Essential backup
Keep refrigeration, lights, internet, outlets, and other essentials running.
- Critical-load panel
- Runtime scenarios
- Solar recharge options
Battery backup
Keep the power on when the grid goes down.
Choose what you want backed up. We’ll size the battery system for the way your home uses power.
How backup works
Solar needs a battery to work during most outages.
Grid-tied solar shuts down for safety when the grid fails. A compatible battery can keep selected circuits or more of the home running.
We size the system around the loads you need, the runtime you want, and whether solar can recharge the battery.
Read the outage guide →Current battery models · reviewed July 2026
Compare your battery options.
Capacity, power, controls, solar integration, expansion, and warranties vary by model.
Powerwall 3 + Expansion
Model: Powerwall 3 · Powerwall 3 ExpansionTesla's current integrated battery platform, with a lower-cost expansion option for added runtime.
Explore Powerwall 3 + Expansion →
aPower S
Model: aPower S · APRS-10K15V1-USFranklinWH's newest all-in-one battery with direct solar connection and an integrated hybrid inverter.
Explore aPower S →
aPower 2
Model: aPower 2High-capacity, high-output storage built around flexible whole-home energy management.
Explore aPower 2 →
IQ Battery 10C
Model: IQBATTERY-10C-1P-NAEnphase's current 10 kWh battery, built for higher power and the fourth-generation Energy System.
Explore IQ Battery 10C →
OCEAN Pro
Model: Battery EF-BP-10 · Hybrid inverter EF-PCS-24A scalable, multi-source home-energy system designed for demanding whole-home backup goals.
Explore OCEAN Pro →Your proposal will name the exact battery, inverter, controller, quantity, and configuration.
Choose what stays on
What do you need the battery to do?
More of the home
Support more circuits with load controls and enough storage for your priorities.
- Load controls
- Multiple batteries
- HVAC evaluation
Smarter energy use
Use stored solar power when it matters most.
- Monitoring
- Utility configuration
- Future expansion
Sizing your backup
Runtime depends on what you power.
- Which circuits must stay on?
- How much power can they draw at once?
- How long should the battery support them?
- Can solar recharge it during the day?
- Do you want automatic load controls?
Plan for Florida outages
A battery is not unlimited power. We help you protect the loads that matter most and set realistic runtime expectations.