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Commercial Solar Panel Cleaning, Washing & Maintenance in Maryland, Washington DC, Virginia & Pennsylvania
EcoSun Wash provides professional commercial solar panel cleaning, washing, screening and thermal inspection services for solar farms, industrial facilities, warehouses, government buildings, retail centers, office complexes, and large commercial arrays across Maryland, Washington DC, Virginia and Pennsylvania. Our advanced robotic cleaning systems and DI-water technology deliver maximum performance, safety, and long-term energy efficiency.
Maximize Efficiency & Extend the Lifespan of Your Solar System
If you’ve noticed that your solar system is producing less power, or if your electricity bills have started to rise — your solar panels are most likely dirty.
This is the #1 reason commercial solar systems lose performance over time.
Annual Buildup Happens on Every System
According to the National Renewable Energy Laboratory (NREL):
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✔ Solar panels lose 2–10% efficiency every year due to dust, pollen, soot, mineral deposits, and bird droppings
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✔ This buildup compounds annually
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✔ Over several years, performance loss becomes significant
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✔ In highly polluted or high-pollen areas, systems can lose up to 30–40% of their power
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✔ In extreme cases of heavy neglect, we have seen systems operating at 50–80% below their rated output
Real Impact on Your Business
If your commercial system generates 100,000 kWh/year, even a moderate 10% loss equals:
📉 10,000 kWh of wasted production
📉 Higher electricity bills
📉 Reduced ROI and financial performance
Dirty panels trap heat, reduce light transmission, and stress internal components — all of which shorten system lifespan and increase long-term maintenance costs.Commercial solar systems can lose 5–10% of annual energy output due to buildup.
The Solution
👉 Regular professional solar panel cleaning
removes all buildup, restores maximum sunlight absorption, and keeps your system performing the way it was designed to.
Most clients see an immediate 10–30% production increase after a professional cleaning service, depending on contamination levels.
Customer Portfolio
FREE Thermal Scan With Every Cleaning
See More. Save More.
Protect Your Solar Investment.
Every EcoSun Wash cleaning includes a complimentary thermal camera inspection — no extra cost, no hidden fees.
Why it matters:
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Detects hotspots early before they cause power loss
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Finds failing or damaged cells that aren’t visible to the eye
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Prevents expensive repairs by spotting issues in advance
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Ensures maximum energy output from every panel
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Gives you peace of mind that your system is operating safely and efficiently
A clean system is good — but a clean + inspected system is the smartest choice.
Our Services
Commercial solar arrays require advanced cleaning technolog
y to maintain high energy output and reduce operational losses. Our commercial solar panel cleaning service is designed for:
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Solar farms
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Commercial buildings
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Warehouses
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Industrial facilities
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Office complexes
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Shopping centers
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School and government buildings
We specialize in solar farm cleaning services across Maryland, DC, Virginia and Pennsylvania, including large ground-mount arrays and utility-scale commercial systems.
Why businesses choose us
✔ Removes dust, algae, industrial pollutants, and hard-water mineral buildup
✔ Safe cleaning for large-scale solar installations
✔ SolarCleano M1 robotic cleaning system for maximum efficiency and uniform cleaning
✔ Sola-Tecs C1000 brush system for panels installed on roofs with a tilt over 30°
✔ Manual precision-cleaning systems for areas where robotic cleaning is not possible or not recommended
✔ Protects panel coatings and improves system ROI
✔ Fully insured commercial-grade service
With increasing energy demands across MD, VA, DC, and PA, clean solar panels deliver better performance, lower operational costs, and maximize long-term returns for commercial clients.
Serving Maryland, Virginia, Washington D.C., and Pennsylvania
Environmental conditions in the Mid-Atlantic — including heavy pollen, humidity, tree cover, dust, and seasonal debris — significantly reduce solar panel performance if not addressed.
Routine maintenance includes:
✔ Professional DI-water cleaning
✔ Removal of dust, pollen, dirt & mineral residues
✔ Inspection of mounting hardware for structural safety
✔ Electrical connection verification
✔ System performance testing to ensure maximum output
Routine maintenance improves system reliability, reduces energy loss, and extends your system’s lifespan.
Each service includes a full commercial solar panel inspection and system screening to ensure maximum performance.
Professional Commercial Solar Panel Cleaning Services
Routine Solar Panel Maintenance (Maryland • Virginia • DC • Pennsylvania)
How We Work?
We perform a detailed inspection to evaluate dust, dirt, mineral deposits, bird droppings, and other performance-impacting factors.
Panel Condition Assessment
We select the safest and most effective cleaning method based on system type, size, and environmental exposure.
Customized Cleaning & Maintenance Plan
DI-water high-purity filtration SolarCleano M1/F1 robotic systems for large installations Sola-Tecs C1000 rotating brush for tilted or difficult areas Manual soft-brush systems for sensitive zones
Advanced Cleaning Techniques
We perform a complete post-cleaning diagnostic to ensure your system is operating at maximum capacity. This includes: Before-and-after photo and video documentation Performance verification and output testing Thermal screening (infrared imaging) to detect: hotspots faulty or underperforming modules wiring issues shading problems microcracks and early signs of cell degradation Personalized maintenance recommendations based on system condition and environmental factors Thermal screening provides critical insight into the health of your solar system and allows early detection of issues that may reduce performance or damage components over time.Each service includes a full commercial solar panel inspection and system screening to ensure maximum performance.
Final Inspection, Thermal Screening & Documentation
Commercial Solar Panel Cleaning & Screening — FAQ
Why should I clean my solar panels regularly? Regular cleaning is essential to maintain peak solar performance. According to the National Renewable Energy Laboratory (NREL) and their Photovoltaic Module Soiling Map, even moderate surface contamination—dust, pollen, dirt, bird droppings, and industrial pollutants—can reduce annual energy production by 5–10%. In areas with heavy pollen, humidity, nearby trees, construction zones, or industrial activity, the losses can be significantly higher. For commercial properties, this translates into: lower energy output reduced return on investment (ROI) inconsistent system performance increased operational costs Routine screening and cleaning help protect your solar assets and ensure long-term stability.
How often should I clean my solar panels? Commercial solar arrays typically require cleaning: Every 3–4 months in areas with high pollen, dust, or tree coverage Every 6 months in moderate environments Every 1–2 months for solar farms located near highways, industrial zones, or agricultural fields NREL notes that the Mid-Atlantic region—Maryland, Virginia, DC, Pennsylvania—experiences heavy pollen and organic soiling, which their algorithms do not fully account for. This means real-world energy loss may be higher than shown on ProMap, making routine cleaning even more critical.
Can solar panel cleaning damage my system? No. Our professional methods are completely safe: SolarCleano M1 robots Sola-Tecs C1000 brushes Soft manual brushes Pure DI-water No chemicals
How much does solar panel cleaning cost? ✔ $2,22–$6 per panel (large-scale systems) ✔ $250–$600+ per commercial rooftop ✔ Custom pricing for solar farms & industrial arrays ✔ Discounts for scheduled maintenance plans
Will cleaning my solar panels increase my energy production? Yes — cleaning typically restores 10–30% production immediately and reduces long-term system stress.
Keep your solar panels in top condition for maximum energy output, greater reliability, and long-term savings.
A clean solar system delivers:
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higher energy efficiency
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improved system performance
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reduced operational costs
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extended equipment lifespan
Whether you manage a commercial property, solar farm, warehouse, or office building — clean panels directly increase your return on investment.
Maximize Your Solar Power with Expert Cleaning!
Cities & Regions We Serve in the DMV / Mid-Atlantic Area
Arlington • Alexandria • Fairfax • McLean • Tysons • Reston
Vienna • Ashburn • Leesburg • Annandale • Sterling • Manassas
Northern Virginia experiences both dense tree coverage and commercial-industrial dust.
EcoSun Wash specializes in large commercial rooftop systems, office buildings, warehouses, and solar farms throughout Northern Virginia.
Baltimore • Columbia • Ellicott City • Rockville • Gaithersburg
Silver Spring • Germantown • Bethesda • Laurel • Bowie
Frederick • Annapolis • Towson • Hagerstown • Glen Burnie
Maryland’s climate (pollen, humidity, industrial zones, tree cover) creates heavy soiling, making routine commercial cleaning essential for system performance.
All DC districts — downtown rooftops, federal buildings, schools, mixed-use complexes, commercial offices, hospitals, and government facilities.
DC’s urban pollution and limited rainfall create fast accumulation on solar surfaces, making regular screening and cleaning critical for efficiency.
Philadelphia Region • Lancaster • York • Harrisburg • Reading
We support both commercial rooftops and utility-scale solar farms, where environmental buildup significantly reduces annual production.
We provide commercial solar cleaning services near you throughout the entire DMV and Mid-Atlantic region.
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