Leaves, bird poop and airborne particles (from dirt and pollen) all dirty your solar panel investment. Dirty panels mean power loss – grime and debris reduce the ability of the solar array to perform at full capacity.
When sunlight hits a solar cell, it excites the electrons in the semiconductor material, and it’s this energy that can be captured as electricity. If the cells aren’t clean, then less sunlight is able to be absorbed and less electricity is generated.
The potential energy loss depends on the level of filth your solar panels have accumulated. Energy loss could reach 25 percent, but some reports bring the number as high as 30 percent for consumers who never clean their system.
Homeowners with small solar systems may choose elbow grease as their preferred cleaning method. Solar panels, like windows, can be cleaned with warm water and dishwashing soap to remove any dirt or residue. When you wash them, you’re washing the glass surface and the frame of the panel.
Cleaning solar panels can come with risks. First, you (or the person who is doing the cleaning) risk personal injury. If you’re not comfortable on your roof, consider your personal safety before ascending a ladder. Also, while soap and water won’t hurt your solar panels, you still run the risk of damaging them (remember this is an electrical system you’re cleaning) or even your roof if you don’t know what you’re doing. Some things are best left to professionals.
A good way to illustrate why rainwater will not clean solar panels is by looking at your car windscreen. If you didn’t clean your windscreen for 6 months, how much visibility would you lose? If left, the grime on your windscreen would accumulate and eventually ‘green’ over. Even if the car is rained on, the rain contains airborne dust particles that settle and attach to the surface after the rainwater evaporates. When we use our windscreen wipers, we clean the centre of the screen, but where the wipers do not reach, there is a film of dirt. The whole of your solar panel is in exactly the same condition as the edge of your car windscreen because they are both exposed to the same elements. Visibility through your windscreen is lost due to the loss of light. Therefore, the same principles hold true for solar panel cleaning. It is very important to maximise the light getting into the solar panel and in turn, increase your financial reward.
Our Pure water system is the ideal cleaning solution for this task. This professional system means that we can safely clean most solar panels with our feet safely on the ground. Using resin filtration to purify the water and long extending poles we are able to reach solar panels that may be high on a roof or ones that are just awkward to access. The specially designed brush head gently removes the dirt whilst the pure water cleanses the surface, meaning that the solar panels can achieve their optimum performance once again.