New methodology for network charge calculation in Slovenia: Case study for balcony solar power plant and battery storage system
S. Seme(1,2), J. Počivalnik(1), D. Kuhar(1), E. Simonič(1), K. Sredenšek(1,2) 1. Faculty of Energy Technology, University of Maribor. Hočevarjev trg 1, 8270 Krško, Slovenia 2. Faculty of Electrical Engineering and Computer Science, University of Maribor. Koroška cesta 46, 2000 Maribor, Slovenia 2025-07-25

Abstract

This paper aims to examine a new methodology for calculating network charges in Slovenia, using the example of an apartment with and without a balcony solar power plant and an energy storage system. A balcony solar power plant is defined as a plug-in generation unit installed on a balcony or another suitable surface. It is connected solely to the internal electrical installation of a household consumer. Since changes to the calculation of network charges were introduced by the new network tariff model in Slovenia, an analysis of costs and the viability of investing in a balcony solar power plant and an energy storage system was conducted. Annual electricity costs were analyzed based on 15-minute data on household electricity consumption and electricity generation from the balcony solar power plant. The feasibility of investing in a balcony solar power plant was also assessed, considering the new methodology for network charge calculation.

Key words: network charge, electricity consumption, balcony solar power plant, battery storage system, and investment.

References

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