Solar panels are a significant investment in clean energy and lower utility bills. But to get the most out of them, they need proper maintenance. A common question we hear is, “Do my solar panels really need to be cleaned?” The short answer is a resounding yes.
“When solar panels are covered in dust, pollen, or bird droppings, they can’t absorb as much sunlight.” — Jesse Flores
Just like a dirty window, a dirty solar panel can’t perform at its best. Many residents could be losing 15%–25% of their solar efficiency without realizing it, simply because their panels are dirty.
Does cleaning solar panels increase efficiency?

By removing this buildup, you restore the panel’s ability to absorb maximum sunlight, directly translating to increased energy production and efficiency. At Superior Solar Cleaners, we use a specialized water filtration system that removes hard water minerals and oily residue. This ensures a spot-free finish that won’t cause deflection of the sun’s rays, keeping your panels working at peak performance.
How much energy do dirty solar panels lose?

The energy loss from dirty panels can be substantial. Depending on your location and the time of year, you could be losing up to 25% of your potential energy production. This loss means your system generates less electricity, forcing you to pull more power from the grid and increasing your energy bills—defeating one of the main purposes of having solar panels.
A major culprit, especially in our area, is birds nesting under panels. This is not only a mess but can also destroy the wiring and create a health hazard from parasitic waste. We offer bird-proof wire mesh installation to deter pigeons and other birds from nesting under your panels, protecting your investment from costly damage.
Solar Panel Cleaning: Savings vs. Cost and ROI

Viewing solar panel cleaning as an expense is a mistake; it’s an investment with a clear return. The cost of a professional cleaning service is often quickly offset by the savings you’ll see on your electricity bill. By restoring your panels’ efficiency, you maximize the energy you produce and minimize your reliance on the grid.
Our service is unique because it’s one of the few home maintenance tasks that can actually pay for itself through energy savings, unlike services like lawn care or pool maintenance, which don’t offer a financial return. We help you protect your investment and ensure it continues to generate value.
“We recommend cleaning solar panels at least twice a year,” said Jesse Flores. “Once before the summer heat and once before winter. That way, homeowners get maximum energy savings year-round.”
With 9 years of experience and certification in photovoltaic systems, our team at Superior Solar Cleaners has the expertise to service residential homes, commercial buildings, office buildings, parking structures, and more.
Don’t let dirt and debris reduce your solar savings. We look forward to speaking with you and serving all your solar panel cleaning needs!