As part of this study, the energy-economic analysis of the construction of the Peruca HPP was updated, where as part of it: a) The change in the operation regime of the Peruca HPP and the way of using the Peruca reservoir is analyzed with regard to work with new aggregates. b) The expected annual production of MHE Peruca is calculated with the revised engagement regime in such a way that the water from the reservoirs is used in the most efficient way. c) The costs of investment and operation of MHP Peruca are updated, taking into account the available documentation of the main project, the expected obligations of MHP Peruca based on valid regulations and the current conditions of procurement of equipment and works. d) The economic value of the electricity produced at the Peruca HPP is determined with regard to the existing incentive system.