When would DC transmission typically be utilized?

DC transmission is typically utilized for long-distance transmission due to its ability to minimize power losses over vast distances. Unlike alternating current (AC), direct current (DC) does not suffer from reactive power losses, which can occur when transmitting AC over long runs. This efficiency in power transmission makes it suitable for connecting remote renewable energy sources, such as wind farms or solar arrays, to populated areas that require electricity.

In addition to reduced losses, DC transmission allows for better control of power flow. This can be especially important in large interconnected grids where managing energy distribution and maintaining stability is critical. Furthermore, it simplifies infrastructure in certain situations, such as when connecting asynchronous grids that operate at different frequencies.

This approach is not limited to underground transmission as it can also be deployed over overhead lines, hence choices suggesting exclusivity to underground or short-distance applications do not accurately reflect the robust use of DC transmission in long-haul scenarios. Additionally, while safety protocols may play a role in choosing transmission methods, it is not the primary reason for utilizing DC in long-distance applications.