We propose a stability index and construct a long time series of solar radiation stability from 1981 to 2022 across China. We also extract the frequency and maximum duration of extreme low-light events and explore their spatio-temporal patterns in China. Our analysis reveals spatially unbalanced solar energy resources and varied temporal trends
A high-resolution, exhaustive assessment of the current spatiotemporal pattern of solar energy potential in China has been carried out by multiple studies, and the results
We obtain an error-analysis benchmark for the forecasting of hourly wind and solar output potential in 30 provinces of China in 2016 using the autoregressive integrated moving average (ARIMA)...
In this study, the spatial distribution of solar energy resources in China is analyzed by evaluating and analyzing the optimal tilt angle of the PV panels. The results could serve as a basis for guiding decision-making for the installation of PV panels and the utilization of solar energy resources in China.
Precisely controlling bulk heterojunction (BHJ) morphology through molecular design is one of the main longstanding challenges in developing high-performance organic solar cells (OSCs). Herein, three small molecule acceptors (SMAs) with different side chains (methyl, 2-ethylhexyl, and 2-decyl tetradecyl on benzotriazole unit), namely R-M, R-EH, R-DTD, were
Manager, China Offshore Technology Center, ABS Greater China Division, Shanghai, P. R. China . ABSTRACT: Stability criterion and its calculation are the crucial issue in the application of sail
Because of the randomness of wind power and photovoltaic (PV) output of new energy bases, the problem of peak regulation capability and voltage stability of ultra-high voltage direct current (UHVDC) transmission lines, we proposed an optimum allocation method of installed capacity of the solar-thermal power station based on chance constrained pr...
The calculation method for provincial labor and land coefficients involved dividing the provincial parameter values by the national average. The parameter for labor coefficient was the "average wages of urban employees in the electricity, gas, and water production and supply industry", obtained from the National Bureau of Statistics of the
This study aims to fill these gaps by assessing mainland China''s solar energy resources using the TMY method and China Meteorological Forcing Dataset. The results show that the data record...
Three static techniques (i.e. Power flow, Continuation Power Flow (CPF) and the Q–V curve) are used to assess the voltage stability of the power grid with a Solar Photovoltaic Generator (SPVG)...
Based on the formation mechanism and key factors of regional ecosystem stability, five specific evaluation indices, namely, the SNI, HQI, GPP, NDVI and LAI, were selected to construct a comprehensive index for evaluating regional ecosystem stability. The calculation methods and ecological meanings of evaluation indicators are described in Table 1.
Three static techniques (i.e. Power flow, Continuation Power Flow (CPF) and the Q–V curve) are used to assess the voltage stability of the power grid with a Solar
Scientific Data - Mapping of 10-km daily diffuse solar radiation across China from reanalysis data and a Machine-Learning method Skip to main content Thank you for visiting nature .
In this study, the calculation methods for direct incident solar radiation calculations used in BEMPs are first analyzed, based upon which an improved method for a direct incident solar radiation calculation is proposed. Based on the collected direct normal solar irradiance (DNSG) data of 2016 from eight radiation stations in China, the proposed method
We obtain an error-analysis benchmark for the forecasting of hourly wind and solar output potential in 30 provinces of China in 2016 using the autoregressive integrated
Method is proposed to calculate damage stability in real time based on 3D geometric models of the ship. A 7500-dead-weight-tonnage (DWT) asphalt tanker, "T AI HUA WAN", is used to illustrate the
Because of the randomness of wind power and photovoltaic (PV) output of new energy bases, the problem of peak regulation capability and voltage stability of ultra-high voltage direct current (UHVDC) transmission lines, we proposed an
In this paper, a methodology integrating richness, stability, and complementarity to assess accommodable potential of solar and wind power generation was
Compared with the calculation of solar radiation model based on sky view factor, it is proved that the simplified calculation has high calculation accuracy and stability, and can meet the needs of
In this paper, a methodology integrating richness, stability, and complementarity to assess accommodable potential of solar and wind power generation was proposed and implemented in Ordos, a resource-based city in northwestern China.
Compared with the widely adopted multi-year averaging (MYA) methods, the TMY method can consider the year-to-year variations of weather conditions and characterize solar radiation under climatological weather
So, firm generation capacity (FGC) is an important indicator for measuring the stability of power generation of clean energy such as wind power, PV and hydropower. A first-order seasonal
This study aims to fill these gaps by assessing mainland China''s solar energy resources using the TMY method and China Meteorological Forcing Dataset. The results show that the data record...
Compared with the widely adopted multi-year averaging (MYA) methods, the TMY method can consider the year-to-year variations of weather conditions and characterize solar radiation under climatological weather conditions. However, there are very few TMY-based solar energy assessments on the scale of China.
A high-resolution, exhaustive assessment of the current spatiotemporal pattern of solar energy potential in China has been carried out by multiple studies, and the results indicate that solar energy resources in China are generally stable but with notable spatial heterogeneity, with western China being the most abundant and an optimal location f...
It is necessary to develop a climatological calculation method of solar radiation because of the limitation of solar radiation observations.Data of daily solar radiation and percentage of sunshine from 1961 to 2000 for 54 stations in China were used in this study to develop equations for solar radiation calculation.Empirical coefficients were fitted by using three initial values of
A slope stability calculation method is proposed based on rigid body-limit equilibrium theory that can quantify the influence of highwall mining operations on slope stability, which is significant
In addition, the annual and seasonal photovoltaic power of China is calculated, and the spatial distribution of China's solar resource utilization potential is obtained using the calculated optimum tilt angle, solar radiation data on sloped surfaces, and the photovoltaic power model.
According to the yearly temporal and spatial distribution pattern of solar energy resources depicted in Fig. S1., it is evident that the overall spatial pattern of solar energy resources in China has exhibited remarkable stability and minimal interannual fluctuations from 1981 to 2022.
Based on the prediction error analysis, we summarize two policy suggestions for China. First, the government should provide adequate policy support and incentives to encourage wind energy development in the Southwestern and Central areas of China and solar energy development in the areas of Southwest and Northwest China.
The spatial distributions of the wind and solar uncertainty across China are analyzed through the prediction error, as shown in Fig. 1a, b, respectively, excluding Taiwan, Hong Kong, and Macau, as well as wind energy in Tibet and solar energy in Chongqing (unsuitable for wind/solar energy construction 10 or data limitations).
HRI is used to measure the stability of solar energy resources by evaluating the deviation of daily solar radiation from the daily mean value of many years.
According to the historical reproducibility assessment of solar energy resources spanning from 1981 to 2022, the study reveals the presence of spatial heterogeneity and temporal variations in the instability of solar energy resources across China.
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