The leap from solar panel electricity generation to actual utility used in your house or business, the solar inverter is perhaps the most important component of any solar energy system. Inverters convert the direct current (DC) produced by your solar array to usable alternating current (AC). Solar Inverters are made for reliability and durability, but should not be considered “maintenance free”. Like any other electrical equipment, regular inspections and maintenance can help the inverter run continuously and extend the life of the system overall.

Routine maintenance usually involves simple things like cleaning any dust off the inverter, verifying that the device has ventilation, checking for loose wires or corrosion, and reviewing the system output for any unusual drops. A lot of the new inverters have their own monitoring system and will alert you to any faults or irregularities, so you will notice problems before they escalate. As a rule of thumb, it is best to inspect your inverter every 6 to 12 months, to determine that all aspects of the inverter are functioning properly.

Solar inverters are solid-state devices, but they can still experience a handful of common problems over time. Overheating ​is one of the most common issues, especially if installed in direct sunlight or non-ventilated areas. Other issues include a grid connection error, aged or failed capacitors, isolation faults from moisture or damage to insulations, and mppt (maximum power point tracking) failures that can reduce your system’s energy output. Early detection and resolution of these issues can minimize possible damage and energy loss.

To summarize, solar inverters do not require maintenance, but they are not maintenance-free. A small amount of care is beneficial for keeping your solar system working optimally. A proactive approach to inspections and minor problems will help ensure that you continually benefit from maximum performance and maximum savings from your solar system.