This tool recommends Fortress Power battery storage and inverter systems based on your energy needs. It does not size solar panels or any other generation equipment.
⚠️ All data and recommendations provided by this tool are for reference purposes only. Results are estimates based on the information you provide. Please consult the Fortress Power team for personalized system design and professional recommendations.
Step 1 of 4
Project details
Tell us about the installation so we can suggest the right battery and inverter combination.
Installation type
Off-grid installation
Main electrical panel
What are you backing up?
Critical load panel details
amps
kW
kW
How much passthrough do you need?
amps
Installation location
Grid export
Grid export is not available for off-grid installations.
AC Signal Type
Step 2 of 4
Select your loads
Choose the appliances you want backed up. Click the + button to add a load — once added, you can edit the quantity, watts, and hours directly in the row. You can also add custom loads at the bottom.
Quick start — select a package
Not sure where to start? Select a package below based on your typical needs — it will pre-populate your load list automatically. You can still add, remove, or adjust any load afterwards.
Load
Category
Qty
Run W
Surge W
Hrs/day
Selected loads
Load
Category
Qty
Run W
Surge W
Hrs/day
Custom load requirements: Running watts, surge watts, quantity, and hours per day are all required — missing values will affect your results. If you don't know the surge watts, a good rule of thumb is 2× the running watts.
Added custom loads
Load
Category
Qty
Run W
Surge W
Hrs/day
Estimated backup duration
3days
1 day7 days
Typical outage — covers most storm or short-term disruptions.
For estimation purposes only. The number of backup days selected does not affect the system recommendation.
Running watts
0.00kW
Surge watts
0.00kW
Daily energy
0.00kWh/day
Step 3 of 4
Suggested systems
Based on your load profile, here are the battery and inverter combinations we recommend. Select one to continue.
⚠️ Outdoor installation selected. Products not rated for outdoor use have been excluded from these results.
Running watts
0.00kW
Surge watts
0.00kW
Daily energy usage
0.00kWh/day
Step 4 of 4
Project summary
Review your full configuration below. Save as PDF or request a follow-up from our team.
Contact & follow-up
Please select whether you are a Homeowner or Installer before submitting.