The Experts below are selected from a list of 51612 Experts worldwide ranked by ideXlab platform
Ruggero Bertani - One of the best experts on this subject based on the ideXlab platform.
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geothermal power generation in the world 2010 2014 update report
Geothermics, 2016Co-Authors: Ruggero BertaniAbstract:We have analyzed the major activities carried out for geothermal electricity generation since WGC2010. New data has been taken from WGC2015 Country Update reports, private communications from IGA members and Affiliated Organizations, and we would like to acknowledge all IGA friends for their valuable help. Other updates have been collected from websites of private and public organizations involved in geothermal development. Plants under construction, which are expected to be commissioned in 2015, are included in the Installed Capacity. An increase of about 1,7 GW in the five year term 2010-2015 has been achieved (about 16%), following the rough standard linear trend of approximately 350 MW/year, with an evident increment of the average value of about 200 MW/year in the precedent 2000-2005 period (Bertani, 2005a, 2005b, 2006, 2007, 2010, 2012 and 2013). 1. INTRODUCTION The total Installed Capacity from worldwide geothermal power plant is given in tables I and II and in figures 1 and 2. For reaching the forecasting of 2020, based on an accurate accounting of all the existing projects at an executive stage, a clear change in the present linear growing trend should be necessary. In table III data from all the countries currently generating geothermal electricity are presented, with the 2010 and the updated at 2015 values of Installed Capacity and the produced energy per year, the increment since 2010 both in absolute terms and in percentage, and the aforesaid mentioned short term forecasting to year 2020 for the Installed Capacity. In figure 3 a world map of the year 2015 Installed Capacity is presented.
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Geothermal power generation in the world 2010–2014 update report
Geothermics, 2016Co-Authors: Ruggero BertaniAbstract:We have analyzed the major activities carried out for geothermal electricity generation since WGC2010. New data has been taken from WGC2015 Country Update reports, private communications from IGA members and Affiliated Organizations, and we would like to acknowledge all IGA friends for their valuable help. Other updates have been collected from websites of private and public organizations involved in geothermal development. Plants under construction, which are expected to be commissioned in 2015, are included in the Installed Capacity. An increase of about 1,7 GW in the five year term 2010-2015 has been achieved (about 16%), following the rough standard linear trend of approximately 350 MW/year, with an evident increment of the average value of about 200 MW/year in the precedent 2000-2005 period (Bertani, 2005a, 2005b, 2006, 2007, 2010, 2012 and 2013). 1. INTRODUCTION The total Installed Capacity from worldwide geothermal power plant is given in tables I and II and in figures 1 and 2. For reaching the forecasting of 2020, based on an accurate accounting of all the existing projects at an executive stage, a clear change in the present linear growing trend should be necessary. In table III data from all the countries currently generating geothermal electricity are presented, with the 2010 and the updated at 2015 values of Installed Capacity and the produced energy per year, the increment since 2010 both in absolute terms and in percentage, and the aforesaid mentioned short term forecasting to year 2020 for the Installed Capacity. In figure 3 a world map of the year 2015 Installed Capacity is presented.
J.a. Fraguela - One of the best experts on this subject based on the ideXlab platform.
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Power peaks against Installed Capacity in tidal stream
2013Co-Authors: Gregorio Iglesias, Rodrigo Carballo, J.a. FraguelaAbstract:Owing to the natural variability of tidal flow, the curve of available power against time at the site of a tidal stream plant is typically spiky. This means that, for the power peaks to be fully exploited, the Installed Capacity of the plant would have to be large relative to its mean power output. In practice, a balance should be struck between the percentage of the total resource that is exploited and the Installed power (and installation cost) of the plant. The purpose of this study is to examine this problematic through a case study: a tidal stream plant proposed for Ria de Ortigueira, a large estuary in north-west Spain with a tidal range of 4.5 m. A numerical model of the estuary hydrodynamics is implemented, calibrated and successfully validated using field data. The model is used to determine the tidal flow patterns. The question of the Installed Capacity is examined for the two areas with the greatest potential as tidal stream sites. It is shown that the nominal power that is required can be greatly reduced by relinquishing the peaks of the power curve, with only a slight reduction in the energy output.
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Power peaks against Installed Capacity in tidal stream energy
IET Renewable Power Generation, 2013Co-Authors: M. Sánchez, Gregorio Iglesias, Rodrigo Carballo, J.a. FraguelaAbstract:Owing to the natural variability of tidal flow, the curve of available power against time at the site of a tidal stream plant is typically spiky. This means that, for the power peaks to be fully exploited, the Installed Capacity of the plant would have to be large relative to its mean power output. In practice, a balance should be struck between the percentage of the total resource that is exploited and the Installed power (and installation cost) of the plant. The purpose of this study is to examine this problematic through a case study: a tidal stream plant proposed for Ria de Ortigueira, a large estuary in north-west Spain with a tidal range of 4.5 m. A numerical model of the estuary hydrodynamics is implemented, calibrated and successfully validated using field data. The model is used to determine the tidal flow patterns. The question of the Installed Capacity is examined for the two areas with the greatest potential as tidal stream sites. It is shown that the nominal power that is required can be greatly reduced by relinquishing the peaks of the power curve, with only a slight reduction in the energy output.
Babis Theodoulidis - One of the best experts on this subject based on the ideXlab platform.
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Organizational Responsibility Model: Dealing with Demand for Services Higher Than Installed Capacity
2013 IEEE International Conference on Systems Man and Cybernetics, 2013Co-Authors: Guttenberg Ferreira Passos, Ilan Chamovitz, Babis TheodoulidisAbstract:Brazil is looking for a new development model, a model that makes the expansion of opportunities to learn, to work and to provide the basis for economic growth. The construction of this model depends on institutional innovations in various sectors of public policy, such as the applicability of complex systems models. It is important for these to have positive results in the strategic planning of organizations with emphasis on issues related to Management by Results, aiming at the improvement of public services in the face of demand for services higher than Installed Capacity.
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SMC - Organizational Responsibility Model: Dealing with Demand for Services Higher Than Installed Capacity
2013 IEEE International Conference on Systems Man and Cybernetics, 2013Co-Authors: Guttenberg Ferreira Passos, Ilan Chamovitz, Babis TheodoulidisAbstract:Brazil is looking for a new development model, a model that makes the expansion of opportunities to learn, to work and to provide the basis for economic growth. The construction of this model depends on institutional innovations in various sectors of public policy, such as the applicability of complex systems models. It is important for these to have positive results in the strategic planning of organizations with emphasis on issues related to Management by Results, aiming at the improvement of public services in the face of demand for services higher than Installed Capacity.
Shafiqur Rehman - One of the best experts on this subject based on the ideXlab platform.
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Feasibility study of the grid connected 10 MW Installed Capacity PV power plants in Saudi Arabia
Renewable and Sustainable Energy Reviews, 2017Co-Authors: Shafiqur Rehman, M.a. Ahmed, Mohand H. Mohamed, Fahad A. Al-sulaimanAbstract:Abstract The study presents technical, environmental and economic aspects for the selection of viable sites for constructing 10 MW Installed Capacity grid connected photovoltaic power plants in Saudi Arabia. Available photovoltaic modules are analyzed and one is chosen for the analysis. Meteorological data like global solar radiation, sunshine duration, dry bulb temperature, and relative humidity was used to conduct the feasibility analysis using RETScreen software in terms of energy production, greenhouse gas (GHG) emissions, and financial parameters for the 44 sites. Bisha is found to be the best site for the installation of 10 MW Installed Capacity grid connected photovoltaic power plant due to highest solar radiation intensity and longer sunshine duration. Both of these factors contribute to higher energy yield and less GHG emissions. On the lower extreme, Sulayel is found to be generating minimum energy from the same Installed Capacity of PV panels. Finally, it is recommended to commence constructing large grid-connected photovoltaic plant at Bisha with 70% government grant because the electricity export rate in Saudi Arabia is 72.57% cheaper than global price.
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Development and economic assessment of a grid connected 20 MW Installed Capacity wind farm
Renewable and Sustainable Energy Reviews, 2011Co-Authors: Shafiqur Rehman, Aftab Ahmad, Luai M. Al-hadhramiAbstract:The study presents the design and economic assessment of a wind farm of 20 MW Installed Capacity, located in the Eastern region of Saudi Arabia. The wind farm is designed using 2 MW size wind machines from Vestas at a hub-height of 60 m using specialized WindFarm software. The land area is considered as flat and away from airports, habitats, hospitals, and communication towers. The energy yield and the wake losses were obtained from the energy yield module of the software for the wind farm. On-site data was collected for a period of 1 year and historical meteorological data was obtained from nearby station were utilized in the design of the proposed wind farm. The proposed wind farm could generate 59,037.7 MW h of electricity annually with plant Capacity factor of 33.7%, excluding the wake losses of 3.48%. With prevalent wind turbine and other equipment costs, installation, civil works, balance of plants and operation and maintenance costs, the proposed wind farm could produced the energy at US¢ 2.94 per kW h. This study clearly indicates that grid connected wind farms could be developed in and around the measurement site.
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DETAILED ANALYSIS OF A 550-MW Installed Capacity WIND FARM IN SAUDI ARABIA
International Journal of Green Energy, 2010Co-Authors: Shafiqur Rehman, Aftab Ahmad, Luai M. Al-hadhramiAbstract:The study presents the wind speed data, frequency distribution, local wind shear exponent, energy yield, air density, and turbulence intensity analysis for a site located in the eastern region of Saudi Arabia. Overall mean wind speed values at 20, 30, and 40 m above ground level were 4.72, 5.34, and 5.74 m/s respectively. The mean local wind shear exponent and air density were found to be 0.302 and 1.126 kg/m3 respectively. Lower turbulence intensities were noticed at higher altitudes. The proposed wind farm of 550 MW Installed Capacity could generate 2433.8 GWh of electricity with a plant Capacity factor of 50.3% during the year. The study found that during the entire year of operation, the wind turbines remained calm for 3.9% of the time and operated at rated Capacity for 9.3% of the time. Overall, noticeable seasonal and diurnal patterns were observed for all the parameters studied in the present scope of the work.
Qiang Wang - One of the best experts on this subject based on the ideXlab platform.
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effective policies for renewable energy the example of china s wind power lessons for china s photovoltaic power
Renewable & Sustainable Energy Reviews, 2010Co-Authors: Qiang WangAbstract:China, one of the global biggest emitter Of CO(2), needs promotion renewable energy to reduce air pollution from its surging fossil fuel use, and to increase its energy supply security. Renewable energy in its infancy needs policy support and market cultivation. Wind power Installed Capacity has boomed in recent year in China, as a series of effective support policies were adopted. In this paper, I review the main renewable energy policies regarding to China's wind power, including the Wind Power Concession Program, Renewable Energy Law, and a couple of additional laws and regulations. Such policies have effectively reduced the cost of wind power Installed Capacity, stimulated the localization of wind power manufacture, and driven the company investment in wind power. China is success in wind power Installed Capacity, however, success in wind-generated electricity has yet achieved, mainly due to the backward grid system and lack of quota system. The paper ends with the recommended best practice of the China's wind power Installed Capacity might be transferable to China's photovoltaic power generation. (C) 2009 Elsevier Ltd. All rights reserved.
