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Chilean solar plant offline for two months following cyberattack

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Chilean solar plant offline for two months following cyberattack

The 103 MW Huatacondo solar plant and its 98 MW/312 MWh battery energy storage system (BESS), located in Chile’s Tarapacá region, have remained out of service for two months following a cyberattack. The Chilean National Electricity Coordinator’s daily report for Oct. 27 lists both facilities as subject to forced disconnection, with 0% availability. The report continues to cite an incident reported on Aug. 27 under forced disconnection request SDCF 2025.1000.

The incident was recorded on Aug. 27 at 1:10 p.m., when the RNE control center requested the forced disconnection of the solar plant and its battery storage system. The reported cause was a “cyberattack on the Huatacondo facilities,” which left both installations disconnected from Chile’s National Electric System (SEN).

At the same time, RNE requested the forced disconnection of the 220/23 kV TR1 transformer at the Santa Rita substation, also citing a cyberattack, according to SDCF request 2026100746.

The same daily report records two other incidents attributed to cyberattacks. At 9:30 p.m., the Espinos (Power) control center reported that the Olivos and Espinos thermal power plants, located in Los Vilos in the Coquimbo region, were unavailable for dispatch following the loss of monitoring and remote-control capabilities.

The report does not establish whether these incidents were related to the earlier incident at Huatacondo or resulted from the same attack.

, with a 60% stake; Shikoku Electric Power, previously reported as holding 30%; and France’s Eiffage, with 10%.



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