Remarkably higher expected shares of variable renewable energy sources for electricity generation (RES-Electricity) than those available today will be a great challenge for the European power system. Bulk electricity storage technologies— that is, pumped hydro energy storage—are considered a key component while facing these future challenges. The conducted analysis is based on the modeling resu...

energy is considered as an important input for agricultural products. a decrease in energy subsidy and its demand reduces agricultural outputs and raises the production costs. changes in production and costs may significantly affect welfare of the agricultural producers. the main objective of this study was to analyze the impact of increased energy prices (reduction in the subsidy) on the agric...

Main objectives of the paper were to examine the complementary nature of solar and wind energy in primary and in “useful” form. Analyses are performed on real, measured solar and wind potential data at the same site. Solar irradiation and wind power density have been assessed as primary forms. In order to examine effects of their complementarity in real applications, i.e. in power systems, a hy...

Many renewable energy resources like windturbines or solar collectors are volatile and unstable. Distributed energy producing entities are clustered to virtual power plants that – from a black-box perspective – should act like conventional stable power plants. It is the task of intelligent control strategies to compensate fluctuations and to exploit renewable recourses to a maximal extend. In t...

in this paper, we are going to improve the energy efficiency of an industrial c 3 mr base load lng plant by changing its refrigerant components and its mole fractions in liquefaction and subcooling cycles based on the cooling curves generated in the main liquefaction and subcooling heat exchangers. later on, selection features of the elements will be discussed. first, non-optimized c 3 mr plant...

This study presents an optimal framework for the operation of integrated energy systems using demand response programs. The main goal of integrated energy systems is to optimally supply various demands using different energy carriers such as electricity, heating, and cooling. Considering the power market price, this work investigates the effects of multiple energy storage devices and demand res...