Eficiência da operação do reservatório Epitácio Pessoa no contexto da alocação negociada de água e da transposição do rio São Francisco.

Abstract

Negotiated water allocation is an essential tool to assist in decision-making and in resolving conflicts generated by water scarcity. This study analyzed the behavior of the Epitácio Pessoa reservoir over 132 months of operation, applying the negotiated water allocation methodology proposed by the National Water Agency (ANA). Two management scenarios were evaluated: one without the contribution of water from the São Francisco River Integration Project (PISF) and another with an increase of 0.97 m³/s. The performance of the reservoir and the allocations was assessed through efficiency indicators based on Vieira (1996) and adapted by Farias et al. (2017). The results showed that, although the transposition waters increased water availability, they were insufficient to meet all demands throughout the analyzed period, highlighting the need for adjustments in operational rules and more efficient demand management.