Find the perfect power station for your needs

Evergreen Off-Grid, LLC
Power Station Estimation Tool
Enter all the things you want to power and for how long. We’ll estimate total watt-hours (Wh) needed and suggest power stations that meet both energy and inverter power (W) requirements.
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1) Your Use Case
How long you need to run without grid/solar recharge.
Covers inverter losses, conversion overhead, and real-world usage.
2) Add Your Loads
Leave watts blank and we’ll estimate from the name (e.g., “LED light”, “laptop”, “mini fridge”, “router”, “CPAP”, “TV”, “fan”). Some loads include duty cycles.
ItemQtyWatts (optional)Hours/DayDaily Wh
Start with lights, fridge, laptop/PC, network gear, pumps, fans, CPAP, etc.
Results
Daily Energy
Peak Load (est.)
Required Capacity
We assume ~90% usable capacity and ~90% conversion efficiency for AC loads (combined ≈ 0.81). Your chosen Design Margin adds extra headroom.
Recommended Power Stations
Tip: If one item has a high surge/starting wattage (e.g., well pump, power tools), pick a unit with ample continuous W and high surge. Manufacturers list surge in specs.
About These Picks
We curate a variety of popular brands like Jackery, EcoFlow, and Anker ranging from 250 Wh to 6000+ Wh capacity.
Disclaimer: For informational and educational purposes only. Estimates are based on typical device wattages and duty cycles. Always verify your device ratings and manufacturer specifications.