5 Things to Know Before Buying solar panel mounting robot

A lot of people ultimately decide to go solar because the math works out over the long term. But to figure that out, you must first determine what your system should cost up front.

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The answer to that question: It's complicated, and it depends.

When Larry Gawel and his wife installed solar at their Lincoln, Nebraska, home in , the system cost about $18,000. The system has since provided for almost all their electrical needs, including heating and cooling. Recently their retirement planner asked for a summary of their utility bills and assumed that the figure they gave him was per month. 'I told him no, that's an entire year,' Gawel said.

At the other end of the range is the Central Florida home of Erik Erickson, Wirecutter's director of platform engineering. To manage hurricane threats and routine power outages, Erik has specced out a slightly oversize solar array coupled to four backup batteries. Capable of powering the home if the grid goes down for a week or more, the system will come in at about $68,000.

The average price falls somewhere in between. The median price of a US residential solar installation was $4.20 per watt in (down from $14 in ), and such a system produced 7.2 kilowatts, according to a report from the Lawrence Berkeley National Laboratory (PDF). (That number skews low because California installs the most residential systems, but they're relatively small; other states average above 8 kilowatts.) That works out to a total cost of about $30,240.

EnergySage, a 'solar matchmaker' whose expertise we've highlighted before, has a detailed chart of state-by-state average costs that may give you a rough idea of what to expect for your home. Just be aware that the results shown there are limited to an average system size installed in that state, which may not match your own needs, and the figures are lower by about 25% than the numbers in the Lawrence Berkeley National Laboratory report. In part, this is because EnergySage factors in savings that you can get only if you use EnergySage to connect with contractors in your area.

The federal government will subsidize 30% of the cost of your solar project.

The Inflation Reduction Act of made several important changes to how federal solar tax credits work. For one, it extended the credit for years, until ; it also raised the rebate to 30% of the total cost of installation until , after which it tails off to 26% and 22% the next two years.

There's no cap to the cost, either'whether you pay $10,000 or $100,000 for your solar project, you get the full value of the credit.

In a sense, that may be all that you as a homeowner need to know. You have a long window in which to decide whether to go solar, where you can be confident of writing off 30% of the total cost. Your up-front costs will be reduced by almost a third, and you'll recoup your investment that much faster.

Significantly, you can spread the credit across as many as the next five years of tax returns. This option is designed to maximize the credit's benefits, since not every household will owe 30% of their project cost in taxes in the year of installation.

The Inflation Reduction Act also improves certainty and long-term planning in the solar industry itself, said Joe Lipari, vice president of projects at Brooklyn SolarWorks. 'We always joke and call it the 'solar coaster' because so much of it is really influenced by political whims,' he said. 'What the IRA did was provide certainty that this is an incentive that's going to be here to stay' We're so accustomed to, 'It's going to expire next year. Sign up now. Get it while you can. It's never going to get better.' It changes the mindset.'

And that should help smaller, customer-oriented local solar contractors'such as Brooklyn SolarWorks'stick around.

We strongly recommend working with such a contractor, versus a large national firm whose business model, as detailed by Alana Semuels in Time, prioritizes sales over service. (In Semuels's words, 'National solar companies essentially became finance companies that happened to sell solar.') Tellingly, the first of the '40 Questions to Ask an Installer' suggested by the nonprofit American Solar Energy Society are 'What year was your company established?' and 'Where are its offices?'

Many states, municipalities, and utilities have their own incentive programs that will further reduce your costs, often significantly. For example, Wirecutter editor-in-chief Ben Frumin got an additional 19% of his solar installation subsidized by New York programs.

DSIRE, the Database of State Incentives for Renewables & Efficiency, makes it easy to find programs in your area using just your zip code. California, Minnesota, New York, and Texas have more than 100, and most states have at least several dozen. You still have to read through the descriptions of the individual programs to find those that apply to you (some have qualifying restrictions, such as income level), but having all of them gathered in one place for research purposes is a big help.

Any contractors you speak with should also be familiar with the programs you likely qualify for'after all, it's in their own self-interest to help bring you to the decision to go solar'and if they are not, consider that a warning flag. Confirm that the contractors are authorized to submit proof-of-work statements to the utilities and agencies that handle the incentive programs, as well, since you'll need that for your claims.

Installers may offer rates that are lower than banks' too, which will lower your monthly payments, though likely not your total outlay.

'We try to make sure that we are very transparent with the customers as to what that looks like,' said J.W. Peters, co-founder of Solar Power of Oklahoma, one of the state's oldest installers. 'We have some options that are a 25-year loan at a 4.9% interest. But that loan product actually costs us more money to be able to offer to that homeowner. And so therefore, our cost estimate adjusts our baseline costs to adjust for that as well.'

You may find that it makes sense to put up some of the payment in cash. Wirecutter's Erik Erickson carefully considered his options when working out the cost for his system. Eliminating his family's monthly $415 electricity bill was a top priority, and 'basically I'm getting down to $415 a month [in finance payments] if I put $7,000 down on top,' he said, 'which is a chunk of change and was one of the biggest reasons I took a month to deliberate, because this doesn't pencil out without extra money down.'

In the long run, it almost certainly will.

The tax credit is effectively a direct price cut on the cost of going solar. But solar installations also generally pay for themselves over time, through a combination of lowering your electricity bills and a process known as net metering.

Unless you plan to install storage batteries, even after going solar you'll use power from the electrical grid at night, when your solar panels are producing nothing. And in high-demand periods'often summer or winter, when you're cooling or heating your home, respectively'you may draw some electricity from the grid during the daytime, too.

Usually, you'll still get a bill from your utility every month.

But much of the time, your system will produce more electricity than you need'weekdays when nobody is at home, for example, or shoulder months like March or April, when your area has a ton of sunlight and you're not blasting your electricity-sucking air conditioner.

That excess power will go back onto the grid for other customers to use, and your utility will give you credit for the value of that power on your next billing cycle. That's net metering, and with a well-designed system it means you'll wind up paying very little for your electricity over the course of a year.

Over time, the money you save will more than cover the cost of the system and any loan interest.

However, it's important to know how your utility calculates net metering, because that's key to figuring out how fast you'll see a return on your solar investment.

Knowing who provides your power and how the utility's net metering works will make you a shrewder judge of contractors when you're seeking bids.

Who provides the home's electricity is one of the first questions Solar Power of Oklahoma's J.W. Peters asks of prospective customers. Like most states, Peters explained, Oklahoma is served by a mix of publicly owned utilities, municipally owned utilities, and member-owned cooperatives. They use different net metering rates and credit structures'and some don't offer net metering, period.

'We need to know who they have so I can figure that into the calculations,' Peters said. 'We've seen a lot of kind [of] fly-by-night, door-to-door-salesman-type people coming in and knocking on doors in neighborhoods that know nothing about the utility structure in that area. They're selling people systems, and in some cases even installing them, under false pretenses of what that system will do for those customers.' In the worst cases, he said, people have had solar installed, only to learn that they are not allowed to connect to the grid at all'so when the sun goes down, their home doesn't have electricity.

Tom Broderick of Flagstaff, Arizona, talked to four installers when he was going solar in . 'One of them knew what he was talking about'one,' he said. 'Some of them said some really dumb things, and I didn't call them on it, because I wanted to give them the opportunity to say more dumb things and find out what they really knew and what they really didn't.'

Think like him. Understand your utility's net metering program before seeking bids, and as Broderick emphasized, 'Look at multiple installers. Get references. Check their business record with the Better Business Bureau. How long have they been in business? Are they certified?' Ideally that would mean certified by NABCEP, the North American Board of Certified Energy Practitioners.

Anyone researching this topic has likely stumbled upon some free online cost estimators, such as EnergySage's tool.

Through that estimator, EnergySage calculates your potential lifetime savings from going solar based on your address and current monthly electricity bills, after which it solicits free bids from licensed and vetted solar contractors.

Another estimator, the National Renewable Energy Laboratory's PVWatts, calculates your potential solar-energy production based on your address and roof size.

There's also DSIRE, the Database of State Incentives for Renewables & Efficiency, which lists potential sources of low-interest loans, rebates, and other incentives for going solar based on your zip code.

Such cost estimators certainly help. But the reality is that to truly get a sense of the cost and value, you have to decide what you want solar to do for you'what you value most among the many benefits it can bring'and then work within your means to get a system that meets your needs.

Absolutely.

You can do a lot of things to lower your energy bills and carbon footprint that, happily, cost much less than a solar installation.

Consider community solar. You effectively pay for panels that are installed at a solar-production facility. They supply electricity to the grid at large, and you get a credit on your energy bill, much as you would with a system you installed at your house, but the household disruption and soft costs are eliminated.

Community solar is expanding rapidly, with annual growth more than doubling nationwide every year since . 'Community solar has been a major driver of opening market access for folks, particularly people for whom residential solar isn't financially or logistically feasible,' said Gilbert Michaud, assistant professor of environmental policy at Loyola University Chicago and policy division chair of the American Solar Energy Society.

At the end of , the baseline year of the most recent National Renewable Energy Laboratory report (PDF), community solar facilities totalling more than 6 gigawatts of capacity had been installed in 43 states and Washington, DC, with a third of that capacity installed in alone.

However, the distribution of community solar is uneven, with four states'Florida, New York, Minnesota, and Massachusetts'accounting for 75% of it (in terms of wattage) and the top 10 states accounting for more than 90%. Depending on where you live, you may have to do some legwork to find a local project to invest in.

Finally, and for older homes especially, relatively inexpensive upgrades to things like insulation and weather sealing can lower utility bills substantially. We cover many of the options in detail in our guide to home weatherizing. And Michaud pointed out that they too are supported by the Inflation Reduction Act'as part of the $8.8 billion Home Energy Rebates program'and by many state and local programs as well.

When I spoke with Iain Walker of Lawrence Berkeley National Laboratory in , he brought up a way of thinking about green technology that stuck with me.

There are dollar savings to consider, he said, and there are carbon savings'and sometimes the two don't quite add up. A new induction stove would cost him considerably more in electricity each month than his old stove would cost him in gas, he said by way of an example. But its carbon footprint would be much lower, and that in itself is valuable to him.

Homeowner Tom Broderick told us, '[My] motivation is mainly climate change and doing something about it at my personal level,' but 'it did matter that through my retirement, my costs would be lower for electricity.'

Homeowner Larry Gawel is pleased that he's saving money and emissions at the same time: 'Both of them are important to me.'

Wirecutter's Erik Erickson plans to add an EV charger (and an EV) to his system, but 'in a few years, after this is all through, because this is the most expensive project we've ever done.'

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For homeowner Tom Lee, the initial decision to go solar'in Los Angeles, back in 'was basically a dollars-and-cents matter. He was already doing a major home renovation, so it was a sensible time to get the installation done. The system was not cheap, at around $60,000, but 'this house was going to be my forever house, so I figured it's a good idea, right?' he said. 'Especially with all this money coming back to me [from rebates and utility savings].'

But as time and technology moved forward 15 years, so did his appreciation for what he'd done. 'I feel proud that I'm a solar owner,' he said.

This article was edited by Harry Sawyers and Ben Frumin.

As solar energy becomes increasingly popular, keeping your solar panels clean is crucial for maintaining efficiency. That's where solar panel cleaning robots come in handy. Imagine an automated device programmed as per your requirements that will automatically clean your panels without any human intervention.

These robotic devices are a game changer in the field of dry cleaning your panels, making it easier than ever to keep your photovoltaic panels in top condition without the hassle of manual cleaning.

These robots are revolutionizing solar cleaning with features like AI and remote control.

In addition, you will be amazed to know that the solar panel cleaning robot market was valued at over $621.5 million in and is expected to grow at a CAGR of 11.5% from to (source).

The market is driven by increasing demand for solar energy, especially in developing countries, and the Asia Pacific region specifically China and India are expected to dominate the market. These statistics show how fast this segment is making way for itself.

In this article, we'll explore the best 10 solar panel cleaning robots for . You'll learn about the latest advancements in intelligent control and modular design that make these devices so effective. 

Whether you're looking for a portable option or a certified model, we've got you covered with detailed reviews and comparisons to help you find the best robot cleaner for your solar panels. Let us welcome you to the virtual world of robotic cleaning.

Top 10 Picks of Robot Cleaner For

Ecoppia

The world's leader in robotic solar panel cleaning Ecoppia's robots are engineered specifically for large-scale solar farms where manual cleaning is both impractical and expensive. These robots are designed for waterless cleaning.

It combines a soft microfiber and a combination of regulated airflow to eliminate dust. As the company claimed one year of Ecoppia dry cleaning saves water for more than 2 lac people for one year.

Ecoppia's robots operate autonomously and are powered by advanced AI that enables them to clean solar panels without human intervention. The AI algorithms integrated into the system allow for real-time monitoring and adjustments, ensuring that each panel is cleaned thoroughly and efficiently. Additionally, these robots are equipped with solar-powered batteries, making them energy-independent and reducing operational costs.

Ecoppia's robots are made from high-quality, weather-resistant materials. These materials include lightweight, corrosion-resistant alloys, and high-grade plastics designed to face extreme temperatures and UV radiation.

Having the first movers' advantage Ecoppia has 50+ patents grants and has a market in 4 continents with 35+ large-scale sites.

SKILANCER SOLAR

This innovative Indian startup is an idea of IIT Jodhpur alumni. Skilancer Solar is designed for both water-based and waterless cleaning. These robots are providing services for not only large-scale solar farms but also rooftop solar. The water-based systems are particularly effective in regions with heavy dust, while the waterless options are ideal for areas with water scarcity.

These solar are specially programmed in integrating IoT technology allowing for real-time monitoring and control. This allows the robots to be controlled remotely via a centralized platform.

The robots feature corrosion-resistant alloys and durable plastics that can endure constant exposure to sunlight. The brushes and other cleaning components are made from soft but effective materials that ensure thorough cleaning without damaging the solar panels.

Know More: How Often You Should Clean Your Solar Panels

SolarCleano

The F1 by SolarCleano offers an adaptable and efficient cleaning solution. Its ability to clean both wet and dry solar panels. its high-speed operation is capable of cleaning up to 1,600 square meters per hour. 

The robot can be disassembled into four parts, making it easy to transport and reassemble at different sites. It comes with a camera and screen which makes it very convenient to control from a distance.

Its high-end caterpillar tracks ensure it maintains grip and stability across various surfaces, including floating solar panels, which are becoming increasingly popular in India.

Sunpure

Sunpure has established itself as a leader in the solar panel cleaning industry. Offering durable, efficient, and technologically advanced cleaning systems, at the same time specialization in automated solutions for both ground-mounted and rooftop solar panels makes them a versatile choice for solar installations worldwide.

With more than 200 registered patents and 14+ countries presence Sunpure is a to-be leading robotic company. Sunpure integrates cutting-edge technology into their solar cleaning systems, like lightweight design, windproof, UV-modified PBT brush filament, smart obstacle crossing, and twistable body.

SolaBot

Another Indian startup, SolaBot making waves in the industry with waterless, automated solar cleaning solutions. Their robots are designed to operate in extreme weather conditions, making them suitable for a variety of environments. 

Having a presence in 11 states of India SolaBot is also planning to expand internationally in the Middle East and American markets.

SolaBot designed their robots specifically for dry cleaning with long resilience in hazardous circumstances. They have many variants like SB-01, SB-03, and SB-04T which require very less to neglectable men's power, automatic tracker, self-charging, fast response, and real-time monitoring.

Read More: How To Clean Solar Panels Without Water

Airtouch

An advanced linear, water-free robotic solar panel cleaner with wind-blowing technology can clean up to meters on a single charge. 

The robots are designed to operate on a predefined schedule, ensuring that the panels remain clean at all times. They utilize advanced algorithms to optimize the cleaning process, minimizing the time required to clean each panel.

The durability of these robots is a key selling point, as it ensures that they can operate effectively over long periods without frequent repairs or replacements. The robots are equipped with advanced sensors and AI-driven software that allow them to navigate solar farms independently. 

With a 58% sales growth rate, Airtouch is definitely in the industry to disrupt. The company's main production unit is in India, which makes it more adaptive for the Indian market.

Jetsons Robotics

Manual cleaning with water is not a sustainable process with this tagline Jetsons Robotics provides autonomous waterless cleaning. This is specifically designed for commercial solar rooftops.

Jetsons Robotics stands out for its capacity to handle extensive solar installations, making it an ideal choice for utility-scale projects. Their robots are equipped with sophisticated navigation systems, enabling them to clean panels efficiently without human intervention.

The robots are equipped with advanced sensors, AI algorithms, and IoT connectivity. Jetsons is well positioned in the Indian market size of robotic solar cleaning.

NOMADD Solar Cleaning System

The NOMADD (NO Water Mechanical Automated Dusting Device) cleaning method is quite similar to the Ecopia system. The main distinction is the sort of brush used on the panel's surface. Specially designed for the desert area, the NOMADD system does not contain many motors. 

It usually contains only two motors which are used to run the brush horizontally. NOMADD is unmatched at scale because of its patented 'Cleaning Angle' technology. The system's distinctive 'pivoting brush endpoints' provide many major advantages.

The machine can float over misaligned tracks by automatically adjusting the angle. NOMADD has a strong presence in the Middle East, North Africa, and parts of Asia.

Greenlap Robotics

Another Indian startup by IIT Delhi alumni Greenlap Robotics provides advanced robotic solar panel cleaning solutions. It is particularly adept at handling large-scale solar installations, including utility-scale solar farms, where the sheer number of panels makes manual cleaning impractical.

Their robots are engineered to operate in various environmental conditions, making them suitable for a wide range of geographical locations. The cleaning robot's 39 kg weight is spread evenly thanks to its sturdy and broad TPU wheels. It runs on a solar panel frame. 

These robots can be monitored and controlled from anywhere on any device via a web dashboard. Greenlap Robotics has a presence in 7 states across the country.

Aegeus Technologies

A 100% Made in India company specializes in developing autonomous and semi-autonomous robotic systems designed to clean solar panels effectively and efficiently. One of the key specializations of Aegeus Technologies is its ability to offer customized solutions for different types of solar installations. 

The company is also known for integrating cutting-edge AI and machine learning algorithms into its robotic systems. Robots are often made of high-quality aluminium alloys and robust plastics that can face the challenges of outdoor operation. The cleaning mechanisms are non-abrasive, guaranteeing that the solar panels are completely cleaned. 

Innovative Features in Modern Solar Panel Cleaning Robots

Modern solar panel cleaning robots are transforming how we maintain and improve solar energy installations. These revolutionary gadgets include sophisticated features that make them efficient, cost-effective, and environmentally beneficial. Let's look at some of the cutting-edge technologies that are influencing the future of solar panel maintenance.

• AI and Machine Learning Capabilities
• Advanced Sensors and Obstacle Detection

To navigate safely and efficiently, modern cleaning robots are equipped with a suite of advanced sensors. These include:

• LiDAR
• Cameras
• Ultrasonic sensors
• IR sensors
• Water Conservation Technologies
  • Dry cleaning
  • Wet cleaning
  • De-ionized water cleaning
• Integration with Solar Farm Management Systems
• Self-Diagnostic and Reporting Features
  • Data collection on energy output before and after cleaning
  • Monitoring of environmental conditions
  • Performance analysis of the cleaning process

Some Key Things To Consider When Choosing A Solar Robot Cleaner

1. Cleaning speed and coverage area: Fast cleaning speed and wide coverage areas are essential to minimize downtime and ensure efficient cleaning of large solar arrays. If your requirements are not met, then you should avoid purchasing robot cleaners.

2. Cleaning effectiveness (percentage of dirt removed): Another key point for your checklist is ensuring high cleaning effectiveness so that most of the dirt is removed, allowing solar panels to operate at their maximum efficiency.

3.  Water usage (if applicable): If you are purposefully looking for a dry cleaning method then you must consider this. Water-efficient systems reduce operational costs and environmental impact, especially important in regions where water is scarce or expensive.

4.  Energy consumption: Low energy consumption minimizes operational costs and ensures that the energy gains from cleaning exceed the energy used by the robotic system. Always invest in those which give your money a higher value.

5. Durability and Lifespan: A durable system with a long lifespan provides better value for money, reducing the need for frequent replacements and ensuring consistent operation over time. It can minimize your fixed cost for the entire setup.

6. Materials used in construction: High-quality materials improve durability and resistance to environmental factors, leading to fewer breakdowns and a longer operational life. You have to check for those that are sustainable for disposal.

7. Weather resistance: Weather-resistant systems can operate reliably in various conditions, reducing the risk of damage and ensuring continuous operation throughout the year.

8. Warranty and support offered by the manufacturer: A good warranty and strong customer support protect your investment and ensure that any issues are resolved quickly, minimizing downtime and unexpected costs. So always do your research before investing your money in robot cleaners.

9. Maintenance requirements: Systems with low maintenance needs are more cost-effective and convenient, requiring less frequent attention and fewer replacement parts, reducing overall operational costs and time as well.

10. Ease of Deployment and Operation: Easy deployment and operation reduce setup time and labour costs, making the system more user-friendly and accessible for a wider range of personnel, which is important for large-scale operations.

The user-friendliness of a solar panel cleaning robot can significantly impact its overall value. Look for robots that offer:

• Simple installation processes
• Intuitive control interfaces
• Remote operation capabilities
• Integration with existing solar farm management systems
• Compatibility with Different Panel Types
• Various panel sizes and orientations
• Cost-effectiveness and ROI

Conclusion

Solar panel cleaning robots have transformed photovoltaic system maintenance, providing a unique combination of efficiency and creativity. These devices increase energy output and reduce water use and labour expenses. 

As technology advances, we should expect even more innovative features in future cleaning robots. The top ten recommendations for represent the current state of the art, with alternatives to meet various demands and budgets. By selecting the appropriate robot for your setup, you can keep your solar panels clean and productive while increasing your return on investment in clean energy.

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