New construction of small hydropower plant Sigirino / Switzerland

High head power plant at the drinking water aqueduct Crana-Origlio with reservoir, penstock and power house with access road. The reservoir collects the spring water at an altitude of 1'006.20 m a.s.l. The spring water is fed to the power house via an underground penstock DN 350/400.

Données principales

  • Reservoir at 1'006.20 m a.s.l.
  • Dimension
    • L = 10.65 m
    • B = 7.50 m
  • Penstock cast iron
    • Ø = DN 350/400
    • LTot = 1'723 m
  • Power house 520 m a.s.l.
    • QA = 0.2 m3/s
    • HN = 475.50 m
    • PA = 0.8 MW
  • Horizontal Pelton turbine, 2 nozzles
    • PN = 0.84 MW
    • QN = 0.20 m3/s
    • n = 1000 U/min
  • Synchronous generator
    • S = 1.0 MVA
    • n = 1000 U/min
  • Transformer
    • PTR = 1.25 MVA

Maître d'ouvrage

Aziende Industriali di Lugano (AIL) SA

Ingénieurs du projet

IM Maggia Engineering Ltd, Locarno

Période

2012–2015

Coûts de construction

CHF 7.8 Mio.

Prestations

Preliminary design, final design, tendering, construction design, construction supervision, commissioning.