Table 4: Reservoir and hydrology
Reservoir and Hydrology |
Dimension/Quantity |
Unit |
Catchment Area |
30,390 |
km2 |
Mean Annual Rainfall |
850 |
mm |
Mean Annual Inflow |
3,750 |
Mm3 |
10 year return peak flood |
1,940 |
m3 |
Maximum Normal Operating Level |
1140 |
m |
Minimum Operating Level |
1096 |
m |
Total Storage (@ EL. 1140) |
9,310 |
Mm3 |
Active Storage |
5,343 |
Mm3 |
Spillway Capacity (4 LLO Radial Gates @ EL. 1140) |
4,416 |
m3/sec |
Estimated Reservoir Annual Evaporation Losses |
1,921 |
mm |
Firm Annual Energy |
981 |
GWh/yr |
Average Annual Generation |
1,393 |
GWh/yr |
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