A truly-omnidirectional, single-axis wind turbine especially suitable for apartment buildings facing chaotic winds in urban environments. O-Wind takes advantage of horizontal AND vertical winds without requiring steering. Apartment dwellers could efficiently, effectively and sustainably generate electricity and independently make use of feed-in tariffs in nearly 80 countries. The O-Wind, due to its unique design, makes use of wind approaching from all directions in 3 dimensions including wind in the vertical direction. This is not the case for other wind turbines in the market, with VAWT’s being multidirectional only in the horizontal plane. The simplistic design and use of a single axis of rotation mean that no steering is involved, hence requiring less maintenance than traditional wind turbines.