FRATEL DAM |
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| PURPOSE - Hydroelectric | |
| LOCATION | GENERAL FEATURES |
| District -
Portalegre Municipality - Nisa Site - Amieira River Basin - Tejo River - Tejo river |
Promoting entity
- CPPE, Cª. Portuguesa de Produção de Electricidade, SA Owner (RSB) - CPPE Engineering by - Hidro-Eléctrica do Zêzere Construction by - SOMAGUE Year of completion - 1973 |
| HYDROLOGY | RESERVOIR |
| River basin area - 60000 km2 | Reservoir area -
10000 x 1000m2 Gross capacity - 92500 x 1000m3 Effective storage - 21000 x 1000m3 Normal water level (NWL) - 74 m Maximum flood level (MFL) - 76 m Minimum operating level - 71 m |
| DAM | |
| Concrete - Gravity
dam Height above foundation - 48 m Height above streambed - 43 m Crest elevation - 87 m Crest length - 240 m Foundation - Schist and greywacke Volume of dam body - 124 x 1000 m3 |
|
| SPILLWAY | |
| Location - Dam
body Control type - Controlled Spillway type - Over dam body Sill elevation - 57 m Sill length - 6x18,75=112,5 m Gates - 6 radial gates Maximum discharge capacity - 16500 m3/s Energy dissipation - Stilling basin |
|
| POWER PLANT | |
| Type - Contiguous
to dam Number of installed units - 3 Type of units - Kaplan Power installed capacity - 130 MW Mean annual energy output - 347,5 GWh |
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