Solar Panel Cleaner 32 Oz (Makes 128 G) - Super Concentrated Cleaning Solution for Glass, Metal, Wood & Plastic - Remove Oil, Fingerprint & Water Spots - Multipurpose Solar Panel Cleaning

I use this cleaner on my solar panel array (32 panels). I use a softer brush after spraying this cleaner onto the panels. Following the directions, I still have most of the bottle left. It gets my solar panels clean with no residue left behind. Highly recommend.

Great solution, and strong concentrate. As described. Cleaned solar panels very well and streak free. Worth it.

Fast shipping. Concentrate. One of per gallon of water. Works well on my solar pannels.

Bottle arrived with the cap secured with tape. Used the liquid with a spray nozzle though probably not as intended to clean roof-mounted solar panels since I did not want to use a brush at ground-level. The dilution mix was set to the highest concentration. Sprayed the panels with clean water to remove the top residue. Sprayed the dilution mix on the panels and allowed it to sit on the panels for 10 minutes. Re-sprayed as needed to keep the panels wet. Washdown with clean water. Did 3 cleaning cycles. Afterwards, most of the opaque film was removed. The remaining film was expected to be a mix of pollen and dirt since no brush was used. The most apparent change afterwards was the film build-up was much slower. Using a brush is necessary to remove pollen or similar. I also used the cleaner at full strength to remove the haze on the inside of a car windshield. The cleaner did remove the haze much easier with low odor compared to a standard window cleaner. Highly recommend for cleaning panels, so professional cleaning is less frequent, and to clean the inside of car windows/windshield.

Cleaning is very good, but you must do a clean water rinse on your panels or it will leave a film on the panels.

Product worked fantastic. I wish I would have taken a before picture. My solar panels were covered in caked on dirt. I had not cleaned them in almost 9 months. I used a deionized water filter for water (the no rinse style of car wash filter system) and twice the recommended amount of cleaner because i found that worked best for me. My process was, rinse the panels, wash with an extension pole and microfiber sponge attachment, rinse again, wash again, followed by a final rinse. This is mostly because of how dirty my panels were. I washed half a panel before I dunked the sponge into the cleaning water to get the dirt out of the sponge. I went through 4x 4ish gallons of water with 2oz of product mixed into each one to do 18x 430 watt panels. I did not squeegee the water off the panels after the final rinse, i just let it air dry. Very happy with this product and will buy again.

This product has little effect on hard water deposits on the solar panels of the pathway lights from the sprinkler system. The product description seems to indicate that it would work, perhaps with multiple applications at full strength. Thus far, no luck.

This is very concentrated cleaner so be careful not to get it in your eyes. Easy to use. Concentration is high so it will clean many panels per bottle. Durability is good. I added a few ounces to a 5 gallon bucket and filled with water. Just the mist coming up from the bucket irritated my eyes because it is so concentrated. I cleaned 24 solar panels with that single bucket. It rinses off quickly. Much better than using dish soap. The increase in power production is noticeable and profitable. The two pictures show the before and after production level of my solar panels. With this product, I don’t have to worry about any sticky residue that dish soap leaves behind, so I should continue to see positive results of the cleaning for many months. I rinse my solar panels six at a time first with the hose, then dunked a bar type cloth soft mop in the bucket and ran the cleaner over the panels and then rinse them. I continued until finished and they rinsed off streak, free, much quicker than dish soap