Electric power is the rate at which electrical energy is transferred or used. It is measured in watts (W) and is typically used to power devices and machines.
Electric power is generated through various methods, including burning fossil fuels, nuclear reactions, and renewable energy sources such as wind and solar. These methods produce mechanical energy, which is then converted into electrical energy through generators.
AC (alternating current) power is the type of electricity that is used in most homes and buildings. It constantly changes direction and is more efficient for long-distance transmission. DC (direct current) power flows in only one direction and is commonly used in small electronic devices such as batteries.
Electric power is transmitted through a network of power lines and transformers. High-voltage transmission lines carry the electricity from power plants to substations, where it is then distributed to neighborhoods and homes through lower-voltage lines.
The generation of electric power can have both positive and negative environmental impacts. Fossil fuel power plants contribute to air and water pollution, while renewable energy sources have minimal environmental impacts. However, all forms of power generation require land use and can potentially have impacts on wildlife and ecosystems.