Your annual electricity consumption is measured directly on the meter. This counts the number of kilowatt hours (one of the units used to measure energy) delivered to you.
Each time your meter is read, the difference between the reading displayed by the meter and that of the previous year is calculated. The result gives your annual consumption.
Electricity meter reading
January 2017: 6 234
January 2018: 9 686
Annual consumption: 9,686 – 6,234 = 3,452 kWh
If you generate renewable energy in Brussels (by means of photovoltaic panels, for instance), you have a bidirectional electronic meter known as an “A+/A- meter”. This meter can be used to display the following information, among other things:
Thanks to this system of crediting and debiting, your supplier bills you directly and only for the difference between the kilowatt hours you have received and those you have generated.
Moreover, your installation is fitted with a second, small meter known as a “Brugel meter”, which displays the total quantity of green electricity generated. It serves a twofold purpose: It is used not only to establish the output of your installation, but also to determine the number of green certificates you are entitled to.
Most homes in Brussels are fitted with an “electromechanical” model (with a small disk that can be seen and that turns). If works like a small motor: passing through two coils, the current turns a permanent magnet attached to a wheel. This drives a toothed counting mechanism. The more current goes through the coils, the faster the mechanism turns and the more consumption the meter records.
Although it is sturdy and long-lasting, this type of meter will one day be replaced by an electronic model that does not include any moving parts.
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