The Best Direction for Solar Panels

光伏太阳能电池板行
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Solar panels are gaining popularity as an environmentally friendly investment that will produce再生能源在大规模的情况下未来。即使在你做出初步决定切换到太阳能电池板后,仍有一些东西需要考虑 - 以及数量,尺寸和电力容量,您将想要研究太阳能电池板的最佳方向。系统是否安装在屋顶,车库或地上,面板面的方向是您的系统产生的能量的主要因素。

学习屋顶面将有助于确定屋顶太阳能电池板系统的最佳定位的方向,因为它决定了面板全天将收到多少自然阳光。如果你有一个公司安装面板for you, they should be able to help give you an idea of the most optimal direction, but another option is to use Google Maps. Simply type in your address and compare your roof’s direction on the satellite imagery to the provided compass grid.

面向朝南面板的情况

在北半球,太阳能电池板在面对南方时通常更有效。根据能量贤哲清洁能源项目联合开发的年代tates Department of Energy to help consumers choose solar equipment, solar panels that face east or west typically produce 20% less electricity than if they were to face the south. In terms of angles, a fixed roof-mounted system should be at an angle equal to the latitude of the location where thepanels are installed通常在30到45度之间。如果您的屋顶不面对正确的方向,可以调整面板的角度以抵消方向的效果。

这并不意味着如果你的屋顶直接面对,那么你不会从太阳能电池板上受益,但是。屋顶太阳能电池板仍将产生足够的电力救你钱即使它们位于其他方向,即使它们位于其他方向上,也是如此。事实上,如果您居住在经历过雪或多云的天气状况的地区,太阳能电池板甚至会产生电力。在这些情况下,您可能需要投资更多的面板,特别是如果您计划使用太阳能为整个财产供电。

与朝北的屋顶有关

朝北系统通常被认为是太阳能生产的最糟糕的位置。这不是不可能的,但可能需要额外的安装来定位面板,使它们反对屋顶的自然倾斜,不要与屋顶齐平。如果面向朝南的屋顶是您唯一的选择,请考虑一个基于地面的系统甚至一个在单独的车库之上。

The Case for West-Facing Panels

有几项研究案例为西边的面板,包括一项调查驱动器, a software company that works with electric companies to manage relationships with customers. The company examined 110,000 California homes and found that while most solar panel systems point south because it captures the most power over the course of the day, west-facing systems maximize production during the late afternoon when homeowners are more likely to run the dishwasher, turn on the lights, and watch television. In this case, the most optimum direction to face your solar panels may be somewhere between south and west, depending on what time of day you use the most energy. This way, you can take advantage of the benefits that both directions bring to the table.

其他在日志太阳能发表的研究investigated optimal solar placement using a model of a generic solar panel and calculated outputs for every possible placement in 1,000 different locations throughout the United States. In Austin, Texas, for example, west-facing arrays produced 14% less energy than south-facing ones over the course of a year; however, during the summer months, the difference was just 1%. The study also found that if they considered energy produced during peak usage hours from 3 p.m. to 7 p.m., then the western orientation was the most efficient.

这是什么意思?嗯,一些公用事业公司试图避免在下午晚些时候和晚上的电力使用电力,因此在这些时期内额外收取额外费用。如果您居住在某个区域,根据使用时间收取更昂贵的效率率,可能值得考虑面向西部的面板而不是朝南的面板。