Smart System for Reducing Standby Energy Consumption in Residential Appliances

Andrei Cosmin Gheorghe, Horia Andrei, Emil Diaconu and Paul Cristian Andrei ()
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Andrei Cosmin Gheorghe: Doctoral School of Engineering Valahia, University “Valahia” of Targoviste, 130004 Targoviste, Romania
Horia Andrei: Doctoral School of Engineering Valahia, University “Valahia” of Targoviste, 130004 Targoviste, Romania
Emil Diaconu: Faculty of Electrical Engineering, Electronics and Information Technology, University “Valahia” of Targoviste, 130004 Targoviste, Romania
Paul Cristian Andrei: Faculty of Electrical Engineering, University “Politehnica” of Bucharest, 060042 Bucharest, Romania

Energies, 2024, vol. 17, issue 12, 1-20

Abstract: Residential consumption represents one of the most important percentages of total electricity consumption. A considerable number of household appliances consume energy even when they are not in operation, i.e., they are in the so-called standby state, thus producing additional costs, which become significant over time. In this context, one method to solve this problem is to develop a smart system capable of severing the power connection to devices in standby mode, thereby conserving energy and reducing the energy costs. The first step in the design of this system consists of the identification and accurate measurement of the standby state, which was carried out for three of the most common household appliances. Then, by using an ESP32 microcontroller, a system was designed to manage the operation of a relay module based on the current consumption of the connected equipment. Control over the system was achieved through a web application that works across all devices equipped with a web browser, offering functionalities to adjust current value time delays and to manually switch the system on or off. Finally, the deployment of this system across the three appliances studied led to a reduction in the energy consumption in standby mode of 26.68 kWh per month.

Keywords: residential equipment; standby power consumption; ESP32 system; web application; wireless (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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