The Solar Module Inverter
2017.01.25Explaining how module inverters work and why you should, or shouldn't chose them.
The solar module inverter is the second most vital component of any solar system, behind only the panel itself. Its role is to change the direct current (DC) produced by the panel into alternating current (AC) electricity that is needed by the electricity grid and used by domestic electrical appliances. Inverter technology has progressed over the last few years and now inverters perform a number of additional tasks alongside simply inverting the current. These include system monitoring and control functions, which keep the solar system working to its maximum efficiency. They also allow technicians to carry out diagnostics on the system. By undertaking these complex tasks, the module inverter is really operating as the electronic brain of the solar PV system. There are a number of competing systems to pick from and choosing which is best for any one installation is one of the most vital decisions to be made. Basically there are three types of system: the micro-inverter, string inverters, and central inverters. Each has its own pros and cons, so it is important to have an understanding of the features of each type of system.