Impacto econômico do deplecionamento de reservatórios de regularização de centrais hidrelétricas nos usos múltiplos de suas águas: uma proposta metodológica

Abstract

After publishing the law 9.433/97 which establishes the national politic for hydraulic resources, the electric sector has lost the full control in operating its reservoirs, being now responsibility of Water National Agency together with National System Operator regarding operating directions. This Agency’s main attribution is to guarantee water multiple use and therefore must be the moderating agent for eventual conflictive interests involving the water of hydraulic power reservoirs. With the purpose of clarifying this point, this study intends to show a calculation method in order to calculate the relevant impacts that emptying of a reservoir may cause to several users. This method elaborates equations that relates emptying of a regulatory reservoir with benefit or incremental economic loss that any specific activity using directly water may suffer. This study allows bordering districts to reinforce future damage complains due to losses caused by reservoir emptying. In other hand, energy generation companies may also use this study as an instrument able to define limits of a regulatory reservoir emptying without losses for both parties.