geothermal data Articles

  • What’s geothermal again?

    Some green energy sources seem to have charisma; others struggle for public attention with little success. Solar energy is an “it” technology, as evidenced once again by the tremendous participation in the annual Solar Power International conference in Anaheim, California this week (Oct. 27-29). Twice as many companies (945) are displaying their wares in the Expo Hall this year, despite the still ...

  • Exergoeconomic evaluation of a geothermal power plant

    In this study, exergy and exergoeconomic analyses of the Dora II geothermal power plant (DGPP) with 9.5 MW net power output are carried out by using real thermodynamic and cost data. The exergetic efficiency of this plant is calculated to be 29.6%. The highest exergy destruction rate among the DGPP components occurs in the cooling towers followed by the turbines, vaporisers, preheaters and pumps. ...


    By Inderscience Publishers

  • Personal Account: Stanford Geothermal Workshop

    AltaRock Energy’s Matt Uddenberg accompanied a group of staff to this year’s Stanford Geothermal Conference, where AltaRock’s Susan Petty and Trenton Cladouhos gave a presentation on the Newberry EGS Demonstration. This was Matt’s first experience with the workshop, so we asked him to ...


    By AltaRock Energy, Inc.

  • Geothermal Power Approaches 12,000 Megawatts Worldwide

    In 2013, world geothermal electricity-generating capacity grew 3 percent to top 11,700 megawatts across 24 countries. Although some other renewable energy technologies are seeing much faster growth—wind power has expanded 21 percent per year since 2008, for example, while solar power has grown at a blistering 53 percent annual rate—this was geothermal’s best year since the ...


    By Earth Policy Institute

  • World geothermal power generation nearing eruption

    With fossil fuel prices escalating and countries searching for ways to reduce oil dependence and greenhouse gas emissions, capturing the earth’s heat for power generation is garnering new attention. First begun in Larderello, Italy, in 1904, electricity generation using geothermal energy is now taking place in 24 countries, 5 of which use it to produce 15 percent or more of their total ...


    By Earth Policy Institute

  • Geothermal Heat Pump (GHP) - Case Studies

    Case Study: “GHP schools used approximately 26% less source energy per square foot of floor area,” according to an evaluation of Lincoln, Nebraska schools by the Department of Energy. The report concludes that the schools using GHP technology “outperform others in the school district.” Case Study: Annual electrical consumption in Fort Polk ...

  • World geothermal power generation nearing eruption

    With fossil fuel prices escalating and countries searching for ways to reduce oil dependence and greenhouse gas emissions, capturing the earth’s heat for power generation is garnering new attention. First begun in Larderello, Italy, in 1904, electricity generation using geothermal energy is now taking place in 24 countries, 5 of which use it to produce 15 percent or more of their total ...


    By Earth Policy Institute

  • Investigation of some renewable energy and exergy parameters for two Geothermal District Heating Systems

    In this study, three new exergy parameters, namely total exergy destruction ratio, component exergy destruction ratio and dimensionless exergy destruction are introduced in addition to energetic renewability ratio, exergetic renewability ratio, energetic reinjection ratio and exergetic reinjection ratio, and compared for Edremit and Bigadic Geothermal District Heating Systems (GDHSs) based on ...


    By Inderscience Publishers

  • IF Technology - Netherlands based Sun Solutions deploys eSight with SharePoint integration for management of geothermal energy systems at IF Technology

    IF Technology is Europe’s foremost specialist on geothermal energy systems. In the Netherlands over a thousand systems are in place where heat from the summer and cold from the winter is stored underground to be used again six months later. Needless to say, making use of nature’s own heating and cooling equipment makes for a very energy efficient way to get a comfortable temperature ...


    By eSight Energy

  • A BME solution of the stochastic three-dimensional Laplace equation representing a geothermal field subject to site-specific information

    This work develops a model of the geothermal field in the Nea Kessani region (Greece) by means of the Bayesian maximum entropy (BME) method, which describes the temperature variations across space in the underground geological formations. The geothermal field is formed by a thermal reservoir consisting of arcosic sandstones. The temperature distribution vs depth was first investigated by the ...


    By Springer

  • Plan B 4.0 by the numbers - data highlights on solar energy

    Concerns about global warming, rising fossil fuel prices, and oil insecurity have prompted calls for a new energy economy, one that replaces fossil fuels with renewables. The sun is an enormous reservoir of energy; in fact, the sunlight reaching Earth in just one hour is enough to power the global economy for a whole year. Harnessing some of this energy is an essential component of Earth Policy ...


    By Earth Policy Institute

  • Renewables account for 11%+ of U.S. electricity production

    Renewable energy, including wind, solar, biomass, biofuel, geothermal, and hydroelectric sources, accounted for 11.14% of U.S. electricity production during the first six months of 2010, according to the most recent issue of Monthly Energy Review by the U.S. Energy Information Administration (EIA). The 11.14% figure marks continued growth for U.S. renewable energy, which accounted for 10.71% of ...

  • Net-zero energy: a case study on renewable energy and policy issues at Richardsville Elementary School, Kentucky

    Blazing the trail as the first net-zero energy school, Richardsville Elementary School, Kentucky produces as much renewable energy as it consumes. The high performance, LEED® Gold certified facility was opened in October 2010 for 550 students. Key elements included insulated concrete form-walls, geothermal HVAC systems with decentralised and distributive pumps, active day-lighting with light ...


    By Inderscience Publishers

  • New energy economy emerging in the United States

    As fossil fuel prices rise, as oil insecurity deepens, and as concerns about climate change cast a shadow over the future of coal, a new energy economy is emerging in the United States. The old energy economy, fueled by oil, coal, and natural gas, is being replaced by one powered by wind, solar, and geothermal energy. The transition is moving at a pace and on a scale that we could not have ...


    By Earth Policy Institute

  • Renewable energy and energy efficiency in Bulgaria

    The interest in renewable energy sources (RESs) utilisation and energy efficiency improvement programmes in Bulgaria reflects the changes in the field of energy policy worldwide and in Europe. Now energy management becomes a great problem of inner policy of Bulgarian government. In the last few years there has been a growing attention to the RESs applications. Bulgaria has one of Southern ...


    By Inderscience Publishers

  • Projected Costs of Generating Electricity - 2015 Edition

    This joint report by the International Energy Agency (IEA) and the Nuclear Energy Agency (NEA) is the eighth in a series of studies on electricity generating costs. As policy makers work to ensure that the power supply is reliable, secure and affordable, while making it increasingly clean and sustainable in the context of the debate on climate change, it is becoming more crucial that they ...


    By International Energy Agency

  • Case study - Managing complex energy systems

    Introduction: Campus on a Renewable Mission The Chewonki Foundation owns and runs a school campus in Wiscasset, Maine that supports a high school program, a boys and girls summer camp, and an organic farm. Chewonki is an alternative school with a focus on environmental education and natural history. ch-classroom.jpgAs such, one of the Foundation’s goals is to teach its students ...


    By Powerhouse Dynamics

  • Power Monthly Deal Analysis M&A and Investment Trends November 2012

    GlobalData’s “Power Monthly Deal Analysis – November 2012: M&A and Investment Trends” report is an essential source of data and trend analysis on the mergers and acquisitions (M&As) and financings in the power industry. The report provides detailed ...


  • Create new jobs & cut emissions by investing in renewable energy efficiency

    At a time when major US companies are announcing job layoffs almost daily, the renewable energy industry is hiring new workers every day to build wind farms, install rooftop solar arrays, and build solar thermal and geothermal power plants. The output of industrial firms that manufacture the equipment for these energy facilities is expanding by well over 30 percent a year. These investments both ...


    By Earth Policy Institute

  • The right mix: the Philippines achieving its renewable energy goals

    The global energy system is undergoing a transition from fossil fuels to renewable energy. There are clear signs that the pace of change is accelerating. 2009 was the second year in a row that more money was invested worldwide in renewable electricity generation projects than in fossil fuel-powered plants, according to data published by the United Nations. Developing countries, especially in ...

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