Off-Grid Solar Sizing Calculator
Calculate your exact battery and solar requirements for any emergency backup, van conversion, or off-grid setup. Get instant product recommendations with your precise needs.
Precise Sizing
Get exact battery and solar requirements based on your specific appliances and usage.
Top Brands
We compare and recommend products from EcoFlow, Bluetti, Jackery, and more.
Expert Guides
Comprehensive buying guides and tutorials for off-grid living and emergency preparedness.
System Sizing Calculator
Select your appliances or add custom devices to calculate your exact power requirements.
Quick Presets
Top Rated Solar Generators
Based on our testing and user reviews
EcoFlowBest OverallEcoFlow Delta Pro
BluettiBest ValueBluetti AC200MAX
JackeryMost PortableJackery Explorer 2000
Portable Power Stations
Lightweight options for camping, tailgating, and emergencies
EcoFlowBest ValueEcoFlow River 2
JackeryTop RatedJackery Explorer 300
BluettiBluetti EB3A
Compare Top Brands
Side-by-side comparison of the best solar generators
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New to Off-Grid Power?
Start with our comprehensive buying guide that explains everything you need to know about solar generators, battery capacities, and inverter output.
Read the Complete Guide →Planning for Emergencies?
Learn how to calculate the right backup power for your home. Our step-by-step tutorial covers everything from refrigerator sizing to full-home backup systems.
Start Your Emergency Plan →