Carregado – Rio Maior Line is a 400kV overhead line with a length of 64km from Carregado, Alenquer, Portugal, to Rio Maior, Centro, Portugal.

Construction works on the Carregado – Rio Maior Line project was commissioned in 2017.


The Carregado – Rio Maior Line, which is an overhead line, is being operated by Rede Electrica Nacional. The Carregado – Rio Maior Line is a new line. The line carries alternating current (AC) through double circuit cable.

Carregado – Rio Maior Line project development status

The development of the Carregado – Rio Maior Line project was approved by Directorate-General for Energy and Geology and the project works were completed in 2017.

About Rede Electrica Nacional

Rede Electrica Nacional S.A. (REN), formerly Servicos de Rede, S.A., a subsidiary of Redes Energeticas Nacionais, SGPS, S.A. is an energy transmission company that offers electricity and natural gas services. The company operates through transmission of high voltage electricity and transport of high-pressure natural gas. It provides services such as storage and regasification of LNG, storage of natural gas and telecommunication services. REN provides electricity from thermoelectric and hydroelectric power stations. The company through RENTELECOM offers telecommunication services such as infrastructure, managed and consultancy services. It caters to residential and commercial customers.


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.