# Determination of Effective Parameters for Hydropower Plants' Energy Generation: A Case Study
## 1 Introduction
It is concluded that the incorporation of climatic patterns into energy system planning is crucial, since the unpredictability of the climate may cause significant swings in the generation of renewable power. [PERSON] et al. [27] performed an investigation on the effects of variations in several climatic parameters including the precipitation, temperature, and humidity on the power generation from hydropower plants located in Turkey named Dogancay I and II. According to their study, which uses a new trend analysis method, it is revealed that precipitation, temperature, and humidity have significant effects on energy generation. [PERSON] et al. [28] present a methodology for examining the effects of climate alterations on reservoir inflows and the hydropower plants in the Daija River located in Taiwan. It was found that the potential increase in temperature, which results in an elevated demand for electricity in the summer season, could potentially affect the stability of the electricity supply due to the reduction in the generation of hydropower. As generally known, changes in precipitation have a crucial role in determining the magnitude of variations in flow rate and hydropower output; [PERSON] et al. [29] reveal the degree of possible effects of precipitation on hydropower generation. A study conducted by [PERSON] et al. [30] aimed to assess the effects of climate forecasts on the hydrological regime of the Tapajos Basin in the Amazon. An analysis was conducted to examine the effects of these alterations on the anticipated operation of a hydropower plant. The majority of predictions indicated a decline in basin discharge as a consequence of precipitation variations. In the forecasted scenarios, there was evidence to suggest that the yearly hydrological cycle is seeing an increase in the length of low discharges. The findings presented in the study are linked to an extended duration of the dry season, as predicted by the climate projections. Another projection study was performed by [PERSON] and [PERSON] [31] and revealed that the energy generation from hydropower plants decreases in nearly all projections. Besides the aforementioned studies, there are various studies on the determination of the effects on hydropower energy generation due to seasonal variabilities. For instance, while [PERSON] et al. [32] examined the influence of climate change and land use on energy generation, [PERSON] et al. [33] studied the effect of flow discharge on energy generation. As summarized, hydropower emerges as the prevailing renewable energy source, comprising a substantial share of the overall renewable energy portfolio. The generation of energy from hydropower plants is influenced by several factors and conditions, such as the specific design and geographical location of the plant, in addition to seasonal variations. The present study undertook a thorough examination of the important factors that influence the energy generation of a selected hydroelectric facility, known as the Bagisli Hydropower Plant, which is situated on the Zap River within the Dicle basin in Turkey, considering the daily data for the time interval of 2016-2019 related to flow rate, precipitation, and temperature in relation to the generation of electricity. Apart from relevant literature, as partly summarized before, this study comprehensively analyzes the mentioned effective parameters using long-term daily data to enhance the efficiency of hydropower facilities and guarantee a reliable and adequate energy supply throughout the year. Furthermore, to the best of the author's knowledge, there is no equation composed of flow rate parameters to determine the energy generation in the case of the availability of only flow rate data, while the present study proposes a correlation with acceptable accuracy.