How long will your power actually last during a blackout?
Pick the devices you'd actually run, how long the blackout lasts, and whether you have solar. This tool calculates the real Wh your setup needs — and tells you exactly which station in our catalog covers it, if any does.
🔋 Run the simulation
Devices to keep running (quantity):
How this calculation works
- Daily Wh, not just peak watts. Each device has a realistic daily runtime. The tool sums real daily consumption, not worst-case peak load.
- 85% usable capacity. No battery delivers 100% of its rated Wh in practice. This tool applies the same 85% factor used across our calculators.
- Solar reduces the deficit. If the panel produces more than you consume daily, the setup is flagged as self-sufficient. Otherwise it shows the net Wh still needed from the battery each day.
- Physical limits still matter. If no product covers a multi-day outage, add solar input or reduce continuous loads before oversizing blindly.
For chemistry and warranty considerations once you know your target capacity, see LFP vs NMC Battery Chemistry.
Common questions
A compressor fridge cycles on and off but can average a high daily consumption over 24 hours. It is often the single largest load in a home blackout scenario.
The load and duration selected exceed what a single charge can sustain without recharge. Add solar, reduce duration, or remove non-essential devices.
No. The solar sizing calculator estimates panels for a daily target. This tool tells you which power station survives a specific blackout scenario.
Confirm this blackout setup
Send the simulator result and we will check the recommended setup before you buy.