Storage battery
The kWh: The Unit of Energy
The kWh, or kilowatt-hour, is simply a way to measure energy. Think of it like an invisible tank: each kWh represents a certain amount of electricity that you can use or store.
For example:
- A 100 W light bulb running for 10 hours consumes 1 kWh.
- A 50 kWh electric car battery can store enough energy to travel several hundred kilometers. (Cantonal Energy and Environment Services)
The kWh isn’t just for cars or appliances: it’s used to measure all forms of energy. Whether it’s electricity, batteries, or even some sources of heat, the kWh helps us understand how much energy is being used or is available. (voe.ch)
In short: every kWh counts. It’s the unit that helps us understand, store, and use energy efficiently—whether for a battery, an appliance, or an electric vehicle.