Committee limits thermal shipments after tank levels improve

With an improvement in the water that arrives at the reservoirs, the Electricity Sector Monitoring Committee caps thermal shipments. Photo: Marcello Casal Jr / AgĂȘncia Brasil

During the first meeting in 2022, the Electricity Sector Monitoring Committee (CMSE) decided to limit additional shipments to serve the National Interconnected Network (SIN). As decided by the collegiate, the total thermoelectric production of the plants dispatched by the manager of the national grid must not exceed 15,000 MW on average, limited to thermoelectric plants with a unit variable cost of up to R $ 1,000 / MWh. In the event of a recognized systemic need or exceptions, the cap increases up to a CVU value of up to R $ 1,500 / MWh.

The cap aims to “prioritize energy optimization at lower total operating costs” according to the CMSE. The Committee notes that the decision may be revised to control the conditions of service.

According to the ONS, it is possible to say that “the recovery of the reservoirs of the hydroelectric power stations is in progress”. The rains observed in December 2021 contributed to the increase in influxes, with a record above the historical average in the North-East and North regions. In terms of storage, we note an increase in levels in all subsystems – except the South – compared to the end of November 2021.

Storage projections until June 2022 are significant advances in the reserve. The Southeast / Midwest subsystem storage is forecast to be approximately 47.1%, 18 percentage points above the level verified a year earlier, given the repeat of the verified critical precipitation scenario. during the previous rainy season, from 2020/2021. Data from January 11 shows the region’s reservoirs at 33.56% of capacity.

Even with the onset of the rainy season in October (as expected), expressive volumes of precipitation in several states, and the cap established for thermal power generation, there is no expectation that the tariff flag says of scarcity. water is removed from bills before the original deadline. This Wednesday (12), the National Electric Energy Agency reinforced that the flag in force for most consumers, until April, will not change. The surcharge of R $ 14.20 per 100 kWh consumed was created in August to cover the costs of the vast thermal shipment, triggered to prevent the accelerated emptying of hydroelectric reservoirs, dehydrated by the worst influx in 91 years. Regardless of the decrease in the use of energy produced in thermal power plants to meet demand, the cost of 2021 has yet to be covered.

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