2021 review: the Panasonic EverVolt battery and solar modules

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Panasonic EverVolt Solar Panel Modules on a home
Panasonic has created solar panel modules that are designed to work with their EverVolt battery system. Image source: Panasonic

Panasonic North America recently unveiled new EverVolt solar modules that will work seamlessly with their EverVolt solar battery. If you are interested in pairing a solar system with a solar battery, this Panasonic combination is a great option.

We’ll take you through the two EverVolt solar module series, how the EverVolt battery works, and why the combined Panasonic EverVolt battery and solar modules would be a great energy solution for homeowners.

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    What EverVolt solar modules are available?

    Currently, there are two solar module series: the Solar Module Series and the Solar Module Black Series.

    Each series has two solar panel modules available for purchase, making a total of four new panels. The panels range from 350W-370W which is on the high end of the industry standard of wattage, so any option you choose will provide your home with plenty of solar power.

    EverVolt Solar Module Series 370W / 360W

    The EverVolt Solar Module Series

    The EverVolt Solar Module Series. Image source: Panasonic

    The EverVolt module series features two types of panels for purchase: the 360W or the 370W. The efficiency of the 360W panel is 20.6% and the 370W panel offers a 21.1% efficiency, both excellent efficiency ratings.

    Each panel's temperature coefficient is .26% which is on the low end, so you can expect Panasonic panels to produce energy relatively well on hot days. Additionally, the EverVolt module is manufactured with half-cut cell heterojunction technology which increases the panel's power output.

    EverVolt Solar Module Black Series 360W / 350W

    The EverVolt Solar Module Black Series

    The EverVolt Solar Module Black Series. Image source: Panasonic

    The advantage of the EverVolt Solar Module Black Series versus the traditional EverVolt series is strictly based on aesthetic appeal. The sleek, all-black panels are a more visually appealing version of the new Panasonic solar panels.

    But, the black modules have a slightly lower efficiency than the traditional module. For example, the 350W panel has an efficiency rating of 20% while the 360W panel has a 20.6% efficiency rating. Much like the traditional module series, the black series also has a .26% temperature coefficient.

    Any of the four panels are a great choice based on efficiency, temperature coefficient, and the fact that both panels come with a 25-year product, labor, and performance warranty. If you are more concerned with the look and appeal of your panels, the Black series would make more sense for you. The traditional module series is best if you are interested in higher wattage panels, because you will need fewer panels to provide power for your home.

    But the real advantage of choosing one of the EverVolt panels is the fact that they are made to work with the Panasonic EverVolt battery which can provide you with energy independence.

    Contact installers for EverVolt panel pricing

    How does the Panasonic EverVolt battery work?

    The Panasonic battery storage system is a lithium-ion battery, a rechargeable battery similar to what is in cell phones. This battery stores any surplus energy that your panels produce but your home does not use.

    This power can then be used when the sun isn't shining, such as at night or when the power goes out and there is no energy being provided from the grid. There are two battery storage options to choose from, the AC-Coupled battery and the DC-coupled battery.

    The Panasonic AC-Coupled EverVolt battery

    The Panasonic AC-Coupled EverVolt battery. Image source: Panasonic

    There are two AC-Coupled battery systems, the evac-105-4, and the evac-105-6, meaning there are either four or six internal lithium-ion batteries. The models have the ability to store between 11kWh to 17.1kWh of energy.

    Based on the average monthly energy usage of 877 kWh a month per home, or about 29 kWh a day, the EverVolt battery will be able to provide energy until your panels can be powered by the sun during a power outage or for nighttime use.

    The AC-Coupled storage solution can work with new or existing solar systems, so if you already have solar panels, this is the choice for you. Additionally, the AC-Coupled battery is compatible with most inverters and if there is ever a battery malfunction, it will not affect your solar panels.

    The Panasonic DC-Coupled EverVolt battery

    The Panasonic DC-Coupled EverVolt battery. Image source: Panasonic

    The DC-coupled EverVolt module can also incorporate four to six lithium-ion batteries and store from 11kWh to 102kWh - more than enough to keep most homes powered up for 24 hours.

    Because homes run on AC electricity but solar panels generate DC electricity, storing DC electricity in a DC battery is more efficient - there is a slight decrease in available energy when the power is converted to AC. DC battery systems require fewer parts, cost less, and can provide electricity to unique appliances, like an electric car. Installing a DC-coupled battery makes sense if you are installing it in conjunction with a new solar system and you want more efficient storage.

    You can even install an EverVolt battery if your home does not have solar panels by charging it with grid energy for later use as a source of backup power. If you do this, you can also utilize this battery power for use during peak energy cost hours instead of paying for extra energy from the grid. EverVolt batteries also have the capability for an external gas powered generator to be plugged in to draw power from. This gives you the ability to power your entire home for days if the grid is down. 

    Both EverVolt batteries come with a 10-year warranty with a guaranteed 60% energy capacity after 10 years, meaning your battery can store 60% of the amount of energy it could on day one. Solar batteries tend to last for fewer years than a solar system because the batteries deplete more quickly. But, if you use your battery only during emergencies rather than daily, it will last longer.

    Much like how the Tesla Powerwall best pairs with Tesla panels, the Panasonic EverVolt solar modules are the best choice of solar panel if you install an EverVolt battery. But, unlike Tesla, Panasonic has a better reputation for customer service and provides a better warranty. While they might be more expensive, you can feel more at ease knowing your panels will be covered under warranty and you will have access to trustworthy customer service when you choose Panasonic.

    How much does the EverVolt cost?

    The cost for an EverVolt battery will be in addition to the cost of solar panels if you decide to install solar as well. The exact cost of your Panasonic EverVolt battery and solar panels will vary depending on installation and set up in your particular home. You can expect to pay $15,000 - $20,000 for the EverVolt battery, but it will depend on your solar system size and the complexity of connecting it to your grid.

    Although that cost is potentially prohibitive for many people, there are various state, local, utility, and federal incentives that can apply to battery storage. Investing in energy independence will be worthwhile when the neighborhood's power goes out and your home is the only one with the lights on.

    Can you go off-grid with the Panasonic EverVolt?

    While you can generate, store, and use your own electricity day after day, going completely off-grid is still not the most feasible option. The EverVolt system is built to only store hours' worth of electricity, not days. So if you were completely off-grid during grid outages coupled with no source of sun for days at a time, you would be without electricity.

    You could hypothetically install a few EverVolt batteries for extra energy storage but that would be expensive. It's best to rely on your solar and energy storage plus the grid for extra support.

    Where can I buy an EverVolt battery?

    Panasonic works with pre-approved installers who will be covered under warranty. You can research a few solar installers to ensure you get the best price for Panasonic panels and the EverVolt home battery. Battery solutions have the chance to greatly improve the renewable energy industry and you can be a part of this revolution by installing an EverVolt battery in your home.

    We usually recommend choosing Panasonic panels because they are a high quality, reputable brand with high-efficiency panels, low-temperature coefficients, and offer a great warranty. If you want energy storage, the Panasonic EverVolt battery is a natural choice and one of the best options out there for a backup energy storage system.

    Find reputable installers for your EverVolt battery

    Key takeaways

    • Panasonic has released new EverVolt solar panel modules to work with their EverVolt battery storage system.
    • There are 4 new panels available for purchase ranging from 350W-370W per panel.
    • The EverVolt battery systems can be installed with existing solar panels, without solar panels, or the best option - with the new EverVolt solar panel modules, and cost between $15,000 - $20,000.
     - Author of Solar Reviews

    Ana Almerini

    Web Content Specialist

    Ana is a content specialist at SolarReviews. She uses her experience in marketing and knowledge from her master's in climate communications to research and review the solar industry.

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