| Photovoltaic electric output (W/m2) | |||||||||||||||
| Month | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 13 pm | 14 pm | 15 pm | 16 pm | 17 pm | Total |
| January | 0 | 0 | 21 | 49 | 77 | 98 | 111 | 113 | 103 | 84 | 58 | 29 | 4 | 0 | 747 |
| February | 0 | 0 | 24 | 53 | 83 | 106 | 119 | 122 | 113 | 94 | 67 | 37 | 9 | 0 | 826 |
| March | 0 | 5 | 32 | 63 | 93 | 115 | 128 | 129 | 120 | 100 | 72 | 40 | 12 | 0 | 908 |
| April | 0 | 13 | 42 | 73 | 101 | 122 | 133 | 133 | 122 | 101 | 72 | 41 | 12 | 0 | 964 |
| May | 0 | 18 | 46 | 77 | 104 | 123 | 133 | 132 | 121 | 100 | 73 | 42 | 14 | 0 | 982 |
| June | 0 | 17 | 46 | 76 | 102 | 122 | 132 | 131 | 121 | 101 | 75 | 45 | 17 | 0 | 984 |
| July | 0 | 14 | 42 | 72 | 100 | 120 | 132 | 132 | 123 | 104 | 78 | 47 | 19 | 0 | 983 |
| August | 0 | 12 | 41 | 72 | 100 | 121 | 133 | 133 | 123 | 103 | 75 | 44 | 15 | 0 | 973 |
| September | 0 | 12 | 41 | 73 | 101 | 121 | 131 | 130 | 118 | 95 | 66 | 35 | 7 | 0 | 930 |
| October | 0 | 11 | 40 | 70 | 97 | 116 | 124 | 121 | 107 | 84 | 54 | 24 | 0 | 0 | 849 |
| November | 0 | 7 | 33 | 62 | 88 | 107 | 115 | 112 | 98 | 75 | 47 | 19 | 0 | 0 | 765 |
| December | 0 | 3 | 26 | 54 | 81 | 100 | 109 | 108 | 96 | 75 | 48 | 20 | 0 | 0 | 720 |