The present study comparing actual data and simulated parameters was carried out using the PVsyst software for a 5.94 KWp grid-connected photovoltaic system,consisting of three types of mono-Si(2.04 KWp),poly-Si(2.04 ...The present study comparing actual data and simulated parameters was carried out using the PVsyst software for a 5.94 KWp grid-connected photovoltaic system,consisting of three types of mono-Si(2.04 KWp),poly-Si(2.04 KWp)and amorphous-Si(1.86 KWp)photovoltaic panels and a weather station.The research is based on data collected for one year(2020)of energy production Simulations were performed using long-term meteorological data generated by NASA and on-site measurement.A comparison of evaluated monthly and annually performance elements has also been considered:Eac,PR,FC.As shown by the results,each photovoltaic technology has certain advantages in different weather conditions.The uncertainties of the PVSyst software used to estimate the output of the photovoltaic installation have also been critically examined.展开更多
In the search for façade solutions that meet requirements for energy efficiency and office space use comfort,it seems promising to apply a combination of photovoltaic(PV)technology with switchable glazing.It is b...In the search for façade solutions that meet requirements for energy efficiency and office space use comfort,it seems promising to apply a combination of photovoltaic(PV)technology with switchable glazing.It is believed that the merging of these two technologies might benefit the cooperation between regulated solar protection and energy efficiency.This article provides a design outlook on the use of PV-EC,PV-SPD,and PV-LCD technologies in terms of their utility for office buildings in moderate climates.This study concerns thermal,optical-visual,energetic,and technical issues,and a comparative method was applied.Based on current scientific research,the results of the analysis were juxtaposed with the requirements of the office working environment:natural lighting,thermal protection,glare protection,privacy control,energy efficiency,and technical reliability.The juxtaposition of these aspects revealed the advantages and disadvantages of a given solution from an architectural point of view.PV-EC technology in a side-by-side system was found to be the most appropriate solution and the results may be applied to make preliminary design decisions.展开更多
As a low-cost photovoltaic technology, dye- sensitized solar cell （DSSC） has attracted widespread attention in the past decade. During its development to commercial application, decreasing the production cost and in...As a low-cost photovoltaic technology, dye- sensitized solar cell （DSSC） has attracted widespread attention in the past decade. During its development to commercial application, decreasing the production cost and increasing the device stability take the most impor- tance. Compared with conventional sandwich structure liquid-state DSSCs, monolithic all-solid-state mesoscopic solar cells based on mesoscopic carbon counter electrodes and solid-state electrolytes present much lower production cost and provide a prospect of long-term stability. This review presents the recent progress of materials and achievement for all-solid-state DSSCs. In particular, representative examples are highlighted with the results of our monolithic all-solid-state mesoscopic solar cell devices and modules.展开更多
The role of Photovoltaic technologies integrated or attached to the building envelope is crucial in managing the building energy demand.In this paper,the performance of PV technologies with the mounting methods of Bui...The role of Photovoltaic technologies integrated or attached to the building envelope is crucial in managing the building energy demand.In this paper,the performance of PV technologies with the mounting methods of Build-ing integrated and Free-standing(Building attached)is discussed for six different climate zone of the country.A PVGIS program proposed with three PV cell technologies(Crystalline Silicon,Copper indium diselenide,Cad-mium Telluride)is used to evaluate monthly energy generation potential and losses of the 2 kW p grid-connected PV system at the latitude and 90°.A 2 kW p PV system is chosen for Economic Weaker Section(EWS)housing schemes depending upon the roof area.From the evaluation,the performance parameter has been estimated.A new parameter Energy Deviation(ED),is proposed to choose the best PV technology in terms of performance.The results of ED agree with the parameters Performance Ratio(PR)and Capacity Factor(CF)defined under the IEC Standard 61724.The potential generation of PV technologies at 90°varies from 41%(Warm and Humid)to 64%(Cold and Sunny)when compared with the latitude.In case of Cold and Sunny and Cold and Cloudy at 90°,the generation performance of Copper indium diselenide is found better in Building integrated and Free-standing mounting methods,respectively.For the remaining zones,Cadmium Telluride technology shows better results.The Percentage loss in the system is found to be minimum in the case of Cold and Sunny,varies between 17%and 25%,and maximum is found for Warm and Humid and varies between 23.2%and 33.4%for the proposed PV technologies.The grid feed-in energy from these EWS houses for all the technologies and climatic zones is found above 45%.It is seen that the combined energy generation from the envelopes(Roof,walls,and facades)makes the houses energy plus in nature.The study has important implications for the government to promote the building integrated Photovoltaic policies in the country.展开更多
文摘The present study comparing actual data and simulated parameters was carried out using the PVsyst software for a 5.94 KWp grid-connected photovoltaic system,consisting of three types of mono-Si(2.04 KWp),poly-Si(2.04 KWp)and amorphous-Si(1.86 KWp)photovoltaic panels and a weather station.The research is based on data collected for one year(2020)of energy production Simulations were performed using long-term meteorological data generated by NASA and on-site measurement.A comparison of evaluated monthly and annually performance elements has also been considered:Eac,PR,FC.As shown by the results,each photovoltaic technology has certain advantages in different weather conditions.The uncertainties of the PVSyst software used to estimate the output of the photovoltaic installation have also been critically examined.
文摘In the search for façade solutions that meet requirements for energy efficiency and office space use comfort,it seems promising to apply a combination of photovoltaic(PV)technology with switchable glazing.It is believed that the merging of these two technologies might benefit the cooperation between regulated solar protection and energy efficiency.This article provides a design outlook on the use of PV-EC,PV-SPD,and PV-LCD technologies in terms of their utility for office buildings in moderate climates.This study concerns thermal,optical-visual,energetic,and technical issues,and a comparative method was applied.Based on current scientific research,the results of the analysis were juxtaposed with the requirements of the office working environment:natural lighting,thermal protection,glare protection,privacy control,energy efficiency,and technical reliability.The juxtaposition of these aspects revealed the advantages and disadvantages of a given solution from an architectural point of view.PV-EC technology in a side-by-side system was found to be the most appropriate solution and the results may be applied to make preliminary design decisions.
基金Acknowledgements The authors acknowledge the financial support by the National High Technology Research and Development Program of China （863 Program, No. SS2013AA50303）, the National Natural Science Foundation of China （Grant No. 61106056） and Scientific Research Foundation for Returned Scholars, Ministry of Education of China.
文摘As a low-cost photovoltaic technology, dye- sensitized solar cell （DSSC） has attracted widespread attention in the past decade. During its development to commercial application, decreasing the production cost and increasing the device stability take the most impor- tance. Compared with conventional sandwich structure liquid-state DSSCs, monolithic all-solid-state mesoscopic solar cells based on mesoscopic carbon counter electrodes and solid-state electrolytes present much lower production cost and provide a prospect of long-term stability. This review presents the recent progress of materials and achievement for all-solid-state DSSCs. In particular, representative examples are highlighted with the results of our monolithic all-solid-state mesoscopic solar cell devices and modules.
文摘The role of Photovoltaic technologies integrated or attached to the building envelope is crucial in managing the building energy demand.In this paper,the performance of PV technologies with the mounting methods of Build-ing integrated and Free-standing(Building attached)is discussed for six different climate zone of the country.A PVGIS program proposed with three PV cell technologies(Crystalline Silicon,Copper indium diselenide,Cad-mium Telluride)is used to evaluate monthly energy generation potential and losses of the 2 kW p grid-connected PV system at the latitude and 90°.A 2 kW p PV system is chosen for Economic Weaker Section(EWS)housing schemes depending upon the roof area.From the evaluation,the performance parameter has been estimated.A new parameter Energy Deviation(ED),is proposed to choose the best PV technology in terms of performance.The results of ED agree with the parameters Performance Ratio(PR)and Capacity Factor(CF)defined under the IEC Standard 61724.The potential generation of PV technologies at 90°varies from 41%(Warm and Humid)to 64%(Cold and Sunny)when compared with the latitude.In case of Cold and Sunny and Cold and Cloudy at 90°,the generation performance of Copper indium diselenide is found better in Building integrated and Free-standing mounting methods,respectively.For the remaining zones,Cadmium Telluride technology shows better results.The Percentage loss in the system is found to be minimum in the case of Cold and Sunny,varies between 17%and 25%,and maximum is found for Warm and Humid and varies between 23.2%and 33.4%for the proposed PV technologies.The grid feed-in energy from these EWS houses for all the technologies and climatic zones is found above 45%.It is seen that the combined energy generation from the envelopes(Roof,walls,and facades)makes the houses energy plus in nature.The study has important implications for the government to promote the building integrated Photovoltaic policies in the country.
