论文标题
太阳能自给自足的最佳存储
Optimal Storage for Solar Energy Self-Sufficiency
论文作者
论文摘要
我们确定实现给定可靠性自达所需的能源存储，这是在太阳能生成和存储系统中的多重容量的函数。基于圣路易斯地区的40年的太阳能数据，我们制定了一个统计模型，用于在数百万年内生成合成的日光度数据。我们使用这些数据来监测冬至附近存储系统中的能量耗竭。从这些信息中，我们为所需的存储和成本优化的系统配置的性质开发出明确的公式，作为可靠性和发电能力过剩的函数。最小化组合生成和存储系统的成本可提供这两个成分的最佳组合。对于年龄少于3 \％的年失败率，太阳能发电能力略微超过冬至的每日电气负荷以及几天的存储时间就足够了。
We determine the energy storage needed to achieve self sufficiency to a given reliability as a function of excess capacity in a combined solar-energy generation and storage system. Based on 40 years of solar-energy data for the St.\ Louis region, we formulate a statistical model that we use to generate synthetic insolation data over millions of years. We use these data to monitor the energy depletion in the storage system near the winter solstice. From this information, we develop explicit formulas for the required storage and the nature of cost-optimized system configurations as a function of reliability and the excess of generation capacity. Minimizing the cost of the combined generation and storage system gives the optimal mix of these two constituents. For an annual failure rate of less than 3\%, it is sufficient to have a solar generation capacity that slightly exceeds the daily electrical load at the winter solstice, together with a few days of storage.
