Seasonal reservoir management in hydro dominant power systems to enhance availability

This paper presents reliability evaluation techniques and models for a hydro dominant system using analytical methods. Generation adequacy evaluation is done using the IEEE reliability test system modeled as a hydro dominant system, taking into account energy storage limitations of hydro plants. Seasonal analysis of storage type hydro is performed to save and have less water spillage when water inflow is high, and use it to supply load in dry months when water inflow is low and system is not capable to supply load. Studies represented in this paper specifically utilize different operating policies to save and transfer energy from wet season to dry season, and analyze its reliability benefits.