| Comunidad | Capacidad | Embalsada | Variacion | ||
| Andalucia | 12030 | 5232 | (43.49%) | -82 | (-0.68%) |
| Aragon | 4707 | 3810 | (80.94%) | 55 | (1.17%) |
| Asturias | 484 | 413 | (85.33%) | 5 | (1.03%) |
| Cantabria | 575 | 439 | (76.35%) | 0 | (0.00%) |
| Castilla y Leon | 8292 | 6505 | (78.45%) | -14 | (-0.17%) |
| Castilla-La Mancha | 5797 | 2624 | (45.26%) | -8 | (-0.14%) |
| Cataluña | 1950 | 1692 | (86.77%) | 9 | (0.46%) |
| Comunidad de Madrid | 1060 | 860 | (81.13%) | -8 | (-0.75%) |
| Comunidad Valenciana | 1956 | 1214 | (62.07%) | -5 | (-0.26%) |
| Extremadura | 14219 | 6912 | (48.61%) | -174 | (-1.22%) |
| Galicia | 3220 | 2250 | (69.88%) | -40 | (-1.24%) |
| La Rioja | 190 | 141 | (73.99%) | -1 | (-0.52%) |
| Navarra | 1019 | 755 | (74.09%) | 1 | (0.10%) |
| Pais Vasco | 252 | 202 | (80.16%) | -1 | (-0.40%) |
| Region de Murcia | 148 | 51 | (34.46%) | 0 | (0.00%) |
