What type of wire does the national grid use?

The national grid primarily uses high-voltage aluminum and copper wires for electricity transmission. Aluminum is favored for its lightweight and cost-effectiveness, while copper is used for its superior conductivity. The choice of wire depends on factors such as the distance of transmission, the voltage level, and the specific requirements of the power network. High-voltage transmission lines typically operate at voltages ranging from 110 kV to 765 kV.