| Pantano | Capacidad | Embalsada | Variación |
| Albiña [+] | 5 | 3 | 0 |
| Ibai-Eder [+] | 11 | 9 | -1 |
|
|
8 | 7 | 0 |
|
|
146 | 121 | -2 |
| Urkulu [+] | 10 | 9 | 0 |
|
|
72 | 57 | -1 |