Lanzada Aqueduct Power Plant

Hydroelectric power station installed on a section of an existing municipal aqueduct with the surge tank at 1,517 m.a.s.l. and the restitution point of the turbine feedwater at 1,117 m.a.s.l., which taps into the waters of the spring called “Brusada” in the municipal territory of Lanzada in the Province of Sondrio.

The intervention saw the implementation of a new surge tank near Brusada, which serves to collect the waters from the two existing springs at 1,531 m.a.s.l. and 1,549 m.a.s.l. The power station was constructed entirely in reinforced concrete and is mostly underground.

The conduits of the existing municipal aqueduct were removed as they were not suitable to support the new operating pressures. A new pipeline was laid with a nominal diameter of 150 mm, connected without an extension from the new surge tank to the production station. Suitable anchoring blocks were implemented along the penstock in the break points.

The main station was constructed above the existing tank of the municipal aqueduct, located in the town of Campei at 1,117 m.a.s.l. A new volume with a machine room was added, which houses the generator turbine group and the electrical equipment, such as tranformers and electric panels. The measuring room and the Enel room were created next to the existing volume.

The main station was conceived and designed to be inserted harmoniously in the surrounding context. The new volume assumes the aspect of a typical rural building in Valmalenco, characterized by a stone and wooden wall and covered in slate tiles. The turbine waterfeed flows back into the surge tank, therefore returned to the municipal aqueduct network.

The contract involves all the phases of the preliminary/definitive/executive design, as well as the supervision and accounting of the job, with the exception of the aspects relative to the dimensioning of the electromechanical works.