Add-on Solar Battery Storage

Gain comfort in knowing your home will be powered with resilient, renewable solar energy, even when the grid is down, by adding our +SunSafe® battery storage technology to your existing home solar system.

Maximize Your Solar System with Little to No Upfront Costs.

  • Extend Your Solar Power

    Reduce your grid electricity consumption, and power your home around-the-clock with renewable solar energy, even when the sun is down.

  • Resilient Backup Power

    Gain confidence from having backup power in an emergency. During a grid outage, your most needed appliances and lights can stay on.1

  • Economic Benefit

    Based on your utility and energy needs, your battery will be configured to make sure you automatically get the maximum economic benefit from your solar system.

  • Battery Protection

    Your battery comes with a 10-year limited manufacturer warranty.2 For parts covered under the warranty, we will coordinate all maintenance and repairs - no more hassle.

How Solar + Storage Works
  1. During the day, solar panels turn sun rays into energy
  2. The energy travels through your inverter to make the energy usable for your home
  3. Your solar energy charges your battery
  4. Your solar energy powers the energy loads in your home
  5. Your battery can provide back-up power to the critical energy loads in your home
  6. Your utility meter tracks your grid electricity use and net metering

Your nighttime power will depend on your battery configuration. You’ll likely be using a combination of battery energy and grid electricity.

Reliable, Renewable Energy Round-the-Clock 

When charged at 100%, the Tesla Powerwall 2 battery can power your most needed lights and appliances for approximately 13.5 hours1, depending on your usage. Know you’ll have access to backup power when the grid goes down.

Our intelligent battery control technology automatically manages the flow of energy between your solar system, battery, home, and the electric grid.

Gain confidence knowing that your home can be powered during natural disasters and grid instability. Day or night, your battery can help you live life uninterrupted.4

Battery Duration


1. The amount of power available during a power outage is limited, depending on the loads connected and the customer usage during a power outage.
2. The system warranty is based on the manufacturers’ warranty. Refer to the Warranty Agreement for complete warranty terms and limitations.
3. The amount of power available from the battery during a power outage is limited, depending on the loads connected and customer usage. Solar systems and/or batteries may require repairs after weather events and such repairs may be delayed due to forces outside of our control.
4. Some solar systems and/or its components (including batteries) could require repairs to be completed after certain events. Please refer to your agreement for conditions and limitations.



Thank you for your interest in Sunnova. One of our representatives will be in touch with you shortly

Gain confidence in knowing that you can have power during a blackout.

There’s no obligation, so you have nothing to lose.

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