Concept of low-cost energy monitoring system for household application

Due to continuous development of office and household equipment, the electricity end-consumer profile has changed in latest years, and increasing number of electricity consuming equipment, makes very hard to identify real electricity consumption of each device. Long-term power consumption monitoring with existing wall plug digital power meters can be an expensive method for consumers with large number of devices. The article describes a different approach of power monitoring system that lowers the costs and price of needed metering equipment.