Despite the satisfactory levels of hydroelectric reservoirs at the end of the dry season, the ONS (National System Operator) faces difficulties in meeting the load during peak hours, between 18 pm and 20 pm.
At the CMSE (Electric Sector Monitoring Committee) meeting held on Wednesday (9), the ONS pointed out the need to intensify the use of thermoelectric plants, in addition to importing energy and making operational rules more flexible, to ensure demand is met between October and December.
The CMSE recommended to the ANP (National Agency of Petroleum, Natural Gas and Biofuels) the adoption of measures that ensure a regular supply of natural gas for the generation of electricity in the SIN (National Interconnected System).
CEMADEN (National Center for Monitoring and Alerts for Natural Disasters) reported that Brazil is facing the worst drought in recent years. ONS projections demonstrate uncertainty about the start of the wet season, although some models indicate more intense rainfall from the second half of October.
“The Stored Energy (EAR) projections indicate that the Southeast/Central-West subsystem would reach, at the end of March 2025, in the most optimistic scenario, 13,8 pp above the storage verified in March 2024. In the most pessimistic scenario, the projection would be 23,4 pp below that recorded”, declared the ONS in a press release.
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ENA (Influent Natural Energy) estimates indicate values below the MLT (Long Term Average) for the period from October 2024 to March 2025. Even so, the reservoir level in September was at 49%, considered adequate for the end of the dry season.
“With the severe drought of recent months, the first rains need to initially restore soil moisture so that flow levels can subsequently recover,” explained the Operator.
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