| Comunidad | Capacidad | Embalsada | Variacion | ||
| Andalucia | 12035 | 4722 | (39.24%) | -49 | (-0.41%) |
| Aragon | 4489 | 1976 | (44.02%) | -70 | (-1.56%) |
| Asturias | 484 | 290 | (59.92%) | -10 | (-2.07%) |
| Cantabria | 575 | 272 | (47.30%) | -14 | (-2.43%) |
| Castilla y Leon | 8292 | 3350 | (40.40%) | -62 | (-0.75%) |
| Castilla-La Mancha | 5753 | 1534 | (26.66%) | -9 | (-0.16%) |
| Cataluña | 1950 | 1045 | (53.59%) | -13 | (-0.67%) |
| Comunidad de Madrid | 1060 | 512 | (48.30%) | -12 | (-1.13%) |
| Comunidad Valenciana | 2447 | 711 | (29.06%) | -3 | (-0.12%) |
| Extremadura | 14219 | 5369 | (37.76%) | -8 | (-0.06%) |
| Galicia | 3220 | 1991 | (61.83%) | -35 | (-1.09%) |
| La Rioja | 136 | 43 | (31.62%) | -2 | (-1.47%) |
| Navarra | 1014 | 311 | (30.67%) | -20 | (-1.97%) |
| Pais Vasco | 252 | 155 | (61.51%) | -3 | (-1.19%) |
| Region de Murcia | 148 | 65 | (43.92%) | 0 | (0.00%) |
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