Impact of weather variation on solar power generation
El Rached, Hadi (2026)
Kandidaatintyö
2026
School of Energy Systems, Sähkötekniikka
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2026042433570
https://urn.fi/URN:NBN:fi-fe2026042433570
Tiivistelmä
In this research effort we investigate how changes in the weather affect the electricity produced by Photovoltaic systems. We also investigate how different environmental conditions may or may not be influencing overall PV performance. Because solar electricity depends so heavily on meteorologic variables like solar irradiance, ambient temperature, and seasonality; we use hourly weather data from 2010 and 2020 to assess these effects on PV generated electricity.
We have used graphical analysis to explore many important aspects of our data including the relationship between solar irradiance and electric power output and the effects of temperature on PV efficiencies. We examine both diurnal and seasonal variations in energy generation as well as trends in electric power output over time.
Our results indicate that increased levels of solar irradiance produce greater amounts of electrical energy than do lower levels. Conversely, increased temperatures result in decreased PV efficiencies. Also, due to the inherent variability associated with climate; there were large seasonal differences in PV generated electrical energy. Specifically, summer months had significantly larger quantities of electrical energy generated then did the winter months. Our results clearly illustrate why it is very important to utilize weather forecasts in order to optimize the operation of solar systems.
This research provides additional information about the relationship between weather and the amount of electrical energy produced by Photovoltaic systems. These new insights will help us develop methods for designing, forecasting and planning solar-generated electricity in areas where the climate varies.
We have used graphical analysis to explore many important aspects of our data including the relationship between solar irradiance and electric power output and the effects of temperature on PV efficiencies. We examine both diurnal and seasonal variations in energy generation as well as trends in electric power output over time.
Our results indicate that increased levels of solar irradiance produce greater amounts of electrical energy than do lower levels. Conversely, increased temperatures result in decreased PV efficiencies. Also, due to the inherent variability associated with climate; there were large seasonal differences in PV generated electrical energy. Specifically, summer months had significantly larger quantities of electrical energy generated then did the winter months. Our results clearly illustrate why it is very important to utilize weather forecasts in order to optimize the operation of solar systems.
This research provides additional information about the relationship between weather and the amount of electrical energy produced by Photovoltaic systems. These new insights will help us develop methods for designing, forecasting and planning solar-generated electricity in areas where the climate varies.