Crestuma–Lever Dam
Dam in municipality Vila Nova de Gaia, Porto District
From Wikipedia, the free encyclopedia
Crestuma–Lever Dam (Portuguese: Barragem de Crestuma-Lever) is a concrete gravity dam on the Douro. It is located in the municipality Vila Nova de Gaia, in Porto District, Portugal.
| Crestuma–Lever Dam | |
|---|---|
Upstream face of the dam and retained lake | |
  Crestuma–Lever Dam Location within Portugal | |
| Official name | Barragem de Crestuma-Lever |
| Country | Portugal |
| Location | municipality Vila Nova de Gaia, Porto District |
| Coordinates | 41°4′21.9″N 8°29′10.8″W |
| Purpose | Power |
| Status | Operational |
| Construction began | 1976 |
| Opening date | 1985 |
| Owner | Companhia Portuguesa de Produção de Electricidade |
| Operator | Energias de Portugal |
| Dam and spillways | |
| Type of dam | Concrete gravity dam |
| Impounds | Douro |
| Height (foundation) | 25.5 m (84 ft) |
| Length | 470 m (1,540 ft) |
| Elevation at crest | 25.5 m (84 ft) |
| Width (crest) | 8.2 m (27 ft) |
| Dam volume | 205,000 m3 (7,200,000 cu ft) |
| Spillway type | Dam body |
| Spillway capacity | 26,000 m3/s (920,000 cu ft/s) |
| Reservoir | |
| Total capacity | 110,000,000 m3 (89,000 acre⋅ft) |
| Active capacity | 22,500,000 m3 (18,200 acre⋅ft) |
| Surface area | 12.98 km2 (5.01 mi2) |
| Normal elevation | 13 m (43 ft) |
| Power Station | |
| Operator | Energias de Portugal |
| Commission date | 1985 |
| Hydraulic head | 12.6 m (41 ft) (max) |
| Turbines | 3 x 39 MW Kaplan-type |
| Installed capacity | 117 MW |
| Annual generation | 360 GWh |
Construction of the dam began in 1976. The dam was completed in 1985. It is owned by Companhia Portuguesa de Produção de Electricidade (CPPE).[1]
Dam
Reservoir
Power plant
The run-of-the-river hydroelectric power plant was commissioned in 1985[2][5][6] (1986).[3][4] It is operated by EDP. The plant has a nameplate capacity of 117[2][3] (105[4][5] or 108[1][6]) MW. Its average annual generation is 360[2] (311,[3] 363,[5] 366.9,[1][6] or 399[4]) GWh.
The power station contains 3 Kaplan turbine-generators (horizontal axis) with 39 (36[6]) MW (36.1 MVA) each in a dam powerhouse located on the left side of the dam. The turbine rotation is 83.3 rpm. The minimum hydraulic head is 6.8 m, the maximum 12.6 m. Maximum flow per turbine is 450 m³/s.[2]
