These are “ice banks.” Actually there are 6 ice banks on this trailer. These machines make ice at night, which is then used the following day to cool a building. Ice Bank energy storage tanks store renewable energy, like wind and or inexpensive clean efficient night-time electricity, in the form of ice for comfort cooling use during peak demand periods the next day. Reducing the peak daytime demand for electricity can cut cooling costs 20-40%, source energy and emissions are reduced and construction of new power plants and transmission lines can be delayed or eliminated. These machines are shipped all over the world. This particular load weighs 12K lbs. and had to be tarped.