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Solar Energy and Storage – Energy System Analysis on the use of energy storage coupled with solar technologies

机译：太阳能储存耦合的太阳能和储存 - 能源系统分析与太阳能技术相结合

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In countries with higher solar radiation compared to Europe, e.g. countries in Middle East and North Africa (MENA), solar technologies have become very competitive to other sources due to the falling costs. Some of these countries initiated national action plans to install high shares of photovolataics (PV) in relatively short time period, which consequently leads to integration challenges. Increasing share of renewable energy requires strategies to deal with highly fluctuating feed-in from renewables and subsequently novel operational strategies for the total system. Grid reinforcement and balancing of the fluctuating renewable resources are key topics. This paper analyses the role of solar technologies and their interaction with energy storage to flatten or shift the electricity generation by using a fundamental electricity system modelling (ENTIGRIS, www.entigris.org). The capacity expansion and dispatch model is used to analyse the role of energy storage (chemical or thermal) in combination with PV or concentrated solar power (CSP). The analysis shows that battery prices have to be at the range of (50-100 $/kWh) to be considered as an option for storage coupled with PV in an optimized least-cost system of about 30-35% shares of renewables. If energy storage is required in an energy system, CSP coupled with a thermal storage proves to be a cheaper solution in the energy mix. The economic analysis also provides insight of the operation strategies of these energy storages.
机译：与欧洲相比，太阳辐射较高的国家，例如，由于成本下降，中东地区和北非（MENA），太阳能技术对其他来源具有非常竞争力的国家。其中一些国家启动了国家行动计划在相对较短的时间内在相对较短的时间内安装高股票的光伏（PV），因此导致整合挑战。可再生能源的份额增加需要策略来处理可再生能源的高度波动，并随后为总系统进行新的操作策略。波动可再生资源的电网加固和平衡是关键主题。本文分析了太阳能技术的作用及其与储能的互动，通过使用基本电力系统建模（Entigris，www.entigris.org）来压平或移动发电。容量扩展和调度模型用于分析能量存储（化学或热）与PV或浓缩太阳能（CSP）的作用。分析表明，电池价格必须在（50-100美元/千瓦时）的范围内被视为与PV的储存选择，以优化的最低成本系统为约30-35％的可再生能源。如果在能量系统中需要储能，则CSP与热存储器耦合的CSP被证明是能量混合中的更便宜的解决方案。经济分析还提供了对这些能源议案的运作策略的见解。

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