Investment Decision of Households in Distributed Energy Resources with regard to Price Degression of PV and Battery Systems

Abstract

Due to the continuous expansion of decentralized power generation systems, the public power supply is more and more being relocated from the transmission to the distribution grids. A main driver for this transformation is the investment of the industry, agriculture and especially of private households in distributed energy resources. These decisions are influenced by political and economic conditions.Hence, the aim of this paper is to develop a model, which depicts the individual investment decisions regarding the purchase of decentralized energy resources. The determination of the optimal investment portfolio of a self-optimizing investor is based on the individual’s cost-optimal power supply.Exemplary results depict the influence of regulatory restrictions on the investment decision. Furthermore, based on a parameter variation, correlations between the investment in photovoltaics and energy storage systems are investigated.