In the area of Energy, OSSA works in the construction of underground works in projects for hydroelectric power plants; large-scale caverns to house generators; shafts for pressure pipes and accesses; and conduits, diversions and restorations.

In the past several years, OSSA has participated in the construction of seven underground hydroelectric power plants. Some of these have been the most important in Europe, such as the hydroelectric facility at Cortes-La Muela in Valencia, Spain, with 630 MW of power.

The complete satisfaction felt by our clients means we are considered one of the leaders in executing underground works of this type, participating from the desing stages, design and method statements.