Which of the following is a characteristic of high-voltage transmission lines such as those operating at 500 kV?

High-voltage transmission lines, such as those operating at 500 kV, are specifically designed for efficient long-distance power transport. Operating at high voltage reduces the current that must flow through the transmission lines, which in turn minimizes energy losses due to resistance in the conductors. This makes them particularly effective for transmitting large amounts of electricity across vast distances from power generation facilities to substations.

The capacity of high-voltage lines to carry electricity over long distances is crucial for connecting remote renewable energy sources, like wind or solar farms, to population centers where the electricity is needed. Furthermore, by operating at higher voltages, these lines can deliver power more efficiently than lower voltage transmission systems, which are typically intended for local distribution rather than long-haul transport.