Solar Usage Offset | Number of days when solar panels produce less than the energy used | Maximum consecutive days with energy deficit from solar panels | Battery capacity needed for 10 - 12 year life without using gas generator in kWh | Number of days when gasoline generator is needed (towards end of battery life) |
120% | 111 | 9 | 180 | 46 |
140% | 55 | 5 | 133 | 22 |
160% | 47 | 4 | 120 | 18 |
180% | 39 | 4 | 106 | 15 |
200% | 29 | 3 | 92 | 11 |
220% | 26 | 3 | 84 | 6 |
240% | 23 | 3 | 83 | 5 |
260% | 19 | 2 | 82 | 4 |
280% | 15 | 2 | 81 | 3 |
300% | 14 | 2 | 79 | 3 |