Why are electrical wires taken underground for the first few kilometers from hydroelectric turbines?

Electrical wires are taken underground for the first few kilometers from hydroelectric turbines primarily for safety and reliability. This underground placement protects the cables from environmental factors such as weather, falling trees, and wildlife interference, which can cause outages or damage. Additionally, burying the wires minimizes visual impact and reduces the risk of accidents in populated areas. Finally, underground lines can also help maintain a more stable temperature, enhancing the efficiency of power transmission.