| Comunidad | Capacidad | Embalsada | Variacion | ||
| Alava | 223 | 165 | (73.99%) | 1 | (0.45%) |
| Albacete | 727 | 270 | (37.14%) | 6 | (0.83%) |
| Alicante | 315 | 121 | (38.41%) | 6 | (1.90%) |
| Almeria | 224 | 30 | (13.39%) | 0 | (0.00%) |
| Asturias | 484 | 346 | (71.49%) | -12 | (-2.48%) |
| Avila | 290 | 107 | (36.90%) | -1 | (-0.34%) |
| Badajoz | 7592 | 3027 | (39.87%) | 4 | (0.05%) |
| Barcelona | 274 | 211 | (77.01%) | 4 | (1.46%) |
| Burgos | 139 | 113 | (81.29%) | 1 | (0.72%) |
| Caceres | 6627 | 3970 | (59.91%) | 29 | (0.44%) |
| Cadiz | 1821 | 897 | (49.26%) | 0 | (0.00%) |
| Cantabria | 575 | 428 | (74.43%) | 1 | (0.17%) |
| Castellon | 221 | 102 | (46.15%) | 1 | (0.45%) |
| Ciudad Real | 510 | 199 | (39.02%) | 0 | (0.00%) |
| Cordoba | 3411 | 1297 | (38.02%) | 7 | (0.21%) |
| Cuenca | 1134 | 424 | (37.39%) | 5 | (0.44%) |
| Girona | 294 | 196 | (66.67%) | -4 | (-1.36%) |
| Granada | 1181 | 610 | (51.65%) | 2 | (0.17%) |
| Guadalajara | 2975 | 843 | (28.34%) | 5 | (0.17%) |
| Guipuzcoa | 29 | 26 | (89.66%) | 0 | (0.00%) |
| Huelva | 1508 | 818 | (54.24%) | -21 | (-1.39%) |
| Huesca | 2401 | 1776 | (73.97%) | -2 | (-0.08%) |
| Jaen | 2327 | 1086 | (46.67%) | 2 | (0.09%) |
| La Coruña | 359 | 303 | (84.40%) | 21 | (5.85%) |
| La Rioja | 136 | 95 | (69.85%) | 1 | (0.74%) |
| Leon | 1772 | 1420 | (80.14%) | -3 | (-0.17%) |
| Lleida | 1145 | 914 | (79.83%) | -21 | (-1.83%) |
| Lugo | 895 | 688 | (76.87%) | 2 | (0.22%) |
| Madrid | 1060 | 649 | (61.23%) | 6 | (0.57%) |
| Malaga | 616 | 347 | (56.33%) | 0 | (0.00%) |
| Murcia | 148 | 61 | (41.22%) | 0 | (0.00%) |
| Navarra | 1014 | 774 | (76.33%) | -8 | (-0.79%) |
| Orense | 1603 | 1326 | (82.72%) | -7 | (-0.44%) |
| Palencia | 488 | 357 | (73.16%) | 3 | (0.61%) |
| Pontevedra | 363 | 307 | (84.57%) | 5 | (1.38%) |
| Salamanca | 3482 | 2145 | (61.60%) | 16 | (0.46%) |
| Segovia | 81 | 62 | (76.17%) | 0 | (0.00%) |
| Sevilla | 942 | 571 | (60.62%) | 0 | (0.00%) |
| Soria | 267 | 205 | (76.78%) | -1 | (-0.37%) |
| Tarragona | 237 | 206 | (86.92%) | -9 | (-3.80%) |
| Teruel | 183 | 110 | (60.11%) | 0 | (0.00%) |
| Toledo | 451 | 203 | (45.01%) | -2 | (-0.44%) |
| Valencia | 1420 | 607 | (42.75%) | 13 | (0.92%) |
| Valladolid | 6 | 6 | (100.00%) | 0 | (0.00%) |
| Zamora | 1767 | 1436 | (81.27%) | -81 | (-4.58%) |
| Zaragoza | 1905 | 1530 | (80.31%) | -65 | (-3.41%) |
