The linear move (sometimes called a lateral move) irrigation system is built the same way as a center pivot, having moving towers and spans of pipe connecting the towers. The main difference is that all the towers move at the same speed and in the same direction. Water is pumped into one of the ends or into the center. Due to the lateral movement, powering a linear with electricity is difficult. Usually, a diesel motor with a generator is mounted on the main drive tower and supplies the power needed to operate the irrigation system. The primary advantage of the linear move is that it can irrigate rectangular fields up to a mile in length and a half mile in width. Due to the high capital investment, linear moves are used on high-value crops such as potatoes, vegetables and turf. (Scherer 2010)