414.3 Cloud Cover versus Snow Cover

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4.3 Cloud Cover versus Snow Cover
Although it was hypothesized that snow cover would have a similar but greater effect on power output than cloud cover, it was determined that snow accumulation actually causes smaller and shorter lasting effects. The reduction observed between a cloudy day and a sunny day was 77% whereas decreases in power output due to snow accumulation were as low as 3.2% and as high as 69%, and it was only that high on one occasion. Even though cloud cover was not a focus of this study in the beginning, it was realized throughout the study period that it caused drastic drops in the power generated. On a cloudy day, snow covering PV panels will have a less crucial impact since the power generated is already so low due to decreased solar radiation reaching the panels due to cloud cover. Snow cover becomes more of a problem on clear, sunny days where there is the potential to generate a lot of energy. In addition, cloud cover can have an impact throughout the entire day or for multiple days at time whereas snow accumulation only seems affect the PV panels for about half of the day.
Since it would take multiple cloudy days to equal the power generated by one sunny day, it is important to ensure that PV panels are free of snow on sunny days. This is especially important for residential systems or any system relying on solar power in an off-grid, battery based application, to generate electricity because it would be detrimental to the system to lose that potential power needed to either run the system or charge the battery due to a build-up of snow on their panels.

結果 (中文) 1:

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4.3 云与雪盖盖
虽然它被假设雪盖会比云层覆盖功率输出类似，但更大影响，它被确定积雪实际上会导致较小和较短的持久影响。阴天和晴天之间观察到的减少是 77%，而功率输出由于积雪跌幅则低至 3。2%和高达 69%，而它只是那么高有一次。即使云量不是在开始这项研究的一个重点，它实现了在整个研究期间这引起急剧下降产生的电力。在阴天，因为产生的电力已经是如此之低达到板由于云量减少太阳能辐射雪覆盖光伏板将产生不是非常关键的影响。雪盖清晰、 阳光灿烂的日子变得更多的问题有可能会产生大量的能量。另外云盖可在整个天整个影响或为多天的时间，而影响似乎只有雪的积累光伏板的大约一半天的
因为它会考虑多个阴雨天平等的一个阳光灿烂的日子产生的电力，这是重要的是要确保光伏板都是免费的积雪在阳光明媚的日子。这是特别重要的住宅系统或任何依靠离网太阳能系统，电池基于应用程序，来产生电力，因为这将不利于系统丢失运行系统或由于其面板上雪集结电池充电所需的潜在力量。

結果 (中文) 3:

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4.3云与积雪
虽然它是假设，积雪会对输出功率比云盖一个类似但更大的影响，确定了雪的积累却使较小和较持久的影响。观察到的还原阴天和晴天之间为77%而在因积雪的输出功率下降低至3。2%和高达69%，而只是高一次。尽管云盖一开始并不是本文研究的重点，这是实现在它造成功率急剧下降在研究期间产生的。在一个多云的日子，雪覆盖的太阳能电池板将有一个不太重要的影响自发电已经很低，由于减少太阳辐射到达面板由于云盖。积雪越来越清晰的问题，阳光明媚的日子，哪里有产生大量的潜在能量。此外，云盖可以有整个一天或多天的时间，而在积雪似乎只影响了半天的太阳能光伏板的影响。
因为它将采取多个阴天，相当于一个阳光明媚的日子所产生的电力，这是为了确保太阳能光伏板是免费的，在阳光明媚的日子，雪重要的。这个住宅系统或任何系统依靠在离网太阳能发电是特别重要的，基于电池的应用，发电，因为这将不利于系统失去潜在的能力需要运行系统或是由于在板积聚的雪电池充电。