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The 3 Best Flexible Solar Panels

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Author Image Written by Tamara Jude Updated 12/06/2024

Interested in using solar energy to power your recreational vehicle (RV), boat, or campsite equipment? Consider investing in flexible solar panels. Though smaller than our recommended residential solar panels, these panels offer the convenience of renewable energy in a portable package.

We have researched the best flexible panels available, including those from the best regarded solar companies. Read on to compare our top panels from Sunrun, Blue Raven, and Solar Energy World and learn how they can help power your next off-grid adventure.

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3 Best Flexible Solar Panels



Blue Raven Solar

4.4

Blue Raven Solar has one of the best reputations for reliability and trustworthiness. It has won awards for its team and CEO, and customer reviews report great customer service and prompt installations. The company also stands out for its in-house financing, which includes 18 months of free solar energy.

Out of all solar brands in the market, 6.5% of our survey respondents chose Blue Raven.

How We Scored Blue Raven Solar

Blue Raven received 4.4 out of 5 stars according to our rating system. The company scored the most points for its customer service reputation and warranty coverage. It also earned points for providing all standard solar panel services but lost some due to its limited financing options and lack of roof leak coverage.

  • Solar Equipment and Services (18 out of 25 points): Blue Raven offers solar panel and battery installation, active monitoring services, and energy audits. However, it doesn’t offer solar roofs, EV chargers, or additional roofing services. 
  • Warranty and Performance Guarantees (22 out of 25 points): The company offers top-of-the-line warranties, including a 25-year workmanship warranty. The company earned points fo providing a performance guarantee, but its guarantee is shorter than many other providers. However, it doesn’t provide any roof leak coverage. 
  • Brand Reputation and Professional Certifications (13 out of 15 points): Blue Raven has high customer review ratings on its BBB profile and other popular review sites. The company uses in-house installers but doesn’t ensure they’re NABCEP-certified, which made it lose some points in this category.
  • Financing Options (12 out of 15 points): Blue Raven offers some of the best in-house financing of the companies this list, but it limits this financing to solar loans. You may want to consider a different provider, such as Sunrun, if you’re looking for a lease or PPA.
  • Industry Experience (7 out of 10 points): Blue Raven has less experience than other providers, with only 10 years in the industry.
  • State Availability (7 out of 10 points): The company limits its service area to 19 states.

Warranty and Financing

Warranty

A Blue Raven system has a 25-year product warranty, a 10-year workmanship warranty, and a two-year production guarantee.

Financing Options

✔ Full purchase
✔ Loan

State Availability

Available in: Colorado, Florida, Idaho, Illinois, Indiana, Kansas, Kentucky, Michigan, Minnesota, Missouri, Nevada, North Carolina, Ohio, Oregon, South Carolina, Texas, Utah, Virginia, Washington

Reputation and Reviews

Blue Raven has won numerous awards from Comparably, a site known for its company culture and reputation reviews. It also ranked No. 20 on Glassdoor’s Best Place to Work in the USA in 2021.

Blue Raven is accredited by the BBB and currently holds an A+ rating. We noted that customers praised the knowledgeable staff and prompt installation but cited poor communication after completing projects. We analyzed several consumer reviews and found that some of these issues stem from the company’s financing department and third-party installers.

Read our review of Blue Raven Solar for more information.

Solar Energy World

4.4

Solar Energy World (SEW) is one of the most robust and well-regarded solar installation companies. It boasts several impressive features, such as its 30-year manufacturer’s warranty. Its service area is limited, and it doesn’t offer energy auditing services. We like that SEW discloses what solar panels it primarily works with and that the panels are from trusted, quality brands such as Qcells and Silfab.

Roughly 11% of our surveyed solar users purchased their system from Solar Energy World.

How We Scored Solar Energy World

SEW scored 4.4 out of 5 stars according to our methodology. The company received many points because of its warranty, which is longer than most other solar companies’ warranties. SEW offers a 30-year manufacturer’s warranty on all its solar panels and inverters, whereas many providers only offer 25-year warranties.

  • Solar Equipment and Services (18 out of 25 points): The company is an ideal option for many basic solar products and services, such as solar panels and battery installation. It lost points because it doesn’t install EV chargers or perform energy audits.
  • Warranty and Performance Guarantees (19 out of 25 points): SEW’s manufacturer and labor warranties are standout features, but the company doesn’t include any production guarantees with its work. 
  • Brand Reputation and Professional Certifications (15 out of 15 points): The company’s reputation is one of the best, with high BBB and Google Reviews ratings. We also found no active alerts or lawsuits.
  • Financing Options (13.5 out of 15 points): SEW offers all possible solar payment options but doesn’t provide an in-house financing department. 
  • Industry Experience (8 out of 10 points): The company has been in business since 2009, so it received most of the points in this category.
  • State Availability (6 out of 10 points): SEW limits its service area to eight East Coast states.

Pros and Cons

Pros Features an extensive solar product catalog with trusted brands Includes free active monitoring Hires NABCEP-certified installers and designers Cons Reviews mention communication issues with staff Warranty coverage varies by solar panel brand Doesn’t offer a power production guarantee

Warranty and Financing

Warranty

SEW offers a 30-year manufacturer’s warranty on all purchased solar panels and inverters. However, coverage varies by brand, and the company doesn’t guarantee them with every panel option. 

Financing Options

✔ Full purchase
✔ Loan
✔ Lease
✔ PPA

State Availability

Available in: Washington, D.C, Delaware, Florida, Maryland, New Jersey, North Carolina, Pennsylvania, South Carolina, and Virginia

Reputation and Reviews

The company landed on Solar Power World’s 2023 Top Solar Contractors List in the No. 10 spot.

The BBB accredits SEW, and the company holds an A+ rating. Former customers praise the company for its professionalism, assistance with applying for financial incentives, and smooth installation process. However, some reported discrepancies in finances and scheduling.

Sunrun

4.5

We like Sunrun for its four financing options, including its unique leasing options if you don’t want to own your system. This stands out to us because the other companies on this list don’t offer as many options.

Prepaid and leased systems also include a 25-year warranty with system service and maintenance, ongoing monitoring, and theft insurance. The company even offers financing plans for quality monocrystalline solar panels and products from trusted brands such as LG.

How We Scored Sunrun

Sunrun earned 4.4 out of 5 stars based on our methodology. The company gained many points for its positive reputation, comprehensive leasing options, and well-rounded warranty coverage. It lost some points for is limited service selection.

  • Solar Equipment and Services (15 out of 25 points): Sunrun provides solar panel and battery installation but uses third-party installers. Though this is becoming an industry standard, in-house installers typically yield better communication and quality. The company also doesn’t provide roofing services or energy audits but does offer quality active monitoring assistance. 
  • Warranty and Performance Guarantees (19 out of 25 points): Sunrun offers quality warranties, such as its 25-year manufacturer and labor warranty, but doesn’t include a performance guarantee. 
  • Brand Reputation and Professional Certifications (13 out of 15 points): Sunrun has one of the higher customer BBB ratings we’ve encountered, and the company maintains an overall positive customer reputation online.
  • Financing Options (13.5 out of 15 points): The company doesn’t offer any in-house financing but provides more warranty coverage for customers interested in solar leasing than other providers, such as Palmetto.
  • Industry Experience (9 out of 10 points): Sunrun holds 17 years of experience in the solar industry, making it a veteran compared to a newer company such as Blue Raven Solar.
  • State Availability (8 out of 10 points): The company only serves 18 states.

Pros and Cons

Pros Provides system monitoring that signals issues with your system Offers diverse financing options to suit various budgets Provides EV and solar battery solutions Cons Limited online information on solar incentive disqualification with leases Requires added costs for the same coverage plans as leased and prepaid customers Varies solar battery availability by state

Warranty and Financing

Warranty

Sunrun backs its systems with a 10-year comprehensive warranty which includes product, roof penetration, and workmanship coverage.

Financing Options

✔ Full purchase
✔ Loan
✔ Lease
PPA

State Availability

Available in: California, Colorado, Connecticut, Florida, Hawaii, Illinois, Massachusetts, Maryland, Nevada, New Hampshire, New Jersey, New Mexico, New York, Pennsylvania, Rhode Island, South Carolina, Texas, Vermont, plus Washington, D.C. and Puerto Rico.

Reputation and Reviews

The company earned DroneDeploy’s 2022 Guardian of Safety Award for incorporating drone technology in its site assessments. In 2021 and 2022, Sunrun was recognized by Comparably with 14 awards. Its accolades include Best CEOs for Diversity 2022, Best Company Culture 2021, and Best Company for Women two years in a row.

Sunrun currently holds an A+ rating from the BBB and is accredited. Former customers praised the comprehensive coverage for leased systems but complained about delayed installations, poor customer service, and poor communication with project managers. Additionally, some customers note being confused by Sunrun’s leasing and PPA options, though they also mention Sunrun is willing to discuss and clarify these plans.

Best for RVs: Renogy 175-Watt, 12-Volt Flexible Solar Panel

Score: 94 out of 100

Renogy’s 175-watt flexible solar panel tops our list thanks to its high power capacity and efficiency, making it an excellent choice for recreational vehicles (RVs). This highly flexible panel is ideal for installations on camper tops, back windows, or other uneven surfaces.

Pros

  • Has a high power capacity ideal for RVs
  • Offers up to 248 degrees of flexibility
  • Provides 17.3% efficiency

Cons

  • Must be sent in for technical support
  • Is more expensive than similar flexible models

Panel Details

This monocrystalline panel is portable and efficient. It weighs 6.2 pounds, making it light enough for safe installation on camper and RV roofs. Its 17.3% efficiency rate is higher than standard flexible panels, which typically fall between 10% to 15% efficiency. Solar panel efficiency represents how effectively a solar panel absorbs sunlight and converts it into usable energy. The higher the percentage, the better the performance and power generation. 

This panel’s ethylene tetrafluoroethylene (ETFE) polymer surface has high transparency for better light conversion and an anti-scratch surface for protection. It’s waterproof and resistant to extreme weather, including high winds and snow loads. The panel design includes six grommets and MC4 connectors for easy installation. These are the standard connectors in the solar industry and make it easier to string together multiple solar panels. 

This panel model comes with a five-year warranty for workmanship and material. This includes protection against defects or issues resulting from poor manufacturing or faulty materials. You’ll also receive a 25-year power warranty that guarantees performance at the following thresholds: 

  • 95% output coverage after five years
  • 90% output coverage after 10 years 
  • 80% output guarantee after 25 years

Renology’s Technical Support team will test and repair your panels if they fall below these thresholds.


Most Flexible: Renogy 100-Watt, 12-Volt Flexible Solar Panel

Score: 92 out of 100

Renogy’s 100-watt, 12-volt model is one of the most flexible solar panels on the market. It easily installs on most curved surfaces, with up to 248 degrees of bendable angle.

Pros

  • Offers the highest flexibility angle
  • Weighs only 4.2 pounds
  • Works well for smaller solar projects such as boats or cars

Cons

  • Has a lower efficiency than other panels in our review
  • Provides limited instructions for installation

Panel Details

The Renogy 100-watt panel offers many of the same features as the 175-watt version but in a smaller version. These panels work best for smaller solar projects such as campsites, boats, and vehicles. They weigh 4.2 pounds and are only 0.08 inches thick, offering a low-profile with ample power. This panel provides 14.9% efficiency, which aligns with the industry standard but ranks lower than other panels in our review. 

Similar to the 175-watt version, this panel uses an ETFE polymer for maximum energy absorption and protection. The 100-watt panel is waterproof, dustproof, and resistant to extreme weather conditions. The panel includes MC4 connectors, six grommets, and silicon adhesive for installation. 

This Renogy 100-watt model includes a five-year warranty for workmanship and material and a 25-year power warranty with a promised 80% power capacity threshold at its conclusion. 

Renogy also offers this panel in a flexible solar panel kit to make installations even easier. Each kit includes two solar panels, a charge controller, and connector cables. The charge controller prevents your panels from overcharging or undercharging. It also sends excess energy to a solar battery for later use.


Best for Boats: HQST 100-Watt, 12-Volt Flexible Solar Panel

Score: 86 out of 100

The HQST 100-watt panel is waterproof and has a compact solar cell design, making it an excellent choice for boat enthusiasts. 

Pros

  • Has a compact size ideal for boats
  • Provides a high efficiency of 23%
  • Is waterproof and dustproof

Cons

  • Doesn’t include a charge controller
  • Uses a less protective PET polymer

Panel Details

HQST’s 100-watt flexible solar panel stands out for its innovative monocrystalline solar cell technology. The company includes more solar cells on the panel surface by increasing the standard five busbars to nine. Busbars are the thin rectangular strips in the front and back of solar panels. These strips conduct the direct current (DC) energy that’s produced after sunlight is converted.

Increasing the number of busbars improves conductivity, reduces power loss, and increases power production. HQST’s model offers an impressive 23% efficiency and has a curve radius of 30 degrees, which is the industry standard for bendable panels. 

This panel uses polyethylene terephthalate (PET), which is less durable than ETFE. This results in a shorter life span: ETFE lasts a minimum of 10 years while PET lasts a minimum of five. Despite the difference in polymer, this panel protects against water and dust, making it ideal for marine applications. The 100-watt model also offers high wind and snow protection. 

HQST includes a one-year material and workmanship warranty, one of the lowest on our list. This model is backed by a 25-year power output warranty that offers the following power guarantees: 

  • 95% efficiency rate after five years
  • 90% efficiency rate after 10 years
  • 80% efficiency rate after 25 years

Best Universal Design: WindyNation 100-Watt, 12-Volt Flexible Solar Panel

Score: 85 out of 100

The WindyNation 100-watt panel has a universal design that works with most outdoor and off-grid situations. This panel also regulates your battery use, helping to keep your panels running longer. 

Pros

  • Includes a blocking diode to reduce unnecessary battery discharge
  • Is less expensive than other flexible panels
  • Weighs only 4 pounds

Cons

  • Uses PET coating
  • Includes only a one-year manufacturer’s warranty

Panel Details

This 100-watt monocrystalline panel provides efficient solar power for most outdoor installations, whether traveling by car or camping out in the woods. It offers up to 19% efficiency, weighs only 4 pounds, and has a thickness of 0.1 inches, making it light enough for most outdoor installations. Its 30-degree flexibility accommodates most curved surfaces. 

This panel uses PET polymer, which means it’s more susceptible to corrosion and cracking. However, it’s more affordable than ETFE options. Additional features include a blocking diode to prevent unnecessary battery discharge. It also prevents the battery from overcharging during the day. This WindyNation panel is water-resistant, making it suitable for use during inclement weather. This panel can be installed various ways, including via grommet holes, adhesive, or velcro.

The WindyNation model only includes a one-year manufacturer’s warranty but offers a 25-year performance guarantee. Below is a breakdown of the guaranteed output thresholds: 

  • 95% efficiency rate after five years
  • 90% efficiency rate after 10 years
  • 80% efficiency rate after 25 years

What Are Flexible Solar Panels?

Flexible solar panels offer the benefits of a traditional solar system in a more portable package. Unlike rigid solar panels used in home installations, flexible solar panels are thinner alternatives for off-grid and mobile installations. They aren’t powerful enough to run a house but provide adequate power for boats, RVs, campers, or camping sites. 

Flexible panels are ultra-thin, lightweight panels that are easily installed. They’re also bendable, making them easier to attach to a curved roof or window. Typical flexible panel installation involves using adhesive tape or velcro to mount the panels, compared to the stiff mounting racks used for traditional rooftop installations. 

Types of Flexible Solar Panels

Similar to traditional solar panels, flexible panels come in three types: monocrystalline, polycrystalline, and thin-film. 

  • Monocrystalline (mono) panels: These panels have higher efficiency and power production than any other type of solar panel. Due to their high-quality construction and energy production, they’re the most expensive panel option. They’re constructed with silicon wafers to help with sunlight absorption. Monocrystalline cells are cut from a single, pure silicon cell, which is ideal for optimal energy absorption. 
  • Polycrystalline (poly) panels: These more affordable panels provide lower power production than mono options. Like mono panels, poly panels use silicon wafers in their design. Poly cells are composed of fragmented silicon cells, which create imperfections that reduce the panel’s efficiency. Since poly panels provide less power, you’ll need more panels in your installation to meet your energy needs.
  • Thin-film solar panels: Thin-film panels offer the lowest power production and efficiency but are the cheapest. Unlike monocrystalline and polycrystalline options, thin-film panels use thin layers of photovoltaic material instead of silicon wafers. These panels also have a shorter life span than mono and poly options.

Flexible vs. Traditional Solar Panels

Traditional solar panels have better power production and efficiency than their flexible counterparts. They’re sturdier, made to last 20 or more years, and can handle extreme weather conditions due to their weight and construction. However, these panels aren’t portable and must be installed with mounting racks on your roof.

Flexible solar panels work best for off-road and recreational projects. Their added flexibility makes them perfect for nontraditional installations such as on campers, tents, and yachts. Compared to traditional panels, flexible options are less durable and efficient. Because they’re thinner than residential panels, they can’t withstand long-term exposure to the elements. Flexible panels aren’t ideal for houses since they have limited power production. 

Pros and Cons of Traditional Solar Panels

Pros

  • Last 25–30 years
  • Provide higher efficiency and power production
  • Withstand long-term exposure to various weather conditions

Cons

  • Have a rigid construction
  • Require permanent installations on the ground or rooftop
  • Weigh too much for portable installations

Pros and Cons of Flexible Solar Panels

Pros

  • Can be installed on curved and uneven surfaces
  • Doesn’t require professional installers
  • Are lightweight and portable

Cons

  • Are less durable and have shorter life spans
  • Produce less energy than residential options
  • Not protected by long-term warranty coverage
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What To Look For in Flexible Solar Panels

You’ll need to find flexible solar panels that work best for your specific project. Consider your power needs, installation location, and the weight limit of your RV, boat, or car. Here’s a breakdown of factors to consider when looking for the best flexible solar panels.

Cost

High-quality, monocrystalline flexible panels cost $130–$225 for 100-watt options. Larger capacity models cost more, with prices between $275 and $600. These prices represent the cost per solar panel. You may need multiple panels or additional accessories for your solar system, including a solar battery to store your excess energy. 

Some manufacturers, such as Renogy, offer flexible solar panel kits to make the solar panel installation process easier. Most solar panel kits include solar panels, a charge controller, and connecting cables. Flexible panel kits start at around $220 for 100-watt kits and can run as high as $800 for high-capacity 350-watt options. 

Most flexible solar panels are available through panel manufacturers’ websites and online retailers such as Amazon. 

Durability

Flexible solar panels have shorter life spans than conventional solar panels, lasting five to 10 years on average. Choosing panels made from durable polymer substances ensures your panels will last as long as possible. These substances protect the photovoltaic cells (PV cells) and increase panels’ longevity. The most common polymers are ethylene tetrafluoroethylene (ETFE) and polyethylene terephthalate (PET). PET has been the standard polymer for flexible solar panels. ETFE offers better protection against corrosion, longer panel life span, and improved light absorption. However, ETFE panels cost more than PET alternatives. 

You’ll need to check the official manufacturer’s documentation if you’re looking for panels with waterproof or dust-resistant protection. Some panels aren’t made with this protection and will omit these labels. Only flexible solar panels with these specified features will protect against dust and water. 

Efficiency

Most flexible solar panels have lower efficiency ratings than their traditional counterparts. Expect 10%–15% efficiency from typical flexible solar panels. Some high-quality flexible panels have efficiencies as high as 23%–25%. 

Flexibility

Flexible solar panels work best for campsites, recreational vehicles, and boats due to their flexible design. Unlike traditional, immovable solar panels, flexible panels can bend to install on uneven surfaces on a boat, RV, or car. Look for flexible solar panels with at least a 30-degree bending angle (or curve radius), which is the industry standard. Some flexible panel manufacturers, such as Renogy, produce panels with a larger curve radius to make the panels more adaptable to curved roofs. 

Warranty

Flexible panels have a much shorter life span than conventional solar panels, so their warranty coverage is also shorter. High-quality panels will include a five-year warranty covering material and workmanship. They may also include a power production guarantee, which guarantees a certain production level for a particular time frame, but these are less common. Top-quality flexible panels include coverage for up to 25 years. 

Wattage

Choose flexible solar panels that meet your power needs. Hundred-watt flexible solar panels work well for smaller installations, such as boats, for up to three hours. Look for panels that produce 175 watts and higher if you need to power an RV. The higher the total wattage, the higher the price. You can also increase the number of panels in your installation to meet your power output requirements.

Weight

Portability is one of the main advantages of using flexible solar panels. Flexible panels weigh less than other portable options, around 3–5 pounds. This is the average weight for 100-watt panels. Two-hundred- to 300-watt options could weigh as much as 8 pounds. However, this weight is still significantly less than traditional solar panels.


Our Conclusion

Flexible solar panels allow you to apply the benefits of renewable energy to your outdoor leisure activities. Although flexible panels offer less power production and efficiency than conventional panels, they work well for small solar projects and recreational vehicles. Their portability and flexibility make them perfect for an RV’s roof, a camper’s back window, or a car’s hood. We recommend comparing at least three brands before buying.


FAQ About Flexible Solar Panels

Are flexible solar panels more efficient than conventional panels?

No, flexible solar panels are not more efficient than conventional panels. Conventional panels offer up to 22% efficiency while flexible panels offer 10%–15% efficiency.

Are flexible solar panels as good as rigid panels?

No. Flexible solar panels are less durable, less efficient, and produce less power than rigid panels. However, they’re ideal for small solar projects such as RVs, camping sites, and boats, thanks to their adaptability and portability.

What is the life span of a flexible solar panel?

Flexible solar panels have an average life span of five to 10 years, while conventional solar panels last 25–30 years.


Our Rating Methodology

We are committed to providing comprehensive and unbiased reviews to our readers. This means earning your trust through transparent reviews and data to back up our ratings and recommendations. Our rating system for solar providers is on a 100-point system based on five factors:

  • Payment options (40 points): Options include purchase, loan, lease, and Power Purchase Agreements (PPAs). Companies receive points for each of the four options they provide.
  • Solar services (30 points): Does the company provide in-house installation of solar panels and battery backups? Can the company also monitor energy production and perform energy-efficiency audits to ensure system performance? The more options available, the higher the score. 
  • Warranty options (10 points): The success of a residential solar system depends on the workmanship, performance guarantees, and length of product coverage. The more warranties a company offers, the higher the score it receives. 
  • State availability (10 points): We award the most points to companies with the broadest service area and state availability.
  • Reputation (10 points): We factor in how the Business Better Bureau (BBB) scores each company. We deduct points for any alerts or pending lawsuits.

To share feedback or ask a question about this article, send a note to our team at reviews@thisoldhousereviews.com.