Power & Energy Meters
The goal of any energy management system is to be able to perform the same function with less energy. Energy efficiency is the ratio between energy consumed and energy produced. Effective monitoring and metering produces critical information about how a system is performing, so that immediate improvements can be made. There are two main types of meters that handle different types of data: Energy meters and power meters. Energy meters measure kilowatt-hour (kWh) and feature an optimal communication output. They are used for basic energy measurement. Power meters measure active and reactive energy consumption.
Power and energy meters measure, collect and deliver data from distribution points across an entire electrical network. Automatic, continuous metering systems use dynamic displays and dashboards to display energy consumption and operation information. This real-time information can show simple load control, alarms or recommendations for corrective action. Three types of metering to be considered are: direct metering, indirect metering and hours counters. Direct metering measures direct consumption, like electric power meters, oil meters, heat meters and gas meters. Indirect metering depends on equipment data that can evolve or change with time and would need to be checked regularly. Hours counters measure consumption based on the number of operating hours of constant-power loads, like fans or lighting.
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