Electrical energy - How Is Electricity Produced?

Man's many discovery was fire, a requisite form of energy, and then later electrical energy. This power has been instrumental in developing civilizations. But, how is electricity produced? It is produced straight through the use of fuel sources such as water, nuclear fission, fossil fuels and even the wind. In this narrative we will look at some of the separate methods used in the production of electrical energy.

Quite simply, most electricity is produced by using huge turbines. These turbines produce power by being moved and the ways that the turbines are moved include these power sources:

Nuclear Reactor

Fossil Fuels:

When the huge blades of turbines are moved by large volumes of steam, electricity is produced. This steam is produced by boiling water using large furnaces. The heat is produced by burning fossil fuels such as petroleum, coal and natural gas. Unfortunately, carbon dioxide is also produced as a side product, and this is released into the air polluting our atmosphere. This main down side is the suspect that exploring alternative green sources of power production is imperative for long-term supplies and global preservation.

Water:

In this case the huge turbine blades are moved by the flow of large bodies of water. These large bodies of water are obtained by construction dams which do two things: include volumes of water and produce electrical energy. This way of producing power is safe when it comes to air pollution but the down side with this formula is that it negatively impacts on the ecosystem under water.

Power derived straight through water produces 90% of power generated using renewable sources.

Wind:

Windmills or wind turbines produce electricity by using the power of the wind and converting it. Wind power turns the blades of windmills to produce mechanical power which is then converted into electrical energy. This formula of harnessing power has been used for centuries, but only recently for the production of electrical energy.

Nuclear Reaction:

Nuclear power is released by a chain reaction where the element Uranium is bombarded by neutrons causing it to split. When these splits occur, more neutrons are released, and these neutrons cause even more splits. This consequent of this chain reaction is that it generates a lot of heat power which is then used to boil large quantities of water to produce steam. This steam is used to drive the turbines which produce electricity. Most of these reactors are relatively safe but have a negative impact of the environment straight through solid waste and carbon emissions.

Bio-waste:

With advancing technology bio-waste is also being used to originate electrical energy. Bio-gas is more commonly used in places like India. For example, in Bihar in India a new technology has been developed to use human waste as a fuel to produce power. without fail a renewable source of energy!

These are the commonly used methods currently used in producing electrical power with various down sides from microscopic supplies to adversely affecting the environment. So, how is electricity produced using renewable and environmentally amiable sources? There are alternative methods ready precisely within the reach of the average family to not only save power but save on power costs in general.

Electrical energy - How Is Electricity Produced?

Wind Power - How is Electricity Produced From Wind?

Wind is produced by regions of different temperatures and/or pressures in our atmosphere. On Earth, practically all wind is created by incoming radiation from the sun; this happens when the sun heats a land mass and the heat from the land is absorbed by the surrounding air. When the air reaches a definite climatic characteristic (around mid-morning) it normally begins to rise speedily upwards.
 
This speedily results in a low-pressure area at ground level and a higher-pressure area above the land. Wind is then created. Air simply moves from high-pressure zones to low-pressure zones, trying to equalize the air pressure. This air movement creates, you guessed it: wind.
 
Areas of the Earth closer to the sun, such as the equator, become warm quicker than areas supplementary away, such as North America. As air moves over warm areas and rises, cooler air from surrounding areas rushes in to fill the space left by the rising air and again wind is created.This is the general air circulation pattern colse to the globe.
 
Due to elevation, topography, outside roughness and location, some areas perceive more wind than others. For instance, areas close to large bodies of water, lakes or the oceans especially, have good winds, and thus wind generator potential.
 
Creating Electricity from Wind power
 
The air surrounding Earth is made up of many gases, and the wind is essentially spirited air molecules. If you slow down those molecules, as in the case of the wind remarkable the blades of a wind generator, they need to "release" their kinetic energy. In this way, wind turbines capture the kinetic power and in turn convert it into electricity.
 
Wind generators do this with three basic parts: blades, a shaft and a generator. As wind moves over the turbine blades, it creates high-pressure air below the turbine blades and low-pressure air above them, causing "lift", just like an airplane. Lift makes the blades rotate since each blade is slightly angled.
 
The blades then turn a shaft that moves magnets in the generator. This movement of the magnets creates electricity. This electricity can be used on-site by a home, business, farm, and it can be stored in batteries.
 
How to think the amount of Electricity Generated from Wind power
 
It is clear so far that kinetic power from wind is transformed into electricity by means of a wind turbine and an electric generator. The more kinetic power (wind speed) the more electricity produced.
 
Wind speed is often measured in miles per hour or kilometers per hour. The amount of power ready in the wind is proportional to the wind speed multiplied by itself 3 times. E.g. If the wind speed doubles, the amount of power in the wind goes up by 2 x 2 x 2 = 8 times.
 
Typically, wind speeds greater than 7 mph are needed before a wind power principles can begin to originate electricity. The speed at which your wind generator begins to originate power is called the "cut-in" speed. The "cut-out" speed, normally colse to 60 mph, is where the turbine spin stops to safe itself from damage.
 
The literal, amount of power that can be taken from the wind is involved and depends on such factors as the variability and distribution of wind speed, height of the rotor, diameter of the area swept by the rotor, and density of the air.
 
To determine how much electricity can be produced by a turbine from the wind, you need to know the wind speed over time and the amount of electricity a turbine generates at different wind speeds. Wind speed is often expressed as the amount of hours per year the wind blows at different speeds.
 
Hills, ridges and valleys can block the wind or originate undesirable turbulence for a wind generator system. In this case, mounting a wind power principles on a hill and on a tower will increase the amount of wind power available. As a rule of thumb, you want a location that is 15 feet above every obstruction for a radius of 300 yards.
 
Due to the ground's friction, wind speed increases as you move higher. This is a good thing to know when you are installing a wind generator. For most open spaces, wind speed increases 12% each time the height is doubled. A small increase in wind speed leads to a large increase in power output as the power ready in the wind is equal to the wind speed multiplied by itself times 3 remember.

Nuclear Power

Wind Power - How is Electricity Produced From Wind?

Energy & Electricity in Science : How Does Nuclear Energy Work?

Energy & Electricity in Science : How Does Nuclear Energy Work? Tube. Duration : 3.83 Mins.

Nuclear energy is produced from either uranium or plutonium through a process called fission. Find out how nuclear reactors are used to slow down neutrons withinformation from a science teacher in this free video on nuclear energy and science lessons. Expert: Steve Jones Contact: www.marlixint.com Bio: Steve Jones is an experienced mathematics and science teacher. Filmmaker: Paul Volniansky

Keywords: physical science, science, energy, electricity, solar energy, nuclear energy, earth science, physics, chemistry, light

Why the Cost of Electricity is Astronomically High in Some Countries

The prices of most things tend to be comparable all over the world. There are, of course, the small differences occasioned by the differences in the factors of production in the middle of the distinct countries. But the allinclusive figures tend to be comparable - so that the price of a pound of sugar in the United States could be twice as high as the price of the same pound of sugar in some Asian country. The unlikeness here is titanic (100%), but the two prices are still comparable. As it turns out, though, there are some products where you can have what can only be termed as titanic price differences. Electricity happens to be one such goods (where what we are talking about is the mains electricity, drawn from the national grid). Here, we have a situation where a kilowatt-hour of electricity can cost ten times as much in one country, when compared to what it costs in someone else country. This is a 1,000% price unlikeness - and titanic is the only term that can competently chronicle it.

All that brings us to the demand as to why the cost of electricity can be astronomically high in some countries, compared to what it costs in others.
And as it turns out, when electricity costs are astronomically high, a amount of factors tend to be at play.

Nuclear Reactor

The countries that have high costs of electricity tend to be nations that rely on inefficient methods for producing electricity. Some methods for producing electricity are more effective (at least from a costing point of view) than others. You can't even start comparing the cost of producing electricity using diesel-powered generators to the cost of producing electricity from a nuclear reactor. True, it is costly to set up the nuclear reactor, but one it is up and running, the cost of production tends to be practically negligible. Hydro-electric power production is even cheaper to set up, and cheaper to keep running, in case,granted there is a good flow of water. The tragedy here is that there are some countries that are in a situation where they have to depend on diesel powered generators for their national grids. Consequently, it comes as no surprise when the cost of electricity in such countries turns out to be ten times as high as the cost of electricity in the countries thoroughly using nuclear or hydro-electric systems.

Often, deeper political reasons are to be found, behind the astronomically high costs of electricity in some countries. We are finding at the situations where high level corruption leads to embezzlement of the funds that would have gone to the amelioration of permissible electricity production systems. The end ensue is a situation where a nation has to depend on a power production law that is cheaper to set up but precious to keep running - like the diesel-powered system.

Sometimes, there are vested economic interests behind the high cost of electricity. It could be a situation where a country is able to yield power for its national grid cheaply, but where some 'big shots' insist on holding it expensive; with the extra money going to line their pockets.

Sometimes, we have genuine national poverty prominent to the high costs of electricity. This is the situation in some countries that are simply too poor to set up their own power generating capacities. So they are forced to import power, and they end up being fleeced in the process - by the countries that export electricity to them.

Why the Cost of Electricity is Astronomically High in Some Countries