Carmona–Don Rodrigo and Guillena–Don Rodrigo 400 kV Transmission Lines

The project covers the repowering of two 400 kV double-circuit, duplex overhead transmission lines: the 72.3 km Guillena–Don Rodrigo line and the 41.3 km Carmona–Don Rodrigo line. The intervention includes increasing the height of selected existing towers while maintaining both the current alignment and tower locations. At four specific towers — T-88B, T-109B, T-115B and T-143B — the existing suspension strings will be replaced with suspended tension strings, allowing the conductors to be raised without increasing tower height.