The Sun Position plugin created by Cerebral Meltdown is a fun and useful sun path tracking plugin that shows you precisely where the sun is at a certain time period of the year and location. This plugin is great for designing buildings and actually seeing where the sun would be at certain periods of the year and during the day. It could help to achieve the highest home efficiency and Leed points (Leadership in Energy and Environmental Design) when designing buildings. But the developer does mention to check the accuracy if exact position is crucial.
The sun position plugin is very easy to use and also shows you where North would be and you can adjust the sun spheres to however you would like. But a drawback is that this plugin does not produce the sunlight from the sun models. So you would still have to set your own sun light locations, but it would be pretty simple as you already would know where to place it based from this plugin. I recommend placing the suns on their own layer.
Overall, the Sun Position plugin by Cerebral Meltdown is a great plugin to have if you are dealing with structures. This type of information can be crucial to designs and this why this is a must have for architects and civil designers. At the time of this review this plugin is free and is available at CerebralMeltdown.com. I give this plugin 5 out 5 stars!