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Battery Backup Solar Power Systems

Battery Backup Solar Power Systems

Do you want power when the grid goes down? Get more out of your solar power system with solar plus storage.

You can never be too prepared. With a battery backup for your grid-tied solar system, you'll always have power when the grid goes down or an emergency strikes. Browse our selection of battery backup systems below to explore more.

When you're reliant on your solar power system, it can be a scary thought to think about what would happen if the grid went down or an emergency strikes. But with battery backup for a grid-tied solar system, you'll stay online no matter what. You just need to capture energy from the sun and store it in a deep-cycle solar battery, then supply that power to either your home or to the grid using a hybrid inverter. With our selection of battery backup systems below, all these components have been pre-selected for you by our solar experts, so you don't need to worry about picking out individual items and checking their compatibility!

We offer solar power systems that will keep your home powered up, even if the grid goes down. Grid-tied with battery backup? Yes please!

Do you have questions about solar systems with battery backup, or are you interested in retrofitting your existing grid-tied solar power system? Call an altE solar expert today at 877-878-4060 and make sure you are prepared for grid uncertainty.

Looking to retrofit an existing solar system with batteries or install a battery backup system without solar? Check out our Energy Storage Systems.Looking to be off grid and not sell back to the utility? Look no further than our off grid home solar power systems, off grid cabin solar power systems, and tiny house off grid solar power systems.

Why Install a Battery Backup Solar Power System?

  • Maximum Reliability - Enjoy maximum reliability when you install a solar system with battery backup. Your home can be disconnected from the grid and can be run on its own microgrid during outages.
  • Money Saver - By powering your home with solar, you are saving money on utility bills every month. Adding a battery to your system will allow you to take advantage of grid-tie incentives and make the switch to clean energy easier and more affordable while still having power when the grid goes down.
  • Reassurance - Reassure yourself and your family that no matter what happens with the grid, you’re protected against outages or natural disasters with a backup battery.
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Product Name  Price
  Outback Radian GS8048A 8kW AC Coupling Kit     Outback Radian GS8048A 8kW AC Coupling Kit   Outback GS8048A-AC OUTGS8048A-AC Outback Radian GS8048A 8kW AC Coupling Kit $6,190.72
  Grid-Tied 7.2kW Residential Home Solar System with Battery Backup     Grid-Tied 7.2kW Residential Home Solar System with Battery Backup   AltE Grid-Tied w Backup 7.2kW KITGRIDBACK-7 Grid-Tied 7.2kW Residential Home Solar System with Battery Backup $23,849.57
  Grid-Tied 6.5kW Residential Home Solar System with Battery Backup     Grid-Tied 6.5kW Residential Home Solar System with Battery Backup   AltE Grid-Tied w Backup 6.5kW KITGRIDBACK-6 Grid-Tied 6.5kW Residential Home Solar System with Battery Backup $21,474.13
  Grid-Tied 3.9kW Residential Home Solar System with Battery Backup     Grid-Tied 3.9kW Residential Home Solar System with Battery Backup   AltE Grid-Tied w Backup 3.9kW KITGRIDBACK-4 Grid-Tied 3.9kW Residential Home Solar System with Battery Backup $13,701.98
  Grid-Tied 10kW Residential Home Solar System with Battery Backup     Grid-Tied 10kW Residential Home Solar System with Battery Backup   AltE Grid-Tied w Backup10kW KITGRIDBACK-9 Grid-Tied 10kW Residential Home Solar System with Battery Backup $26,011.86


Solar System with Battery Backup

If you’re going solar with a grid-tied solar power kit, it's worth considering battery backup as well. Grid-tied systems are often the easiest and most cost-efficient type of solar power system to install. However, their main drawback is that when the grid goes down, UL requirements mean grid-tie systems shut down immediately as well. This way your system isn't sending electricity to the grid, potentially endangering lineworkers during an outage. A hybrid system can take your home off the power grid during an outage. In “island mode,” your home can remain online as an isolated microgrid until utility power is restored. As technology improves, backup power systems have gotten easier and easier to design, install, and maintain.

The video below will take you through some of the decisions you’ll make as you begin your solar battery backup project.


Video: How Do You Add Batteries to a Grid-Tied Solar System?

Our video about adding batteries to an existing grid-tied solar system will answer all of your questions about storing your own energy for when the grid is down. Watch to learn more about AC coupled and DC coupled systems!


5 Reasons Why You Need a Backup Solar Battery

When it comes to powering your home with clean, renewable energy, investing in a backup solar battery is essential. Not only do these systems provide a reliable source of power when the grid goes down, but they also offer many other advantages. We’ll discuss the top five reasons why you should invest in a backup solar battery for your home. From reducing your energy costs to providing a cleaner form of energy, you’ll soon see why backup solar batteries are a great investment for your home.

1) To keep the power on during a power outage

Having a battery backup for your solar energy system can be a lifesaver during a power outage. With battery backup, you can keep your home powered up with solar energy when the main power source fails. The batteries are designed to store energy generated from the sun and use it to power your home when the electric grid is not available. This means that even when your lights go out, you'll still have light and power for your appliances and other needs. With battery backup for solar energy, you can keep the lights on in an emergency and keep your family safe.

2) To keep your devices charged

Having a battery backup for solar panels is a great way to ensure that your devices stay charged during a power outage. A battery backup system stores excess energy from the solar panel during peak hours and releases it when the demand is high, such as during an outage. This means that you won't have to worry about running out of power and your devices like mobile phones, tables, laptops will all stay charged when you need them the most. With a battery backup system, you can always be sure that your devices will be powered up and ready to go when you need them.

3) To save money on your electric bill

Using a battery backup for your solar power system is an excellent way to save money on your electric bill. A battery backup for solar energy stores energy generated during the day so you can use it when the sun isn't shining. This means that you don't need to purchase as much energy from the grid and can instead rely on your own solar energy. Additionally, if you have a battery backed solar system, you will be able to use the stored energy during peak demand hours or when electricity rates are high. In other words, having a battery backup for your solar panels can help you take advantage of time-of-use electricity rates to maximize savings on your electric bill.

You also may qualify for state incentives and the federal tax credit. Check out the Database of State Incentives for Renewables and Efficiency and the IRS FAQ for more details on state and federal incentive programs.

4) To be prepared for an emergency

Having a battery backup for your solar energy system is essential for emergency preparedness. Battery backup for solar systems ensures that when there is a power outage, your home or business will still have access to power. This can be particularly helpful if you are in an area that experiences natural disasters like snow and ice storms, hurricanes, floods, and earthquakes.

With a battery backup for your solar system, you can rest assured that you will have access to electricity when the power goes out. Solar and battery backups also provide peace of mind in case of any unexpected situations that could leave you without power. This could include an interruption in service due to an accident or severe weather. A battery backed solar system can provide you with the power you need to continue functioning during these times.

A battery backup for solar panels also allows you to stay connected during emergencies. Without it, you could be left without the ability to communicate with loved ones or access important resources online. Having a battery backup system in place allows you to keep your devices charged and stay connected when the power is out.

Overall, having a battery backup for solar energy is an essential part of emergency preparedness. It ensures that you will have access to power and be able to stay connected during a power outage. Investing in a battery backed solar system is a wise choice for anyone looking for peace of mind and safety during an emergency situation.

5) To protect the environment

As more and more of us become aware of the impact our lifestyle has on the environment, we're looking for ways to reduce our carbon footprint. One way to do this is by investing in a battery backup for solar energy. By having a battery backup for your solar system, you'll be able to store the extra energy produced by your solar panels during the day, and use it at night when your solar panels may not be producing as much electricity. Not only does this mean that you won't have to rely solely on the grid for your power needs, but it also means that you'll be reducing the amount of energy that needs to be produced by traditional power sources.

In addition, using a battery backed solar system will help to reduce your energy bill. During sunny days, your battery backup for solar will be charged with the energy produced by your solar panels, allowing you to rely less on grid power, which often comes with higher costs. This means that you'll be able to save money while helping to reduce the strain on traditional power sources.

Investing in a battery backup for solar is an excellent way to make sure that you stay prepared in the event of a power outage while also doing your part to protect the environment. By having a reliable source of stored solar energy, you'll be able to make sure that your home or business has access to power even during extended outages. Not only will this provide peace of mind, but it will also help to reduce your carbon footprint and contribute to a greener future.

Design Considerations of Battery Backup Solar Power Systems


altE Battery Backup Solar Power Systems includes the basic components for a grid-tied solar power kit with battery backup. It starts with a solar array of photovoltaic (PV) panels, an inverter to convert the DC current from the panels into AC current your home can use, a charge controller to regulate the flow of electricity, and several batteries wired together in parallel or series to store energy. Finally, a transfer switch is included that will sense when utility power goes down and switch over to “island mode” automatically.

Once installed and configured properly, this Solar System with Battery Backup will provide clean energy without interruption even when the grid fails. This type of solar system involves installing a solar power array on your roof and hooking it up to the electrical grid. The electricity generated by the solar array is then sent back to the utility company and credited on your monthly bill. A battery backup system can be added as part of the solar installation in order to provide an emergency source of power when there is an outage or grid disruption. The batteries store energy generated from the solar array during the day, which can then be used at night or during periods when the grid goes down. The battery system is also integrated with an inverter, which converts DC current into AC current for use in standard outlets. With this type of setup, you will have reliable access to power even if the main utility grid is disrupted.

A solar system with battery backup is a type of grid-tied solar power system that provides an additional level of energy security in case the grid goes down. We have a variety of solar kits to meet your backup power needs, so you are sure to find a grid-tied system with battery backup for you. What's in a solar power system kit with battery backup? See our high-level list below, or browse the products above to learn more! A solar system with battery backup has several components, including:

  1. Solar panels: Solar panels are the foundation of any solar system and provide a source of renewable energy to the home or business.
  2. Solar panel racking
  3. Charge controller: A charge controller manages and optimizes charging between the solar panels and battery bank to prevent overcharging or discharging too quickly. In some systems, the charge controller is integrated into a hybrid inverter.
  4. Deep cycle batteries: A battery bank stores electricity generated by the solar panels for use during a power outage. It typically includes several deep-cycle batteries, like lead acid or lithium ion batteries, connected together in parallel or series configurations to store sufficient amounts of energy for extended periods of time.
  5. Hybrid inverter: A grid-tie inverter takes DC power from the solar panel and converts it into AC power for use on the electrical grid.
  6. Backup Generator: During extended power outages, a backup generator may be used to provide an additional source of power if needed. These kits do not include a backup generator, but the systems are capable of accommodating one if desired.

Things to Consider When Buying a Solar Battery Backup System


  1. Analyze and evaluate your power needs: The first step to building a battery backup solar system is to analyze and assess the energy requirements of your home or business. Using a grid-tied solar calculator will give you an estimate of how much energy your system will need to provide during a power outage.
  2. Consider components needed: Battery backup solar systems generally require a combination of PV panels, inverter/chargers, deep cycle batteries, and wiring. When selecting the appropriate components, consider efficiency ratings and quality as well as cost-effectiveness.
  3. Invest in the right size: It’s important that you purchase the correct size battery backup system for your needs – don’t go too big or too small. Taking into account the load demand during outages, pick a size that’s capable of meeting these requirements.
  4. Choose durable products: For battery backup systems, make sure to choose products with excellent durability and longevity ratings – this includes batteries as well as any associated electronics such as inverters and controllers. Quality is key when choosing components for off-grid systems – after all, it needs to work even during power outages!
  5. Design for safety: Make sure to take necessary safety measures when installing any kind of solar energy system with battery storage capability, including following all codes and standards related to electrical safety as well as correctly installing surge protectors where appropriate.

Retrofit a Battery Backup Solar System


All of our battery backup solar power systems include solar panels but we offer a wide range of retrofit battery backup systems to easily add power storage capabilities to an existing grid-tied system. These systems are designed with flexibility and convenience in mind, allowing you to configure your system exactly how you want it. Once installed, the system will be able to provide 24 hours of backup power, or more, when grid electricity is unavailable, depending on your consumption and battery bank size. In addition to the hardware, we offer free technical support from our team of experts to answer any questions or concerns about your setup throughout the installation process. So don't wait – get started on adding reliable battery backup power today!


Video: Retrofit a Solar System with Battery Backup

Watch our video on how to retrofit an existing grid-tied solar system with battery backup using AC Coupling. We’ll cover the basics of how retrofitting a grid-tied solar system works, and the additional components you will need to make it happen. Check it out to learn more!

The retrofit battery backup solar system is designed to add a battery backup component to an existing grid-tied solar power system. First, you must use our calculator to determine the list of critical loads that you wish to have powered during an outage. Once this list has been determined, they will need to select the appropriate size AC-coupled system and battery bank in order to meet your needs.

Once the components have been selected, they will need to install them according to manufacturer's instructions. The components should be installed safely, and all wiring should be done properly and securely in accordance with electrical codes and regulations. It is also important to ensure that the components are compatible with each other and will work together as intended.

Once installation is complete, it is important to test out their system thoroughly in order to ensure it is functioning properly and safely. Once testing has been completed satisfactorily, you can enjoy peace of mind knowing that their home is now protected from any potential power outages!


Off-Grid Emergency Preparedness


We offer a number of kits that are perfect for emergency readiness. We've assembled a range of options to meet your emergency needs. Friendly reminder from your friends at altE: The key to utilizing these kits is to have them before an emergency. So don't delay—order your kit today and make sure you have emergency backup power in an emergency.

AltE has a great selection of off-grid emergency preparedness kits. With options ranging from small and portable device charging kits to full DIY battery banks that can power larger household appliances, you can make sure your family is ready for any emergency situation. Our emergency prep kits include the necessary components and instructions to set up an off-grid solar power system quickly and easily. We even have pre-configured packages so all you have to do is plug it in and get going! You can count on us for reliable products and service - order your kit today!

We know you don't want to be caught unprepared in the event of an emergency. That's why altE has put together a wide range of off-grid emergency preparedness kits to meet all of your needs. No matter what your specific requirements may be, our team can help you choose the right kit for you! We make sure each kit is tailored to your particular needs, so you have peace of mind knowing you have everything you need in case of an emergency.

For those looking for something more than just basic supplies, we offer full DIY off-grid solutions as well. With these solutions, you can set up a self-sustaining power system that allows you to go off the grid entirely in the event of an emergency or other disruption. With one of these systems installed at your home, you can ensure that no matter what happens—you'll always have the power needed to keep your family safe and comfortable.

For emergency preparedness, we recommend stocking up on off-grid solutions that can be used to power lights, appliances, and other devices. We have a range of emergency kits that will get you set up quickly and efficiently. Our off-grid emergency prep kits come with solar panels, inverters, batteries, and wiring - all the essentials for powering up your home or cabin during an outage. The solar panels capture energy from the sun to charge the battery bank which can then be used to run appliances and lights for a limited time in case of an emergency. You can also charge devices like phones, tablets, and radios so you’re never out of touch during an emergency situation.

Additionally, our DIY battery banks are great for those who want to customize their off-grid emergency prep setup and make sure they’re always prepared no matter what happens. Our full kits include a variety of components that allow you to design and assemble a powerful energy storage system to ensure reliable backup power in any type of emergency.

So don't wait - order your off-grid emergency prep kit today! AltE has all the components you need to get started on building your own customized energy storage solution. Take action today and order one of our off-grid emergency preparedness kits before it's too late!


Solar Batteries


Solar batteries are an important part of any solar energy system, allowing the energy from the sun to be stored and used later. Charging solar batteries is not as complicated as it may seem, but there are certain things to consider before doing so. We will provide an overview of how to charge a solar battery, types of solar batteries, how long solar batteries typically last, whether you can charge solar batteries without a charge controller, and how much they cost.

How to charge a battery from solar panel

If you want to access renewable energy after the sun goes down or during a power outage, you will need to invest in deep cycle batteries. Deep cycle batteries are specifically designed to provide reliable and efficient power in solar and other renewable energy systems, while car batteries are not.

Deep cycle batteries differ from car batteries in several ways. First, they are designed to discharge and recharge multiple times over long periods of time without being damaged. Car batteries, on the other hand, are meant to start a vehicle and then quickly recharge. When it comes to selecting a deep cycle battery for your renewable energy system, lithium batteries are a great choice. They offer several advantages over AGM (absorbed glass mat) batteries. Lithium batteries last longer, require less maintenance, and are better suited for high-temperature climates.

It is also important to make sure that the battery bank voltage matches the solar array voltage in your system, unless you plan to use an MPPT charge controller. An MPPT charge controller will allow you to use a higher voltage battery bank than your solar array, resulting in more efficiency and greater power production.

Overall, deep cycle batteries are an essential component of any renewable energy system. Selecting the right battery for your needs is key to getting the most out of your system. With proper selection and maintenance, you can ensure that your system will continue to provide reliable power for years to come.

How long do solar batteries last?

Solar batteries are an important part of any solar energy system. Without them, energy generated by the solar panels would be wasted. However, understanding how long they will last is key to making sure you get the most out of your investment.

Lithium-ion batteries are the most popular type of solar battery, and they are known for their longevity. When properly cared for, they can last up to twenty years. This makes them a great choice for larger solar energy systems. Flooded lead acid batteries are also popular, but they tend to have a shorter lifespan. With proper care, they can last between five to ten years. Sealed lead acid batteries tend to have the shortest lifespan, typically lasting less than five years.

It's important to note that the lifespan of a solar battery is not just determined by its type. Factors like temperature, use cycles, and the quality of the battery itself all play a role in determining how long a solar battery will last. That's why it's important to buy good quality batteries and keep them at optimal temperatures for maximum lifespan.

In addition, it's important to make sure you have enough solar batteries for your energy needs. If you don't have enough batteries, you won't be able to store all the energy produced by your solar panels and will likely end up wasting energy.

Finally, having a good battery maintenance plan in place is essential for keeping your solar batteries in top condition. Regularly checking and testing your batteries can help you detect any potential issues before they become serious problems.

By understanding how long solar batteries last, you can make sure you get the most out of your investment in a solar energy system. With proper care and maintenance, you can ensure your solar batteries last as long as possible and give you years of reliable energy storage.

Can you charge solar batteries without a charge controller?

When it comes to charging solar batteries, there are many different types of solar charge controllers. The three primary types are 1- or 2-stage solar charge controllers, 3-stage and/or PWM solar charge controllers, and maximum power point tracking (MPPT) controllers. Charge controllers for electric vehicles and golf carts may also be used for charging solar batteries.

The most commonly used charge controllers range from 4 to 60 amps of charging current, but newer MPPT controllers can achieve upwards of 80 amps. This makes them very efficient for large-scale solar arrays. Without a solar charge controller, the battery may overcharge, reducing its lifespan and performance. For this reason, it is highly recommended that you use a solar charge controller to safely and efficiently charge your solar batteries.

How much do solar batteries cost?

Solar batteries are very affordable, with costs ranging from around $1,000 to over $5,000 depending on the capacity and the technology. It's important to not just look at the cost per unit, but also the total cost of setting up a battery bank. This means taking into account any installation fees, additional hardware, and other costs.

When looking at the cost of a solar battery, it's also important to consider the cost per cycle. This is the cost of one full cycle of use. Depending on the technology and size of the battery, a cycle may last anywhere from hundreds to thousands of cycles. If you're planning on using your solar battery for a long time, this cost-per-cycle should factor heavily into your decision-making.

Finally, you should also factor in the full life cycle cost of the solar battery. This includes factors such as manufacturing, delivery, installation, maintenance, and disposal. Taking all of these costs into account can give you a better understanding of the true value of a solar battery.

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