A favorable wet period and successful coordination of hydroelectric reservoirs led by the ONS (National System Operator) allowed the EAR (Stored Energy) reached, at the end of March, the highest level in 16 years at SIN (National Interconnected System), with the Southeast/Central-West at 83,1%, the subsystem responsible for 70% of the country's hydropower.
The data was presented by the ONS during the March ordinary meeting of the CMSE (Electricity Sector Monitoring Committee).
In March, the turnout exceeded 100% of the MLT (Long Term Average) in three subsystems: Southeast/Mid-West (102% of the MLT), North (103% of the MLT) and South (114% of the MLT).
Only the Northeast showed different behavior, with 55% of MLT. Over the last six months, SIN has had above-average turnout in October 2022 (116% of MLT), January 2023 (117% of MLT) and February 2023 (101% of MLT).
Projections for the next six months point to a favorable outlook, as a good recovery has been recorded in the SIN's main reservoirs. Water levels are favorable until the next wet period, which begins in November, assesses the ONS.
The Southeast/Mid-West Stored Energy projections for September 2023 are 82,6%, in the most positive scenario, and 76,4%, in the lower limit. The results indicate that on September 30, the SIN will have levels varying between 74,8% and 81,1%.
In both cases, the shorter-term outlook is also positive, with indications that April will end with the EAR at the highest percentages in the last 11 years.
The ENA (Influent Natural Energy) indices for the period from April to September 2023 show that SIN inflows can vary between 80% and 106% of the MLT. If confirmed, upper boundary conditions will rank among the best in the last 12 years.
