Figure 8.19 Energy efficiency of various methods that produce
electricity
PROS
■ All electrical needs of the United States could be met by wind in North
Dakota, South Dakota, and Texas.
■ Wind farms can be built quickly and can also be built out on sea
platforms.
■ Maintenance is low, and wind farms are automated.
■ Moderate to high net-energy yield.
■ No pollution. Wind farms are in remote areas so noise pollution is
minimal to humans.
■ The land underneath wind turbines can be used for agriculture (multiple-
use).
■ Destruction and changes in the natural habitat are minimal.
