This video demonstrates how to construct a model windmill and then calculate its power output. Includes discussion of Energy, Work, Power, Joules and Watts.
Thursday, December 30, 2010
This video explains electricity as the flow of atomic particles called electrons. Animations demonstrate electron flow. Batteries are described as chemical devices designed to create electron flow. Terms covered in video include Volts, current and Amperes.
Tuesday, December 28, 2010
Monday, December 27, 2010
One thing that you can do is turn off your lights. This is common knowledge but many still forget to do this. Get into the habit of turning things off that you don't need not leaving them running.
Not only turn your lights off, but be sure to change the lights that you use at home. There are low wattage bulbs that you can get today that are just as bright as the higher wattage bulbs. Using these saves quite a bit of energy and doesn't really require you to be in the dark.
Get new appliances. If you have a few in your home that are older, they are probably very inefficient. When you get more efficient appliances they will use less energy and save you money in the long run.
Insulate your home better. Heating and cooling are some of the the most expensive home utility expenses. When you insulate your home, it costs less money to cool down your home during the summer taking less energy.
Keep your air conditioning up a few degrees warmer during the summer. While this might not be as comfortable, you can save more electricity.
Unplug your major electrical devices at home. Many aren't aware that things like your large screen television still draw power even while it's plugged in. All day long you are wasting wattage from these types of appliances even when off. Get a wattage meter and test out your electrical devices to see if any are doing this to you. Unplug those that are using way too much power.
Article Source: http://EzineArticles.com/?expert=Andris_Lee
Sunday, December 26, 2010
There are three important basics that you must realize before you make the trip down windy lane. First, wind power electricity can't always count on the wind because it is unpredictable and uncontrollable. Wind just doesn't always blow. Sure on a windy day when you really want your hair to look good you can count on it gusting heavily and it seems like it is always blowing but every sailor knows that wind is intermittent and varies from moment to moment. This means it makes capturing wind even more challenging than capturing the suns rays and you have to make sure that you are ready to spend significant cash for storage and transmission from the turbines.
Second, have you really thought about how much space you have to put up your windmill or wind farm? Most locations can't really accommodate a wind farm much less the type of unit you need to really generate much wind power electricity. Do you live in the country, city, or suburbs? Some areas and communities have restrictions on what size turbine you might be able to erect to produce electricity not to mention that the neighbor behind you might be a little miffed staring at a giant turbine every day. Your location is critical to determining if you have viable potential for a system based on area, location and the amount of wind you have coming across your property. If you have thousands of tall trees all around your location that blocks most of the wind coming across your land you might want to reconsider wind power electricity all together.
Finally, do you really understand the true cost of wind power electricity? Most people think about the capital costs of the unit and the land costs as well as some other incidentals but you have to look at the repair and replacement costs of your equipment, the useful life of turbines, depreciation costs, capacity, and the expected return on investment. Saying you get energy from the free breeze is pretty cool but how much are you paying for that wind power electricity? Additionally, you should know that while some large commercial wind farms are becoming profitable that the home turbine market is really still in its infancy and is very unregulated leaving you open to poor quality products and low performing units. Do the detailed math before you start on your journey to capturing wind energy.
Make no mistake, while wind power electricity can be good idea for people who are in the right location with the right situation to capture wind resources, it can also be a really dicey proposition. This is a very immature market and truly knowledgeable engineers, manufacturers and installers are very hard to come by for the home market. Your best bet is to do extensive research before you buy so you don't get taken by some blow hard who just wants to sell you something because of your greening desire to generate wind power electricity. Besides, you don't want to end up like that cow that was lifted into the air by the tornado and end up an udder disaster.
Bill Guandolo is an avid researcher of LEED, solar panels and free energy sources that people need and can use every day. He loves to share his online research findings and discoveries with others through his blog http://mybuysolarpanel.org/. He has discovered things that very few people know about alternative energy and more importantly about ways to eliminate your dependence on your local power provider and offers information regarding wind power electricity.
Article Source: http://EzineArticles.com/?expert=Bill_Guandolo
Saturday, December 25, 2010
If you are looking to switch to green electricity then you have two options. Your first option is to generate the electricity yourself using renewable energy technologies. The second is to switch to a green tariff with one of the energy providers. Let's take a closer look at these two possibilities.
Generating your own renewable energy is a viable option these days. The only set back is the relatively high initial investment that you would need. There are a number of options including solar, wind, combined heat and power or hydro. Probably the most practical and suitable for most people is the solar option.
When we talk about solar we mean solar photovoltaic panels, these turn the light form the sun into electricity. They are almost entirely maintenance free and can be installed in a day. You do however have to have a South facing roof for them to work effectively. The more direct sun that they get the more electricity they will produce.
A typical solar installation should produce more than half of all your electrical power requirements. You can get larger installations and sell any excess energy back to the grid. The down side to solar is that they only work during the day. This means at night you will still have to buy in your power from the grid.
There are ways to store the excess power you generate but for most people the systems are not yet domestically practical. The appliances we use are generally high demand and the batteries would not last very long.
The second option is to switch to a green electricity tariff from either your current energy company or from a competitor. Most companies these days have a green or eco tariff. However they are not all the same. Some providers top up their green with brown electricity. Brown electricity is the same type that you are already using.
To make a difference your best option is to switch to a provider who only produces renewable energy. Many of the independents produce their own renewable power and sell it direct to the consumer.
The cost of switching to a green tariff varies depending on the type of tariff and the company you choose. Some companies offer a rate equal to that you are currently already paying so that it will not cost you any more to switch. Others are slightly more expensive but the costs are coming down as more supply is being produced to meet demand.
Find out more about your green electricity options or find out how you can get free solar panels for your home with a government grant.
Article Source: http://EzineArticles.com/?expert=Julia_Greenburg
Friday, December 24, 2010
The Beginning of Electricity in America
Benjamin Franklin began experimenting with electricity in America and documented the experiments. He was able to finance his extensive work by selling off his belongings. He is known for flying a kite in a storm that had a wet string and a key tied to the end of it. When he observed sparks leaping from the key to his hand he understood that lightning was a natural form of electricity.
Alessandro Volta of Italy invented the electric cell in 1800, making it easier for scientists to study electricity and its various applications. When the electric cells are connected together a battery is created.
Alexander Graham Bell is known to have invented the telephone. Bell's worked as a teacher for deaf students professionally which explains his fascination with different ways to transmit sounds. During his experiments with sound transmission he began to use electricity, which eventually led to his success with the telephone.
Thomas Doolittle, a mill worker from Connecticut created the method that was used to create the first hand drawn copper wire that strong enough to use as a telegraph wire. A man by the name of Michael Faraday discovered that electricity was created when a magnet was passed through ordinary copper wire. This is the application that is used in America's power plant to generate electricity that is delivered to customers across the country. Both the electric generator and are built on this principle. A generator takes mechanical energy and converts it to electricity. On the other hand, motors convert electrical energy to mechanical energy.
While Thomas Edison experimented with electricity he was able to invent the electrical light bulb in addition to many other gadgets. His biggest challenge when creating the light bulb was to find the right material to use for the filament. He settled on carbon soaked cotton thread. The carbon was used to prevent the cotton thread from burning. The thread glowed as the electricity traveled through it. As soon as the popularity of the light bulb caught on he turned his attention to the development of power plants that would be run the light bulbs. The first power plant that he built began operating in 1882 and served 85 New York city customers.
A major turning point occurred in 1895. The power plant that was built by Edison was only capable of transporting power a short distance since it used direct current of DC. The power was transmitted approximately just one square mile surrounding the power plant. With the development of alternating current or AC in 1895 the plant was able to transport power over 200 miles from the newly built power plant in Niagara Falls.
Electricity was rather slow to catch on in America. Many people were excited by the new inventions, but some were afraid of the electrical current and hesitated to have it installed in their houses. Some people were unable to afford the price of the service. Electricity was blamed for causing the end of simple living. Many people felt that electric lights were less romantic than the gas light they were used to.
Many expos and fairs often featured exhibits that displayed the recent inventions that used electricity as their power source. The 1893 Columbian Exposition that was held in Chicago displayed 5,000 arc lights and 90,000 incandescent lamps. People that visited the expo had the opportunity to view or ride the different electrified exhibits which included three cranes, several water fountains, a moving sidewalk, elevators and a street car system that was created by General Electric.
The Pan-American Exposition that was held in Buffalo, NY in 1901 used electricity as the theme. An electric tower that was 400 feet in height, displaying 40,000 lights was featured in addition to the Electricity Building which was home to a huge exhibit of electrical appliances.
Power became accessible by more people as small electrical companies started to spring up around the country. A number of the smaller companies started to merge together and form large conglomerates, the largest ones being General Electric and Westinghouse. These two companies started building power plants that were equipped with generators that used fossil fuel combustion and steam to produce electricity. Other plants were being built that used kinetic power to generate power like water or wind. Once nuclear power was developed, the power that was released as nuclear reactions occurred was used to create electricity.
The demand for electricity grew by 12% each year for the first thirty years of the twentieth century. In order to keep up with today's demand for electricity, renewable resources are being implemented to supply the much needed power. Many people are using solar power, hydropower and wind power are being put to use in order to meet the demands of consumers and to protect the environment.
Jerry D. - Owner of Choose Energy (http://www.ChooseEnergy.com) and online resource for Texas electric customers - Your source for lower Texas electricity prices. You may use this article as long as this box remains unchanged.
Article Source: http://EzineArticles.com/?expert=Jerry_Dyess
Wednesday, December 15, 2010
Tuesday, December 14, 2010
Wednesday, December 8, 2010
See how a coal fueled power plant produces electricity in this 10 minute tutorial video produced by EDPvideo.com for FirstEnergy. This is a fully 3D animated video.
Monday, December 6, 2010
Electricity is one of the most important aspects to a home. Without proper electricity, a number of amenities would be affected. We would not be able to use lights, appliances, computers, air conditioners, some cable and phone systems, and even our heaters or hot water heaters. When you are considering a new home purchase, it is valuable to check the home electrical systems to ensure your needs are met.
Here are some helpful tips to consider when checking the electrical systems of a new home...
1. Know what to expect. An electrical system includes incoming power lines, the electric meter, the service panel, subpanels, household wiring, electrical boxes, the receptacles or outlets, switches, appliances, lights, and extra equipment used for home entertainment or communication. These should all be included in a new home.
2. Ask for the age of the electrical system. There have been a number of upgrades through the years. It is important to know how old the electrical system is so that you can ensure it is up to code for the house you are buying. Older systems might need to be replaced to handle your electrical needs and this could become quite costly.
3. Check with the Electric Company or previous owners for an estimate on their electric bill. Although you might use more or less electric then the current occupants, you can get a general idea of what to expect.
4. Consider how you will use each room. Make sure there are proper outlets and switches to fit your needs. You do not want to set up your home office and realize you have no phone or internet connection to access. And, if you are building a new construction home, it is a lot cheaper to make these adjustments before the house is complete.
5. Check and existing light switches and outlets to make sure they work properly. A common problem is a switch that does nothing or an electrical outlet that is not functional. These are issues that should be cleared up before buying the house.
6. Make sure the electrical system is sized to handle the electricity amount that you plan to use. An average amp size is 100 or 200 but larger homes could require up to 400 amps. Having the correct size electrical unit will prevent future "blown fuses" when a larger amount of electricity is suddenly needed.
7. Insure that the electrical box is properly labeled. In the event that a circuit needs to be reset, you will want to know which breaker to switch. You do not want to be left cold and in the dark without a clue as to how to reinstate your lights and heat.
8. And, finally, BE SAFE! Electrical systems are required to pass building codes. This increases the safety of you and your family. Circuit breakers prevent fires, Ground fault circuit breakers protect from electrical shocks, and smoke alarms alert occupants of an emergency. These should all be incorporated and working correctly in your new home.
Guaranteeing the electrical system is accurate to your needs and working efficiently is an important and valuable process when purchasing a home. You do not want to be stuck paying high costs for electrical fixes or attempting the "Do it yourself" method. Be sure to use these helpful tips to make certain you are not left in the dark!
Article Source: http://EzineArticles.com/?expert=Julie_Pitts
Thursday, December 2, 2010
Latest advancement in the world of Science and Technology has provided us with many gadgets and appliances to make out work easier. Although these inventions have made our lives greatly convenience it has also made us greatly dependent on Electric energy, commonly called Electricity. As time passes, we are becoming more and more reliant on it to get our daily work done.
In today's modern times, Electric power has becomes a commodity. The monthly billing from electric company is sometimes becomes overkill. Nevertheless, we have becomes leisured with this convenience that we can't imagine living without, no matter what the price. Fortunately, we don't have to.
The basic idea of generator is to convert one forms of energy (magnetic energy in this case) into another form (electric energy in this case). Magnetic generators exploit the natural phenomena of attraction and repulsion between poles to create motion and hence energy. The exact quantity of electricity produced in a magnetic generator depends on the construction and specifications of the generator. Let's have a look:
A magnetic generator uses the fact that the opposite poles of a magnet attract each other while similar poles repel. A magnet generator uses a combination of various magnets to create energy from their motion. This energy is then channeled into electricity and thus can be used to power electric appliance. As mentioned before, the efficiency of such a device depends on the specification and design of the magnet. If anyone of the magnet fails or malfunctions, the process stops. Until that time you can continuously produce electricity.
Now, over-enthusiasts need to take a pause to consider budget issues. In order to construct a magnetic generator you have invest in buying magnets. Magnets are the biggest investment in this project as the efficiency of the generator depends greatly on the quality of magnets. Magnets can be bought from a hardware store or they can be custom made directly from a factory. But all this is one time investment, because once your generator is up and running, you can generate free energy.
Magnetic generator is also environmental friendly as it produces 100% clean and green energy like solar energy or wind energy. Secondly, it's sustainable, more efficient and does not depend on external factor like wind in a wind generator or sun light as in a solar panel. It also cuts your energy bill by a substantial amount.
Article Source: http://EzineArticles.com/?expert=Mico_Jonathan_Ellison