About Units

Tons of refrigeration: A ton of refrigeration (RT) is a unit of power used to describe the heat-extraction capacity of air conditioning and refrigeration equipment. One ton of refrigeration is equal to the rate of heat transfer needed to freeze 1 ton (2000 pounds) of water at 0°C in 24 hours, equivalent to 12,000 BTU per hour or approximately 3.517 kilowatts.

Megawatt: The megawatt (MW) is a unit of power equal to one million watts. Megawatts are often used to measure the output of power plants or the amount of electricity required by large facilities. For example, a large wind turbine can produce up to 2 megawatts of power.