Discover the meaning of the most used energy-related terms to better understand how Smarty+ allows you to optimise your consumption and participate in the energy transition.
Energy / Final energy
Expressed in kWh and measured by the electricity meter, it is the energy consumed by the end user, whether he is a private person, a company or a community.
Examples of energy consumption:
- A 50 m² flat inhabited by 2 people (without heat pump and e-car) consumes about 2000-3000 kWh per year.
- A 100 m² house inhabited by 4 people (without heat pump and e-car) consumes about 4000-6000 kWh per year.
Power / Nominal power
This is the power that a consumer must receive to function normally. It is expressed in watts (W) or kilowatts (kW). For example, the higher the power rating of a light bulb, the brighter it will shine.
Examples of power ratings of electrical appliances:
Electricity consumption index
The index is a series of numbers that represent the amount of energy (kWh) you have consumed, similar to the way your car’s odometer works. It is transmitted to your energy supplier in order to establish the amount of your electricity bill. Water and gas meters also have an index representing your various consumption levels.
Electrical voltage, expressed in Volts (V), is the difference in electrical potential that exists between two points in an electrical circuit. The notion of electrical voltage can be understood by analogy with the difference in altitude between two points A and B. If we imagine a river, and the altitudes A and B are equal, there will be no current. In the same way, there is no electric current without voltage, i.e. without a difference in electric potential between the terminals of a battery, for example.
Electric current is used to power household appliances, but also for lighting and heating. It is the movement of electrons within a conductive material, such as an electric wire. The more electrons move per second, the stronger the current. The intensity of the electric current is measured in Amperes (A).
Electrical connection power
This is the maximum power your electricity meter can deliver to supply your electric devices. Your electricity subscription is adapted to the power you need to operate your electrical appliances. If the required power of your simultaneously active devices exceeds your electrical connection power, your meter will trip.