Browsing Tag Hot Water

The heat of the Earth makes up what is known as geothermal energy. When dust and gasses from Earth mixed together 4 billion years ago, geothermal energy resulted.

Inside the Earth at its core, some 4, 000 miles deep, the temperature is estimated at about 9,000 degrees Fahrenheit. Geothermal energy has been used throughout history for bathing, relaxing, cooking and heating. It was thought by some to have healing effects and was used to treat eye and skin diseases. The first geothermal generator that produced energy was built in Lardarello, Italy in 1904. The United States followed with their first attempt at geothermal power in 1912 at The Geysers in California. Today it is produced in twenty-one countries around the world.

Geothermal energy is located deep in the ground. The heat at the core of the Earth has an outward flow. As it moves, it is transferred to surrounding rock layers called the mantle. As temperatures and pressure increase, the rock melts and becomes magma. The magma moves toward the surface of the earth carrying the heat with it. If the magma reaches the Earth’s surface, it becomes lava. However, most of it stays below the Earth’s crust and heats rocks and water that surround it. These temperatures can reach up to 700 degrees Fahrenheit. When the water travels to the Earth’s surface, it becomes hot springs or geysers. Mostly it stays trapped in fractured, porous rocks called geothermal reservoirs. This heat near the Earth’s surface becomes a form of energy.

Hot water or steam from the reservoir exerts a force that can spin a turbine connected to a generator and produces electricity. The cooled water is then returned to the reservoir in order for it to reheat. Much exploration and testing needs to be done to determine where the geothermal underground waters are. When ideal spots are located, drilling is done to create production wells that bring the water to the Earth’s surface for power generation in geothermal power plants.

Although the costs to construct geothermal plants and geothermal wells are high, the cost of producing electricity is lower over time. The fuel is reliable, stable and does not need to be transported. The white smoke you will see over geothermal power plants is not smoke but rather steam. During the process of operations it may, however, bring some hazardous gases from underground.

The United States stands as the biggest producer of geothermal energy. Unfortunately, interest in it is low and it only accounts for about 1% of this country’s energy supply. Through research and experience new methods and technologies for accessing geothermal energy will improve. Tapping into the heat under the Earth’s surface can produce much more of the nations energy. We are at a point where renewable energy sources must make their way to the forefront of the energy picture. Not only are fossil fuels being depleted, but also they are ruining our air quality. In time, geothermal energy may become an appealing alternative. Competitive pricing and minimal environmental impact could produce a hot future for this renewable energy source.

With people looking for more and more ways to find renewable energy sources, many don’t realize they are standing on top of one of the greatest energy resources on the planet. The Earth’s core is at an unbearable temperature, hotter than anyone could possibly even fathom. This heat builds up so much pressure in the Earth’s core that it has to be released in some way. These releases are known as geothermal energy. The hot water and steam from the Earth can be used in a number of ways to create energy. This is a renewable energy because the heat in the Earth’s core is constant and the water replenishes from rainfall.

There are different ways to use geothermal energy that include direct and indirect uses.

- The heat from the Earth could be used as a direct source for heating systems. The hot water close to the Earth’s system is directly pumped into heating systems.

- Generators in power plants require steam at very high temperatures to work. Geothermal power plants are built near reservoirs to tap the natural resource. The power plants use steam or water close to the surface to operate its generator.

- Geothermal heat pumps use water near the Earth’s surface to control building temperatures. This renewable energy source can regulate entire towns and villages.

Using geothermal energy isn’t a new concept. History has shown that people in ancient times have used hot springs for cooking, bathing and heating purposes. Even today many believe that natural hot springs have healing powers. There are many people who still bathe in hot springs. In Reykjavik, Iceland 95 percent of the buildings are heated with geothermal district heating systems. Hot water near the Earth’s surface is pumped directly into the buildings.

The Unites States is one of the leaders in geothermal power. The country has more geothermal power plants than any other, however, it only accounts for one percent of the electricity produced in the U.S. California (33), Nevada (15), Hawaii (1) and Utah (1) are the only states with geothermal power plants.

There are opponents of geothermal energy. While there are uses for it, criticisms have been raised. Some believe this is not a long term solution nor could it be used in huge environments. There are others who think creating geothermal power plants would cost too much money and drain money from researching other valuable energy resources. People are also concerned that if magma is tapped, it could bring up dangerous and harmful particles.

One thing is certain, more research is needed to make an educated conclusion about geothermal energy. There is too much guessing going on and not enough doing. There are results of natural geothermal reactions. These happen everywhere and come in the form of volcanoes, hot springs and geysers. With geothermal reactions occurring naturally, humans should find a safe way to tap into it.

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The coming energy crisis caused by a peak in global oil and natural gas production will profoundly affect the lives of all North Americans. As the price of these vital fuels rises, homeowners will scramble to cut their fuel bills. Two options for meeting the upcoming challenge are dramatic improvements in home energy efficiency and efforts to tap into clean, affordable, renewable energy resources to heat and cool homes, to provide hot water and electricity, and even… More >>

The Homeowner’s Guide to Renewable Energy: Achieving Energy Independence through Solar, Wind, Biomass and Hydropower

There is a lot of energy that we can harness if we only seek to research and develop the technologies needed to do so. We can get away from the fossil fuels and the old electrical grids by turning to alternatives to these energy sources.

One of these alternative energy resources is wind power. Wind turbines continue to be developed that are progressively more energy efficient and less costly. “Wind farms” have been springing up in many nations, and they have even become more strategically placed over time so that they are not jeopardizing birds as former wind turbines did.

Another alternative energy resource is the one that is most well known: solar energy. This involves the manufacturing of solar cells which gather and focus the energy given off directly by the sun, and translate it into electricity or, in some cases, hot water. As with wind energy, solar energy creates absolutely zero pollution.

Ocean wave energy is seen by governments and investors as having enormous energy generating potential. A generator in France has been in operation for many years now and is considered to be a great success, and the Irish and Scots are running experimental facilities.

Hydroelectric power has been with us for a while and where it is set up, it is a powerful generator of electricity and cleaner than a grid. However, there are certain limitations to the availability of the right places to set up a large dam. Many run-of-the-river, or small and localized, hydroelectric generators have been set up in recent times due to this limitation.

Geothermal energy is extremely abundant, since it lies directly beneath our feet, just a few miles below the earth’s surface. This energy is produced by the heating of water through the actions of earth’s fantastically hot molten core. The water turns to steam, which can be harnessed and used to drive turbine engines which in turn generate electricity. Great amounts of research and development should be put into geothermal energy tapping.

Waste gas energies, which are essentially methane, reverse the usual energy-pollution relationship by creating energy from waste that lies in the dumps and from some air pollutants. This gas is used in fuel cells and can be used in standard gasoline generators.

Ethanol is a gasoline substitute and is created from such things as wheat, sugarcane, grapes, strawberries, corn, and even wood chips and wood cellulose. There is controversy over this fuel with regards to its ever becoming truly economical or practical except in very localized areas, but technologies for its extraction and admixturing are continuously being refined.

Biodiesel energy is created out of the oils contained in plants. So far, the commercial stores of biodiesel have been created using soybean, rapeseed, and sunflower oils. At the time of this writing, biodiesel is typically produced by entrepreneurial minded individuals or those who want to experiment with alternative energy, but commercial interest from companies is on the rise. It burns much cleaner than oil-based diesel.

Atomic energy is created in atomic energy plants using the process of nuclear fission. This energy is extremely efficient and can generate huge amounts of power. There is concern from some people about what to do with the relatively small amount of waste product atomic energy gives off, since it is radioactive and takes hundreds of years to decay into harmlessness.

Photovoltaic cells-those black squares an array of which comprises a solar panel-are getting more efficient, and gradually less expensive, all the time, thanks to ever-better designs which all them to focus the gathered sunlight on a more and more concentrated point. The size of the cells is decreasing as their efficiency rises, meaning that each cell becomes cheaper to produce and at once more productive. As far as the aforementioned cost, the price of producing solar-generated energy per watt hour has come down to $4.00 at the time of this writing. Just 17 years ago, it was nearly double that cost.

Solar powered electricity generation is certainly good for the environment, as this alternative form of producing energy gives off absolutely zero emissions into the atmosphere and is merely utilizing one of the most naturally occurring of all things as its driver. Solar collection cells are becoming slowly but surely ever more practical for placing upon the rooftops of people’s homes, and they are not a difficult system to use for heating one’s home, creating hot water, or producing electricity. In the case of using the photovoltaic cells for hot water generation, the system works by having the water encased in the cells, where it is heated and then sent through your pipes.

Photovoltaic cells are becoming increasingly better at collecting sufficient radiation from the sun even on overcast or stormy days. One company in particular, Uni-Solar, has developed solar collection arrays for the home that work well on inclement days, by way of a technologically more advanced system that stores more energy at one time during sunlit days than previous or other arrays.

There is actually another solar power system available for use called the PV System. The PV System is connected to the nearest electrical grid; whenever there is an excess of solar energy being collected at a particular home, it is transferred to the grid for shared use and as a means of lowering the grid’s dependence on the hydroelectrically-driven electricity production. Being connected to the PV System can keep your costs down as compared to full-fledged solar energy, while at once reducing pollution and taking pressure off the grid system. Some areas are designing centralized solar collection arrays for small towns or suburban communities.

Some big-name corporations have made it clear that they are also getting into the act of using solar power (a further indication that solar generated energy is becoming an economically viable alternative energy source). Google is putting in a 1.6 megawatt solar power generation plant on the roof of its corporate headquarters, while Wal Mart wants to put in an enormous 100 megawatt system of its own.

Nations such as Japan, Germany, the United States, and Switzerland have been furthering the cause of solar energy production by providing government subsidies or by giving tax breaks to companies and individuals who agree to utilize solar power for generating their heat or electrical power. As technology advances and a greater storage of solar collection materials is made available, more and more private investors will see the value of investing in this “green” technology and further its implementation much more.

One of the most natural forms of energy that you have in existence today is geothermal energy. This energy comes from the heat present within the earth and it can be employed in a variety of different forms. The origins and the application of geothermal energy are explored in this article.

Geothermal energy is the Earth’s heat. It is the end result of the fusion of dust and gas which happened about four billion years ago.

Deep inside the earth’s core and approximately about 4,000 miles deep, the temperature is about 9,000 degrees Fahrenheit. Geothermal energy has been used for everything from bathing to relaxation and cooking as well as heating. The first geothermal generator was created in Italy at the beginning of the 20th century. In 1912 the United States followed with their attempt at creating geothermal power with The Geysers in California. The energy is now produced in over 21 countries of the world.

You can find geothermal energy deep in the ground. The heat at the core of the Earth flows outwards. When it flows the heat is transferred to surrounding rock layers known as the mantle. When temperatures and pressures increase, the rock then melts and becomes magma. Magma then moves to the surface of the earth and takes along the heat with it. If magma gets to the surface of the earth it becomes lava otherwise it stays below the earths crust and heats up the rocks and surrounding water. These temperatures can get as high as 700 degrees Fahrenheit. When water travels to the surface it becomes hot springs or geysers. Most of this water however gets trapped in fractured and porous rocks which are known as geothermal reservoirs. The heat also becomes a form of energy.

Hot water or steam that comes from a reservoir can easily exert a force that spins a turbine connected to the generator in order to produce electricity. Cooled water is then returned to the reservoir in order to reheat. In order to determine other locations of geothermal underground waters further research, exploration and testing are required. When the necessary spots have been located, drilling can then be carried out in order to create the production wells that supply water to the surface of the earth in order to generate power in geothermal plants.

The costs of constructing geothermal plants and geothermal wells are quite high, the costs of producing electricity tends to be much less over time. The fuel is reliable and stable and has no need for transportation. White smoke that is seen over geothermal power plants isn’t smoke but steam. During operations however, hazardous gases may be brought up from the underground.

The United States is the biggest global producer of geothermal energy. Unfortunately the global interest in geothermal energy is low and only accounts for a small portion of the global energy supply. Research and experience will produce new means and technologies that will aid you in accessing geothermal energy. Renewable energy sources must become the major source of energy in the years to come. Fossil fuels are constantly being depleted and reducing the quality of air that we enjoy. Over time geothermal energy might become much more attractive. Reduction in the costs of implementation of this energy source might in time lead to a better future for this source of renewable energy.