The selling points of solar systems are that whilst they are quite expensive to set up at first, they literally need little to no maintenance and can last you for a decade or more. This is why most homeowners somehow find the funds to install a panel or two in their homes – after the initial expenses, there is much to gain, and almost nothing to lose. However, whilst these solar cells indeed do not need the level of maintenance any other kind of energy generator would need (because they technically do not have any moving parts or the like), there are still things you can do to improve their lifespan.
The most important part of maintaining solar panels is basically ensuring that they are clean. The efficiency of a photovoltaic cell is basically dependent on their cleanliness: if the panel is obstructed by litter and other kinds of debris and dust, its ability to harness the sunlight can easily be impacted. If your panels are installed on the ground, you are in luck, because more often than not, a simple hosing down is all you need to clean the panels.
Panels installed on the roof can be more difficult to clean, and if they are hard to reach, it is often a better idea to call up a professional. Most solar systems-related companies offer maintenance services (and sometimes, you can get free or discounted service if you had them install your 3kw solar system). Additionally, you can also have the rain help you – in fact, whilst rainy days won’t give you much solar energy, they will instead help you with keeping the panels clean (and there you have a reason to not hate rainy days!).
Also, when it comes to cleaning panels, sometimes, water alone might not do the trick. In this case, you can purchase a cleaning kit – which you should technically include a wiper, a brush and liquid soap, so in some cases, even automobile cleaning kits work. You basically have to brush up the panels with soapy water, and wipe the excess water off after. Make sure to properly wipe the panels, or the leftover soapy water can dry and leave a small film of soap that can obstruct the panels.
Finally, to know whether you need to clean your panels, you should inspect the panels regularly, which is why it is a good idea to periodically inspect them – once every two weeks or so is ideal. Alternatively, you can install a monitoring system to check the performance of the panels – a lower efficiency will immediately tell you that maintenance is required.