (finite difference and finite element) are a particular topic that is often omitted from many undergraduate textbooks. Chapter 7 concentrates on the treatment of steady current flow. Static magnetic fields and magnetic materials are introduced to the reader in Chapters 8-10. Chapter 11 is devoted to the development of Maxwell's equations whilst Chapters 12 and 13 continue the development into electromagnetic waves, propagation, reflection and transmission. The remaining six chapters focus on transmission lines including transients, waveguides and antennas. Each chapter contains many illustrations and examples, concluding with sections containing experiments with explanations, and applications and problems.

This is without doubt an impressive and comprehensive text. However it is a book that would be a useful addition to any library collection and one that I personally have found to be extremely useful in the development of undergraduate courses in electromagnetics.

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Source: FindArticles.com

Friday, May 22, 2009

Electrical Stores

Stop Paying For Electricity - Build a Combined Solar-Wind Generator System

How would you like to be completely free from paying high monthly electricity bill? If this happens to be what you are hoping for, then you need to seek to get off the grid, by building a combined solar-wind generator system. Many people around the world have now started to rely on this combination as a means of cutting the cost of their high electricity bills.

At one point, a solar-wind generator combination, or even the possibility of running both systems independently of the other, was seen as a luxury that many could not afford. But if you were to travel around the world today, you would be surprise to see how things have changed, as people from all walks of life are now able to own their own solar or wind power systems, or combined solar-wind generators.

How is it possible that those who previously could not afford either system are now able to afford a combined solar-wind generator? The answer is -- many people are still unable to afford to buy expensive systems, but most can certainly afford to build their own. This has been made possible, due to the rise in popularity of do-it-yourself solar-wind generator guides.

These do-it-yourself guides make it possible for anyone at any level (novice or technically inclined) to be able to build and install their own combined solar-wind generator systems. Why it is necessary to build a combined solar-wind generator system?

Since your main objective might be to completely do away with the burden of your high electricity bill, combining the energy sources of both solar and wind is the best option of generating sufficient electricity to get off the grid. Using the free power of the Sun to provide energy to your home makes perfect sense. Find out how quickly and easily you can begin saving money on your energy costs with a simple wind-solar project.

DIY-Energy has resources which will show you how to build a Solar-Wind Generator System for your home for a lot less than you might think. Start today and save hundreds, or thousands off your energy bill each year.

Check out my other article on Wind Generator
Source: ArticlesBase.com

Monday, May 18, 2009

Electrical Installation

Information About Electrical Installation and Wiring

Until recently the standards and regulation surrounding the electrical wiring and installation in the UK varied greatly from other European countries. However the standards and regulations in the UK no longer differ substantially from other European countries.

When it comes to the UK electrical power circuits, they are normally described as either radial or ring. If a power circuit is radial the power is transmitted from point to point, which is conducted by a single length of cable that links each point to the next. Lighting circuits are normally wired in this way, but it may also be used for low power socket circuits.

The ring circuit however is unknown in many other national wiring codes. With a ring circuit a cable starts at the supply point and then goes down to each device, the same way as in a radial circuit. The last device is connected back to the supply so that the whole circuit forms a continuous ring. The building regulations, which are Part P, were introduced to England and Wales on 1st of January 2005.

When these building regulations were introduced in 2005 they were met with a lot of controversy especially when it come to the rules surrounding work that is carried out by non-professional bodies such as DIY work. Under the new regulations, initiation of any work other than simple changes becomes notifiable to the local building control authority. Work on a bigger scale than this should be carried out by a professional.

The Building Control Authority must be informed of any work that is carried out by someone not qualified under this scheme, unless the work is done in an emergency. Any electrical work carried out needs to be approved and when it is approved you will be granted a certificate, a Building Regulations Completion Certificate.

If you do have any electrical wiring or installation work that needs to be carried out on your property it is important that you hire a professional to not only make sure that your work is carried out in a professional manner but to ensure that your electrical installation or re-wiring etc meets the standards set out by the Part P regulations.

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Source: EnzineArticles.com

Thursday, May 14, 2009

Generator Part

Homemade Wind Generator

Making a homemade wind generator has gained much popularity in recent years due to rising oil prices and high energy expenses. What a wind generator typically does is to channel wind in greater amounts and to convert it into energy. You might think that building a generator takes a complex process. A homemade generator for wind needs to have quality blades and a sturdy tower. A good wind generator manufacturing plan will help you go through the entire process successfully.

A few simple tools, wind generator parts from your local hardware store and some used auto parts are all you need to get energy from wind. It's a breeze to get started with wind power systems. You will be helping our environment and saving yourself some serious cash by building you own wind turbines. Renewable wind energy is worth learning about

The plans should be step by step directions so you don't get confused. The plans will show you how to get all the parts you need to build your wind mill generator. A wind homemade generator is also an excellent substitute for the more expensive solar generators which make use of solar panels. If you have a solar generator at home, you can build a wind generator so that you will have an alternative energy source even during breezy days.

You are very smart to consider wind technology. Wind is free, right? If you answered yes, then you MUST build your own wind generator. There is a little more to know then just building a wind turbine. If you use a wind generator you can easily cut electricity bills by 70% or more.

Check out my other articles on Wiring Diagrams

Friday, May 8, 2009

Electricity Power

The High Costs of Solar Electric Power

Executive summary By Klaus H Hemsath

Promotion of solar power generation is booming. Why are solar farms built when financial data clearly show that solar power is still the most expensive electricity generation technology available?

Solar power plant developers and marketers obviously know that they need to lower costs. There are two major technologies for solar energy conversion. Electricity production with steam is a very mature technology. This technology will most likely become the dominant solar electric power generating technology - eventually. The concentrated sunshine creates very high surface temperatures on the solar panel. Present production costs for generating electricity with solar panels are hovering around $0.50 per kWh. Right now, solar power does not yet make economical sense.

None of the available technologies using renewable energy can compete with the cost of electricity generation from coal.

The technologies for generating electricity with solar power, wind power, marine power, and geothermal power are very well understood. At present, a respectable number of windmill farms and solar panel farms are being installed. Solar power does not make economical sense, yet. As long as solar power constitutes only a very small fraction of overall electric power generation, the additional costs of storing intermittently produced electricity power are not yet of concern. Intermittent, renewable energies and electric energy storage are inseparable.

Why You Need Solar Electrical Power

Executive summary By Richard zook

Renewable energy refers to those energy solutions that can keep churning energy without exhausting the resources.

Alternative energy sources are becoming increasingly important, and becoming increasingly popular and affordable. The two main types of electricity generation are solar electrical power and wind power. Solar power generation is the use of solar panels to capture the sun's rays and convert it into electricity. Solar electrical power comes from the sun's energy, the most abundant energy available on earth.

Check out my other article on Wiring Diagram

Tuesday, May 5, 2009

Energy Saving Bulbs

The Different Types of Energy Saving Light Bulbs

Exsekutif Summary By: Muna wa Wanjiru Has

Energy Saving Light Bulbs should be in all homes. Almost all the incandescence lights consume more energy than the fluorescent lamps. There are different types of these power or energy saving lamps, which are as follows.

Compact Fluorescent Lamp (CFLs) Bulb

These are 11 watt A19 compact fluorescent bulbs. These are energy saving bulbs as they save energy around 40 watts than that of the incandescent lamps. Along with this, supra compact fluorescent lamps will lasts around 10 times more than that of the incandescent lights by saving around 75% of the energy.

Blue Patriotic Light

These are the lights which will require no more replacements of the bulbs so one can replace there old bulbs with these bulbs so as to save the energy required.

Halogen Floodlight

These are 38 watts PAR 38 halogen floodlight which saves energy up to 5660 hours energy.

The Different Types of Light Bulbs Available in the World Today

Light Bulbs are important, so stock up! There are three main types of these bulbs which are Energy saving bubs, Fluorescent bulbs and the Incandescent bulbs. These are as follows:

1. Energy saving Bulbs:The basic types of the energy saving lamps are as follows:
  • GU10 Mini Energy Saver 7W daylight: These are well to replace the halogen lamps. Generally halogen lamps will need around 35W and these will needs only about 7w of the energy and therefore is the energy saving lamps.
  • Full Spectrum energy saver: These are the full spectrum energy saving lamps which will give out around 6500 degrees of the color temperature.
2. Incandescent Light Bulbs:
These are the special bulbs which are blue finish bulbs which will be helpful in simulating the color of real day light which are required in the craft work or the needle work.

Check out my other article on Wiring Diagram

Sunday, May 3, 2009

Electrical Testing

High Voltage Electrical Testing

Executive summary By : Robert Palmer-7122

If you are not sure as to what high voltage electrical testing covers, you will want to get in touch with a company that offers these services. Just a few things that high voltage electrical testing includes is a complete maintenance check, breaker relay testing, grounding system testing, battery testing, cable testing, power testing, protective relay calibration, and switchgear and motor control maintenance among many others. When you opt for high voltage electrical testing you will get a full check from top to bottom.

As you can see, high voltage electrical testing is very important to some businesses. Of course, it is not right for every business but there are many that would benefit from this. You owe it to yourself to get in touch with a high voltage electrical testing company today.

Who Can Get Service?


If you are interested in high voltage electrical testing you are not alone. The fact of the matter is that not every type of business would benefit from high voltage electrical testing.

There are many industries that most high voltage electrical testing company’s service. You may very well find out that you need high voltage electrical testing right away

When hiring a high voltage electrical testing to work for you, make sure that they have plenty of experience. A good high voltage testing will catch any problems before they develop into anything too serious. Overall, many types of businesses can benefit from high voltage electrical testing.

Check out my other article on solar lighting

Friday, May 1, 2009

3 Way Switch

Wiring Three Way Switches

Executive summary By Gary Chappell-Smith

The difference between a standard switch and a three way switch is one additional terminal, or connection. A 3 way switch has 2 terminals that are either silver or brass colored and one terminal that is dark colored. The silver or brass terminals are called travelers or messengers and the dark colored terminal is called the common. In a 3 way switch circuit there will be two 3 way switches and a light or series of lights that are controlled by the switches. To understand this terminal, consider for a moment a standard switch that has only 2 terminals. When wiring a standard switch the incoming power feed (hot) conductor is connected to one terminal (usually bottom right) and the outgoing power feed to the lights is connected to the other terminal (usually top right).

Wiring your house and a Three-way Switch

Executive summary By Robert

Taking the time to plan the wiring of a house always pays off in the long run. Wiring you house this way will allow for a lot of flexibility on where you place your furniture. Canned lighting is appropriate for areas such as the kitchen and family room. Ceiling fans with a light fixture are another option to consider. Once you have made all the decisions on outlets, switches and fixtures it is best to draw out a plan for each room to be wired. The only real difference in a regular switch and a three-way switch is that the two switches on the opposite sides of the room are hooked together with what is called a traveler wire. Then it is just a matter of twisting the wires from the traveler with the regular wires, by matching up the colors and then wiring the switch normally.

Check out my other article on solar lighting

Wednesday, April 29, 2009

Free Electricity

Save Your Money with Free Electricity At Home
By: Yudha Urawa

The costs of our monthly energy bills have increased dramatically. How would you like to cut your monthly electric bill drastically? Now thanks to the Energy 4 Green system you need not invest thousands of dollars on factory made windmills and solar panels.

Free electricity can be generated from natural resource such as sunlight and wind. If you using the renewable energy resources like solar and wind energy resources can easily be used to create unlimited free electricity for your home. In order to generate free electricity for your home you need a power generator. It can be either a solar power generator or wind energy generator.

Solar power generation

Solar power is generated using solar panels. The solar panels are generally made up of two layers of silicon n-type (negative) silicon and p-type (positive) silicon. To make a solar power generator, you would need a solar panel, a battery to store power, cables, dc meter, an ac inverter, dc input, and mounting gear. You will be able to run small appliances with this setup.

The photovoltaic solar panels absorb sunlight, converting its energy into electricity. During the sunny months, this electricity heats, cools, powers appliances, fills the hot water tank, and provides energy to cook. This hydrogen is stored in tanks, and when energy from the stored hydrogen is needed, the hydrogen flows to a fuel cell where it is converted back into electricity.

Wind power generation

Wind power is green renewable energy. Wind generators convert the power of the wind to electric power and are quite efficient. You can actually build your own wind power generator from auto parts at very low cost and generate free electricity. Residential wind turbines or wind generators can produce all or part of your power requirements.

With the right conditions, a residential wind power generator can produce all of the electricity you require. You may actually produce more power than you require and in many areas you can sell the excess power to the power company.

Can you really reduce the electricity bill and save money? Of course you can reduce the electricity bill. There is no need to buy electricity anymore using free clean energy resources is a very smart idea to get rid of that high electricity bill. It is a pretty simple work to build your own solar and wind power systems to save money as never before. You can save more money and lower your living cost if switch to free power consumption.

Check out my other article on solar lighting

Sunday, April 26, 2009

electric sunglasses

You Don't Have To Plug Electric Sunglasses into an Outlet

Executive summary by Peter Leigh

An electric sunglass is the name of a design of skateboarding sunglasses. They come in many great designs such as Electric EC/DC, Electric VOL and Electric Maxwell. You can have electric sunglasses with or without polarized lenses – whatever you prefer in designer sunglasses. Well known personalities in the world of snow sports and skateboarding have endorsed Electric sunglasses.

The lenses in Electric sunglasses are made from polycarbonate – a shatterproof material. Electric Volt sunglasses do not have polarized lenses. These sunglasses have thin frames and large lenses. The style seems reminiscent of the sunglasses of the 1940’s and the Volt sunglasses are designed for fashion. Some of the Electric sunglasses, such as the Electric Maxwell and Electric Noise, do contain these lenses. Electric sunglasses, great sunglasses at a great price, and fashionable too.

You Do Not Really Need To Plug Your Electric Sunglasses into an Outlet

Executive summary by Rashme Wong

An electric sunglass is getting more popular these days. In fact, an electric sunglass is the name of a skateboarding sunglasses design. There are so many great designs like Electric VOL and Electric Maxwell. The best thing is you can have electric sunglasses even without polarized lenses – whatever you prefer in designer sunglasses. Electric sun glasses can be very fashionable and cheaper than other designer sun glasses.

Also, all the frames for the electric sun glasses are actually made from grylamide which is a nylon material/ hence, the sunglasses, even the Electric Volt sunglasses, are very light in weight and fit perfectly to your face. Moreover, electric Volt sunglasses have no polarized lenses. These sunglasses only have the thin frames and large lenses. Some of the Electric sunglasses like the Electric Maxwell and Electric Noise also include these lenses.

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Friday, April 24, 2009

Electrical Cable

Electrical Cables

By: Yudha Urawa

A cable is two or more wires or ropes running side by side and bonded, twisted or braided together to form a single assembly. An optical cable contains one or more optical fibers in a protective jacket that supports the fibers. Mechanical cable is more specifically called wire rope.

Electrical cable is a medium to distribute electricity. A power cable consists of conductor and insulator. Electrical cables are known in various configurations for various applications. Electric power cables for medium and high voltage typically include a central core electrical conductor of copper or aluminum, an overlaying semi conductive conductor shield, an electrical insulation layer formed over the conductor shield, a semi conductive insulation shield and a metallic shield overlaying the insulation shield.

Electrical cables may be made more flexible by stranding the wires. In this process, smaller individual wires are twisted or braided together to produce larger wires that are more flexible than solid wires of similar size. Tight lays during stranding makes the cable extensible (CBA - as in telephone handset cords).

A coaxial electrical cable for high speed transmission of electric signals generally comprises a metallic inner conductor surrounded by a dielectric insulating material, which in turn is surrounded by an electrically-conductive outer material that provides a shield against passage of extraneous external electrical signals or noise.

Any current-carrying conductor, including a cable, radiates an electromagnetic field. Likewise, any conductor or cable will pick up energy from any existing electromagnetic field around it. The second solution is to route cables away from trouble. Beyond this, there are particular cable designs that minimize electromagnetic pickup and transmission. Three of the principal design techniques are shielding, coaxial geometry, and twisted-pair geometry.

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Tuesday, April 21, 2009

Hydro Power

Hydro Power As An Energy Alternative

By Yudha Urawa

The world faces an energy crisis. A variety of solutions have been proposed for this: an expansion of nuclear power, drilling for oil in previously protected areas such as Alaska and Antarctica, increased research into energy-saving technology and a large-scale switch to renewable energy. The latter can be split into a variety of areas, the main ones being solar power, wind power and hydro power. The most common large scale hydro power systems are incorporated into dams and reservoirs. The potential energy of the stored water is transformed into usable power. Tidal barrage systems operate across the mouths of river estuaries, where the ebb and flow of the tide can be exploited to provide energy.

Simple Hydro Power model: (Head(ft) x Flow in Cubic Feet per Second) / 11.8 = KW output. or (Head(ft) x Flow in Cubic Feet per Second) / 8.8 = HP output. There is also an instream flow requirement that sets a minimum flow for continued health of the stream critters between the intake and power house. The variable jet control combined with the extra nozzle and pelton turbine gives a better range of efficiencies for our variable flow regime. Just add water!

The benefits of such hydro power systems are clear, once constructed, the energy produced is cheap and clean when compared to other power sources, the amount of pollution produced is minimal. Hydro power other benefits, among other as long as the water is there in sufficient quantity, hydro stations can generate power 24/7, microhydro systems produce no pollutants, large dams can be useful for flood control. Hydro power, but also has some shortages, among other , the reservoirs created by large dams and mega-dams destroy local habitats, large hydroelectric dams are expensive to build, large hydroelectric dams can only be used in a limited number of places those with large water supplies, damming rivers and streams changes the natural waterways, diverting water from areas that depend on it.

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Sunday, April 19, 2009

Solar Hot Water

Solar Hot Water

By Yudha Urawa


Solar Hot Water is the H2O heated using energy from sun that is Solar Energy. The solar heating systems is generally used to heat water for home, business and industrial usage. Solar hot water systems are storage systems that can provide up to 90% of your hot water for free. Solar heating systems is composed of solar thermal collectors and a fluid system to move the heat from the collector. The system have tank for heat storage. To heat water using sun's energy, a collector is secured on wall facing the sun. The most common solar water heating systems are active systems. It is basically used in residential solar water heating applications. Solar hot water heating systems are a great way to effectively conserve energy and reduce your energy bill.

Solar water heaters can be used in any climate. The fuel used to run a solar heater is sunshine. A solar water heater can reduce your water heating bill by fifty to eighty percent. Aside from reducing your energy bill right now, a solar heating system will protect you from future energy price increases. Using solar power to heat your water will significantly reduce your carbon footprint. Solar heaters can be installed in combination with backup systems.

There are two thoughts when it comes to a solar hot water heater, depending on the location your hoping to put the hot water, solar panels might not be required. Nevertheless, to provide hot water through your entire home a solar hot water heater must be connected to an adequate number of solar panels to charge your batteries once the hot water usage is completed.

Typically in a solar hot water heater the heat will transfer the water into pipes or other types of storage systems then it is exposed it to sunlight, heating the water contained in the pipes. In a solar hot water heater the storage tank needs to be very well insulated to keep the water's heat level elevated.

A solar heating system is composed of solar thermal collectors that move the heat to its point of usage and a reservoir or tank for heat storage. The system may be used to heat domestic hot water, swimming pool water or for space heating. The system pumps cold water to a collector to be heated. The heated water flows back to a collection tank.

Essentially, solar water heating systems consist of a water storage tank and its solar collectors. The solar collectors are used to collect solar energy (which heats water), and the tanks store the heated water. 75% of the energy consumption of the average home is for hot water and heating. The most economical and effective way of using solar power is through the use of solar heating, and solar hot water heaters. Many passive systems depend on the water temperature to move water to the storage tank as cold water sinks to the bottom and hot water ends up rising to the top.

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Thursday, April 16, 2009

solar battery

Solar Battery Charger

By Yudha Urawa

For two centuries the world has relied upon fossil fuel, mostly coal and oil, for almost every form of power. It lights our homes, powers our appliances and drives our cars. Unfortunately fossil fuels rely on combustion to release their power. Most houses will use less power during the day, and much less in the summer which is the peak power producing time for solar panels. To be effective this power must be stored somehow.

When you purchase a solar home installation with battery backup, one of the components you will need to select is a solar Charge Controller. Solar panels produce direct current, meaning the electricity from the panels flows in only one direction. The quality of the charge controller will directly affect the life of the backup batteries. When the battery is depleted of charge, the lead plates inside the battery are corroded.

The way a Solar Charger works is simple. The solar panel of the battery charger collects energy from the sun and converts this into electricity. One popular way of storing solar power is by connecting the solar panels to the existing electrical grid, effectively turning it into a massive solar battery. Any power outages can still affect these solar panel set-ups, but no rechargeable batteries have to be used.

Selecting a good quality charge controller will maximize the life of these batteries in a solar home system. Solar battery chargers are not a matter of fashion, they are gaining popularity with very good reasons. Most solar chargers are equipped with plug kits which match to variety of electric devices. There is no usage cost when using a solar battery charger as opposed to the utility electricity charger.

Now, there are many different types of solar battery chargers, as well as different types of batteries you might want to charge. As all solar battery chargers use some type of solar panel, the amount of power they generate generally depends on the size of the panels. Solar panels are made up of individual solar cells. The more solar cells there are on a solar panel, the more electricity they create. You might ask why one uses a solar charger to charge a battery, instead of just directly running one's equipment from a solar panel.

There are a variety of solar battery chargers and other portable solar power devices available on the market today. Typical batteries, especially lithium ion, have high capacity for storing power, but deliver a weak output and recharge slowly.

In comes the solar battery charger that allow you more independence when it comes to charging your batteries. Solar battery chargers are great for when you are camping or on a road trip. A solar battery charger can be used for more then cell phones, though. Give a solar battery charger a try and see what a difference it makes.

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