Energimonitorer

Energimonitorer are devices or systems that measure, record, and present information about electrical energy use in buildings. They are commonly used in homes, offices, and industrial facilities to understand consumption patterns, identify savings opportunities, and support energy-management programs.

They typically provide real-time measurements such as active power (kW), energy consumption (kWh) over time, voltage, current, and sometimes power factor and harmonic distortion. Some models offer submetering to distinguish usage by circuit or appliance, while others provide whole-building measurements.

Most energimonitorer rely on sensors such as current transformers or shunt resistors to sense electrical current, plus a processing unit to compute metrics and a communication module to export data. Data can be displayed on a local screen or transmitted to a smartphone, tablet, or cloud service via Wi-Fi, Bluetooth, Zigbee, or cellular networks. Interoperability may be achieved through standard data formats or APIs, enabling integration with home-automation or building-management systems.

Applications include monitoring and benchmarking energy use, auditing efficiency, verifying demand-response participation, and guiding behavioral changes or equipment upgrades. In larger facilities, energimonitorer are often part of a broader energy-management system or connected to a smart meter and building-management system (BMS).

Considerations when selecting an energimonitor include accuracy, installation requirements, compatibility with existing electrical panels, data privacy, and cost. The market comprises standalone plug-in meters, inline panel monitors, and per-appliance devices, as well as integrated solutions offered by utilities and smart-home platforms.