Patent ID: 8545168

Claim:
A two-column arrangement of turbines, each column including clockwise rotating turbines and counter-clockwise rotating turbines, each column having a crosswind spacing from the other column and defining a first or second column centerline, a same crosswind distance across the column centerline from one side of the column centerline to another side of the column centerline, and a same downwind spacing along the column, the two-column arrangement comprising: first column turbines comprising clockwise rotating first column turbines and counterclockwise rotating first column turbines, and second column turbines comprising clockwise rotating second column turbines and counterclockwise rotating second column turbines, wherein all the clockwise rotating first column turbines and all the counterclockwise rotating first column turbines are located on opposite sides of the first column centerline at half crosswind distance from the first column centerline; all the clockwise rotating second column turbines and all the counterclockwise rotating second column turbines are located on opposite sides of the second column centerline at half crosswind distance from the second column centerline; the clockwise rotating first column turbines are spaced from each other by the downwind spacing; the counterclockwise rotating first column turbines are spaced from each other by the downwind spacing; the clockwise rotating second column turbines are spaced from each other by the downwind spacing; the counterclockwise rotating second column turbines are spaced from each other by the downwind spacing; the clockwise rotating first column turbines are downwind staggered with respect to the counterclockwise rotating first column turbines by half crosswind spacing; and the clockwise rotating second column turbines are downwind staggered with respect to the counterclockwise rotating second column turbines by half crosswind spacing.