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Everything you need to know about Panasonic solar panels
Written by Max Kennerk, SolarCommission.Org
Updated 9-20-25
Panasonic is a well-established global electronics manufacturer with a diverse range of products, including solar energy solutions. With a long history in the technology and energy sectors, the company has been a prominent player in solar energy for decades.
Panasonic’s History in the Solar Market:
Panasonic entered the solar market in the 1970s and has been an innovator in renewable energy technology ever since. They are known for their research and development in the solar industry, producing high-efficiency solar panels, energy storage systems, and related technologies. Over the years, they’ve collaborated with other energy firms to develop cutting-edge solar solutions and maintain a focus on sustainability and reducing carbon footprints.
Their solar panels are particularly popular for residential use (primarily for their high quality and high power per sf), and they have a strong presence in various markets worldwide, including Europe, North America, and Asia.
Panasonic Solar Equipment:
Panasonic offers a range of solar panels under the EverVolt brand, with several series designed for different energy needs:
EverVolt Solar Panels (EverVolt 350-430W):
HIT Technology: Panasonic's HIT (Heterojunction with Intrinsic Thin-layer) solar technology combines the benefits of both monocrystalline and thin-film solar cells. This results in a high-efficiency rate and excellent performance, even in partial shade or high-temperature environments.
High Efficiency: Panasonic's panels are known for their high efficiency, often reaching around 22.2% efficiency, which is very competitive in the solar market.
Durability and Performance: These panels perform well over time, with lower degradation rates compared to many competitors, offering a long lifespan.
Panasonic also offers Energy Storage (EverVolt Battery Storage Systems) and Inverters:
Along with solar panels, Panasonic also offers their own battery storage and inverter systems. Some consumers prefer the idea of having one brand for all the major components of their system.
Pros of Panasonic Solar Panels:
High Efficiency: Their EverVolt lineup provides higher energy conversion rates, making them a great option for homeowners or businesses with limited roof space for solar.
Long Lifespan & Durability: Panasonic solar panels are known for their reliability, with an industry-leading warranty offering 25 years for performance and product.
Low Temperature Coefficient: This makes their panels ideal for hot climates, as they experience less power loss in high temperatures compared to conventional panels.
Good Warranty: Panasonic offers a 25-year product and performance warranty, giving peace of mind to buyers about the long-term reliability of their products.
Proven Brand: Being part of a reputable multinational company, Panasonic has a strong track record and global support infrastructure for customers.
Cons of Panasonic Solar Panels:
Higher Initial Cost: Due to their high efficiency and advanced technology, Panasonic panels can be more expensive upfront than other brands, making the initial investment higher.
Availability: Depending on the region, Panasonic panels may not be as readily available or as widespread as other brands. There have been no availability issues among Indiana installers.
Limited Model Variety: While their HIT technology is highly regarded, there are fewer models compared to other brands, which could limit options for certain specific needs or budget constraints.
Performance in Low Light: While they are great in partial shade and high temperatures, their performance in extremely low-light conditions (like cloudy environments) might not outperform certain competitors with different technologies.
Solar Commission’s Expert Review:
Our experts would rate Panasonic Solar Panels at 90/100. Here’s the reasoning for this rating:
Strengths (rated highly):
High Efficiency (around 22%) - Panasonic’s HIT (Heterojunction with Intrinsic Thin-layer) technology provides some of the highest efficiencies in the market, particularly in high-temperature environments and partial shading conditions. This makes their panels very effective for areas with limited roof space or challenging weather conditions.
Excellent Durability and Long Lifespan - Panasonic panels are known for their reliability and long-term performance. The 25-year warranty (for both product and performance) assures customers that their investment is well protected. They also have a low degradation rate, meaning their output doesn’t drop as much over time compared to many competitors.
Low Temperature Coefficient - This is especially important for regions that experience high temperatures. Panasonic's panels lose less efficiency in hot climates, making them a top choice for sunny, warm areas where other panels might underperform.
Proven Track Record - With decades of experience in the solar market, Panasonic has established itself as a reliable and trustworthy brand. Their global presence and strong customer service network offer reassurance to buyers.
Sustainability - Panasonic has demonstrated a commitment to sustainability, producing high-performance solar panels with environmentally responsible manufacturing processes.
Weaknesses (lowering the rating):
Premium Price - Panasonic solar panels are often more expensive compared to other brands, especially when considering the initial investment required for their high-efficiency models. While they offer excellent long-term performance, the higher upfront cost may not be justified for everyone, particularly if your budget is a concern.
Limited Model Variety - While the Evervolt series is excellent, Panasonic doesn’t offer as many models with a range of price points or features as some competitors. For example, brands like LG or REC offer more diverse options that cater to a broader array of needs and budgets.
Availability - Depending on your location, Panasonic panels may not be as widely available as some other brands. Availability could also impact the ease of installation and the availability of replacement parts or service.
Final Rating:
90/100 reflects Panasonic’s strong performance in the solar market, particularly in terms of efficiency, durability, and sustainability. While their products are high-quality and have a long lifespan, the premium pricing and limited variety of models mean that they're not always the most cost-effective choice, especially for those with a smaller budget or specific installation needs. That said, if you're willing to invest in a top-tier product for maximum performance and longevity, Panasonic solar panels are an excellent option.
Summary:
Panasonic has a solid reputation in the solar industry with a focus on high-efficiency panels and long-term durability. They offer excellent performance for residential and commercial solar energy systems, especially in areas with high temperatures. However, their premium price may not be for everyone, and depending on your location, availability and service might be factors to consider. If you're looking for top-tier efficiency, a long-lasting product, and don't mind the upfront cost, Panasonic is a strong contender.
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