Define backup priorities
Separate must-run circuits from convenience loads and whole-home ambitions.
Plan around the loads that matter
Plan Backup Power for the Loads Your Home Needs
Compare battery options around essential circuits, starting power, expected outage duration, existing solar, and your electrical configuration.
Clear terms before you commit
- Free assessment
- Compare available systems
- Manufacturer information reviewed
- Final proposal depends on property evaluation
- Installation availability varies by location
Example configuration
Compare usable architectures
Evaluate energy capacity, power, expandability, and solar integration together.
Confirm installation scope
Electrical configuration, permitting, and compatible equipment still require a site review.
Questions to resolve before choosing
“Whole-home backup” only means something when the supported loads are defined.
Battery capacity describes stored energy; power ratings and electrical design determine which appliances can run together. Outage duration also depends on actual use and solar conditions.
Ask the provider to address:
- Which circuits must stay on, and which loads can be managed?
- Can the design start central air, a well pump, or other large motors?
- How long should the battery last without useful solar production?
- Can the existing solar, panel, and service equipment integrate safely?
Backup is an energy plan
Start with loads and duration—not a battery logo.
A refrigerator, internet equipment, lights, and selected outlets have a different power profile than central cooling, electric heat, well pumps, or broader home backup. A useful design considers both instantaneous power and stored energy.
Find my backup optionsIntegrated example
Tesla Powerwall
An integrated battery and inverter architecture that may suit new solar or backup projects, subject to site compatibility and installer availability.
Modular example
Enphase IQ Battery
A modular AC-coupled architecture that may suit staged capacity and Enphase ecosystems, subject to the selected configuration.
Backup-planning examples
The same battery can serve very different outage goals.
A provider should confirm power, energy, controls, and compatible equipment for the actual property.
Essential-circuit backup
Refrigeration, internet, lighting, medical equipment, and selected outlets may require less capacity than broad home backup.
Cooling during outages
Central air or heat-pump operation requires equipment-specific starting-power and runtime analysis.
Existing-solar retrofit
Battery compatibility, inverter architecture, controls, and how solar behaves during an outage need confirmation.
Longer outage planning
Additional storage, managed loads, useful solar recharge, or a generator may be considered depending on resilience goals.
A measured process
How your assessment works
The short request starts a conversation. Final design, price, availability, and installation scope require property and provider review.
- 01
Choose your project
Share the type of project and a valid five-digit ZIP.
- 02
Send contact details
Tell us how the sales team can follow up with you.
- 03
Review available options
Our team reviews the location, project interest, and any product you selected.
- 04
Confirm the written scope
Any available provider must confirm design, pricing, eligibility, and terms in writing.
System examples
Compare equipment in the right context
Example configuration
Premium California configuration
Tesla Powerwall 3 Solar + Battery Package
Homes on time-of-use rates can produce solar before evening demand peaks, while an outage plan can fall short when storage and backed-up loads are chosen separately.
- Solar
- 10.2 kW DC
- Battery
- 27 kWh nominal
$44,500–$52,000 installed estimate
Example configuration
High-output off-grid equipment package
SunGoldPower SGR-12K20E Off-Grid Solar Kit
Remote homes, farms, and workshops can have several demanding 120/240 V loads but no dependable grid connection to absorb sizing mistakes or low-sun periods.
- Solar
- 4.98 kW DC
- Battery
- 25.6 kWh nominal
$11,946 equipment reference
Example configuration
Solar System Installations Enphase-based configuration
Enphase Premium IQ-5P Home Energy System
Complex roof planes, localized shade, and changing backup goals can make a fixed, centrally converted solar-and-storage design harder to fit and expand.
- Solar
- 10.32 kW DC
- Battery
- 20 kWh usable
$39,000–$46,500 installed estimate
Example configuration
High-capacity battery configuration
ECO-WORTHY 10 kW Off-Grid Power System
Remote properties with high daily use or longer outage plans can outgrow smaller arrays and battery banks, but capacity alone does not establish whole-property independence.
- Solar
- 10.62 kW DC
- Battery
- 30.72 kWh nominal
$12,049.99 equipment reference
Coverage has layers
Warranty terms should match the actual system and installer.
Equipment components and installation workmanship can have separate issuers, periods, exclusions, and remedies. Request the applicable documents before signing.
Read the warranty guideKeep the decision grounded
- Compare exact model numbers and quantities.
- Separate manufacturer coverage from workmanship coverage.
- Confirm registration, monitoring, and maintenance responsibilities.
Battery backup questions
Questions homeowners ask before choosing backup capacity.
These answers are general guidance. Site-specific provider terms control.
Can a battery power my whole house?
Sometimes, depending on battery power, stored energy, the home’s loads, electrical configuration, and load-management strategy. Large appliances may require more capacity or controlled operation. A site-specific load assessment is necessary.
What happens during an outage?
A properly designed system isolates from the grid and supplies the circuits included in its backup configuration. Actual runtime depends on battery charge, active loads, system limits, and any solar energy available to recharge it.
Do I need solar panels to use a home battery?
Not necessarily. Some batteries can charge from the grid where equipment and utility rules allow. Without solar, the battery cannot rely on on-site solar production to recharge during an extended outage.
How long will battery backup last?
Runtime cannot be promised from capacity alone. It depends on usable stored energy, appliance demand, starting loads, reserve settings, battery condition, and solar production during the outage.
Can I expand the battery system later?
Some systems support added battery capacity, subject to model compatibility, equipment limits, code, available space, and installer requirements. Confirm the approved expansion path before selecting the initial design.
Take the next useful step
Plan Backup Power for the Loads Your Home Needs
Compare battery options around essential circuits, starting power, expected outage duration, existing solar, and your electrical configuration.
Find My Backup Options