Topic
Stand-alone power system
About: Stand-alone power system is a research topic. Over the lifetime, 8650 publications have been published within this topic receiving 192397 citations. The topic is also known as: Stand-alone photovoltaic power system.
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TL;DR: In this article, the authors used a techno-economic optimization model of a household system and endogenously dimensioned the photovoltaic (PV) system and stationary battery storage (SBS) to find positive net present values (NPV) for PV systems of approximately 500-1,800EUR/kWp and NPV for SBS of approx. 150-500EUR /kWh.
109 citations
TL;DR: In this paper, an agent-based appliance-level stochastic model is used to simulate the electricity demand of an average U.S. household and determine the economic viability for a range of traditional and advanced storage technologies as well as their optimum storage capacities.
108 citations
TL;DR: In this article, a statistical approach is used in the design of a battery-supercapacitor energy storage system for a wind farm, which exploits the technical merits of the two energy storage mediums, in terms of the differences in their specific power and energy densities, and their ability to accommodate different rates of change in the charging/discharging powers.
Abstract: A statistical approach is used in the design of a battery-supercapacitor energy storage system for a wind farm. The design exploits the technical merits of the two energy storage mediums, in terms of the differences in their specific power and energy densities, and their ability to accommodate different rates of change in the charging/discharging powers. By treating the input wind power as random and using a proposed coordinated power flows control strategy for the battery and the supercapacitor, the approach evaluates the energy storage capacities, the corresponding expected life cycle cost/year of the storage mediums, and the expected cost/year of unmet power dispatch. A computational procedure is then developed for the design of a least-cost/year hybrid energy storage system to realize wind power dispatch at a specified confidence level.
108 citations
25 Jul 2010
TL;DR: Simulation results show, that the proposed optimal operation strategy for a battery energy storage system (BESS) in relation to the real-time electricity price in order to achieve the maximum profits of the BESS.
Abstract: Since the hourly spot market price is available one day ahead, the price could be transferred to the consumers and they may have some motivations to install an energy storage system in order to save their energy costs. This paper presents an optimal operation strategy for a battery energy storage system (BESS) in relation to the real-time electricity price in order to achieve the maximum profits of the BESS. The western Danish power system, which is currently the grid area in the world that has the largest share of wind power in its generation profiles and may represent the future of electricity markets in some ways, is chosen as the studied power system in this paper. Two kinds of BESS, based on polysulfide-bromine (PSB) and vanadium redox (VRB) battery technologies, are studies in the paper. Simulation results show, that the proposed optimal operation strategy is an effective measure to achieve maximum profits of the BESS. The results also show that it will take longer time to return the original investment of the VRB battery. So the PSB battery is the better investment choice for the time being.
108 citations
TL;DR: In this article, a study about a hybrid solution including a large scale energy storage system coupled with power generation and fast responding energy storage systems is presented, which can deliver the energy previously stored by using an air liquefaction process either with or without the contribution of additional energy from combustion.
108 citations