Yes, they can, and it goes beyond losing a little power. A layer of dust spreads thin and costs every panel a bit of output. Bird droppings are different. They’re thick, they stick, and they block light completely over one small spot. That small spot can do real, permanent damage to the cell underneath if…
Usually not necessary, but it can genuinely help if you want the extra output. Research shows snow-covered panels typically only lose about 3 percent of their annual production compared to fully cleared panels, mostly because panels are installed at an angle steep enough that snow tends to slide off on its own. Does Snow on…
If you’ve assumed a good rainstorm keeps your solar panels clean, the research says otherwise. A 2023 study by NREL, Duke University, and international university partners, published in the IEEE Journal of Photovoltaics, found that pollen buildup alone can cut panel efficiency by as much as 15% during peak pollen season. Even more surprising: unwashed…
If you live in a newer subdivision in Saratoga Springs, Eagle Mountain, Lehi, or American Fork — or your home backs up to farmland — your solar panels are likely collecting grime faster than your neighbors’ a few miles away. A report from KESQ this year, citing 2025 research on solar output, found that dust…
If you live in a newer subdivision in Saratoga Springs, Eagle Mountain, Lehi, or American Fork, or your home backs up to farmland, your solar panels are likely collecting grime faster than your neighbors’ a few miles away. How Much Can Dust Actually Cut Solar Output? A report from KESQ this year, citing 2025 research…
Yes. Flat-mounted and low-tilt solar panels get dirty faster and stay dirty longer than steeply tilted rooftop panels, because rain physically can’t rinse them the way it rinses a sloped surface. If your home has a flat or low-tilt install, waiting on the weather to keep your panels clean isn’t a real strategy. What Did…
Professional solar panel cleaning nationally isn’t cheap, but at My Hearthside, owner Jac prices well below that norm, landing somewhere in the 30–50% range of typical national rates. Because every roof, panel layout, and access point is different, Jac doesn’t post a flat number online. Pricing gets worked out face-to-face with the homeowner. Why Doesn’t…
Most homeowners assume dust and pollen are the only things that hurt solar output. Dead insects and bird droppings are just as common on Utah County panels, and in some ways they’re worse. Dust settles as a thin, even layer that blocks a small, consistent amount of light. Bird droppings and dead bugs are different:…
Most homeowners should have their solar panels cleaned once or twice a year, not on some fixed “every 3 to 6 months” schedule. That every-few-months number gets repeated a lot online, but in my experience it’s closer to a sales pitch than real advice. The real answer is: it depends on what your own monitoring…
Based on the panels I’ve personally cleaned, it depends on how dirty they were to begin with, but the gains are real either way. On panels with just a light dusting of dirt, cleaning increased their power output by about 5 to 10 percent. On dirtier panels, the increase has gone as high as 15…