Power plants experience distinct dynamic behaviors according to the primary source of energy. Whereas thermal power plants have a slow dynamic, modern renewables such as wind and solar PV are subject to very fast variations, due to environmental factors. Therefore, their availability is not guaranteed. Consequently, it is opportune to take advantage of the intrinsic flexibility of hydropower pl...

The article describes the possibility of using method least squares (LSM) to predict production electricity per day by hydroelectric power plants in energy system Uzbekistan. There are obtained predictive equations and coefficients approximating functions necessary for forming these LSM. presented forecasting analyses comparing polynomial highest degree

Population growth, increasing energy demand and the depletion of fossil fuel reserves necessitate a search for sustainable alternatives for electricity generation. Hydropower could replace a large part of the contribution of gas and oil to the present energy mix. However, previous high-resolution estimates of hydropower potential have been local, and have yet to be applied on a global scale. Th...

The Middle Iskar cascade is situated along the middle course of the Iskar River (Bulgaria) after the capital city Sofia and has three small hydroelectric power plants that were put into operation by the end of 2012. The aim of this study was to evaluate the self-purification potential of water in the reservoirs of these plants as an important and necessary condition for their ecological functio...

Hydroelectric power plants’ operational decisions are associated with several factors, such as generation planning, water availability and dam safety. One major challenge is to control the spillage from reservoir. Although this action represents a loss of energy production, it powerful strategy regulate reservoir level, ensuring dam’s The decision use must be made in advance based on level dema...

UNLABELLED The study area in Rondônia was the site of extensive malaria epidemic outbreaks in the 19(th) and 20(th) centuries related to environmental impacts, with large immigration flows. The present work analyzes the transmission dynamics of malaria in these areas to propose measures for avoiding epidemic outbreaks due to the construction of two Hydroelectric Power Plants. A population based...

Maintenance plays a crucial role in the availability of an asset. In particular, when company’s assets are decentralized, logistical aspects directly impact maintenance management and, consequently, productivity. energy generation sector, this scenario is common enterprises and projects which distributed resources (DERs), such as small hydroelectric power plants (SHPPs), considered. Hence, obje...

Failure to adequately define or understand the use of storage water in hydroelectric system has created a fragmented economic environment and schizophrenia in the industry that has the potential to limit its development as a global industry. This paper suggests that, by redefining the use of storage of water in hydroelectric system as a means of using a decision support system to obtain the eff...