In 2018,the Government of India approved the establishment of the New All India Institute of Medical Sciences(AIIMS)in Thoppur,Madurai,Tamil Nadu,India.As the most important amenity for continuing primary care and res...In 2018,the Government of India approved the establishment of the New All India Institute of Medical Sciences(AIIMS)in Thoppur,Madurai,Tamil Nadu,India.As the most important amenity for continuing primary care and rescue response is a healthcare facility,a secure electricity supply becomes an imperative necessity.Hence,as the energy supplier for the new AIIMS,Madurai,this paper proposes a microgrid combined with the utility grid.The microgrid consists of a 4-MW photovoltaic system,a 1.8-MW wind-turbine energy-conversion system,a backup diesel generator capable of meeting the forecasted maximum demand and a 1-MW battery energy-storage system.The AIIMS Microgrid will have a service providing a capacity of 20 MVA following integration with the utility grid.The proposed microgrid would be the first attempt at healthcare facilities in India since its first day of work to ensure the availability of electricity.It would have a 9.8%return on investment,a 13.6%internal rate of return and a payback period of 6.75 years once it is operational,as well as an attractive levelized cost of energy(LCOE)of USD 0.07547/kWh.It would provide an environmentally friendly atmosphere by avoiding an annual emission of 6261132 kg of carbon dioxide,27362 kg of sulphur dioxide and 12838 kg of nitrogen oxides as compared to power supplied entirely from the utility grid.展开更多
Recognizing the importance of electricity as a driver of rapid economic growth and poverty alleviation,India aims to provide access to all households by 2030.Despite the best efforts of state and federal governments t...Recognizing the importance of electricity as a driver of rapid economic growth and poverty alleviation,India aims to provide access to all households by 2030.Despite the best efforts of state and federal governments to meet consumers’electrical needs,budget constraints,inefficient operations and massive loan burdens have hampered their efforts.Aside from these concerns,rural India,which accounts for 65%of the population,is plagued by a slew of issues,including low electricity demand,a low load factor and the expectation of cheap electricity.These concerns bind the authorities’hands,preventing them from moving forward.As a result,this project aims to model an autonomous microgrid system that integrates three potential renewable-energy systems,namely wind,sun and hydrokinetic,to provide electricity for a remote society.It starts with assessing the region’s electricity needs with its inhabitants.The HOMER Pro platform creates a cost-effective microgrid based on the demand estimate.The components of the microgrid include 6.4-kW small wind turbine(SWT)groups,4.4-kW solar photovoltaic(PV)panels,a 5-kW hydrokinetic water turbine,battery storage and a converter.The project is unique in that it considers site-specific initial capital costs,replacement costs,and operation and maintenance costs of the renewable-energy systems,and it does not include any environmentally hazardous energy system.The successful optimization results in terms of levelized energy costs are$0.0538,$0.0614 and$0.0427/kWh for wind,solar and hydrokinetic components,respectively,without any environmental issues.展开更多
文摘In 2018,the Government of India approved the establishment of the New All India Institute of Medical Sciences(AIIMS)in Thoppur,Madurai,Tamil Nadu,India.As the most important amenity for continuing primary care and rescue response is a healthcare facility,a secure electricity supply becomes an imperative necessity.Hence,as the energy supplier for the new AIIMS,Madurai,this paper proposes a microgrid combined with the utility grid.The microgrid consists of a 4-MW photovoltaic system,a 1.8-MW wind-turbine energy-conversion system,a backup diesel generator capable of meeting the forecasted maximum demand and a 1-MW battery energy-storage system.The AIIMS Microgrid will have a service providing a capacity of 20 MVA following integration with the utility grid.The proposed microgrid would be the first attempt at healthcare facilities in India since its first day of work to ensure the availability of electricity.It would have a 9.8%return on investment,a 13.6%internal rate of return and a payback period of 6.75 years once it is operational,as well as an attractive levelized cost of energy(LCOE)of USD 0.07547/kWh.It would provide an environmentally friendly atmosphere by avoiding an annual emission of 6261132 kg of carbon dioxide,27362 kg of sulphur dioxide and 12838 kg of nitrogen oxides as compared to power supplied entirely from the utility grid.
文摘Recognizing the importance of electricity as a driver of rapid economic growth and poverty alleviation,India aims to provide access to all households by 2030.Despite the best efforts of state and federal governments to meet consumers’electrical needs,budget constraints,inefficient operations and massive loan burdens have hampered their efforts.Aside from these concerns,rural India,which accounts for 65%of the population,is plagued by a slew of issues,including low electricity demand,a low load factor and the expectation of cheap electricity.These concerns bind the authorities’hands,preventing them from moving forward.As a result,this project aims to model an autonomous microgrid system that integrates three potential renewable-energy systems,namely wind,sun and hydrokinetic,to provide electricity for a remote society.It starts with assessing the region’s electricity needs with its inhabitants.The HOMER Pro platform creates a cost-effective microgrid based on the demand estimate.The components of the microgrid include 6.4-kW small wind turbine(SWT)groups,4.4-kW solar photovoltaic(PV)panels,a 5-kW hydrokinetic water turbine,battery storage and a converter.The project is unique in that it considers site-specific initial capital costs,replacement costs,and operation and maintenance costs of the renewable-energy systems,and it does not include any environmentally hazardous energy system.The successful optimization results in terms of levelized energy costs are$0.0538,$0.0614 and$0.0427/kWh for wind,solar and hydrokinetic components,respectively,without any environmental issues.
