Optimized Operation of Photovoltaic and Pumped Hydro Storage Hybrid Energy System in the Electricity Market

In smart grids, storage systems are needed to increase the number of renewable energy sources connected to distribution systems and to ensure the continuity of energy. By supporting the system elements, energy storage can provide many services such as energy time shifting, interruption control, ensuring continuity in transmission and power quality improvements. In smart grid applications, difficulties are encountered in energy storage due to various problems such as charge/discharge, safety, size and cost. For this reason, energy storage systems should be developed for energy capacity, control and protection that can increase storage performance. Since there are interruptions and waves in renewable energy sources such as wind and solar, batteries are used for storage. In order to expand the use of clean energy and to ensure energy continuity, mechanical storage methods in large powerful systems have been emphasized. Storage studies have been carried out to increase efficiency, provide flexibility in electrical systems, reduce costs and improve storage time, and reduce power fluctuations. In this study, pumped hydroelectric storage plants, which is one of the storage methods, were examined. Advantages and disadvantages of pumped storage hydroelectric system are mentioned and hybrid pumped hydro storage is explained. Its economic contribution is also briefly mentioned. This storage method of PHES has also been found to be hybrid systems that can be connected to variable speed turbines, groundwater, seawater and renewable energies to increase efficiency, reduce costs and save space. Among these systems, it has been observed that the system in which solar and wind are used as a hybrid is also advantageous in providing high profitability in the energy market. Thanks to its integration with the sun and wind, carbon emissions are reduced.

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“…If we find the maximum of the expression given in Equation 20, the time when the utility reaches the maximum surface is found. [50].…”

Section: Economic Aspects Of Pumped Storage Hydroelectric Power Plantsmentioning

confidence: 99%

An Evaluation of Pumped Hydroelectric Storage Systems

Oymak

Tür

2022

International Journal of Innovative Engineering Applications

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“…In general, the research on the hydro-PV complementary system scheduling needs further investigation. There are few studies on the long-term operation [9], and the existing studies are mostly based on deterministic historical data for scheduling, without considering the uncertainties of inflow and solar radiation [24][25][26], which are difficult to use for actual scheduling guidance. Besides, the existing researches cannot update the regulation based on the actual solar radiation and inflow [27][28].…”

Section: Introductionmentioning

confidence: 99%