The Northwest Territories Power Corporation (NTPC) was established about 1988 to acquire and operate the former Northern Canada Power Commission (NCPC) assets within the Northwest Territories which at that time also included Nunavut. 76% of NTPC's electrical generation is in the form of Hydro electricity. Hydro production has increased approximately 15% since 1990-91 reducing demand on diesel production and lower GHG emissions by 58% of 1990-91 levels.