## 9/24/2020
### Wind Energy Extraction
__Rotating lift-based machines__
Horizontal axis wind turbine, Darrieus turbine, vertical axis wind turbine with blades,
__Rotating drag-based machines__
Vertical axis turbines - similar to cup anemometer; Savonius (efficiency 10%-15%) could be nice for aesthetically pleasing turbine
__Flying lift-based machines__
pulls up sail that pulls on a cord that spins spindel
__Machines using flow-induced vibrations__
### Financing