Chespi hydropower ( Ecuador ) | Studio Pietrangeli

Rio Guayllabamba - Ecuador

Hidroequinoccio HEQ S.A.

2009 - 2012

Chespi is the first hydroelectric project of the Guayllabamba cascade with an installed power of 468 MW.

Reservoir (V = 2.3 Mm³)
Arch dam (H = 68 m, L_crest = 144 m, V = 45'000 m³)
Headrace tunnel (L = 18.3 Km, D = 5.4 m)
Tailrace tunnel (L = 6.3 Km, D = 6.4 m)
Surge Shaft (H = 123 m, D = 15 m)
Penstock (L = 1'000 m, D = 4-3.4 m)
Underground power house (No. 4 Pelton turbines, IP = 117 MW each)

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