A "real world" examination of PV system design and performance

There is no substitute for experience when it comes to designing a PV power system. Almost all system requirements are unique in some way and the ability to anticipate the on-site challenges and design the system accordingly can help ensure an optimum system performance. It's the system performance that is measured and noted by the system user, not the solar panel performance. Although the solar panel usually gets blamed when performance is less than expected, it is usually a system problem such as a poor choice of components, inefficient system architecture, poor installation techniques, or possibly, the wrong PV technology for the application. Especially for the larger PV systems, the key challenge is to design a system that matches the requirements, the environment, location and application, resulting in a high level of performance.