Energy measurement (or rather energy consumption measurement) deals with the most accurate metrological observation and analysis of the energy consumption or energy demand of a system.
What are the goals of energy measurement?
The primary goal of energy measurement is to achieve energy savings in view of the ever-increasing energy costs and efficiency improvements in the context of energy monitoring and energy management. Troubleshooting is another reason for measuring energy. Continuous residual current monitoring can, for example, detect and localize leakage currents and insulation faults in technical systems. Checking and visualizing flow rates, temperature curves and pressure differences of media in cooling and heating circuits can also be part of an energy measurement.
The measurement of energy consumption
Depending on the type of energy (electricity, heat, etc.), different measuring devices and measuring methods are used for energy measurement. In the case of electricity, an electricity meter (kilowatt-hour meter, energy meter) can be used to directly measure the total energy supplied from the utility grid. Mobile electricity meters can be used for measuring samples from individual devices. These are inserted between the socket and the plug of the device.
How do I calculate the energy consumption myself?
In order to calculate the energy consumption of an electrical device, you only need to know the power of the device (in watts). This is multiplied by the runtime (in hours). The result (in watt-hours) is then divided by 1,000 to obtain the power consumption in kilowatt-hours.
A practical example: A desk lamp with 10 watts is operated for 5 hours. Calculation: 15 W x 5 h = 75 Wh : 1,000 = 0.075 kWh
A smart meter is one of the intelligent metering systems for energy consumption. In addition to the digital electricity meter, it also contains an interface for data transmission of the measurements to a collection point. This enables a clear visualization of all individual energy consumptions in the company or at home every second.
What is energy?
With the term energy, originating from the Greek and translated as “acting force”, we understand the ability to perform work, to emit heat or to radiate light. If we apply this definition to everyday situations, it means that we need energy to transport things from one place to another, to operate the heating system in the house or to supply the soccer stadiums with sufficient light.« Zurück zum Glossar Index