Plains – Eastern Clean Line is a 600kV overhead line with a length of 1126.5km from Plains, Oklahoma, US, to Eastern Clean, Tennessee, US.

The project, which is currently in the planning stage, is expected to be commissioned in 2021.


Plains – Eastern Clean Line is an overhead line that will be operated by Clean Line Energy Partners. The line will carry direct current (AC) through double circuit cable.

The development of the Plains – Eastern Clean Line project has been approved by the Oklahoma Corporation Commission.

Plains – Eastern Clean Line project development status

The construction works on the Plains – Eastern Clean Line project commissioning is expected in 2021.


All publicly-announced T&D Line & Substation projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects is sourced through secondary information sources such as country specific utility players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.