Baixo nível de reservatórios pode acarretar em ‘dificuldade’ no fornecimento de energia em todo o país


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Postado em 2 de dezembro de 2020 às 10:25


Operador Nacional do Sistema (ONS) fez alerta em carta enviada na semana passada à Agência Nacional de Energia Elétrica (Aneel): condições hidrológicas para dezembro são ‘desfavoráveis’.

Em carta enviada à Agência Nacional de Energia Elétrica (Aneel) na semana passada, o Operador Nacional do Sistema Elétrico (ONS) aponta preocupação com o abastecimento de energia elétrica no país.

No documento, obtido pela TV Globo, o órgão prevê “dificuldade no atendimento eletroenergético, pelo menos até o final deste ano” em razão do baixo nível dos reservatórios.

O documento embasou a decisão da Aneel de autorizar cobrança extra na conta de luz dos consumidores a partir desta terça-feira (1º).

Em 26 de maio, a Aneel havia anunciado que não haveria esse tipo de cobrança até 31 de dezembro deste ano, em razão da pandemia do novo coronavírus.

O nível dos reservatórios do subsistema Sudeste/Centro-Oeste — responsável pela geração de cerca de 70% da energia consumida no país — está em 17,72% e do subsistema Sul em 18,25% da capacidade total. Além disso, de acordo com o ONS, as condições hidrológicas para o mês de dezembro são “desfavoráveis”.

Importação e acionamento das térmicas

O ONS diz que a situação crítica nos dois subsistemas persiste mesmo com as medidas já adotadas pelo Comitê de Monitoramento do Setor Elétrico (CMSE).

Em outubro, o comitê autorizou o acionamento de usinas térmicas, cuja energia é mais cara, e a importação de energia da Argentina e do Uruguai.

Por essa razão, o ONS julga necessário o acompanhamento da evolução das condições hidroenergéticas no decorrer do mês de dezembro e considera importante a avaliação “por parte do CMSE da adoção de medidas adicionais visando a garantia do atendimento eletroenergético do SIN [Sistema Interligado Nacional] neste horizonte, bem como no início do ano de 2021”.

Na última sexta-feira, o CMSE realizou uma reunião extraordinária e decidiu propor o acionamento de térmicas que utilizam gás natural liquefeito — que precisam ser acionadas com 60 dias de antecedência — e a flexibilização de restrições hidráulicas das usinas hidrelétricas da bacia do São Francisco, de Ilha Solteira e de Três Irmãos.

O ONS avalia ainda no documento que, em outubro, a chamada Energia Natural Afluente, que mede a capacidade de geração da energia a partir da vazão de água de uma bacia para um reservatório, atingiu o mais baixo patamar dos últimos 90 anos. Em novembro, apresentou o segundo pior desempenho no mesmo período.

“Essa situação de afluências críticas vem acarretando um acentuado esvaziamento dos principais reservatórios do SIN, através da qual é possível verificar a deterioração das condições de armazenamento dos principais reservatórios de usinas que compõem os subsistemas Sudeste/Centro-Oeste e Sul”, diz o órgão.

Fonte G1

The Human Security – (THSI) is a prominent Islamabad-based think-tank dedicated to advancing human security across all levels.
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The Human Security Institute (THSI) is a pioneering research, advocacy, and capacity building organization dedicated to addressing the complex and interrelated threats to human well-being in the 21st century. Founded on the principles of promoting freedom from fear, freedom from want, and freedom to live with dignity, THSI focuses on a holistic approach to security that encompasses economic, food, health, environmental, personal, community, and political dimensions


Through innovative research, evidence-based policy recommendations, and robust community engagement, THSI Pakistan works to tackle pressing issues such as poverty, health disparities, environmental degradation, and social injustice. By partnering with likeminded-partners we strive to implement sustainable solutions that enhance well-being and resilience.

 

THSI Pakistan is dedicated to empowering individuals, fostering inclusive development, and advocating for policies that protect and uplift the most vulnerable. Together, we aim to build a future where security is understood not merely as the absence of conflict, but as the presence of opportunity, equity, and dignity for all.

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