Electric energy is the energy that is produced due to the movement of electric charges. This type of energy uses the motion of electrons in a conductor to power devices, machinery, and systems. When moving charged particles pass through a wire or circuit, as in a power plant, battery, or solar panel, this kind of power is created and dispersed throughout residences, businesses, or electric vehicles.
Electrical energy is measured in joules (J), the standard energy unit. The kWh is the most widely used unit of measurement.
Formula to calculate electrical energy:
Electrical Energy=Power (in kW)×Time (in hours)
Therefore, a 1,000-watt (1 kW) device that operates for two hours uses:
1 kW×2 h=2 kWh
Examples of Electrical Energy
- A battery powering a remote
- Electricity is lighting up a bulb
- A charging smartphone
- Power lines delivering energy to homes
- Solar panels generate electric power
Electrical energy is potential and kinetic, depending on circumstances. The energy is potential if electric charges are stored (e.g., in a battery). The energy is kinetic if charges flow in a conductor (e.g., in a wire). Electrical energy is therefore converted from the two forms depending on whether the charges are at rest or flowing.
References
The information in this article is based on insights from respected organizations in the energy field. We have reviewed content from the following sources to ensure accuracy and relevance:
Posted by Abu Talha
With a background in science at the A-level, Abu Talha has studied subjects including physics, chemistry, mathematics, and biology. Along with his more than 1.5 years of experience in digital marketing, he is passionate about writing about electric vehicles, sustainable energy, and how emerging technologies are influencing the future.
