| Comunidad | Capacidad | Embalsada | Variacion | ||
| Andalucia | 12035 | 5250 | (43.62%) | -153 | (-1.27%) |
| Aragon | 4489 | 2495 | (55.58%) | -153 | (-3.41%) |
| Asturias | 484 | 368 | (76.03%) | -5 | (-1.03%) |
| Cantabria | 575 | 380 | (66.09%) | -21 | (-3.65%) |
| Castilla y Leon | 8292 | 4277 | (51.58%) | -160 | (-1.93%) |
| Castilla-La Mancha | 5753 | 1668 | (28.99%) | -50 | (-0.87%) |
| Cataluña | 1950 | 1269 | (65.08%) | -43 | (-2.21%) |
| Comunidad de Madrid | 1060 | 594 | (56.04%) | -11 | (-1.04%) |
| Comunidad Valenciana | 2447 | 749 | (30.61%) | -13 | (-0.53%) |
| Extremadura | 14219 | 6097 | (42.88%) | -126 | (-0.89%) |
| Galicia | 3220 | 2282 | (70.87%) | -15 | (-0.47%) |
| La Rioja | 136 | 64 | (47.06%) | -6 | (-4.41%) |
| Navarra | 1014 | 523 | (51.58%) | -32 | (-3.16%) |
| Pais Vasco | 252 | 191 | (75.79%) | -1 | (-0.40%) |
| Region de Murcia | 148 | 28 | (18.92%) | 0 | (0.00%) |
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