Analysis of the Effectiveness of Installing Electric Power Storage Systems in Managing Electricity Demand

This article discusses the problem of inefficient installation of electrical storage devices for managing daily load schedules. Due to the long payback period of these devices, an analysis was carried out to determine their effectiveness in managing electricity demand. The initial data included load schedules for an apartment building with a peak power consumption of 800 kW. As a result, dependencies were built for the payback periods of devices in their daily use for load balancing and ensuring system reliability, as well as combined applications. The study also showed that daily load balancing is ineffective, and using a storage device to ensure system reliability is advisable only if the service is provided for at least 15 days. The shortest payback period was achieved with the combined use of the device for a month, and the payback period was 34 % less than with the daily alignment of the schedule.