Invenergy and New Mexico Renewable Energy Transmission Authority (RETA), an independent state authority, are entering into agreement to jointly develop a $2bn power line capable of moving 4GW of solar and wind energy within the US desert Southwest.

The future public-private partnership’s proposed 644km (400-mile) high-voltage direct current (HVDC) conduit called North Path will help to unlock a share of what RETA has estimated is $11bn in untapped renewable energy investment potential in the state.

The line will originate in northeastern New Mexico adjacent to Oklahoma and Texas, collecting power from multiple future renewable energy projects.