| Comunidad | Capacidad | Embalsada | Variacion | ||
| Andalucia | 12030 | 4252 | (35.34%) | -81 | (-0.67%) |
| Aragon | 4489 | 3112 | (69.33%) | -83 | (-1.85%) |
| Asturias | 484 | 348 | (71.90%) | -11 | (-2.27%) |
| Cantabria | 575 | 300 | (52.17%) | -17 | (-2.96%) |
| Castilla y Leon | 8292 | 5110 | (61.62%) | -154 | (-1.86%) |
| Castilla-La Mancha | 5797 | 2003 | (34.55%) | -30 | (-0.52%) |
| Cataluña | 1950 | 1468 | (75.28%) | -32 | (-1.64%) |
| Comunidad de Madrid | 1060 | 696 | (65.66%) | -13 | (-1.23%) |
| Comunidad Valenciana | 1956 | 974 | (49.80%) | -16 | (-0.82%) |
| Extremadura | 14219 | 5877 | (41.33%) | -131 | (-0.92%) |
| Galicia | 3220 | 2040 | (63.35%) | -94 | (-2.92%) |
| La Rioja | 136 | 64 | (47.06%) | -4 | (-2.94%) |
| Navarra | 1014 | 431 | (42.50%) | -36 | (-3.55%) |
| Pais Vasco | 252 | 167 | (66.27%) | -3 | (-1.19%) |
| Region de Murcia | 148 | 50 | (33.78%) | -3 | (-2.03%) |
