• This small box supposedly optimises solar power usage

    Background information

    by Martin Jungfer

Energy monitors

Energy monitors serve as a critical tool in managing and understanding electricity consumption for both residential and commercial settings. Customers interested in such products are typically environmentally conscious, aiming to reduce their carbon footprint, or seeking to monitor and lower their energy bills. By keeping track of energy usage in real-time or over a period, these devices empower users to make informed decisions about their energy consumption, identify energy-intensive appliances, and optimize the usage patterns in their daily lives.

There are two primary subtypes in the category of energy monitors: Energy meters and operating hours counters. Energy meters are designed to measure the total energy consumption of an establishment or appliance in kilowatt-hours (kWh), the standard unit of measurement for electricity. Operating hours counters, on the other hand, are specifically constructed to record the duration that a piece of equipment has been active, providing valuable data for maintenance schedules and usage patterns.

When choosing an energy monitor, an important property to consider is the measurement module, typically expressed in kWh, which indicates the precision and range of energy consumption that can be recorded. Customers should select a monitor that aligns with their intended use—whether for a comprehensive view of household energy use, or for tracking the operation of specific equipment.

In the marketplace, leading brands like Voltcraft, Steffen, Shelly, Eltako, and Brennenstuhl offer top-notch energy monitors. Voltcraft's top-selling SEM6000 CH is celebrated for its smart monitoring capabilities, while Steffen’s digital brilliant is well liked for its user-friendly interface. Shelly's Pro 3EM-120 is admired for its multi-circuit monitoring, Eltako's Energy meter is trusted for its robust design and accuracy, and Brennenstuhl's Primera-Line PM 231 E is favored for its ease of use and clear display. Each brand and product brings its distinctive attributes to the table, catering to a variety of needs and preferences for both domestic and commercial users.