Energi panas bumi cukup ekonomis dan ramah lingkungan, namun terbatas hanya pada dekat area perbatasan lapisan tektonik.
Pangeran Piero Ginori Conti mencoba generator panas bumi pertama pada 4 July 1904 di area panas bumi Larderello di Italia. Grup area sumber panas bumi terbesar di dunia, disebut The Geyser, berada di California, Amerika Serikat. Pada tahun 2004, lima negara (El Salvador, Kenya, Filipina, Islandia, dan Kostarika) telah menggunakan panas bumi untuk menghasilkan lebih dari 15% kebutuhan listriknya.
Energi panas bumi adalah energi yang diekstraksi dari panas yang tersimpan di dalam bumi. Energi panas bumi ini berasal dari aktivitas tektonik di dalam bumi yang terjadi sejak planet ini diciptakan. Panas ini juga berasal dari panas matahari yang diserap oleh permukaan bumi. Energi ini telah dipergunakan untuk memanaskan (ruangan ketika musim dingin atau air) sejak peradaban Romawi, namun sekarang lebih populer untuk menghasilkan energi listrik. Sekitar 10 Giga Watt pembangkit listrik tenaga panas bumi telah dipasang di seluruh dunia pada tahun 2007, dan menyumbang sekitar 0.3% total energi listrik dunia.
Energi panas bumi cukup ekonomis dan ramah lingkungan, namun terbatas hanya pada dekat area perbatasan lapisan tektonik.
Pangeran Piero Ginori Conti mencoba generator panas bumi pertama pada 4 July 1904 di area panas bumi Larderello di Italia. Grup area sumber panas bumi terbesar di dunia, disebut The Geyser, berada di California, Amerika Serikat. Pada tahun 2004, lima negara (El Salvador, Kenya, Filipina, Islandia, dan Kostarika) telah menggunakan panas bumi untuk menghasilkan lebih dari 15% kebutuhan listriknya. [sunting] Energi listrik
Pembangkit listrik tenaga panas bumi hanya dapat dibangun di sekitar lempeng tektonik di mana temperatur tinggi dari sumber panas bumi tersedia di dekat permukaan. Pengembangan dan penyempurnaan dalam teknologi pengeboran dan ekstraksi telah memperluas jangkauan pembangunan pembangkit listrik tenaga panas bumi dari lempeng tektonik terdekat. Efisiensi termal dari pembangkit listrik tenaga panas bumi cenderung rendah karena fluida panas bumi berada pada temperatur yang lebih rendah dibandingkan dengan uap atau air mendidih. Berdasarkan hukum termodinamika, rendahnya temperatur membatasi efisiensi dari mesin kalor dalam mengambil energi selama menghasilkan listrik. Sisa panas terbuang, kecuali jika bisa dimanfaatkan secara lokal dan langsung, misalnya untuk pemanas ruangan. Efisiensi sistem tidak mempengaruhi biaya operasional seperti pembangkit listrik tenaga bahan bakar fosilsumber :id.wikipedia.org
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Geothermal energy is energy that is extracted from the heat stored in the earth. Geothermal energy is derived from within the Earth's tectonic activity that occurred since the planet was created. This heat comes from solar heat absorbed by the earth's surface. This energy has been used to heat (the room during the winter or water) since the Roman civilization, but is now more popular to generate electrical energy. About 10 Giga Watt geothermal power plants have been installed worldwide in 2007, and contributes about 0.3% of total world electricity.
Geothermal energy is economical and environmentally friendly, but limited only to the tectonic layers near the border area.
Prince Piero Ginori Conti try first geothermal generator on 4 July 1904 in Larderello geothermal areas in Italy. The Group's largest geothermal resource areas in the world, called The Geyser, located in California, USA. In 2004, five countries (El Salvador, Kenya, Philippines, Iceland, and Kostarika) has used geothermal energy to produce more than 15% of its electricity needs.
Geothermal energy is energy that is extracted from the heat stored in the earth. Geothermal energy is derived from within the Earth's tectonic activity that occurred since the planet was created. This heat comes from solar heat absorbed by the earth's surface. This energy has been used to heat (the room during the winter or water) since the Roman civilization, but is now more popular to generate electrical energy. About 10 Giga Watt geothermal power plants have been installed worldwide in 2007, and contributes about 0.3% of total world electricity.
Geothermal energy is economical and environmentally friendly, but limited only to the tectonic layers near the border area.
Prince Piero Ginori Conti try first geothermal generator on 4 July 1904 in Larderello geothermal areas in Italy. The Group's largest geothermal resource areas in the world, called The Geyser, located in California, USA. In 2004, five countries (El Salvador, Kenya, Philippines, Iceland, and Kostarika) has used geothermal energy to produce more than 15% of its electricity needs. [Edit] Electricity
Geothermal power plant can only be built in the vicinity of plate tectonics in which the high temperature geothermal resources are available near the surface. Development and improvements in drilling and extraction technologies have expanded the reach of the construction of a geothermal power plant from the nearest plate tectonics. Thermal efficiency of geothermal power plants tend to be low because of the geothermal fluid is at a lower temperature compared with steam or boiling water. Under the laws of thermodynamics, the low temperature limit the efficiency of heat engines in taking energy for generating electricity. Residual heat, except if it can be used locally and directly, eg for space heating. Efficiency of the system does not affect operational costs such as power generation of fossil fuels
source: id.wikipedia.org
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