For the purpose of selling or purchasing electrical energy for lighting, heating or power purposes, any city, village, or public electric light and power district in this state is hereby authorized to enter into agreements to connect and interconnect its electric light and power plants, distribution system and transmission lines with the electric light and power plant, distribution system or transmission lines of any one or more other cities, villages, or public electric light and power districts in this state, upon such terms and conditions as may be agreed upon between the contracting cities, villages, and public power districts.
Neb. Rev. Stat. §§ 70-502