There are many ways to improve solar system efficiency, from panel repair to storage options and adjusting operations based on smart metering data. One of the most common impediments to solar efficiency is panel cleanliness or damage.
Dirt, dust, leaf litter and pollen can all affect the efficiency of solar panels. It’s not always cleaned off with the rain either – in fact, that can add more residual dirt to the equation. An IET electrician can clean your panel array while checking if there’s a need for panel repair.
The solar inverter is what allows the DC current generated from your panels to be used in AC systems, or returned to the grid. Inverters generally have a long life but do require an inspection to ensure safety and efficiency. Battery storage also has its own risks, especially where damage or weathering occurs.
AS/NZ 5033: 2014 is the Australian Standard for the installation of solar panels. Following this standard ensures the safety of people and longevity of the system through measures such as earthing, cable identification, and installation where there are access and working space available.
While most solar power inverters come with a lifespan of approximately 5 to 10 years, they do require regular maintenance in order to ensure optimal solar PV inverter efficiency.
Correctly installed solar systems are generally maintenance-free, however, it is recommended that systems are serviced annually by a licenced and adequately trained electrician to ensure the system is working efficiently and safely.
A simple health check is to look at the colour of the lights on the box during daylight hours when the system’s meant to be running. A green light on your inverter means your system is functioning properly. A red or orange light or no display during daylight hours means there is a system fault.