Archive for the ‘Geothermal energy’ Category

Underground mining is a sweaty job, and not just because of the hard work it takes to haul ore: Mining tunnels fill with heat naturally emitted from the surrounding rock.

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By the time a geothermal energy project at Missouri University of Science and Technology is completed in 2014, the campus’s annual energy use will be cut in half and its carbon footprint reduced by 25,000 metric tons per year.

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In a recent report the International Energy Agency (IEA) shows how to grow global production of geothermal heat and electricity tenfold by 2050. If their recommendation will be followed the IEA believes that “geothermal energy can account 3.5% of annual global electricity production and 3.9% of energy for heat by 2050.”

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As global energy demand increases and efforts to curb greenhouse gas emissions intensify, an increasing number of countries throughout the world are looking to tap geothermal resources to drive low carbon development.

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U.S. Geothermal Inc., a renewable energy company focused on  the development, production and sale of electricity from geothermal energy, yesterday announced the financial closing with the U.S. Department of Energy (“DOE”) of a $96.8-million loan guarantee to construct its planned 23-megawatt-net power plant at Neal Hot Springs in Eastern Oregon.

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When a team of scientists drilling near an Icelandic volcano hit magma in 2009, they had to abandon their planned experiments on geothermal energy. But the mishap could point the way to an alternative source of geothermal power.

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Geothermal energy has always been used by man, but it wasn’t until the late 19th century that geothermal energy was “rediscovered” and used on an industrial scale. Initially, it was used to produce electricity from steam, and then also came to be exploited for heating. The principle is to use boreholes to access heat in ground water, then use it for heating homes.

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