| 优化方式 | 年型 | 发电量最大 | 保证率最高 | ||
| 年均发电(亿kW·h) | 保证率(%) | 年均发电(亿kW·h) | 保证率(%) | ||
| 长系列 | 丰 | 33.19 | 89.76 | 32.77 | 91.15 |
| 平 | 27.63 | 79.57 | 27.02 | 84.33 | |
| 枯 | 21.18 | 65.66 | 20.98 | 72.66 | |
| 合计 | 26.24 | 76.15 | 25.84 | 81.06 | |
| 考虑年径流分类 | 丰 | 33.62 (1.30%) | 93.53 (4.20%) | 33.22 (1.37%) | 96.50 (5.87%) |
| 平 | 27.83 (0.72%) | 81.95 (2.99%) | 27.59 (2.11%) | 86.45 (2.51%) | |
| 枯 | 21.22 (0.19%) | 69.88 (6.42%) | 21.09 (0.52%) | 72.88 (0.30%) | |
| 合计 | 26.43 (0.71%) | 79.62 (4.56%) | 26.20 (1.37%) | 83.14 (2.57%) | |