Question

1. an advantage associated with the darrieus rotor is that it ______. uses one vane can utilize low wind speeds is not expensive to build does not have to store electricity

Explanation:

The Darrieus rotor (a vertical-axis wind turbine) has a simpler structural design compared to many horizontal-axis turbines, making its construction relatively low-cost. It uses multiple curved vanes, struggles with low wind speeds (needs higher speeds to start rotating), and like all wind turbines, still requires energy storage if power is needed when wind is not available, eliminating the other options.

Answer:

O is not expensive to build