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Panasonic Solar Panels UK: Your Efficient Energy Solution

Panasonic, a reputable Japanese electronics company, has been making strides in the solar panel industry for many years. In the UK, their solar panels are known for their efficiency and reliability, making them a popular choice for homeowners looking to invest in renewable energy. As a global brand, Panasonic has endeavoured to create solar panels that cater to various needs, offering solutions for different roof types and installation requirements.

One of the most notable solar panel models from Panasonic comes in the form of the 330W module, renowned for its enhanced frame design and monocrystalline cells. These cells offer a maximum efficiency of 19.7% and use a pyramid cell structure for optimal sunlight capture, making them ideal for UK households looking to maximise their solar energy output. Furthermore, Panasonic solar panels come with a 25-year power and product warranty, assuring customers of their durability and long-term performance.

Panasonic's decision to stop producing solar PV panels by the end of 2022 marks a shift in strategy for the company. Although they plan to continue selling third-party-made modules under their brand, the commitment to quality and performance remains unchanged. For those interested in Panasonic solar panels in the UK, it remains crucial to compare multiple installation quotes to find the most competitive price and make the most of the benefits these solar panels offer.

Panasonic Solar Panels UK Overview

Panasonic has a solid presence in the UK market, offering their high-quality solar panels to residential and commercial customers. Known for their efficiency and sleek design, Panasonic solar panels have become a popular choice amongst UK homeowners and businesses seeking to invest in solar energy.

One of Panasonic's main selling points is the use of their unique HIT (Heterojunction with Intrinsic Thin-layer) technology, which has significantly increased the efficiency of their solar panels. The efficiency of Panasonic solar panels ranges from 19.2% to 22.2%. This increased efficiency means that consumers can generate more power in a smaller space, making them an excellent choice for those with limited roof space.

Panasonic solar panels are also designed to deliver excellent performance at high temperatures2. This is particularly important in the UK climate, where temperatures can swing dramatically from mild to extremely hot. With a water drainage frame and light capturing technology, Panasonic panels are also built to maintain performance during wet and overcast weather conditions, which are common in the UK.

Some of the models of Panasonic solar panels available in the UK market include:

  • N330 Photovoltaic Module HIT: This module has a power output of 330W, a panel efficiency of 19.7%, high-efficiency performance at high temperatures, a water drainage frame, and light capturing technology.
  • N335 Solar Module HIT: The N335 module delivers a power output of 330W, making it ideal for those seeking a powerful yet compact solar panel. It measures only 160cm in length but delivers up to 25% more power compared to similarly sized panels.
  • 410 W Solar Panel: This high-efficiency solar panel offers a power output of 410W and an efficiency of 22.2%. It is compatible with Panasonic's Evervolt battery, making it an attractive option for those seeking to store excess solar power.

The cost of Panasonic solar panels in the UK generally ranges from £2.61 to £3.45 per watt, making them a reasonably priced option for those seeking high-quality, efficient solar panels. However, prices can vary depending on factors such as installation costs and the retailer.

Key Features and Benefits


Panasonic solar panels are known for their high efficiency, with their range offering between 19.2% and 22.2% efficiency rate. The 330W Panasonic Solar Panels, for example, have a module efficiency of 19.7%. Their pyramid cell structure design further enhances sunlight capture, contributing to their overall efficiency.


Panasonic solar panels are reliable and durable. Having produced solar PV panels since 1975, initially under the Sanyo brand, the company has established a reputation for longevity and quality. Their solar panels are designed to withstand various weather conditions, ensuring long-term performance.

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    When investing in Panasonic solar panels, customers can be assured by the comprehensive warranty offered. They provide a 25-year power warranty, as well as a 25-year product warranty. This level of warranty coverage demonstrates Panasonic's confidence in their product quality and performance.

    Heterojunction Technology

    Panasonic incorporates Heterojunction (HIT) technology in their solar panels, setting them apart from competitors. HIT technology combines thin layers of amorphous silicon with high-quality monocrystalline silicon solar cells. This combination leads to higher efficiency, increased thermal stability, and improved overall panel performance.

    Product Range

    HIT N Series

    Panasonic's HIT N series of solar panels offer high efficiency and power output for domestic installation in the UK. These modules are designed with a unique heterojunction technology, combining mono-crystalline and amorphous layers to provide higher power outputs and smaller panels. The Panasonic HIT N 245W provides a compact size that is suitable for small or complicated roofs.

    Key specifications include:

    • Power: 245W
    • Cell type: Monocrystalline
    • Number of cells: 96 solar cells
    • Efficiency: Up to 19.7% module efficiency

    HIT Kuro Series

    The HIT Kuro series features an enhanced frame design with a matt-black finish, offering both improved aesthetics and performance. The N330K KURO solar panels have a power output of 335W, an efficiency of 19.7%, and are guaranteed to be achieving 86.2% of that original efficiency after 25 years. This series also utilises the heterojunction technology, allowing for higher power generation in smaller-sized panels.

    Notable specifications include:

    • Power: 330W
    • Finishing: Enhanced new frame design (40mm) with a Pyramid cell structure design for optimal sunlight capture
    • Cell type: Monocrystalline
    • Number of cells: 96 solar cells
    • Efficiency: 19.7% module efficiency

    Panasonic solar panels are suitable for a variety of roofs and are backed by a 25-year product warranty, making them a reliable and long-term investment for homeowners in the UK.

    Cost and Savings

    Pricing Information

    Panasonic HIT solar panels typically cost between £275 and £350 per module before installation. These panels come with a 25-year power warranty and a 25-year product warranty. The average domestic solar PV system has a capacity of 3.5kWp and may cost around £5,500, including installation.

    Potential Savings

    Investing in solar panels can lead to significant energy bill savings for households in the UK. The average family can potentially save up to £1,000 per year. For a three-bedroom household, using half of the solar power produced by the panels may result in savings of £450 per year. The other half of the solar power can either be stored in a solar battery, which could lead to additional savings of £175 per year, or exported to the grid using the Smart Export Guarantee (SEG).

    In summary, Panasonic solar panels offer a valuable investment opportunity for UK households. With competitive pricing and significant potential savings on energy bills, these panels are an attractive option for those looking to reduce their carbon footprint and make a positive impact on the environment.

    Installation Process

    The installation process of Panasonic solar panels in the UK involves several key steps to ensure optimal performance and durability. First, a thorough desktop survey and obtaining three quotes from different suppliers are recommended to find the best solution tailored to the specific needs of your property. It's also a good time to have your roof surveyed for structural stability and any maintenance that may be required prior to installation.

    Panasonic offers two main types of solar panel technologies: Standard HIT and Double HIT. The Double HIT panels, with their unique technology and bifacial structure, allow the panel to generate electricity from both sides, making them the best-performing in their range.

    Following the selection of the appropriate panel technology, the installation process comprises of several steps:

    1. Setting up scaffolding: This ensures the safety of the installation team during the process while protecting your property from any potential damage.
    2. Attaching fixing brackets: Roofers will attach the fixing brackets on the rafters of your roof, which is why it's critical to have a proper surveyor check the integrity of the roof prior to installation.
    3. Positioning solar panels: The installer will place the solar panels onto the mounting system without fully securing them initially, then adjust the angle of the panels based on the location for maximum sunlight exposure.
    4. Securing solar panels: Once the correct angle is achieved, the installer will tighten up all the bolts and nuts, securing the panels in place.
    5. Wiring the solar panels to the inverter: The solar panels are then connected to the inverter, which converts the direct current (DC) generated by the panels into alternating current (AC) for use in your home.

    In conclusion, the installation process of Panasonic solar panels in the UK is a systematic process that requires thorough planning, appropriate technology selection, and expert execution to achieve optimal results.

    Customer Reviews and Case Studies

    Panasonic solar panels have been available in the UK for quite some time, and customers generally have positive experiences with their performance and efficiency. They are available in a range of options, including slimmer panels for small or complicated roof spaces and higher efficiency panels to maximise energy generation.

    Panasonic's solar panels have an efficiency rating ranging between 19.2% and 22.2%, with a 25-year workmanship and performance warranty. Their offerings include the N250 Slim, which is 160cm in length and 80cm wide, making them well-suited for smaller roofs and more complex installations. These panels have a power output of 250W and a nominal efficiency of 19.8%.

    UK customers praise the combination of Panasonic's high efficiency and competitive pricing. On the EnergySage Marketplace, Panasonic solar panels cost between £2.61 and £3.45 per watt – that's £15,660 to £20,700 for a 6 kW system before any applicable government incentives.

    One notable case study involving Panasonic solar panels in the UK is a residential installation on an older property with a small roof space. In this instance, the homeowner opted for Panasonic HIT N340 panels, which were recommended as the best option for an older roof. The installation demonstrated how Panasonic's solar panels can adapt to various roofing situations while still providing excellent performance and generating clean energy for the home.

    To conclude, Panasonic solar panels have garnered positive customer reviews and case studies in the UK. Users appreciate their efficiency, adaptability to different roof spaces, and long-lasting warranty. These features, alongside competitive pricing, make Panasonic a popular choice for homeowners looking to invest in solar power.

    Competitor Comparison

    Panasonic HIT N340 solar panels are known for their high efficiency and suitability for older roofs due to their lighter weight. In this section, we will compare the Panasonic solar panels to some of their top competitors in the UK market.

    SunPower's Maxeon 3 is a leading competitor with a strong reputation for efficiency. These solar panels boast a solar efficiency of up to 22.6%, making them one of the most efficient panels available. On the other hand, Panasonic HIT N340 solar panels offer a slightly lower efficiency, with their highest coming in at 20.3%.

    Another competitor worth mentioning is REC. Their solar panels, particularly the REC Alpha Series, also provide a high level of efficiency, albeit lower than SunPower's Maxeon 3. REC Alpha Series panels have an efficiency of up to 21.7%, placing them between SunPower and Panasonic in terms of efficiency.

    Pricing often plays a major role when choosing solar panels. In this aspect, JA Solar emerges as the more budget-friendly option. While specific pricing for Panasonic panels may vary based on location and installation, they are generally in the mid-range price bracket, with SunPower and REC being at the higher end of the pricing spectrum.

    When it comes to warranty, Project Solar Evolution Titan 445 solar panels from the UK-based Project Solar take the lead with their generous product warranty. Panasonic offers a 25-year product warranty for their HIT N340 solar panels, while SunPower and REC also provide solid 25-year performance warranties.

    In summary, the Panasonic HIT N340 solar panels hold their own in the UK market, with a combination of high efficiency, compatibility with older roofs, and competitive warranty terms. Although they might not be the absolute leaders in efficiency or pricing, their overall offering represents a strong choice for customers seeking quality solar panels in the UK.

    Final Thoughts

    Panasonic has been a reputable brand in the solar panels industry, known for its high-quality and efficient Solar HIT range of modules. However, the company announced in 2021 that it is planning to stop manufacturing solar photovoltaic (PV) panels by the end of the fiscal year 2022. Despite this, they will continue to sell third-party-made modules under their brand.

    Panasonic solar panels are known for their efficiency, ranging from 19.2% to 22.2%. Their offering includes the HIT N330K KURO Black, which is a solar panel that provides a power output of 335W and an efficiency of 19.7%, ensuring that it can be a valuable addition to homes with various roof layouts.

    Moreover, Panasonic solar panels come with an extensive 25-year workmanship and performance warranties, ensuring customers that their product will remain a reliable investment even years down the line. They guarantee that their panels will still be achieving 86.2% of their original efficiency after 25 years.

    As for the cost, UK customers can expect to pay between £2.61 and £3.45 per watt for Panasonic solar panels. This cost makes them a competitive option in the market, with the potential for significant long-term savings and environmental benefits from choosing and installing them.

    In conclusion, although Panasonic is exiting the solar manufacturing industry, their solar panels remain a viable choice for UK customers looking for efficiency, reliability, and extended warranty coverage. With a wide range of models and output capacities, they offer flexibility for various types of homes and roofs, ensuring customers can find a solution that suits their unique requirements while contributing to a greener future.

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    Mark McShane
    Content Writer
    Mark McShane is a seasoned professional in the solar industry and the owner of Skills Training Group, a leading provider of solar training and education. With years of experience in the field, Mark has developed a deep understanding of the latest trends, technologies and best practices in the industry. His expertise and passion for solar energy have helped countless professionals develop the skills and knowledge needed to succeed in the fast-growing field of solar energy. Whether you’re an aspiring solar professional or an experienced industry veteran, Mark is an excellent resource for anyone looking to enhance their skills and knowledge of the solar industry.
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