Transmission refers to the process of transferring energy, data, or signals from one point to another through various mediums and technologies. In the context of energy, transmission specifically involves the high-voltage transfer of electricity from power generation facilities, such as power plants or renewable energy sources, to substations and distribution networks that deliver electricity to end-users.

In telecommunications, transmission pertains to the transfer of data, voice, or video signals across networks, often utilizing fiber optics, wireless technologies, or satellite systems. The efficiency and reliability of transmission systems are essential for maintaining stable energy grids or seamless communication services.

Transmission systems are designed to minimize losses, ensure stability, and handle high-capacity demands, playing a critical role in modern infrastructure and connectivity.