Browsing Tag Geothermal Energy

Anything that can be used to make heat or electricity without unsustainable fuels and which does not make a net contribution of carbon dioxide to the atmosphere. This includes wind power, waves and the tides, solar energy, geothermal energy and biomass. Nuclear power, although it is low-carbon, cannot be counted as a renewable source of energy because its fuel, uranium, is finite.
How does all of that help our future? Thank you.

Geothermal energy is often the great hope of renewable energy as it can be continuously and reliably produced 24/7. While it it has the best potential, it is very limited geographically. The best geothermal resources are in Alaska and California, and the best potential resources are west of the Rockies. How do we overcome the geographic limitations of geothermal energy?

Product Description
This book presents the physical and technical principles of promising ways of utilising renewable energies. In this context, firstly the main characteristics of the available renewable energy streams are outlined. Subsequently, the book presents the technologies of heat provision from passive and active solar systems, ambient air, shallow geothermal energy as well as energy from deep geothermal sources. In the preceding chapters the book addresses the processes of e… More >>

Renewable Energy: Technology, Economics and Environment

The news is always buzzing with information about renewable energy and how it is becoming increasing popular. What is renewable energy exactly? The actual definition of renewable energy is any form of energy that does not “run out,” and is sustainable. Solar energy is renewable energy. Wind and water energy is as well. Even the geothermal energy found deep underground is referred to as renewable energy. These forms of energy are not exhaustible and are abundant in nature. Fossil fuels, on the other hand, are not renewable and can eventually be exhausted.

The Problems with Fossil Fuels

Fossil fuels take millions of years to create. These are a form of stored energy that is created when plant and organic matter decay. It’s a very unique type of geological condition. However, when they are gone, they are gone forever. This is one of the reasons why it is so important to implement renewable energy sources. The main advantage of renewable energy is that it can really power our entire society indefinitely. The key is to integrate renewable energy sources into our lives now, while there are still fossil fuels available. Once the world becomes dependant on this type of energy, it won’t need the fossil fuels to survive.

Cleaner Energy Sources Are Available Now

Another huge advantage of renewable energy is that it is much cleaner to produce and utilize than fossil fuels. With less pollution, there will be fewer health concerns relating to the environment and lower health care costs. Many experts believe that pollution is the cause of many of the terminal illnesses today. Harmful emissions from vehicles and smoke stacks will no longer be an issue. Solar, wind, and water energy does not produce the waste or the poisons that are found throughout our world due to the use of fossil fuels.

Energy Monopolies Will Dissolve

One advantage of renewable energy that many people do not consider concerns the way the energy is distributed throughout the world. Monopolies on energy stores will be a thing of the past, as countries that once were completely dependant on foreign oil can become independent.

More Control For Homeowners

Homeowners will also have more control of their own energy bills. Wind turbines, solar panels, and other renewable energy sources will reduce their dependence on the grid. It’s quite possible that entire cities will soon have their own power generated only by using renewable energy sources.

Once renewable energy is the source for all means of travel, there will be no price gouging at the local gas pumps or unexplainable increases in crude oil . One advantage of renewable energy is that it will be used to power vehicles in the future, negating the need for gasoline.

A Few Final Thoughts

The advantage of renewable energy falls into many different facets. It’s not just one area of our life that will be improved. Over the next few decades, the world’s dependence on fossil fuels will continue to decrease, creating a much healthier planet. The next generation will ultimately benefit from renewable energy and isn’t that what’s most important?

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.

It’s certainly no secret: the cost of renewable energy production and its implementation can be extremely high. This is the very reason why tax credits are often used to enable renewable energy sources to compete with fossil fuels.

With rising oil and natural gas prices, the war in Iraq and environmental problems centering on global warming and air pollution, our nation is concerned about their energy security and environmental issues. The United States is recognizing the need and power of renewable energy and is supporting its development through federal income tax credits and incentives.

President George Bush signed the Energy Policy Act of 2005 into law on August 8, 2005. It took over four years for Congress to pass after reviewing several different versions. It extended tax credits for wind and biomass energies for two more years and included additional tax credits for solar, geothermal and ocean energy.

Solar tax credits apply to residential and business users. This tax credit would pertain to eligible equipment installed between 1/1/06 and 12/31/08. The equipment installed would include those solar systems that generate electricity, heat and cool or provide hot water to structures. It must also be operational in the first year the credit is taken and the taxpayer must be the original user. The credit is 30% with a $2,000 cap for each unit for residential taxpayers and it is 30% with a no business cap specified for corporate users. After 12/31/08 the corporate tax credit will return to 10%.

The geothermal corporate credit remains at 10% with no maximum stated. This credit does not apply to geothermal heat pumps and is limited to geothermal energy equipment that produces, uses or distributes energy derived from geothermal deposits. A personal tax credit of 10% with a $300 maximum can be taken for geothermal heat pumps.

The federal government also included production tax credits for renewable energies. These credits allow companies to invest in renewable technologies and write the investment off against other investments. This was a major push of support for renewable energy technologies. The credit was extended until December 31, 2008. The credits are 1.9 cents per kWh for wind, geothermal, closed-loop biomass and 1.0 cent per kWh for hydroelectric power, landfill gas, municipal solid waste and open-loop biomass. These pertain to the first ten years of operation

Similar to production tax credits, there were also provisions for renewable energy production incentives (REPI) for state and local governments, as well as, nonprofit electrical cooperatives. The enacted law included new qualifying energy generation facilities for solar, wind, biomass (excluding municipal solid waste combustion) landfill gas and certain types of dry steam geothermal energy. It was extended through fiscal year 2016 and also included ocean and wave energy.

These credits will be applied to any amount that remains after any other state or utility incentives have been taken. There are numerous states that do offer incentives also. Some new state incentives include a California state rebate program for photovoltaics, an Illinois state grant program for wind energy, a New Jersey state rebate program for geothermal heat pumps and a Pennsylvania property tax assessment for wind energy. These are just a few of the many state incentives that exist.

The United States government and the individual states are promoting renewable energy sources as an energy source to be encouraged. With all the incentives available, this may be one of the best times to make your air cleaner with a commitment toward this energy. With everyone’s support we can recharge renewable energy’s development.

If you’re concerned about your mother earth and the atmosphere in which you are living then it is the right time to act. It is necessary to act if we are well-determined to give a clean and idyllic planet to out future generation. It is only possible with the joint efforts of all the human beings existing on this earth.

A study estimates that mankind will face an excessive shortage of energy resources in the upcoming period of time. It is basically because the present sources of energy are limited (non-renewable) and will unable to meet the requirements of the population pressure of the future.

The limited sources of energy normally include the supply of natural gas, coal, petroleum, etc. to meet the needs of industries, various sectors and the common man. It will now take millions of years to attain the same stage where one can avail the same quantity of renewable sources which people were using to meet all kinds of needs some decades ago. In addition to this, an excessive use of the burning fuel is also promoting the threat of global warming in the entire planet.  

What can be a sensible solution to the problem when in the upcoming decades we will lose all the major but limited sources of energy after doing immense amount of damage to the atmosphere in which we and all the other species survive?

We can get a better answer to this question with the help of renewable sources of energy. It is a matter of debate since past whether the non-conventional sources of energy are proficient enough to meet the ever increasing demand of energy throughout the world.

It is a fact that most of the people including a great margin of researchers and scholars not only believe but guarantee that non conventional sources including wind, solar, tidal and geothermal energy can be more competent to the rising needs of the mankind in contrast to the traditional conventional sources of  energy. One better source of renewable energy is solar wind.

Like all the other renewable sources the best part of going for the renewable energy solar wind is that you can avail one more means by which it is possible to generate good amount of energy without polluting the atmosphere of earth. Like other renewable sources of energy you can avail all kinds of information about renewable energy solar wind with the help of internet. There are some of the good sites available on the internet which can provide necessary services on renewable energy solar wind for free! One such site is Enerlix, formerly known as Energyportal24.

Enerlix can be advantageous to you in many ways. It is counted among the superb market places for the environmental technologies. Enerlix is a site which is highly supportive to the user. With the help of navigation bar available on the site one can get in touch with all kinds of information including news, press releases, and events on all the topics including renewable energy solar wind technology. You can gain good information as well as submit your own opinion in the form of content for free. You can avail free online tools, articles, and publishing events after registering with Enerlix.  

We should be doing everything possible to develop geothermal energy technologies. This is a largely untapped area of tremendous alternative energy potential, as it simply taps the energy being naturally produced by the Earth herself. Vast amounts of power are present below the surface crust on which we move and have our being. All we need do is tap into it and harness it.

At the Earths’ core, the temperature is 60 times greater than that of water being boiled. The tremendous heat creates pressures that exert themselves only a couple of miles below us, and these pressures contain huge amounts of energy. Superheated fluids in the form of magma, which we see the power and energy of whenever there is a volcanic eruption, await our tapping. These fluids also trickle to the surface as steam and emerge from vents. We can create our own vents, and we can create out own containment chambers for the magma and convert all of this energy into electricity to light and heat our homes. In the creation of a geothermal power plant, a well would be dug where there is a good source of magma or heated fluid. Piping would be fitted down into the source, and the fluids forced to the surface to produce the needed steam. The steam would turn a turbine engine, which would generate the electricity.

There are criticisms of geothermal energy tapping which prevent its being implemented on the large scale which it should be. Critics say that study and research to find a resourceful area is too costly and takes up too much time. Then there is more great expense needed to build a geothermal power plant, and there is no promise of the plant turning a profit. Some geothermal sites, once tapped, might be found to not produce a large enough amount of steam for the power plant to be viable or reliable. And we hear from the environmentalists who worry that bringing up magma can bring up potentially harmful materials along with it.

However, the great benefits of geothermal energy would subsume these criticisms if only we would explore it more. The fact that geothermal energy is merely the energy of the Earth herself means it does not produce any pollutants. Geothermal energy is extremely efficient-the efforts needed to channel it are minimal after a site is found and a plant is set up. Geothermal plants, furthermore, do not need to be as large as electrical plants, giant dams, or atomic energy facilities-the environment would thus be less disrupted. And, needless to say, it is an alternative form of energy-using it would mean we become that much less dependent on oil and coal. Perhaps most importantly of all-we are never, ever going to run out of geothermal energy, and it is not a commodity that would continuously become more expensive in terms of real dollars as time passes, since it is ubiquitous. Geothermal energy would be, in the end, very cheap, after investigation and power plant building costs are recouped.

In many countries today, a lot is being said about harnessing renewable energy technologies – particularly in light of the rising oil prices.

Renewable energy is power which has been generated from renewable resources – in other words, it does not “run out” or eventually become depleted. It can be continuously re-created.

It’s not just the prices of oil that has people searching for clean and renewable energy sources. Global warming concerns, and problems created by international pollution, have triggered this concern as well. Governments around the world have begun to support research on improving the renewable energy technologies.

Currently, the five common renewable energy sources are biomass, hydropower, geothermal heat, wind, and solar power.

Biomass

Biomass consists of organic material which has been produced by animals and plants. Biomass energy uses stored energy from the sun. This is a result of the natural process which any plant uses to survive – photosynthesis.

Because we can always grow new crops and trees, biomass is considered a form of renewable energy. Furthermore, organic waste can be used to create biomass as well.

Some examples of commonly used biomass fuels are crops, wood, garbage, and manure. When these materials are burned, they emit heat which produces steam, that can in turn be used to create electricity. Some biomasses are converted into other usable energy forms, such as methane gas or biodiesel.

Hydropower

Hydropower is one of the oldest forms of renewable energy. It was used in ancient times to grind grain. Coal was once the only source of power in the United States. But in 1880, the first Hydropower plant was built, and since then, more of these have been erected in order to provide the people with electricity.

Geothermal Energy

Geothermal Energy comes from within the Earth itself. The steam or heat which stems from the center of the earth can be used to regulate the temperatures of buildings, and can be used to generate electricity as well.
Because water can always be replenished by rain, and because the earth’s core maintains its temperature, this is considered one form of renewable energy.

Wind Power

Even the ever-present wind can provide a renewable energy source. Wind is created as a result of the uneven heating on the earth’s surface, which causes air to move. Thus, wind power is essentially a bi-product of solar power. Wind propellers are used to collect the wind’s kinetic energy, which turns turbines that are in turn used to create electricity.

Solar Power

This form of renewable energy will be available as long as the sun shines. Solar energy can either be used as thermal energy, or it can be converted into electricity.

As a thermal energy, it can be used to heat water or spaces. Through the use of solar cells or similar photovoltaic devices, it can be used to create electricity. The heat of the sun can also be used to create steam, which turns turbines and thus produces electricity.

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.