Solar Panel Cleaning: Costs, Savings, and Practical Advice for Kent Residents
About Solar Panel Cleaning
Solar panel cleaning involves removing dirt, debris, and other residues from the surface of solar panels. Over time, solar panels can accumulate dust, bird droppings, and other contaminants that reduce their efficiency. Regular cleaning ensures optimal performance and longevity of your investment.
Importance of Regular Solar Panel Maintenance
Maintaining your solar panels is not just a matter of cleanliness, it's a smart financial decision. Dirty panels can lead to a significant decrease in energy production, which translates to potential savings slipping through your fingers. Regular cleaning helps preserve both the efficiency and lifespan of your panels, allowing you to maximise the benefits of your solar energy system and keep more money in your pocket.
Why Kent Residents Should Prioritise Solar Panel Cleaning
If you live in Kent and decided to invest in a solar panel system for your property, this was a wise move. Kent gets the most annual sunshine in the whole of the UK - 1,447 annual hours of it. 76 more than our closest rival, Essex.
Kent's mix of countryside, large industrial areas, and bustling towns means that solar panels face different environmental challenges. In rural areas, pollen and dust can settle on your panels. At the same time, urban spaces deal with road pollution, and no county area is immune to industrial and agricultural pollution. To keep your solar panels working their best at your Kent home, it's essential to keep them clean.
With those almost 1,500 hours of glorious sunshine in Kent, a typical 16-panel south-facing solar system (roughly 4kW) could generate around 3,600-4,320 kWh each year. But what does that mean for your wallet?
At the current UK electricity rate (approximately 28p per kWh as of September 2024), utilising 100% of your generated electricity could save you between £1,008 and £1,210 per year. If you can sell any excess electricity back to the grid through the Smart Export Guarantee (SEG), this could add an extra £50 to £324 annually, depending on your specific energy supplier and export rates (The Independent, Solar Guide, Renewable Energy Hub).
This means your system could save or generate around £1,060 to £1,534 per year, making regular cleaning a financially savvy decision.
Do Dirty Solar Panels Really Stop Them Working So Well?
Here's a critical point: Dirty solar panels can experience significant efficiency losses. Depending on the dirt, pollution, and debris build-up level, efficiency can be reduced by 5% to 20%. In dirtier environments, such as urban or industrial areas like Kent, efficiency drops can exceed 25% due to additional particulate matter from nearby construction or traffic (Renewable Energy Hub).
During prolonged dry weather or drought periods, when there's insufficient rainfall to naturally wash the panels, efficiency loss can be even more pronounced. In some cases, if the panels are not cleaned manually, efficiency can drop by as much as 30% (Renewable Energy Hub, The Eco Experts).
Believe it or not, parts of our beautiful county get less rain than Spain! Despite being known for our lush countryside, our greenery is not a result of a wet climate. Long periods without heavy rain allow debris (and that dreaded bird poo) to bake onto your solar panels—making regular solar panel cleaning in Kent even more crucial to ensure your panels are working at their best.
Calculating the Energy Loss from Dirty Solar Panels in £:
Average dirt (5-20% efficiency loss):
If your 16-panel system generates about 3,600-4,320 kWh per year, a 10% reduction would result in a 360-432 kWh loss annually.
The current rate of 28p per kWh equates to a loss of £100.80 to £120.96 per year.
Heavy dirt/long periods with no rain (20-30% efficiency loss):
A 20-30% reduction would lead to a loss of 720-1,296 kWh annually.
This would translate to an energy loss worth £201.60 to £362.88 per year.
These figures show how essential it is to keep solar panels clean to maintain optimal performance and maximise savings, especially in areas like Kent with long periods of dry weather(Renewable Energy Hub)(The Eco Experts). Neglecting panel maintenance could result in an energy loss worth £100.80 to £362.88 per year, a significant amount that could be saved with regular cleaning.
Benefits of Professional Solar Panel Cleaning Services
Enhanced Efficiency and Energy Output
Professionally cleaned solar panels can improve energy output significantly. When your panels are free of grime, they can capture more sunlight and convert it into electricity more efficiently. This can lead to noticeable savings on your energy bills and a quicker return on your solar investment.
Extended Lifespan of Solar Panels
Regular professional cleaning can extend the life of your solar panels. By preventing the build-up of harmful residues, you reduce the risk of damage to the panels' surface, ensuring they last as long as possible. This means fewer replacements and repairs over time.
Safety and Peace of Mind
Cleaning solar panels can be a risky task, especially if they're installed on rooftops. But with professional solar panel cleaning services, you can rest easy. These experts have the right equipment and expertise to clean your panels safely, giving you peace of mind and protecting you from potential hazards. When you choose professional cleaning, you're choosing safety and confidence in the care of your investment.
Environmental Impact and Sustainability
Using a professional solar panel cleaning service is not just about efficiency, it's about sustainability. Clean panels are more efficient, which means they can generate more renewable energy. Additionally, many companies use eco-friendly cleaning solutions that do not harm the environment. By choosing professional cleaning, you're not just maintaining your panels, you're contributing to a cleaner, greener future.
DIY Solar Panel Cleaning vs. Professional Services
The DIY Approach: How to Clean Solar Panels Safely
DIY solar panel cleaning is an option if you prefer a hands-on approach. You'll need a soft brush, a hose, and non-abrasive soap to clean your panels. Gently scrub the panels to remove dirt and rinse them with water. However, always ensure safety measures are in place, such as using a sturdy ladder and avoiding cleaning panels in extreme heat.
Common Mistakes to Avoid When Cleaning Solar Panels
DIY cleaning can be effective, but there are common mistakes to avoid. Harsh chemicals, abrasive materials, or high-pressure water can damage the panels. Additionally, cleaning in direct sunlight can cause water to evaporate quickly, leaving streaks and reducing the effectiveness of the cleaning.
Advantages of Hiring a Solar Panel Cleaning Company
Hiring a professional solar panel cleaning company offers several advantages. Professionals use specialised equipment and techniques to clean your panels without causing damage. They also ensure the job is done safely and thoroughly, often spotting potential issues that might go unnoticed during a DIY clean.
When to Consider Professional Solar Panel Cleaning Services
Consider professional solar panel cleaning if your panels are challenging to access or heavily soiled or if you want to ensure the highest level of care and maintenance. Professional services are particularly beneficial after a storm or during seasons when pollen and dust are more prevalent.
Understanding Solar Panel Cleaning Costs in Kent
Several factors influence the solar panel cleaning cost, including the size of your system, the number of panels, their location, and the level of dirt and debris. The frequency of cleaning and the reputation of the cleaning company can also affect the price.
How Much Does Solar Panel Cleaning Cost in Kent?
The solar panel cleaning cost in Kent can vary but typically ranges between £30 and £500 for residential systems. That may seem like a broad price range, and it is. Solar panel systems vary massively in size and scope. It's essential to obtain quotes from several providers to clearly understand the costs involved.
Factors Affecting Solar Panel Cleaning Prices
What makes the difference when determining a price for solar panel cleaning is:
Accessibility: The ease of accessing and cleaning the solar panels affects the cost. Hard-to-reach panels usually cost more to clean.
Frequency: The regularity of cleaning influences pricing. One-time cleaning is more expensive than scheduled biannual maintenance.
Dirt Accumulation: The amount of dirt and debris since installation matters. Cleaners will ask about the installation date and previous cleanings to set up the right plan. Biannual cleanings are standard, but quarterly service may sometimes be needed, like if you live on or near a main road or with many overhead trees.
You are unlikely to find a quote for less than £35 for even the smallest solar panel installation. However, opting for solar panel cleaning services from your friendly local window cleaner is likely to achieve the best value price. At Millhouse Cleaning, we offer all our regular window cleaning customers a 15% discount on all our other exterior cleaning services.
Comparing Costs: DIY vs. Professional Cleaning
While DIY cleaning may seem cost-effective, the potential risks and the quality of the cleaning might not justify the savings. Professional cleaning ensures thoroughness and safety, often proving more economical in the long run when considering the benefits of enhanced panel efficiency and longevity and not risking life and limb on a ladder.
Finding the Best Solar Panel Cleaning Service in Kent
Key Considerations When Choosing a Service Provider
When selecting a solar panel cleaning company in Kent, consider their experience, customer reviews, and the range of services offered. Ensure they use safe and effective cleaning methods that align with your manufacturer's instructions, and check whether they provide guarantees on their work. Millhouse Cleaning offers a 100% satisfaction guarantee on ALL our services.
Questions to Ask a Solar Panel Cleaning Company
Before hiring a cleaning service, ask about their experience with solar panels, their cleaning methods, and whether they are insured. It's also wise to inquire about the expected duration of the cleaning and any potential additional costs that could arise. Opting for a Trading Standards-approved business is always a good idea, and we're proud to say we are a Kent Trusted Trader.
Top Solar Panel Cleaning Companies in Kent
Kent is home to several reputable solar panel cleaning companies. Research and choose a company with positive customer feedback and a strong reputation for quality service. Millhouse Cleaning is one such company that offers professional and reliable solar panel cleaning in Kent.
Frequency and Timing of Solar Panel Cleaning
How Often Should You Clean Solar Panels?
Solar panels typically need cleaning at least once or twice a year. However, the frequency can vary depending on local conditions, such as dust, bird activity, and pollution levels. Regular inspections will help determine when your panels require cleaning.
Best Times of Year for Solar Panel Cleaning in Kent
The best time to clean solar panels in Kent is during the spring and autumn, when pollen, dust, and debris are most prevalent. Cleaning during these seasons ensures your panels are ready to perform optimally throughout the year, especially during the sunnier months.
Signs Your Solar Panels Need Cleaning
Look for signs that your solar panels need cleaning, such as a noticeable drop in energy production or visible dirt and debris. If you notice these signs, it's time to schedule a cleaning to restore your panels' efficiency.
How Professionals Clean Solar Panels
Like our professional window cleaning services, we use flexible, extendable, soft-bristled, water-fed brushes to clean your solar panels to an efficient shine. Our extendable poles are fed with Ultra Pure Water filtered to remove all minerals. Because the water is ultra-pure, we don't need to use any chemicals. The soft-bristled brush agitates the dirt, and the flowing ultra-pure water rinses it away. It dries without any residue or water spots, leaving a perfect finish that repels dirt. Using detergents can leave a film on your solar panels that attracts dust, dirt, and debris. So, we highly recommend the pure water method for the longest-lasting finish.
We can do most cleaning from the ground, but for a final scrub (baked-on bird poo is no joke!) and a quality check, we may safely scale your roof, secured with harnesses and always with a second operative for safety, to ensure everything's left in tip-top condition.
Best Method for Cleaning Solar Panels Yourself
If you decide to clean your solar panels yourself, there are several methods you can employ. It's vital to follow the specific techniques the manufacturer recommends.
Note: In the Spring, Summer, and early Autumn, it's best to clean solar panels in the morning or evening. This timing helps to prevent the risks associated with the high temperatures that panels can reach during peak daylight hours. It also stops your water from evaporating too quickly.
Here are the best techniques for DIY solar panel cleaning:
Long-handled wiper: You can safely clean rooftop solar panels from ground level with a long-handled wiper. How feasible this is depends on the height of your property and your ground access. You can buy or rent tools to clean solar panels. You can also purchase DIY solar panel cleaning kits, usually with a long-handled brush and biodegradable soap. Follow the kit's instructions and ensure they align with the manufacturer's recommendations.
Ladder and various cleaning equipment: Start by placing a ladder securely, ideally with someone stabilising it at the base. Use a soft-bristle brush to gently remove leaves and debris. Lightly spray the panels with water from a garden hose, ensuring low pressure to avoid damage. A soft cloth with warm water can be used carefully for more challenging spots.
If cleaning from significant heights, ropes or a suitable harness may be necessary. These safety measures are crucial, especially if you need direct roof access. When in doubt, hiring a professional service provider is wise.
Invest in Professional Solar Panel Cleaning Services With Kent's Best
Consider hiring a professional solar panel cleaning service to get the most out of your solar panels. The benefits of enhanced efficiency, safety, and peace of mind far outweigh the costs, ensuring your solar investment continues to provide clean, renewable energy for years. We're happy to give you a comprehensive, personalised quote. The best way to get one is to:
Be sure to include your postcode and a photo of your solar panels for the most accurate quote.
FAQs About Solar Panel Cleaning
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Solar panel cleaning is essential because it helps maintain the efficiency of your panels, ensuring they generate as much energy as possible. Dirty panels can lead to reduced energy output and increased costs over time.
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Yes, you can clean solar panels yourself using a soft brush, water, and non-abrasive soap if necessary. However, it is important to take safety precautions and avoid harsh chemicals that could damage the panels.
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The cost of solar panel cleaning in Kent typically ranges from £30 to £300, depending on the size of the system and the level of cleaning required. It's advisable to get quotes from several providers.
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Solar panels should be cleaned at least once or twice a year, depending on local conditions such as dust, pollution, and bird activity. Regular inspections can help determine the best cleaning schedule.
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Not cleaning your solar panels can reduce energy efficiency, raise electricity costs, and potentially damage them over time. Regular cleaning helps avoid these issues and keeps your panels in top condition.
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Pure water is the best way to clean anything. It's environmentally friendly and leaves no detergent residue - it is also gentle on your solar panels. We use soft-bristled, extendable, water-fed pole brushes to clean solar panels in Kent. Many operatives use detergent or pressure washers, but we do not recommend these. Consult with your manufacturer to find out their approved cleaning methods.
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