After the collapse of the Soviet Union,Russia,which is sustaining a new recovery process with Putin,is at the crossroads of a new turning point.Putin,the face of the country's deep state,may hold the presidency fo...After the collapse of the Soviet Union,Russia,which is sustaining a new recovery process with Putin,is at the crossroads of a new turning point.Putin,the face of the country's deep state,may hold the presidency for another two terms,in line with new constitutional changes.The new constitution predicts handing over some of the presidential authority to the Russian Parliament,the Duma.These changes in the constitution involve new alignments in the Russian decision-making system rather than promoting internal democracy.On the other hand,the conventional energy resources of Russia,representing the predominant part of the national income,are in a decreasing trend.The explored energy reserves are either too expensive for extraction or too far from the center of the country.Russia inevitably has to develop additional sources for export other than energy to balance her budget.With COVID-19,the vulnerability of the Russian state system and revenues came into the open.In the coming decades,Russia needs to make critical decisions to sustain her ambition to be a major power.Putin,being aware of this,is planning a transition period,behind which he will personally stand during the changeover.展开更多
Somalia Mogadishu-Turkey Training and Research Hospital is only powered by diesel generator currently.In this paper,the energy demand of this hospital is supplied by determining the optimum hybrid power renewable gene...Somalia Mogadishu-Turkey Training and Research Hospital is only powered by diesel generator currently.In this paper,the energy demand of this hospital is supplied by determining the optimum hybrid power renewable generating system.Therefore,numerous hybrid renewable power generating systems including the components like diesel generator,wind turbine,photovoltaic(PV)and battery are considered in different configurations.Eventually,they are technically,environmentally and economically analyzed by using the well-known HOMER software.Furthermore,a sensitivity analysis is also performed considering variations in three important parameters,namely average wind speed,current diesel price and also solar radiation.According to the results,the optimal system is the standalone Wind/Diesel/Battery hybrid renewable energy system(HRES)with the configuration of 1,000 kW wind turbine,350 kW diesel generator,250 kW power converters and 750 batteries.Additionally,this system has the net present cost of$5,056,700 as well as the cost of energy as$0.191/kWh.Lastly,it is clearly occurred that the Wind/Diesel/Battery HRES is eco-friendlier than other HRESs.展开更多
文摘After the collapse of the Soviet Union,Russia,which is sustaining a new recovery process with Putin,is at the crossroads of a new turning point.Putin,the face of the country's deep state,may hold the presidency for another two terms,in line with new constitutional changes.The new constitution predicts handing over some of the presidential authority to the Russian Parliament,the Duma.These changes in the constitution involve new alignments in the Russian decision-making system rather than promoting internal democracy.On the other hand,the conventional energy resources of Russia,representing the predominant part of the national income,are in a decreasing trend.The explored energy reserves are either too expensive for extraction or too far from the center of the country.Russia inevitably has to develop additional sources for export other than energy to balance her budget.With COVID-19,the vulnerability of the Russian state system and revenues came into the open.In the coming decades,Russia needs to make critical decisions to sustain her ambition to be a major power.Putin,being aware of this,is planning a transition period,behind which he will personally stand during the changeover.
文摘Somalia Mogadishu-Turkey Training and Research Hospital is only powered by diesel generator currently.In this paper,the energy demand of this hospital is supplied by determining the optimum hybrid power renewable generating system.Therefore,numerous hybrid renewable power generating systems including the components like diesel generator,wind turbine,photovoltaic(PV)and battery are considered in different configurations.Eventually,they are technically,environmentally and economically analyzed by using the well-known HOMER software.Furthermore,a sensitivity analysis is also performed considering variations in three important parameters,namely average wind speed,current diesel price and also solar radiation.According to the results,the optimal system is the standalone Wind/Diesel/Battery hybrid renewable energy system(HRES)with the configuration of 1,000 kW wind turbine,350 kW diesel generator,250 kW power converters and 750 batteries.Additionally,this system has the net present cost of$5,056,700 as well as the cost of energy as$0.191/kWh.Lastly,it is clearly occurred that the Wind/Diesel/Battery HRES is eco-friendlier than other HRESs.
