CEA (Companhia de Eletricidade do Amapá) reported on Thursday night (8) that the power supply was interrupted in 15 of the 16 cities in the state. The problem was caused by a failure in the transmission system that connects Macapá to the rest of the country.
They are the same cities that were affected by the November 2020 blackout after an explosion in a substation in the capital. The transmission system, which includes substations and lines, is operated by LMTE (Macapá Power Transmission Lines).
ONS (National Electric System Operator) says that the interruption occurred at 6:34 pm, dropping a load of 200 MW (megawatts). The recomposition process, according to the operator, started at 19h02. In 2020, the affected cities saw supply problems for 21 days.
In a notice, ONS stated that it will assess the causes of the occurrence with the agents involved.
In February, Aneel (National Electric Energy Agency) levied a fine of R$3.6 million to LMTE, alleging that the blackout was caused by maintenance failures at its facilities. It was the biggest fine in the agency's history, in terms of the percentage of the billing of an agent in the sector.
Translated by Kiratiana Freelon