Best Solar Panel Cleaner (2026): 4 Compared by Spec

The best solar panel cleaner for a rooftop array or a ground-mount setup is the one that matches how many panels you wash and how you apply it. We compared four concentrated solar panel cleaners on stated dilution, ready-to-use yield, formula and surfaces. The Teexpert gallon leads with 600 gallons of stated yield, and the CLEANTITE gallon follows with 512 gallons. Concentrates dominate this roundup: every pick here is a concentrate you dilute, not a ready-to-use spray. All four state ready-to-use yields from 128 to 600 gallons.

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The picks

#	Product	Solar Score	Buy
1	Teexpert Solar Panel Cleaner	9.7/10	Buy on Amazon
2	CLEANTITE Solar Sheen 1-Gallon	9.6/10	Buy on Amazon
3	Titan Glass Gleam Solar	9.6/10	Buy on Amazon
4	CLEANTITE Solar Sheen 32oz	9.6/10	Buy on Amazon

1

Teexpert Solar Panel Cleaner

Teexpert·9.7/10 Solar Score

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The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 1-gallon ultra-concentrated solar panel cleaner that makes 600 gallons, ammonia-free and phosphate-free with a quick-dry finish.

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Pros

• 1 gallon makes 600 gallons stated, the highest yield here
• Ammonia-free and phosphate-free formula stated
• Quick dry, streak-free finish stated
• pH neutral, residue free and safe around vegetation stated

Cons

• No warranty term is stated
• No dilution ratio is stated beyond the 600-gallon yield
• No applicator is included per the listing
• Citrus scent is the only scent option stated

Detailed Review

The listing states a 1-gallon ultra-concentrated cleaner that makes 600 gallons, with an ammonia-free and phosphate-free formula, quick-dry streak-free finish, citrus scent, and pH-neutral, residue-free claims with safety around vegetation. It targets dirt, dust, droppings, oils, fingerprints and water spots on glass and solar panels, and the bullets promise no water spots or streaks after each session. Its 600-gallon yield is the highest stated here. No warranty term is stated. There are no contradictions between the title, bullets and spec table.

Who it's for: owners of large arrays who want the highest stated yield per jug. Who should skip it: anyone who needs a warranty term or a ready-to-use spray. Its citrus scent is one of four stated scents here.

Its Solar Score of 9.7/10 comes from performance 32/35, build 21/25, value 22/25, safety 8/10 and warranty 0/5: 83 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications

Yield	600 gallons from 1 gallon
Formula	Ammonia-free, phosphate-free
Finish	Quick dry, streak-free
Scent	Citrus

Figures as published on the retailer listing, collected 22 October 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. Ammonia-free, phosphate-free, pH neutral, residue free, safe around vegetation, so safety scores 8 of 10. No warranty term, so warranty scores zero. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

2

CLEANTITE Solar Sheen 1-Gallon

CLEANTITE·9.6/10 Solar Score

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The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 1-gallon super-concentrated cleaner that makes 512 gallons, ammonia-free and phosphate-free, marked solar panel approved.

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Pros

• 1 gallon makes 512 gallons of ready-to-spray solution stated
• Ammonia-free and phosphate-free formula stated
• Solar panel approved per the spec table
• Spray and wipe application stated

Cons

• No warranty term is stated
• The 1-gallon jug suits large arrays more than small ones
• No dilution ratio is stated
• Clean scent is the only scent option stated

Detailed Review

The listing states a 1-gallon super-concentrated cleaner that makes 512 gallons of ready-to-spray solution, free from ammonia and phosphates, for glass, metal, wood and plastic. The spec table marks it solar panel approved and lists concentrated as a special feature, and the bullets say spray and wipe to remove oils, fingerprints and water spots. The maker calls it the most value concentrated formula available. No warranty term is stated. There are no contradictions between the title, bullets and spec table.

Who it's for: mid-size to large arrays where a 512-gallon yield covers many washes. Who should skip it: anyone who needs a warranty term or a smaller bottle.

Its Solar Score of 9.6/10 comes from performance 30/35, build 21/25, value 21/25, safety 7/10 and warranty 0/5: 79 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications

Yield	512 gallons from 1 gallon
Formula	Ammonia-free, phosphate-free
Approval	Solar panel approved
Application	Spray and wipe

Figures as published on the retailer listing, collected 22 October 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. Ammonia-free and phosphate-free formula, solar panel approved, so safety scores 7 of 10. No warranty term, so warranty scores zero. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

3

Titan Glass Gleam Solar

Titan Laboratories·9.6/10 Solar Score

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The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 1-quart highly concentrated cleaner that makes 500 gallons of RTU at 1/4 fl oz per gallon, balanced pH.

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Pros

• 1 quart makes 500 gallons of RTU stated
• 1/4 fl oz per gallon dilution stated
• Balanced pH and eco-friendly formula stated
• Rinse, power jet, or squeegee application stated

Cons

• No warranty term is stated
• The quart size suits smaller jobs than gallon jugs
• Orange scent is the only scent option stated
• No ammonia-free claim is stated

Detailed Review

The listing states a 1-quart highly concentrated cleaner that makes 500 gallons of RTU product at 1/4 fl oz per gallon of water, with balanced pH, an eco-friendly formula and orange scent. The spec table lists a 32-fluid-ounce unit count. It claims superb results for glazed panels and solar cells and lists rinse, power jet, or squeegee application. No warranty term is stated. There are no contradictions between the title, bullets and spec table.

Who it's for: small arrays where a quart of high-yield concentrate lasts. Who should skip it: anyone who needs a stated warranty or an ammonia-free claim.

Its Solar Score of 9.6/10 comes from performance 29/35, build 20/25, value 22/25, safety 7/10 and warranty 0/5: 78 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications

Yield	500 gallons from 1 quart
Dilution	1/4 fl oz per gallon
pH	Balanced pH
Scent	Orange

Figures as published on the retailer listing, collected 22 October 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. Balanced pH, eco-friendly formula, so safety scores 7 of 10. No warranty term, so warranty scores zero. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

4

CLEANTITE Solar Sheen 32oz

CLEANTITE·9.6/10 Solar Score

i

The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 32-oz ultra-concentrated cleaner that makes 128 gallons, ammonia-free and phosphate-free, for spray and wipe use.

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Pros

• 32 oz makes 128 gallons of ready-to-spray solution stated
• Ammonia-free and phosphate-free formula stated
• Spray and wipe application stated
• Compact size for small arrays

Cons

• No warranty term is stated
• 128 gallons is the lowest stated yield here
• No dilution ratio is stated
• Fresh scent is the only scent option stated

Detailed Review

The listing states a 32-oz ultra-concentrated cleaner that makes 128 gallons of ready-to-spray solution, free from ammonia and phosphates. The spec table lists a 32-fluid-ounce item volume and a fresh scent. The bullets say spray and wipe to remove oils, fingerprints, soil and water spots from glass, metal, wood and plastic. No warranty term is stated. There are no contradictions between the title, bullets and spec table.

Who it's for: small arrays and first-time buyers who want a compact bottle. Who should skip it: anyone who needs a warranty term or a high-yield jug.

Its Solar Score of 9.6/10 comes from performance 29/35, build 20/25, value 20/25, safety 7/10 and warranty 0/5: 76 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications

Yield	128 gallons from 32 oz
Formula	Ammonia-free, phosphate-free
Application	Spray and wipe
Form	Liquid concentrate

Figures as published on the retailer listing, collected 22 October 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. Ammonia-free and phosphate-free formula, so safety scores 7 of 10. No warranty term, so warranty scores zero. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

As an Amazon Associate I earn from qualifying purchases.

More picks to compare

• Teexpert Solar Cleaner 32oz32oz makes 150 gallons with quick-dry streak-free formulaCheck on Amazon
• Teexpert Solar Cleaner 32oz Pro32oz makes 150 gallons with ultra quick-dry formulaCheck on Amazon
• Solar Shine Cleaner ProtectantStreak-free cleaner and protectant for solar panelsCheck on Amazon

Compare the picks

Specifications are manufacturer rated as listed, collected 22 October 2026.

How we scored them

The Solar Score weighs performance, build, value, safety and warranty. For panel cleaners, safety means the formula statements the listing actually makes: ammonia-free, phosphate-free, pH-neutral or balanced-pH claims. None of the four listings states a warranty term, so all score zero on that line. How we pick explains the weights.

Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.

How to choose the best solar panel cleaner

Match the yield to the job

Yield is the first split. The Teexpert gallon makes 600 gallons of ready-to-use solution, the CLEANTITE gallon makes 512 gallons, the Titan quart makes 500 gallons and the CLEANTITE 32-oz bottle makes 128 gallons. A gallon jug suits a large array washed several times a year; the 32-oz bottle suits a small array. The Titan quart’s 500-gallon yield beats the CLEANTITE 32-oz bottle’s 128 gallons despite the same 32-oz size, so read the yield, not the bottle. See every best solar panel cleaner pick and all Solar Panel Kits guides.

Read the formula line

Both CLEANTITE cleaners and the Teexpert cleaner state ammonia-free and phosphate-free formulas. The Titan cleaner states balanced pH and an eco-friendly formula instead, with an orange scent; the Teexpert states a citrus scent and the CLEANTITE bottles state fresh and clean scents. Scent is the other split: citrus, orange, fresh and clean are the four stated scents. If your panels have coated glass, the ammonia-free and phosphate-free statements are the ones to look for. The Teexpert spec table also lists low odor and safe around vegetation, and the Titan listing says gentle on hands.

Check how you apply it

The CLEANTITE listings say spray and wipe to remove oils, fingerprints and water spots, and mention use with a solar panel cleaning brush. The Titan listing says rinse, power jet, or squeegee at 1/4 fl oz per gallon of water. The Teexpert cleaner states a quick-dry, streak-free finish with no water spots. Match the application to the soil: spray and wipe for light dust, rinse or squeegee for heavy grime.

Do the concentrate math

Only the Titan listing states a dilution ratio: 1/4 fl oz per gallon of water. The others state jug size and total yield, so compare gallons of ready-to-use solution per jug: 600, 512, 500 and 128 here. Measure the concentrate; the listings state no benefit to using more than the label ratio.

Store the concentrate right

Keep the jug sealed between washes so the concentrate holds its strength. The Teexpert listing says its formula is safe for surfaces and skin, the Titan listing says gentle on hands, and the CLEANTITE listing calls its formula super safe and environmentally friendly. The Teexpert spec table also lists penetrant, sodium citrate and specialized surfactant as special ingredients. A sealed jug also keeps the stated dilution ratio true from the first wash to the last.

Sizing Notes

• Match the concentrate size to the array: 1-gallon jugs for large arrays, 32 oz for small ones.
• Match dilution to the label: 1/4 fl oz per gallon of water is the only stated ratio here.
• Match the formula to the surface: ammonia-free and phosphate-free for coated glass.
• Match the application to the job: spray and wipe for light soil, rinse or squeegee for heavy soil.
• Match the scent to your preference: citrus, orange, fresh and clean are the stated scents.

Frequently Asked Questions

Is solar panel cleaning worth it?

The Titan and CLEANTITE listings claim their cleaners restore photovoltaic efficiency. The Teexpert listing claims its formula restores superior light absorption.

How do I properly clean solar panels?

The CLEANTITE listing says spray and wipe panels to remove oils, fingerprints, soil and water spots. The Titan listing says rinse, power jet, or squeegee.

How do I keep solar panels clean?

Wash on a schedule with a stated cleaner and let the finish dry: the Teexpert listing states a quick-dry, streak-free finish with no water spots.

How do I clean a solar panel?

Dilute the concentrate per the label; the Titan listing states 1/4 fl oz per gallon of water. Apply, then rinse, wipe or squeegee, and let the panels dry.

Are these cleaners safe for the panels?

The CLEANTITE and Teexpert listings state ammonia-free and phosphate-free formulas, and the Titan listing states balanced pH. None of the four listings states a warranty term.

Can I use these on windows too?

The Titan listing names windows as a specific use, and the Teexpert listing names windows, doors, mirrors and glass among its surfaces. The CLEANTITE listings name glass, metal, wood and plastic.

Still deciding? Our top pickTeexpert Solar Panel Cleaner

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