|
| Head | Flow | Scale | Reliability/ Durability |
| Overshot | Small | Medium to high | Pico to small | Good |
| Undershot | Very small | Medium to high | Pico to micro | Good |
| Pelton | Medium to high | Low to medium | Micro to large | Good |
| Turgo | Small to high | Low to medium | Pico to large | Good |
| Crossflow | Small to medium | High | Micro to medium | Good |