Annual solar radiation and power generation

Can a model accurately estimate global solar radiation?

A large network of observations was used to provide forcing inputs. The newly developed empirical model can accurately estimate global solar radiation. The annual photovoltaic power exhibited a significantly declining trend. Western China is an optimal location for solar photovoltaic power plants.

How much solar power can China generate a year?

The average yearly potential for solar power generation in China from 1961 to 2016, assessed with global horizontal radiation data from the PSO-XGBoost model, reached 285.00 kWh·m −2.

Can an empirical model accurately estimate solar radiation and photovoltaic power?

Empirical models were applied to quantify solar radiation and photovoltaic power. A large network of observations was used to provide forcing inputs. The newly developed empirical model can accurately estimate global solar radiation. The annual photovoltaic power exhibited a significantly declining trend.

Where do solar radiation data come from?

The solar radiation data in Table 2. are derived from the NASA database and Meteonorm database provided by PVsyst Software, the Chinese national standard ‘Code for Design of Photovoltaic Power Station (GB 50797-2012)’ and the data of the National Meteorological Information Center of the China Meteorological Bureau [ 20 ].

What is the average solar radiation in China?

The annual mean global solar radiation in China from 1961 to 2016 was estimated at 174.36 W·m −2, with a decreasing trend of −0.83 W·m −2 ·decade −1.

What are the seasonal patterns of solar radiation?

Patterns of seasonal global solar radiation The seasonal Rs values all exhibit descending trends (Fig. 4 a, b), with changing rates of −0.02 ± 0.03 W m −2 yr −1 (p > 0.05) in spring, −0.23 ± 0.03 W m −2 yr −1, p < 0.01 (p < 0.01) in summer, −0.11 ± 0.02 W m −2 yr −1 (p < 0.01) in autumn, and −0.10 ± 0.02 W m −2 yr −1 (p < 0.01) in winter.