Оптимизация затрат на электроснабжение предприятия ООО «Промэнерго» при помощи системы накопления энергии

Abstract

A key prerequisite for the development of a new electric power industry in Russia is a qualitative change in consumer behavior in the retail sector. For Russian industrial consumers costs of paying for consumed electricity and power during peak hours are quite high. Therefore, they have all reasons to install energy storage devices to reduce those costs. The main mechanisms for cost reducing in this case are the price arbitrage and peak shaving. The price arbitrage means buying electricity during low price hours. The peak shaving means reducing the maximum power during certain hours. We examined a low-power industrial enterprise that purchases electric energy from a supplier at third price category. When consumer uses third price category the overall payment to power supply company consists of bill for electricity and bill for power capacity. The price for electricity varies for each hour of the day. While the price for power capacity is constant during the day the value of power capacity is measured during certain hours. Commercial operator sets the measuring hour for each day of the month. The study considered installation of storage units with power capacity of 10 and 19 kW, energy capacity of 40 and 79 kWh respectively at industrial enterprise. We forecasted the payback of those systems based on the current and forecasted prices for electricity, capacity and lithium-ion batteries in the Republic of Tatarstan. Calculations showed that installation of a storage device at an industrial consumer sight may be economically feasible in the conditions of the Republic of Tatarstan today.