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Battery Backup Solar Power Systems

Battery Backup Solar Power Systems

Grid-tied solar with battery backup, or Solar plus Storage, is a hybrid system that stays online whether the grid is up or down. All you need to do is 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. This can be especially useful if you are in an area with an unreliable grid due to peak demand or severe weather, or if you simply want to start making and using your own electricity. Browse our selection of battery backup system options below to explore more.

Our battery backup solar power kits have all the major system components needed to generate and store solar power, including solar panels, mounting hardware, batteries, solar charge controller, hybrid inverter, and other balance of system (BOS) components. We have the solar power system kit for you, to meet your energy storage needs!

Do you have questions about solar power 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.

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Product Name Price 
  Grid-Tied 9.9kW Residential Home Solar System with Battery Backup     Grid-Tied 9.9kW Residential Home Solar System with Battery Backup   Grid-Tied w Backup 9.9kW KITGRIDBACK-9 Grid-Tied 9.9kW Residential Home Solar System with Battery Backup $24,718.20
  Grid-Tied 7.9kW Residential Home Solar System with Battery Backup     Grid-Tied 7.9kW Residential Home Solar System with Battery Backup   Grid-Tied w Backup 7.9kW KITGRIDBACK-7 Grid-Tied 7.9kW Residential Home Solar System with Battery Backup $20,812.69
  SimpliPhi AccESS 15.2kWh Energy Storage System Schneider - DC Coupled     SimpliPhi AccESS 15.2kWh Energy Storage System Schneider - DC Coupled   SimpliPhi Power 15.2 kWh AccESS - DC SIMACC4PHI3.5DC SimpliPhi AccESS 15.2kWh Energy Storage System Schneider - DC Coupled $19,550.00
  Grid-Tied 6.9kW Residential Home Solar System with Battery Backup     Grid-Tied 6.9kW Residential Home Solar System with Battery Backup   Grid-Tied w Backup 6.9kW KITGRIDBACK-6 Grid-Tied 6.9kW Residential Home Solar System with Battery Backup $19,097.68
  SimpliPhi AccESS 15.2kWh Energy Storage System AC Coupled     SimpliPhi AccESS 15.2kWh Energy Storage System AC Coupled   SimpliPhi Power 15.2kWh AccESS - AC SIMACC4PHI3.5AC SimpliPhi AccESS 15.2kWh Energy Storage System AC Coupled $17,795.00
  SimpliPhi ExprESS 7.6kWh Mobile Power Unit     SimpliPhi ExprESS 7.6kWh Mobile Power Unit   SimpliPhi Power ExprESS 2 x 3.8 SIMEXPRESS48V SimpliPhi ExprESS 7.6kWh Mobile Power Unit $12,195.00
  Grid-Tied 3.9kW Residential Home Solar System with Battery Backup     Grid-Tied 3.9kW Residential Home Solar System with Battery Backup   Grid-Tied w Backup 3.9kW KITGRIDBACK-4 Grid-Tied 3.9kW Residential Home Solar System with Battery Backup $11,690.18
  Enphase Encharge 10.5kWh LFP AC Battery     Enphase Encharge 10.5kWh LFP AC Battery   Enphase Energy EN-ENCHARGE-10-1P-NA ENPENCHARGE10 Enphase Encharge 10.5kWh LFP AC Battery $7,795.00
  Morningstar DC-Coupled Retrofit Battery Backup System     Morningstar DC-Coupled Retrofit Battery Backup System   Morningstar DC Coupled 1 KITDCCOUPMSTAR1 Morningstar DC-Coupled Retrofit Battery Backup System $5,609.14
  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 $4,995.00
  Enphase Encharge 3.36kWh LFP AC Battery     Enphase Encharge 3.36kWh LFP AC Battery   Enphase Energy EN-ENCHARGE-3-1P-NA ENPENCHARGE3 Enphase Encharge 3.36kWh LFP AC Battery $2,595.00
  KiloVault Emergency RESQ Kit, Portable Ground Mount - 2 Panels     KiloVault Emergency RESQ Kit, Portable Ground Mount - 2 Panels   KiloVault KLV RES-Q KIT 1500 KLVRESQKIT1500T KiloVault Emergency RESQ Kit, Portable Ground Mount - 2 Panels $2,195.00
  Off Grid Emergency Prep Kit 2     Off Grid Emergency Prep Kit 2   AltE KITEMERGPREP2 Off Grid Emergency Prep Kit 2 $2,110.22
  KiloVault RES-Q 1500 Watt Portable Backup Power Unit     KiloVault RES-Q 1500 Watt Portable Backup Power Unit   KiloVault KLV Portable Power Unit KLVRESQ1500 KiloVault RES-Q 1500 Watt Portable Backup Power Unit $1,579.00
  Xantrex XPower Powerpack 1500 - Portable Backup Powerpack     Xantrex XPower Powerpack 1500 - Portable Backup Powerpack   Xantrex Powerpack 1500 XANBU-1500 Xantrex XPower Powerpack 1500 - Portable Backup Powerpack 4.0 3 $595.00
  Midnite Solar 240VAC Backup Kit     Midnite Solar 240VAC Backup Kit   Midnite Solar, Inc. MNBUK250-240 MIDMNBUK250-240 Midnite Solar 240VAC Backup Kit $525.00


More Info on Solar + Storage

Solar Power 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 DIY 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!

Design Considerations of Battery Backup Solar Power Systems

Generally battery backup doesn't mean powering your entire house. Rather you will identify a few "critical loads" (refrigerator, well pump, select lights, outlet for charging devices, etc.) you want to run in a power outage. Battery backup allows you to have all of the benefits of a grid-tied solar system, and to have power during a grid outage.

The first step is determine your power needs. Check out our grid-tied solar calculator to get started.

We have a variety of DIY 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!

  • Solar panels
  • Solar panel racking
  • Charge controller
  • Deep cycle batteries
  • Inverter / charger
  • Balance of System components
  • Required schematics

Retrofit Battery Backup Solar System

Are you looking to add battery backup to an existing grid-tied solar power system? We have you covered. Similar to installing a new grid-tied solar kit with battery backup, the first step in getting started is to determine your list of critical loads that you'll want to power during an outage. Check out our calculator to get started on your critical load list.

The new major components you will need in order to add battery backup to an existing grid-tied system—also known as AC Coupling—are a pre-wired AC-coupled system and a battery bank. We also offer DC-coupled systems depending on your needs.

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!

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.

You will find easy-to-assemble emergency prep kits, lighting and device charging kits, and full DIY battery banks that can power larger household appliances. Check out our emergency kits above, and get prepared today!

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