energy mega info
Geothermal energy today knows that is the heat energy from the earth. Volcanoes, geysers, hot springs and areas of high tectonic activity are suitable for this type of energy to extract water, steam and hot rocks that compose them.
The tectonic activity of volcanoes and geysers moves and releases large amounts of energy, which is extracted as steam or hot water, and drives a turbine that generates electricity.
There are two types of deposits, the hydrothermal water is extracted at high pressure that is near a heat source, and the hot rock systems, which is a hole located between 500 and 2,000 meters deep, with a roof made by impermeable rocks, a water tank and fractured rocks that allow fluid flow and, therefore, the transfer of heat from the heat source to the surface. In this case, it pierces the ground to reach the source of heat, cold water is injected and used it once heated.
Aquifer fluids are less elevated temperatures, normally between 70 and 150 º C. Therefore, the steam-electricity conversion takes place with reduced performance: small power plants can exploit these resources..
Low temperature geothermal energy
Temperatures between 20 and 60 ° C, which is the typical temperature of hot spring baths. This energy is used for domestic, urban or agricultural. In the world there are several remarkable experiences in this regard in Italy, New Zealand and Canada, places where geothermal energy supports the traditional use. In the Philippines, the geothermal system has a power capacity of 2,000 megawatts.
Apart from power generation, water used in geothermal plants could also be used in industrial processes, in some treatments textile or food industry, and even take advantage of the warm water to take a spa without the need for fuel or electricity to heat boilers.
If you want to know which way the wind is blowing global (or the sun shining or burning coal) look at China. The news about our energy future and the future of the world’s great powers come from there. Washington is already looking. In addition, it is doing with high anxiety.
Seldom has a newspaper interview said more about the global power shift is taking place in our world. On 20 July, the chief economist of the International Energy Agency (IEA), Faith Biro, told the Wall Street Journal that China had surpassed U.S. to become the world’s biggest consumer of energy. One could read this story in different ways: as a test of China’s industrial superiority, as evidence of the continuing recession in the United States as evidence of the growing popularity of automobiles in the eastern country and even as evidence of greater U.S. comparative efficiency. All these observations would be valid. However, obviate the main issue: to become major global energy consumers, China will strengthen its dominant role in the international scene and set the course of our global future.
Taking into account the close linkage between energy and global economy and growing doubts about the future availability of oil and other fuels, China’s decisions on energy spend to have a far-reaching impact. As a major player in the global energy market, China decisively determine not only the prices paid for key fuels but also the energy systems that will dominate from here on out. What is more, the Chinese on energy decisions will determine whether China and the U.S. can avoid being dragged into a global battle for oil imports and whether the world will escape a catastrophic climate change.
With the assistance of some 80 people took place in Tomcod Forum seminar in Chile mega hydroelectric real “alternative for a sustainable future? Whose main conclusion is that the country needs to develop alternative energy generation, which is not only based on water.
Juan Pablo Oregon, coordinator of the campaign Ecosystems and Patagonia without dams, Chile explained that currently requires a sustainable energy policy with a strong foundation for energy efficiency, which is cheap and attainable. It is therefore important to create a level playing field between different energy sources.
For his part, Roberto Roman engineer who discussed current developments in the energy matrix and the alternatives to mega-dams and power plants, said the trends in the world “takes over” intelligent network is the means that the claims are dynamically modulated to maximize resources and also have low emissions.
In this framework, also developed a forum on citizen and indigenous experiences of those affected by the energy mega projects and institutional responses, in which one of the panelists was Irene Romero Milieus Community Council, who explained that his community is planning a geothermal affect them seriously.