Aadrii Limited Heating System is a joint-venture district heating system owned equally by the Gwich'in Development Corporation and NWT Power Corporation. The system provides space heating to several customers in the community of Fort McPherson. Heat for the system is obtained by capturing residual heat from the NWT Power Corporation's diesel-electric power plant. Due to the availability of other forms of heating fuel in Fort McPherson , customers on the district heating system can choose to heat their buildings with other forms of energy such as heating oil. As a result, the PUB takes a "light-handed" approach to Aadrii Limited by regulating on a complaints-basis only.