Venezuela's state power company Corpoelec has brought back online unit 8 of the Tacoa extension plant at the 1.2GW Josefa Joaquina Sánchez Bastidas thermo complex in Vargas state that supplies capital Caracas.
The 350MW unit had been offline since May 25 following a failure in the steam generator.
During the downtime, workers carried out maintenance work, Corpoelec said in a statement.
In related news, the national public prosecution office accused two Corpoelec workers of causing blackouts in five states following an investigation requested by the national intelligence service (Sebin), state news service AVN reported.
The workers, who are responsible for monitoring and maintaining transmission lines, allegedly failed to carry out necessary work to prevent the failure of lines on May 9. The outages affected Guárico, Yaracuy and Mérida states; the El Tablazo petrochemical complex; the Planta Centro thermo; and the Josefa Camejo thermo in Falcón state.
The prosecutor's office has summoned Aguilar Cáceres and Peña Páez to court on June 7.
Corpoelec has blamed acts of sabotage and theft for service problems, while experts highlight the grid's outdated infrastructure and lack of proper maintenance.