The company will design, supply, install and commission the SVC unit in Sao Luis, boosting electricity supply through existing 230kV transmission lines to improve voltage control and 500kV system performance during contingencies.

The new SVC unit will also control the previously installed SVC at the Sao Luís II substation, and the new project is expected to be completed by 2012.

ABB has previously supplied flexible AC transmission systems (FACTS) technology to Electronorte and is also currently executing the Vilhena SVC project.