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 paper, the authors examined the feasibility of four hybrid power generation systems applied to cover the demand of a typical off-grid residence for a 20-year period, accounting to different geographical areas in Greece with diverse solar and aeolic profile.
Abstract: Demand of electricity is rising all over the world, both in developing and developed countries due to escalation in world population and economic growth. The exploitation of renewable energy is imperative to mitigate energy crisis and to avoid the environmental downfall. The stochastic nature of many renewable energy sources sets techno-economic and functional limitations in their application for covering most types of energy needs. These limitations can be surmounted if a renewable and a conventional energy source are combined to formulate a hybrid generation power system. This paper examines the techno-economic feasibility of four hybrid power generation systems applied to cover the demand of a typical off-grid residence for a 20 years period. Each one of these hybrid power solutions should involve at least one renewable energy source technology and be able to cover all load needs. Four applications are investigated for each hybrid system, accounting to different geographical areas in Greece with diverse solar and aeolic profile. A comparative analysis is followed to set off the optimal solution based on a minimal total cost criterion.
56 citations
TL;DR: The potential for using PV is huge, and can be estimated in tens to hundreds of MWp in the Amazon region alone, even if only a fraction of the existing Diesel-fired plants with a total installed capacity of over 620 MVA would fit to run in an optimum Diesel/PV mix as discussed by the authors.
56 citations
TL;DR: In this article, the authors investigated the reduction ways of the electricity demand for Engineering Faculty at Mu'tah University were investigated, and the use of the available resources efficiently and effectively to reduce energy bill is one way to reduce the energy consumption as well as the electricity generation.
55 citations
01 Jan 2002
TL;DR: In this article, the authors developed a new planning tool to support large scale wind power integration into the electrical energy supply system, the Wind Power Management System WPMS, which provides the current level of wind power generation (onlinemonitoring) as well as the short-term prediction from 1 hour up to 72 hours.
Abstract: Normally, electrical systems are able to absorb a certain amount of unregulated and fluctuating production from renewable energy sources (RES), especially wind power. The electrical systems must be designed and operated in order to accommodate the changes in the consumption, a trip of a conventional production unit or a fault on a transmission line. For systems with a high penetration of wind power, the most significant difference is that in addition to forecasts of the consumption, predictions are also to be prepared of the unregulated wind power production. Such predictions are necessary both for the TSO and for the players on the power market that owns significant wind power production sites as well. At the end of 2002, more than 13,500 Wind Turbines (WTs) with an installed capacity of 11,850 MW generated approx. 17,300 GWh and supplied about 3.6 % of the German electricity consumption in 2002 [1]. Wind-generated power now provides a noticeable percentage of the total electrical power consumed, and also exceeds the base load on the network in some utility areas. This indicates that wind is becoming a significant factor in electricity supply, and in balancing consumer demand with power production. Not least in the grid areas of the German TSO’s E.ON Netz and Vattenfall Europe Transmission GmbH more than 100 % of the electricity consumption at times has been covered by wind power. A well-established and scientific analysis of the time response of wind power as well as the accurate determination of the current and expected wind power will lead to an improved integration of wind generation into the electrical power system and reduce CO2 emissions sustainable. In frame of governmental and EC funded projects and in co-operation with the German TSO’s E.ON Netz, RWE Net and Vattenfall Europe Transmission, ISET developed a new planning tool to support large scale wind power integration into the electrical energy supply system – the Wind Power Management System WPMS. WPMS provides the current level of wind power generation (onlinemonitoring) as well as the short-term prediction from 1 hour up to 72 hours.
55 citations
TL;DR: In this article, an energy dispatch model is developed in HOMER to determine the cost of electricity, considering the heat rates of power plants in calculating the costs of electricity under different regulatory frameworks of natural gas with various prices of battery components.
55 citations