Assis – Londrina Line is a 500kV overhead line with a length of 123km from Assis, Sao Paulo, Brazil, to Londrina, Parana, Brazil.

Construction works on the Assis – Londrina Line started in 2016 and the project was commissioned in 2017.


The Assis – Londrina Line, which is an overhead line, is being operated by Operador Nacional do Sistema Eletrico. The Assis – Londrina Line is a new line. The line carries alternating current (AC) through single circuit cable.

Assis – Londrina Line project development status

The development of the Assis – Londrina Line project was approved by Ministry of Mines and Energy, Brazil in 2016 and the project works were completed in 2017.

About Operador Nacional do Sistema Eletrico

Operador Nacional do Sistema Eletrico (ONS) is a non-profit civil association. The company is engaged in coordinating and monitoring of transmission, generation and distribution of electric power in National Interconnected System (NIS). It perform its operation under the supervision and regulation of the Electric Energy National Agency (ANEEL). ONS is headquartered in Brazil.


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.