Analysis of economic efficiency of wind farm and photovoltaic installation operation in a cable pooling system in Poland

Abstract: Wind farms and photovoltaic installations aligns with the concept of distributed energy sources. For many years, the "Achilles' heel" of implementing such investments was obtaining the ability to connect to the power grid. One issue raised by operators was the actual level of usage of the granted connection capacity by users. To truly enhance efficiency through the idea of combining wind and photovoltaic sources into a single connection, the concept of cable pooling emerged. To verify the validity of this assumption, it became necessary to study the cooperation of these generating units over time. The purpose of this study is to evaluate the profitability of projects implemented in a shared connection arrangement using cable pooling. The article employs the NPV method (Net Present Value) and IRR(Internal Rate of Return) to assess investment efficiency.The source data representing national generation from wind sources and photovoltaic installations were obtained from the Transmission System Operator. Structured into time series, they can be considered exemplary, representing the dynamics of variability in generation from these types of generating sources in the Polish geographic area. Key words: cable pooling, economic efficiency, wind farm, photovoltaic installation.