Figure 8.22 Tide turbineSMALL-SCALE HYDROELECTRIC
Small-scale hydropower utilizes small turbines connected to generators
submerged in streams to generate power. Generally, the capacity of small-scale
hydropower is 100 kW or less (enough power for one thousand 100-watt
lightbulbs). This technology does not impede stream navigation or fish
movement. This technology is especially attractive in remote areas where power
lines are not available. Several factors are considered when installing small-scale
hydropower:
■ The amount of water flow available on a consistent basis
■ The amount of drop (head) the water has between the intake and the
output of the system
■ Regulatory issues, such as water rights and easements