The Best Direction for Solar Panels

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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.


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。




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.