| Skyros | Symi | Syros | Chios | ||
| JAN | Thermal | 19.29 | 10.65 | 504.06 | 2142.63 |
| RES | 1304.54 | 1152.83 | 8364.84 | 18,530.23 | |
| FEB | Thermal | 26.07 | 15.57 | 511.30 | 2205.43 |
| RES | 1197.90 | 962.52 | 7019.94 | 15,049.81 | |
| MAR | Thermal | 37.45 | 21.81 | 620.71 | 2338.10 |
| RES | 1223.11 | 937.74 | 7025.67 | 14,918.21 | |
| APR | Thermal | 51.82 | 28.78 | 508.42 | 2076.59 |
| RES | 1049.31 | 897.79 | 6335.57 | 11,790.12 | |
| MAY | Thermal | 59.33 | 30.49 | 472.41 | 2301.05 |
| RES | 1021.19 | 993.60 | 6260.66 | 11,545.10 | |
| JUN | Thermal | 54.24 | 31.20 | 536.61 | 2133.50 |
| RES | 1220.58 | 1261.80 | 7195.06 | 13,639.65 | |
| JUL | Thermal | 59.98 | 31.76 | 860.41 | 3104.68 |
| RES | 1723.26 | 1634.98 | 8733.79 | 16,577.99 | |
| AUG | Thermal | 59.95 | 29.28 | 852.97 | 2844.79 |
| RES | 2028.79 | 2015.93 | 9825.53 | 19,195.02 | |
| SEP | Thermal | 46.79 | 24.90 | 593.92 | 2169.00 |
| RES | 1198.98 | 1429.76 | 7257.50 | 13,755.63 | |
| OCT | Thermal | 37.06 | 21.22 | 691.24 | 2269.77 |
| RES | 993.04 | 1081.96 | 6225.10 | 11,966.58 | |
| NOV | Thermal | 26.85 | 14.86 | 600.81 | 2062.42 |
| RES | 1065.20 | 883.34 | 6391.76 | 13,842.28 | |
| DEC | Thermal | 21.78 | 11.24 | 587.92 | 2395.38 |
| RES | 1228.43 | 1029.99 | 7612.93 | 17,481.04 |