| Cuenca | Porcentaje agua embalsada |
|---|---|
| Todos los embalses | |
| Galicia Costa | 84% |
| Norte I | 83% |
| Norte II | 84% |
| Norte III | 85% |
| C. I. Del País Vasco | 85% |
| Duero | 77% |
| Tajo | 66% |
| Guadiana | 65% |
| C. Atl. Andaluza | 63% |
| Guadalquivir | 58% |
| C. Med. Andaluza | 57% |
| Segura | 56% |
| Júcar | 54% |
| Ebro | 57% |
| C. Interna De Cataluña | 58% |
| Por cordilleras | ![]() | ![]() |
|---|---|---|
| Otras pistas | ||
| Cordillera Cantábrica | 0 | 5 |
| Pirineo Aragonés | 0 | 5 |
| Sistema Central | 0 | 3 |
| Pirineo Catalán | 0 | 9 |
| Sistema Ibérico | 0 | 3 |
| Sistema Penibético | 0 | 2 |