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Panel-safe cleaning solutions
Solar Brite (solar panel cleaning soap, quart/gallon)
Winsol Solar Brite is a mild-pH concentrate from a professional window-cleaning brand, in the gallon size for repeat or multi-array use: one gallon makes about 33 gallons at Winsol's light-duty 1:32 dilution, with stronger mixes for heavier soil.
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Skip it if you want the highest dilution economy; Teexpert's gallon makes 600 gallons to Solar Brite's 33 at light duty. Skip it if you have one small array; Winsol sells a quart. If you are a crew, the 5-gallon pail is the same soap.
Specs
| Size | 128 oz |
|---|---|
| Makes | 33 gal |
| pH | Mild |
| Ready to use | No |
How it compares
| Product | Size (oz) | Makes (gal) | pH | Ready to use | Tier | What it doesn’t include |
|---|---|---|---|---|---|---|
| This pageSolar Brite (solar panel cleaning soap, quart/gallon) | 128 oz | 33 gal | Mild | No | Mid | |
| Teexpert Solar Panel Cleaner (1 gallon concentrate) | 128 oz | 600 gal | No | Mid | Both Polywater SKUs (SPW-128 and the SPW-35HS 2-pack) are unavailable on Amazon. This gallon concentrate has similar dilution economics. Backup link: https://amzn.to/4zCgzHg | |
| Winsol Solar Brite (5 gallon pail) | 640 oz | 165 gal | Mild | No | Pro | The Heliotex 5-gallon (B06XY4C1GG) is unavailable. This is the same soap as the gallon row — cross-link the two. Backup link: https://amzn.to/4iCrc6N |
| Teexpert Solar Panel Cleaner (32 oz concentrate) | 32 oz | 150 gal | No | Entry | ||
| Absolutely Clean Bird Poop Remover (32 oz enzyme spray) | 32 oz | Yes | Entry | Both Poop-Off 32 oz listings are unavailable. This is the same enzyme, no-ammonia chemistry. Backup link: https://amzn.to/4zRG0F5 | ||
| Bare Ground One Shot Glass & Solar Panel Cleaner Concentrate | No | Mid | ChemiTek is not sold on Amazon US at all. IMPORTANT: this product carries no anti-soiling 'protect' coating claim — the page copy must not claim one. | |||
| CLEANTITE Solar Panel Cleaner / Solar Sheen (1 gallon concentrate) | Mid | |||||
| Essential Values Solar Panel Cleaner (concentrate) | Entry | |||||
| Glass Gleam Solar (super-concentrate) | 128 oz | No | Mid |
What it doesn’t include
- Concentrate: dilute before use
Put your own panels into the soiling-loss calculator to see what dirty glass costs you each year. Then read Best Solar Panel Cleaning Soap (2026 Buyers Guide).
Rather not DIY? Get free quotes from vetted local pros, the safer choice for anything above one story.