Free backup-power sizing tool
Tell Us What Must Keep Running. We’ll Match the Power Station.
Start with the devices you actually need during an outage. The Sales Engineer checks power, startup demand, battery energy, voltage and solar before showing products that fit.
No account required · No electrical background required
Simple process
From household need to product match
Use the common US appliance size when you know it. If you have the actual nameplate watts, those values take priority.
Choose the loads
Refrigerator, sump pump, furnace blower, well pump, Wi‑Fi, lights and other essentials.
Set outage duration
Tell us how long power may be out and whether solar charging is available.
Get screened matches
Products are shown only after the tool checks the technical requirements it knows.
Product knowledge
Built around products we actually track
The current recommendation engine focuses on Renogy and BLUETTI. We separate continuous output, motor-start surge, battery capacity, solar input, expansion capability, voltage and special operating modes.
Portable power & LiFePO4 systems
Used for lighter essential-load plans, selected RV applications and current Renogy battery options we track.
Portable & expandable backup
Used for 2–3kWh-class systems, higher-starting loads, expandable battery plans and selected 120/240V configurations.
Good use cases
Problems the Sales Engineer is built to handle
Size first. Buy second.
Let the load decide the product.
Enter what must keep running and get the minimum technical requirements before spending money on a power station or battery system.
Not sure which backup power system fits your home?
Tell our Backup Power Sales Engineer what you need to keep running. We’ll estimate the load and match it against verified Renogy and BLUETTI specifications.
Ask the Sales Engineer →