The 110kV project is intended to reinforce power supply in the country's north.
The concession contract is valued at nearly US$200mn.
Two gas to power projects for a combined 1GW are behind schedule, according to the government.
The current contract for the use of the giant dam on the Brazil-Paraguay border ends in 2023.
The government is ratcheting up plans to boost natural gas supply amid rising demand from thermoelectric power generators.
360 Energy has completed two wind farms, Genneia is seeking wholesale market access for generation plant, and construction of a wind farm in Chubut is advancing.